ML66 Optimal plant - S&W Seed Company Australia

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ML66 Optimal plant - S&W Seed Company Australia
LUCERNE UPDATE 2021

Optimal plant            Pests and           Newly released
  density                Diseases               ML66
 Tips on the easiest     What to look for   Looking for high pest and
 way to check your     and how to manage.   disease resistant lucerne?
  lucerne density.                           ML66 is a great option.
ML66 Optimal plant - S&W Seed Company Australia
S&W Seed Company Australia
14-16 Hakkinen Road
Wingfield SA 5013
AUSTRALIA

T +61 (0) 8 8445 1111
F +61 (0) 8 8445 7777
info@swseedco.com.au

swseedco.com.au

Contributors
Michael Christensen, James Cook, Lucy Damin,
Rob Damin, Tom Damin, Jack Edwards, Tim
Francis, Ian Freebairn, Hugh Graham, Cameron
Henley, Dennis Jury, Shane Kable, Tom McCooey,
Millie Moore, Anthony Telfer, Denham Thompson.

Design and Production
Jaz Effect Design

Printer
                                                          Contents
Hodgson Print                                             Most parts of eastern Australia have
                                                          recently experienced favourable seasonal
                                                          conditions and is set for a fantastic
                                                          autumn season ahead. This guide offers
S&W Seed Company Australia has taken all                  valuable advice to gain the most out of
reasonable care in the preparation of this publication.
The information contained is thought to be correct        your lucerne enterprise in 2021.
at the time of publication. Always seek professional
advice from your local agronomist or S&W Seed
Company representative prior to purchase.                                    On the cover: S&W territory manager Ian
Seeding rates can vary. S&W Seed Company,                                    Freebairn checking on the performance of
Establishment Guarantee™, XtraLeaf®, Goldstrike®,                            an L56 Lucerne pivot with Ella Bailey near
Goldstrike LongLife®, Goldstrike LongLife® XLR8™,                            Tarpeena in South Australia.
XLR8™, Low Bloat™, Super N Fixer™, SOWsmart®,
GTL® and MultiLeaf® are registered trademarks or                             Inside front cover: Contented cattle in
trademarks of S&W Seed Company. Poncho® Plus                                 abundant feed of L56 Lucerne, over sown
and Gaucho® are registered trademarks of Bayer                               with Jackpot Diploid Italian Ryegrass and
Crop Science. Protek™ is a registered trademark of                           Compass Chicory are rotated through four
DLF Seeds. All other company names, brand names                              paddocks to grow more feed and improve
and/or product names referenced, may be registered
                                                                             liveweight gain.
trademarks or trademarks of their respective owners
and/or the particular company.
Copyright © 2021. All rights reserved.
ML66 Optimal plant - S&W Seed Company Australia
05   Tim’s wrap           26   Lucerne Dormancy 5

07   Meet the Team        27   Lucerne Dormancy 3

08   Talking with Tom     28   Best Management Practices

10   Lucerne Dormancy 9   34   Pests and Diseases

16   Lucerne Dormancy 7   37   Varietal Selection Chart

22   Lucerne Dormancy 6   39   Our Team

                                             LUCERNE UPDATE 2021   3
ML66 Optimal plant - S&W Seed Company Australia
T H E      P O D C A S T

                                                                                      Millie Moore
                                                      Territory Manager , Kangaroo Island, Fleurieu
                                                   Peninsula, Upper South East, Mallee & Wimmera

                                            “I feel quite fortunate that in the period that
           SEASON 1                         I decided to pursue the vision that I had,
                                            maybe I was fortunate that it coincided with
 Emerge The Podcast explores the origins    a bit of a shift in the industry as well”
and development behind great innovations    – David Morello, founder at Morellofert
             in agriculture.
                                            Listen to the Emerge Podcast now on Apple
                                            Podcasts, Google Podcasts and Spotify.

WAYS TO LISTEN
ML66 Optimal plant - S&W Seed Company Australia
FOREWORD

Tim’s wrap
Most parts of eastern Australia             Our impressive lucerne range is            digital copy of Emerge magazine direct
have recently experienced                   bolstered by the launch of our long-       to your inbox (or mailbox if you prefer)!
                                            awaited ML66 Lucerne. The second
favourable seasonal conditions                                                         Agricultural field days are the heart of
                                            MultiLeaf® variety released by S&W,
                                                                                       our local communities and bring the
and is set for a fantastic autumn           ML66 brings a high leaf to stem ratio,
                                                                                       agricultural industry together. While
season ahead. I am excited with             perfect for grazing and high-quality hay
                                                                                       only for a few days, it’s great to catch-up
                                            production.
anticipation of the results we will                                                    and ask all the questions in one place.
see on-farm in 2021.                        To help you choose the right lucerne       I’m thrilled to see these slowly returning
                                            from our extensive range, I encourage      as we navigate this new COVID-safe
Now, the demand for high-quality            you to speak to your local S&W territory   landscape, and I can’t wait to meet both
lucerne varieties is high as growers are    manager, for friendly expert advice and    familiar and new faces across Australia
chasing high-value leaf to stem product.    guidance on selecting the right lucerne    throughout 2021.
Varieties like S&W Seed Company Q31,        for your operation.
                                                                                       Best of luck with lucerne season ahead.
SW6330, GLT®60, and proven performer        Also, jump online and visit swseedco.      We’re here to support you and offer
L56, are clear stand-outs when you are      com.au, our refreshed website is a         advice if and when you need us.
looking to produce the quality hay you’ve   go-to hub for all Australian producers,
come to expect from our lucerne range.      providing extensive technical
If dual-purpose grazing and hay fit your    information across our entire product      Tim Francis
system better, you can’t go past our L71,   range, alongside the latest news and       National Sales Manager
SW7403, L92 and SW9720 varieties.           insights. While you’re there, sign-up      S&W Seed Company Australia
                                            to receive our news, updates, and your

                                                                                                 LUCERNE UPDATE 2021               5
ML66 Optimal plant - S&W Seed Company Australia
SW7403
    LUCERNE
Medicago sativa

    Seeding Rate             kg/ha
                                                           A 28-day cutting cycle
    Dryland                    4-8
    High Rainfall/Irrigation 10-20                          provides the potential
    Seed Treatment           Goldstrike LongLife® XLR8™   for eight cuts of hay for
    Description
    Multi-purpose winter active variety providing
                                                                       the season...
    strong persistence and high yields across a wide
    range of environments
                                                            "It's been working out
    Market Segment/Target
    Grazing, hay and silage                                around 2 ¾ tonnes per
    Features
    ƒ Winter active
    ƒ High leaf to stem ratio
                                                                   hectare per cut."
    ƒ High pest and disease resistance

    Benefits
                                                                                Alan Neale
    ƒ Multi-purpose                                        Southwest Hay Supplies St George
    ƒ High yielding
    ƒ Persistent across a wider range of environments

6                     Emerge
ML66 Optimal plant - S&W Seed Company Australia
MEET THE TEAM

Jo Williams
Lucerne Research & Development
In 2010, after five years with SARDI on
the Eyre Peninsula running the NVT
trials, Jo Williams returned home to her
family farm with her husband at Field in
the upper southeast of South Australia.
At the same time, she began work for
S&W Seed Company Australia in lucerne
research and development. Over the
last 11 years, this role has progressed
into lucerne breeder for the Australian
program.
Lucerne has always been a passion for
Jo and her family. Their 5,000 breeding
merino sheep operation relies heavily
on lucerne pastures, providing a much
needed, high quality feed option for
their stock. They also produce up to 300
hectares of dryland lucerne seed each
season.
The global lucerne-breeding program
at S&W is heavily focused on producing
high forage and seed yielding varieties,
with high resistance across the pest and
disease profiles. The breeding program is
also focused on a range of traits, including
salt tolerance, low lignin and high-quality
varieties. Having a global program, allows
the breeders at S&W to take advantage
of the two growing seasons in both the
northern and southern hemispheres
each year. This means that they can
concurrently run the screening trials
globally. Jo elaborates on the benefits of
simultaneous breeding programs, “For the
farmer this means quicker turn-around of       There are some very exciting new
material going from the evaluation stage       products that will shortly be available
                                               to domestic growers from the global
                                                                                              “If you want a lucerne
to the commercial stage – Best genetics,
faster.”                                       breeding program. These include varieties      that has high forage,
Plant selections are made across all major
                                               with a range of dormancy from 5-10,
                                               catering for all domestic lucerne growing
                                                                                              great pest and disease
lucerne growing regions globally. These
selections are then crossed to produce F1
                                               regions and end use systems, whether           profile and produces
                                               it be cut and carry or grazing. These
seed, the first generation of seed of a new
                                               varieties have been extensively screened
                                                                                              really good quality,
variety. This breeding line is then entered
into all screening programs, including,
                                               through the forage and seed yield as well      then S&W lucerne is the
                                               as the pest and disease trials, producing
dormancy, forage, seed, salt, pest and
                                               elite, high quality lucerne varieties.         lucerne for you.”
disease trials. Once a breeding line has
shown to meet the high standards that          Jo continues to enjoy the challenge of         When she’s not busy breeding lucerne or
all S&W lucerne varieties must achieve         breeding lucerne varieties that fit a global   sheep farming, you will find Jo with her
to progress in the program, the breeding       marketplace with exceptional yields            husband and two children enjoying the
line is then advanced to the seed build up     and quality. She gains great joy and           beach, savouring a glass of bubbles.
stage and then onto commercialisation.         satisfaction from seeing the S&W lucerne
This process can take up to seven years        varieties performing well for growers and
to ensure that all varieties produced from     adding to the profitability of their farming
the S&W breeding program continue to be        businesses.
leaders in the marketplace.

                                                                                                        LUCERNE UPDATE 2021              7
ML66 Optimal plant - S&W Seed Company Australia
TA L K I N G W I T H T O M

    Tom Damin talking lucerne density

                                                                Tom Damin
                                                           Pasture Research Lead
                                                                  Australia

Lucerne is a perennial plant,                    From this chart you can see in higher
                                                 rainfall and irrigation areas a higher
and its value as a crop is highly
                                                 plant density is optimal because it is
related to the plant density of the              achievable. The plant density in lower
lucerne stand.                                   rainfall scenarios is less because in times
                                                 of moisture stress, if the plant density is
The target plant density however, depends
                                                 too high, competition between plants,
on certain situations and purposes of use.
                                                 simply to survive within the stand, will be
Lucerne is a very poor recruiter of new
                                                 too great and will be detrimental to stand
plants from seed, and because of this we
                                                 life.
can’t rely on it to ‘self-thicken’ stands that
are starting to thin out. This also means        However, in higher moisture situations,
that you need to start with your optimal         such as irrigated areas, the higher
plant density when establishing lucerne          plant density is desirable because as
in the first place.                              the number of plants per square metre
                                                 increases, so does the potential yield
Tom Damin, S&W Seed Company’s                                                                   Roughly 1/10th of a square metre, as
                                                 of the stand if there is no limitation on
Pasture Research Lead for Australia, says                                                       outlined within the ‘square’ made by
                                                 available moisture and nutrients. This
that, “Generally lucerne tends to thin out                                                      these boots contains 4 plants. Our
                                                 also explains the different recommended
in most situations in the first 12 months                                                       simple calculation of 10 x 4 gives an
                                                 sowing rates for lucerne in different
to match the growing conditions it is                                                           approximation of 40 plants/m2 for the
                                                 rainfall areas.
in, particularly in response to moisture                                                        paddock. For best results, take counts
availability.                                    Tom also believes that plant density is        as you walk across the whole paddock
                                                 also a very useful guide to determine          and then form an average. It is easiest
“However, it is a good practice to work
                                                 when a lucerne paddock has reached the         to see individual plants as they are
on trying to establish a lucerne stand
                                                 point where it is not able to be productive    shooting fresh growth following a
with close to the optimal plant density to
                                                 enough and re-establishment or removal         grazing or cutting event.
begin with. This saves on seed cost and
                                                 could be an option.
reduces the risk of creating too much
plant competition within the stand to            “If plant density dips 30 percent below       Tom believes the easiest way to check for
begin with.”                                     the ideal after six months in the table, it   plant density is to make a ‘V’ with your
                                                 is probably time to consider options.”        boots, then count the number of plants
One of the most limiting factors to plant
                                                                                               within the ‘square’ that is made if you
density and survival of lucerne is rainfall      “In dryland areas, this may be topping
                                                                                               use the ends of your shoes as a guide.
and water availability. Tom believes the         the lucerne up by sowing in a companion
                                                                                               An average size 12 foot will give you an
following chart is a good guide to match         species for the short term, to boost the
                                                                                               area covered roughly 1/10th of a square
your situation to your target plant density.     productivity while recognising the plant
                                                                                               metre, so multiply your plant count by 10,
                                                 numbers in the stand are still producing a
                                                                                               and you have a rough calculation of plant
                                                 considerable amount of quality feed until
 Water             Plant density after six                                                     density per metre squared. i.e. you put
                                                 the lucerne has finally thinned out too
 availability      months                                                                      your boots together and count 4 plants;
                                                 much.”
                                                                                               4 x 10 = 40, so you have roughly a plant
                                                 “In irrigated areas, the decision may be      density of 40 plants/m2. If you do this a
 450mm            40-50 plants/m2               greater than the cost of re-establishment     an even better indication where your
                                                 due to the higher input and output            stand is at, and if your plant density is
 Irrigation        >100 plants/m2
                                                 expectations.”                                adequate or not.

8                 Emerge
ML66 Optimal plant - S&W Seed Company Australia
GTL®60                                High leaf to stem ratio

Lucerne                               Broad and low set crown

                                      Rapid regrowth after grazing or cutting

These traits make S&W Seed Company GTL®60
Lucerne the ideal hay and grazing lucerne for a
persistent quality stand.
The GTL stands for Grazing Tolerant Lucerne,
GTL®60 has proven to be a top performer in
persistence and grazing tolerance.
Talk to your local rural store about S&W GTL®60.

                                                      Image: Catombal Park, Wellington NSW
ML66 Optimal plant - S&W Seed Company Australia
LUCERNE DORMANCY 9

 ML99 MultiLeaf®                                        SW9720                                                L91
 LUCERNE                                                LUCERNE                                               LUCERNE
 Medicago sativa                                        Medicago sativa                                       Medicago sativa

 Seeding Rate             kg/ha                         Seeding Rate             kg/ha                        Seeding Rate             kg/ha
 Dryland                    4-8                         Dryland                    4-8                        Dryland                    4-8
 High Rainfall/Irrigation 10-20                         High Rainfall/Irrigation 10-20                        High Rainfall/Irrigation 10-20

 Seed Treatment           Goldstrike LongLife® XLR8™    Seed Treatment           Goldstrike LongLife® XLR8™   Seed Treatment                   Goldstrike LongLife®

 Description                                            Description                                           Description
 Rapid establishing highly winter active lucerne        Outstanding yields and quality under salty            An economical option with strong growth in
 with an increased forage/fodder quality                conditions                                            autumn and winter maximising year round
                                                                                                              production
 Market Segment/Target                                  Market Segment/Target
 Grazing, hay and silage                                Grazing, hay and silage                               Market Segment/Target
                                                                                                              Grazing, hay and silage
 Features                                               Features
 ƒ MultiLeaf® expression                                ƒ Highly winter active                                Features
 ƒ Highly winter active                                 ƒ Developed in saline conditions                      ƒ Economical option
 ƒ Excellent seedling vigour                            ƒ High leaf to stem ratio                             ƒ Highly winter active
                                                                                                              ƒ Outstanding seedling vigour
 Benefits                                               Benefits
 ƒ Higher leaf component compared to other highly       ƒ Improvements under saline conditions                Benefits
   winter active varieties                              ƒ Extended cutting and grazing opportunities in       ƒ Extended grazing ability and hay in autumn and
 ƒ Rapid establishment                                    autumn and winter                                     winter
 ƒ High quality winter grazings                         ƒ High yields and quality                             ƒ Good for rotations in both dairy and cropping
                                                                                                              ƒ Quick to establish and to first graze or cut

 L92
 LUCERNE
 Medicago sativa

 Seeding Rate             kg/ha
 Dryland                    4-8
 High Rainfall/Irrigation 10-20

 Seed Treatment           Goldstrike LongLife® XLR8™

 Description
 Multiple hay and silage opportunities throughout
 the season and in a range of environments

 Market Segment/Target
 Grazing, hay and silage

 Features
 ƒ Highly winter active
 ƒ Very quick regrowth after cutting or grazing
 ƒ High forage yield

 Benefits
 ƒ Multiple opportunities for high quality hay and
   silage cuts year round
 ƒ Persistent under a wide range of conditions         Image: SW9720 closeup.
 ƒ Suited to a wide range of soil types

10                 Emerge
FA R M E R F E E D B AC K | L U C E R N E

Dairy impressed by L92
For a Yarradulla Dairy, situated near Mundulla in the South         The 300 cow herd at Yarradulla calves all year round and is fed
East of South Australia, growing quality green feed over the        a combination of pasture, hay, silage and grain. The L92 pivot is
arid summer period is critical for milk production for their 300    direct grazed and provides a few kilograms of high quality green
Holstein cows. After discussions with their local agronomist, the   feed to boost milk production through the dry six month summer
Schmidt’s planted S&W Seed Company L92 Lucerne on an 18             to autumn period, also bulking up winter feed supplies when the
hectare pivot. They were impressed by its overall production and    dryland is growing, but growth rates are slow.
its ability to handle the wet patches, which comes from excellent
                                                                    The Schmidt’s were so impressed with L92 they said they’re
disease resistance in the variety.
                                                                    “hoping to get four to five years out of it’s stand and then will
The Schmidt’s chose the highly winter active L92 because they       re-seed to keep production at its peak to meet the pasture needs
need as much feed as possible through late autumn and winter,       of the herd.” They are also planning on getting another pivot
along with good growth through summer. Lucerne is a great           planted down with L92 this spring.
pasture to grow in the Mundulla environment and responds well
to irrigation through the long, hot, dry summers that the region
faces every year.                                                   Image: Brad and Evan Schmidt are impressed with L92‘s ability to
                                                                    handle the wet areas on their Yarradulla Pivot in the South East of
                                                                    SA, pictured with Josh Modra (Centre).

                                                                                                        LUCERNE UPDATE 2021              11
FA R M E R F E E D B AC K | L U C E R N E

L92 just right for
Dalby’s climate
Kody Kajewski’s farm is just outside of Dalby, on the Darling
Downs, in Queensland.
After speaking to S&W Seed Company territory manager Paul
Kleinhanss, Kody planted S&W Seed Company L92 Lucerne, as
he was after a variety that could handle Dalby’s hot often dry
summer climate.
Kody was very impressed with the L92 variety saying, “Not only
does it perform extremely well in winter time, it also backs it up
with performance in the warmer months with excellent yields.”
L92 is known for its excellent winter production, it’s rapid
regrowth after cutting and it’s high resistance to multiple pests
and diseases.
“We have been very impressed with the L92,” Kody remarked, “It
grows to a good height whilst still maintaining great leaf retention
even in the dry hot weather.”
Kody went on to say that they’ve also found that when irrigating
it, “It doesn’t need the same amounts of water as the Q75 we
grew to receive similar yields. Our last cut went 66 bales per
acre, with an average bale weight of 24 kilograms.”
L92 - another quality lucerne product from the S&W Seed
Company portfolio.

                                                                       Image: (left) A healthy stand of L92 on Kody Kajewski's Dalby
                                                                       property.

                                                                       Image: (top) Showing impressive growth and leaf prior to cutting
                                                                       and baling.

                                                                       Image: (bottom) Under irrigation following first baling.

12               Emerge
T R I A L R E S U LT S

Live Weight Grain Trial
Penfield Research Station | Trial Sown 05/08/2016

                                                                              Total average kg/day weight gain
                                                                                                                                                              Kg/Day weight                      DM t/Ha
ƒ An irrigated six hectare paddock was divided into 12 half                                                                                                   gain average                       produced total
  hectare sections. On August 5, four of these sections were each                                      L92                                                    1.32                               7.7
  sown with L92 Lucerne, Sequel and SARDI 10 Series 2.                                                 Sequel                                                 0.95                               6.6
ƒ Sowing rate was kilograms per hectare.                                                               SARDI 10 Series 2                                      1.25                               7.2

ƒ 24 Santa Gertrudis steers were split into three grazing                                                                    1.80                                                                                    7.8
                                                                                                                                                     7.7t                                       7.2t
  groups of eight steers, with an average starting weight of 325                                                             1.60                                                                                    7.6
  kilograms.                                                                                                                 1.40                                                                                    7.4
                                                                                                                                                                       6.6t
ƒ The three groups simultaneously grazed each of the varieties

                                                                                       Total average kg/day weight gain
                                                                                                                             1.20                                                                                    7.2
  throughout the duration of the trial.
                                                                                                                             1.00                                                                                    7

                                                                                                                                                                                                                           Total DM t/ha produced
ƒ The trial ran for 12 weeks, in which each variety at least would                                                           0.80                                                                                    6.8
  be grazed for a four week duration by each group of cattle.
                                                                                                                             0.60                                                                                    6.6
ƒ No other sources of feed or supplements were given to the                                                                  0.40                                                                                    6.4
                                                                                                                                             117%                      100%                    110%
  animals.                                                                                                                                    1.32                      0.95                   1.25
                                                                                                                             0.20                                                                                    6.2
                                                                                                                                            kg/day                    kg/day                  kg/day
                                                                                                                             0.00                                                                                    6
                                                                                                                                              L92                     Sequel              SARDI 10 Series 2
DISCUSSION:
                                                                              Average kg/day weight gain
The trial protocol dictated that all three varieties would be grazed                                   Average kg/day
                                                                                                                                                            First rotation         Second rotation            Third rotation
equally by each cattle group. Also all of the varieties would be                                       weight gain
simultaneously grazed by the three cattle groups. Throughout the                                       L92                                                  1.10                   1.30                       1.55
12 week period, each group of cattle spent four weeks on each                                          Sequel                                               0.92                   0.95                       0.97
variety, with the three groups moving through the paddock on a                                         SARDI 10 Series 2                                    1.05                   1.28                       1.41
different variety each. Each cattle group was weighed initially and
then weighed again after spending four weeks on a variety. Over                                                           2.00
                                                                              Average kg/day weight gain

the 12 week period all three lucerne varieties were exposed to the                                                        1.80
                                                                                                                          1.60
same grazing conditions and all cattle groups had grazed each                                                             1.40
                                                                                                                                                                                                         L92
lucerne variety equally.                                                                                                  1.20
                                                                                                                          1.00                                                                           Sequel
By running the trial this way, the only changing variable throughout                                                      0.80                                                                           SARDI 10 Series 2
                                                                                                                          0.60
the 12 week period is which of the lucerne varieties that the cattle                                                      0.40
would be grazing, eliminating other factors that might influence                                                          0.20
the weight gain results.                                                                                                  0.00
                                                                                                                                    First Rotation    Second Rotation        Third Rotation
Conditions were favourable for establishment in the middle of
August and as soon as the lucerne was established enough to be                 Average kg dm/ha/day
grazed the cattle were sent in. The first four week grazing period                                         Average kg
                                                                                                                                                            First rotation         Second rotation             Third rotation
showed quite similar results to between the three varieties. As                                            DM/Ha/day

the trial progressed however both the L92 Lucerne and SARDI                                                L92                                              79                     93                          102
10 Series 2 both exceeded the Sequel in dry matter production                                              Sequel                                           65                     82                          91
per day as well as live weight gain increase per day. There was                                            SARDI 10 Series 2                                69                     90                          99
significant summer rainfall throughout the trial period and high
temperatures and the lucerne thrived. It was the improved                                                                 105
varieties that maximised this natural rainfall however and
                                                                                Average kg DM/ha/day

                                                                                                                           95
performed much better than the Sequel in terms of both overall
dry matter production as well as resulting live weight gain on the                                                         85
cattle. With better growth and regrowth from the L92 Lucerne
compared with the Sequel, the result was also better quality                                                               75
feed in terms of digestibility and in the last two grazing rotations
                                                                                                                           65
the L92 Lucerne showed improved weight gain alongside the                                                                                 First Rotation                 Second Rotation                      Third Rotation
improved forage production where the Sequel did not increase its
rate of weight gain.                                                             Feed Tests
                                                                                                                                                            L92                 Sequel                 SARDI 10 Series 2

                                                                                                       ME (MJ/kg)                                           11.20               11.10                  11.40
First, second and third rotation                                                                       % Crude Protein                                      25.70               26.10                  26.10
                                                                                                       % ADF                                                21.2                27.3                   21.8
First rotation            Second rotation           Third rotation
                                                                                                       % NDF                                                31.7                33.8                   32.2
02/12/2016 - 30/12/2016   31/12/2016 - 27/01/2017   28/01/2017 - 24/02/2017                            RFV                                                  212.4               186.1                  207.5

                                                                                                                          Average results from feed test taken prior to grazing throughout the trial (three tests).

                                                                                                                                                                             LUCERNE UPDATE 2021                                                    13
T R I A L R E S U LT S

     Lucerne Oversow Trial
     Penfield Research Station | Trial Sown 15/05/2015

     Many older lucerne stands suffer from thinning and lack of               The ryecorn was also quick to establish, but the Outback Forage
     winter feed. The following trial assessed seven different                Oats did not fare well from a later sowing, ideally the Outback
     species with known excellent winter forage production                    Forage Oats needed longer to establish or needed to be sown
     oversown into a thinning lucerne stand to see which could                earlier in the year in better conditions.
     provide a solution to both problems.
                                                                              The forage cereals however all began to suffer from their short
     ƒ A small block of ML99 MultiLeaf ® Lucerne was sown at 15               season nature, and before the third and final grazing most of the
       kilograms per hectare on September 14, 2011 to be a grazing            Moby Forage Barley and ryecorn was out to head, and looked
       block for sheep.                                                       to recover very poorly from grazing. The Jivet Tetraploid Annual
                                                                              Ryegrass and Icon Diploid Italian Ryegrass both produced
     ƒ The block was winter cleaned each year, and grazed frequently          reasonably well but were a little behind the cereals in the early
       for three and a half years, resulting in significant thinning of the   cuts, however both of these varieties started to produce more dry
       stand.                                                                 matter than the cereals in the final cut. If the trial continued, the
     ƒ After a heavy grazing event, sheep were removed in early               Jivet Tetraploid Annual Ryegrass and Icon Diploid Italian Ryegrass
       May 2015, and then an early winter clean with Sprayseed was            could have at least had another grazing or two and recovered well,
       applied around May 15.                                                 unlike the forage cereals which were well past their prime. The
                                                                              Perun Tetraploid Festulolium did poorly in comparison to the other
     ƒ On May 25, the block was oversown using a disc seeder with             grass species and this is probably due to the original sowing time
       seven different winter active forages in two replications.             of the trial.
     ƒ The varieties trialled were: Ryecorn, Moby Forage Barley,              Perun Tetraploid Festulolium needs to be sown at the earlier end
       Outback Forage Oats, Jivet Tetraploid Annual Ryegrass, Icon            of the sowing window in autumn or it can be sluggish and in this
       Diploid Italian Ryegrass, Perun Tetraploid Festulolium and             trial situation where the winter forages were sown quite late in the
       Cavalier Spineless Burr Medic.                                         window it did not perform well in this trial. The Cavalier Spineless
     ƒ The forage cereals were sown at 50 kilograms per hectare, the          Burr Medic was the least successful variety in the trial, and this
       grasses at 15 kilograms per hectare, and the medic was sown at         is probably due to the management. Eight weeks was much too
       10 kilograms per hectare.                                              early for grazing the Cavalier Spineless Burr Medic, and the variety
                                                                              never recovered well after the first grazing.
     ƒ After eight weeks the trial was grazed, as well as three other
       grazing events throughout the late winter and spring; each             If the Cavalier Spineless Burr Medic was managed correctly, the
       grazing event consisted of three days of hard grazing to achieve       ideal situation would be to let the Cavalier Spineless Burr Medic
       a very low residual, following by up to four weeks of recovery         establish well, then graze it only a few times, and finally let it seed
       time.                                                                  down for following years of production, however in this trial it ever
                                                                              had a chance to seed and was only assessed as an annual.
     ƒ Dry matter production was measured prior to each grazing.
                                                                              Feed quality tests were also taken throughout the trial of the mix
                                                                              of winter forage and lucerne, and the results indicate that all of the
                                                                              material from the winter forages was very high quality.
     DISCUSSION:
                                                                              The lucerne component resulted in all the mixed pasture having
     The practice of oversowing thinning lucerne stands with a winter         very high levels of Crude Protein, good levels of ME and also low
     forage is a good way to get some continued life out of the               levels of ADF and NDF across all species.
     stand, as well as attempt to compete and control winter weeds
     during a problem time of the year for weed control in lucerne.           All of the species in this trial could be used in high performance
     All species in the trial were chosen for their strong winter growth      pasture situations to improve winter production of a lucerne stand
     and establishment vigour. A lighter sowing rate than normal in           while maintaining elite levels of animal production.
     these species was used to oversow the lucerne. All the varieties in
     the trial were compared in dry matter production to a section of
     lucerne that had no winter forage sown.
     This allowed for the additional dry matter production from
     the winter forages to be adequately compared with what
     lucerne would have achieved by itself. The highest dry matter
     production during the trial was from the Moby Forage Barley,
     the vigorous early growth of Moby Forage Barley had the barley
     well established before the first grazing, as well as being able to
     recover from that grazing quickly.

14                Emerge
T R I A L R E S U LT S

                                          Ryecorn     Moby      Outback   Jivet   Icon           Perun      Cavalier         Lucerne

1st Cut – 07/08/2015                       3.1         3.4      2.8       3.0     2.8            2.9        2.7               1.6

2nd Cut – 31/08/2015                       2.8         3.2      2.4       2.2     2.5            2.3        2.1               1.3

3rd Cut – 02/10/2015                       3.7         3.8      2.4       2.9     2.9            2.4        1.9               1.5

4th Cut – 30/10/2015                       2.9         3        2.7       3.2     3.2            2.7        2.7               2

Total                                      12.5        13.4     10.3      11.3    11.4           10.3       9.4               6.4

Additional Total                           6.1         7.0      3.9       4.9     5.0            3.9        3.0               0

                                                                                                                              + DM/ha

Results from feed test taken prior to first grazing

ME (MJ/kg)                                 11.2        11.8     11.85     11.2    11.3           10.85      9.95              10.85

% Crude Protein                            27.7        25       24.35     27.9    25.6           25.6       28.25             29.95

% ADF                                      21.8        20.9     19.15     19.05   18.15          19.75      21.9              21.3

% NDF                                      37.15       39.5     37.8      35.35   35.6           39         37.15             32.45

% Digestibility (DMD)                      74.55       78       78.35     74.55   75.1           72.7       67.25             72.4

Before sowing                                         Eight weeks after sowing

                                                      Ryecorn                            Jivet

Residual after first grazing                          Outback                            Cavalier

                                                      Moby                               Perun

                                                      Icon

                                                                                                         LUCERNE UPDATE 2021               15
LUCERNE DORMANCY 7

 L70                                                       L71                                                    SW7403
 LUCERNE                                                   LUCERNE                                                LUCERNE
 Medicago sativa                                           Medicago sativa                                        Medicago sativa

 Seeding Rate             kg/ha                            Seeding Rate             kg/ha                         Seeding Rate             kg/ha
 Dryland                    4-8                            Dryland                    4-8                         Dryland                    4-8
 High Rainfall/Irrigation 10-20                            High Rainfall/Irrigation 10-20                         High Rainfall/Irrigation 10-20

 Seed Treatment                    Goldstrike LongLife®    Seed Treatment            Goldstrike LongLife® XLR8™   Seed Treatment           Goldstrike LongLife® XLR8™

 Description                                               Description                                            Description
 Cost effective, reliable and robust alternative to        Developed through partnership between NSW DPI          Multi-purpose winter active variety providing
 Aurora                                                    and S&W Seed Company. Regularly outperforms            strong persistence and high yields across a wide
                                                           under dryland and irrigated conditions.                range of environments
 Market Segment/Target
 Grazing, hay and silage                                   Market Segment/Target                                  Market Segment/Target
                                                           Grazing, hay and silage                                Grazing, hay and silage
 Features
 ƒ Economical option                                       Features                                               Features
 ƒ Good leaf retention                                     ƒ Highly grazing tolerant                              ƒ Winter active
 ƒ Good pest and disease package                           ƒ High pest and disease rating                         ƒ High leaf to stem ratio
                                                           ƒ High leaf retention                                  ƒ High pest and disease resistance
 Benefits
 ƒ Reliable yields under wide conditions                   Benefits                                               Benefits
 ƒ Persistent under high disease pressure                  ƒ Highly persistent                                    ƒ Multi-purpose
 ƒ Covered by S&W Seed Company Establishment               ƒ Offers a high quality flexible option                ƒ High yielding
   Guarantee® program                                      ƒ Produces high quality hay                            ƒ Persistent across a wider range of environments

 Q75
 LUCERNE
 Medicago sativa

 Seeding Rate             kg/ha
 Dryland                    4-8
 High Rainfall/Irrigation 10-20

 Seed Treatment             Goldstrike LongLife® XLR8™

 Description
 Demonstrated superior quality characteristics in
 laboratory tests and animal feeding trials

 Market Segment/Target
 Grazing, hay and silage

 Features
 ƒ Winter active
 ƒ Excellent leaf retention with large leaf size
 ƒ High quality

 Benefits
 ƒ Increased greenness in the bale
 ƒ Improved forage quality and winter production
 ƒ Produces high quality feed                             Image: Q75, Conochie Dairy Farm, Scenic Rim Qld. Michael Christensen, Territory Manager,
                                                          Wide Bay Burnett South East Central, Far North Qld & NT.

16                  Emerge
FA R M E R F E E D B AC K | L U C E R N E

Southwest Hay
Supplies praise’s
SW7403
Lucerne and Rhodes grass hay is a major
component of the cropping operations at
Allan and Kerrie Neale's Southwest Hay
Supplies at St George. Normally, in this
region, lucerne crops are irrigated by
pivots or sub surface drip.
"We try not to grow lucerne on the furrow
irrigation out here, as flooding the lucerne
when it's hot often kills it," Allan noted.
Damage to the existing lucerne stands
under the pivot, caused by the lack of
water during the drought, led to the need
for a furrow irrigated paddock to be sown
in 2020, while the pivot was prepared for
resowing.
S&W Seed Company Technical Services
Territory Manager Shane Kable, visited
Allan and Kerrie during 2018-19 to
discuss the option of using S&W Chomper
Forage Sorghum for hay production.
Shane mentioned the benefits of SW6330
and SW7403 lucerne’s in passing. When
it came time to sow the flood-irrigated
paddock, they reached out to the S&W
team to get more details on these lucerne
varieties.
SW7403 was ordered and trial bags of
SW6330 were provided as a comparison
                                               "We normally sow in August," commented          “We are trying not to flood the beds and
to be sown in the same paddock. The
                                               Allan, "so with the early sowing, we're up      keep the water in the furrows, but you
lucerne was sown on April 19, 2020 at 25
                                               to five cuts so far in early February." A 28-   would expect to lose plants [out of the
kilograms per hectare on beds, drilled in
                                               day cutting cycle provides the potential        stand], despite this summer being milder,"
as rows. "We used the machine that we
                                               for eight cuts of hay for the season.           he said.
purchased to sow lucerne into our Rhodes
grass stands. It looked like it nearly all     "That’s the advantage of the longer season      Shane Kable, has confidence that the
came up," Allan said.                          here at St George, we can often get that        SW7403 will continue to perform. "I've
                                               later cut at the end of the season."            seen the plant stand data from S&W’s
                                                                                               contracted seed crops, it's very consistent
                                               When asked about productivity and
 "We would expect                              irrigation scheduling, Allan reported,
                                                                                               and persistent once a plant stand is
                                                                                               established."
quite a few plants not                         "We do either big squares, 8x4x3's, some
                                               rounds but mainly small bales or Barons.        When discussing the results Allan has
to survive the flood                           It's been working out around 2 ¾ tonnes         seen so far under the flood irrigation
irrigation but as you can                      per hectare per cut." Regarding irrigation
                                               amounts and cycles Allan observed,
                                                                                               on the clay soils at St George, "I expect
                                                                                               the SW7403's highly resistant rating to
see by the stand, we've                        "It's been working out to two irrigation        Phytophthora Root Rot would be part of
                                               [cycles] per cut and between 1 to 1.5           the reason for the success."
lost very few."                                megalitres per hectare [per cut]."
                                                                                               Image: Lisa Anderson, Branch Manager,
Due to the need to control a late winter       Allan thought the SW7403 deserved               CGS , St George inspecting Allan Neale’s
influx of aphids as well as weed control,      praise for it’s performance on the furrow       SW7403 at St George Qld.
an early, lighter cut was taken in August.     irrigation and plant stand, "You would
With herbicide and aphid control applied       not normally expect this plant stand to
to the block, another cut was taken about      survive the flood irrigation.
five and a half weeks later. From then on,     “Even in the furrows where the water
the target is to cut every 28 days, weather    covers the plants and we run over the
permitting.                                    plant with the tractor, they are still there.
                                                                                                           LUCERNE UPDATE 2021              17
FA R M E R F E E D B AC K | L U C E R N E

                                                                                                  Image: (above) Ben Coxhead standing in
                                                                                                  SW7403.

                                                                                                  Image: (left) Bruce Coxhead and Ben
                                                                                                  Coxhead inspecting SW7403 Hay at
                                                                                                  “Newhaven Park” Kootingal near
                                                                                                  Tamworth.

                                                                                                  “Emergence was
                                                                                                  very good and it
                                                                                                  got up away better
                                                                                                  than some other
                                                                                                  varieties.”

Plant SW7403 for great hay
Lucerne for hay and occasionally silage is           previously that, “We sow lighter than        the fingers on the rake,” which can affect
the primary enterprise for Bruce and Ben             other people but that way we can grow the    that next cut and potentially the lucerne
Coxhead at “Newhaven Park” Kootingal                 paddocks as partially irrigated when we      stand.
near Tamworth. S&W Seed Company                      have less water available.”
                                                                                                  The seven cut per season target has a
Technical Services Territory Manager
                                                     “Emergence was very good and it, (the        water budget of six megalitres per hectare
Shane Kable, had previously visited
                                                     SW7403), got up away better than some        with irrigation applied as sub surface drip.
Newhaven Park during 2018-19 summer
                                                     other varieties. The paddock had been        “That’s the advantage we have as most of
with Greg Worland of Pursehouse Rural
                                                     two years of corn prior to the lucerne       these blocks are drip (irrigation), so we
Tamworth, establishing a grain sorghum
                                                     being sown,” so was well prepared for        can partially irrigate them if we think
trial on a block being rotated out of hay
                                                     being sown to lucerne.                       it’s going to rain. We’ll stop and start
production.
                                                                                                  irrigations keeping them partially dry
                                                     A late winter influx of aphids and lucerne
With a long history and plenty of                                                                 when there’s rain forecast,” Bruce said.
                                                     flea required two treatments, one of which
experience in growing lucerne, Bruce
                                                     was combined with weed control. Starting     On seeking an overall opinion of the
was asked to try some of the S&W lines
                                                     either late August to early September,       SW7403, the consensus was that so far it
but a lack of water due to drought meant
                                                     the goal is to cut every 28 days weather     had “made some very good hay,” and was
that no new production blocks were being
                                                     permitting, aiming for seven cuts per        comparable to the other 7’s (dormancies)
sown until conditions improved.
                                                     season, but doesn’t always work out that     they had grown in the past. Ben noted,
Improved rainfall and water availability             way. “It has been a challenging season for   “We have that in a couple of blocks,
in early 2020 led to some of the fallowed            hay making,” Ben remarked.                   we have a strip of S&W Seed Company
blocks being prepared for lucerne sowing.                                                         GTL ® 60 Lucerne beside some Sardi 7 and
                                                     “We cut 61 8x3x3 big bales off this block
With a preference for 6-7 dormancy                                                                another block of Sardi 7 as well. It will be
                                                     before Christmas, but it was more like
lucernes, SW6330 and SW7403 were                                                                  good to sit down and compare them all at
                                                     a cut and a half by the time we waited
discussed with the SW7403 being                                                                   the end of the season."
                                                     for the weather to make hay,” Bruce
selected.
                                                     commented, “We’d rather wait, if you cut
The six hectare SW7403 block was                     it and have it laying on the ground, the
sown late April 2020 at 14 kilograms                 lucerne comes up through it and you can
per hectare. Bruce had commented                     break off the new shoots with the tyres or

18               Emerge
FA R M E R F E E D B AC K | L U C E R N E

L71 proving to
be an all-round
performer in the
Northern Rivers
Scott and Therese Humphreys own and
manage Welbatch Pastoral Company west
of Casino, in the Northern Rivers of New
South Wales.
Scott’s family has been associated with
farming in Mummalgum New South
Wales, since 1920. Originally starting
out with dairy operations, where they
successfully grew and fed dairy cows
on lucerne twenty five years ago. In
recent times they have focused mainly
on breeding Santa Gertrudis/Hereford
cross, European Union accredited steers
and heifers for the local market, as well
as running a Santa Gertrudis stud which
was established in the late 1980’s.
The 2,000 acre property consists mainly
of native pastures in rainforest country,
backing onto the Richmond Range. In
recent years the decision was made to
go back to growing lucerne on the fertile
alluvial creek flats.
With significant genetic improvement over
the years, Scott wanted to grow a highly
persistent variety with a good balance
between annual yield and forage quality.
After consulting with his local agronomist
at Nutrien Ag Solutions in Casino,
S&W Seed Company L71 Lucerne was
recommended, having been a high
performing variety in the region and
ticking all the right boxes for Scott’s
enterprise.
“We leant towards L71 because of its          “The attraction of lucerne for us is the        Image: Scott Humphreys of Welbatch
winter activity and its hardiness,”           high protein content and its survivability      Pastoral NSW with Denham Thompson,
explained Scott.                              – we hope to get at least three to five years   S&W Seed Company Territory Manager,
                                              out of this paddock, with high production       Southern Qld & Northern NSW, discuss the
“In the year we established this paddock,
                                              through the summer period,” said Scott.         performance of L71.
it was about the worst conditions you
could get to establish a dryland block of     Scott noted a standout feature of L71,
lucerne and to its credit, it established
well and really has been very productive      “We’ve found the variety has very good
for us in the 18 months since we planted.”    leaf retention, even in difficult hay
                                              making conditions.”
Scott’s goal in planting the paddock was
to grow and conserve high quality fodder      “This block was cut two weeks ago
through the warmer productive months          and achieved excellent yield results,”
to assist in offsetting the cost of feeding   continued Scott, “It was beautiful fine
bulls, supplementing steers and also          stemmed lucerne with plenty of leaf. Both
provide an opportunity to finish some         blocks have been performing really well
cattle.                                       and we hope to be making more hay here
                                              in two to three weeks time.”

                                                                                                          LUCERNE UPDATE 2021              19
T R I A L R E S U LT S

     L70 v Aurora
     ƒ L70 Lucerne offers higher disease and pest                                AGRONOMIC FEATURES                                                        High resistance to more pests and
       package compared to Aurora.                                                                                                                         diseases
                                                                                 S&W Seed Company L70 Lucerne has                                          Improved persistence across all rainfall
     ƒ Superior forage genetics - higher leaf to                                 become a leading winter active lucerne                                    zones.
       stem ratio.                                                               variety in the Australian market and
                                                                                 an excellent fit for both grazing or                                      Very good forage quality
     ƒ Minimum 90 percent germination                                                                                                                      Fine stems and superior leaf retention
                                                                                 forage production. The L70 Lucerne
       standards exceeds current minimum                                                                                                                   compared to other winter active
                                                                                 advantage compared to Aurora include
       certified standard for Aurora of only 65                                                                                                            varieties.
                                                                                 the following agronomic characteristics:
       percent.
                                                                                 Better establishment vigour
     ƒ L70 Lucerne seed production is derived
                                                                                 Consistently faster to establish,
       from dryland seed production stands only.
                                                                                 providing a competitive edge. Ideal for
       This ensures the dryland integrity and
                                                                                 undersowing crops or in pasture mixes.
       performance of L70 Lucerne is maintained
       when utilised in dryland grazing                                          Higher winter production (activity
       enterprises.                                                              rating of 7 vs 6)
                                                                                 Faster to recover after cutting or
     ƒ These attributes, combined with superior
                                                                                 grazing and extends growth to bridge
       plant genetics, makes L70 Lucerne an
                                                                                 late-autumn and early spring feed gaps.
       excellent new alternative to Aurora.
                                                                                 Superior yield
     ƒ L70 Lucerne offers producers higher
                                                                                 Greater year-round returns from hay
       returns and allows them to plant with
                                                                                 and grazing and increases nitrogen
       confidence knowing they are covered by
                                                                                 fixation in rotations.
       the Establishment Guarantee™ program,
       whereas common lucernes are not.

                                                                                                                                                                    LEAF TRAIT COMPARISON

                                                                                                                                                                 L70 LUCERNE (LEFT) EXHIBITING
     DISEASE RATING COMPARISON                                                                                                                                    HIGHER LEAF CARRYING TRAIT
                                                                                                                                                                  COMPARED TO OLDER PLANT
        VARIETY           SPOTTED         BLUE GREEN          PHYTOPHTHORA             ANTHRACNOSE                       BACTERIAL             STEM              GENETICS EXHIBITED IN AURORA
                          ALFALFA            APHID              ROOT ROT                                                   WILT              NEMATODE
                           APHID
                                                                                                                                                                            (RIGHT)

     L70 Lucerne              HR                HR                     R                        R                            R                   R
     Aurora                   HR                HR                     R                       MR                           LR                   R

                                                                                                                                                                                  L70     AURORA
        L70 LUCERNE V AURORA                                                                        TRIAL RESULTS
        YIELD RESULTS & PRICING COMPARISON                                                                                                                    Increased
                                                                                                                    20
        L70 Lucerne offers very competitive pricing to Aurora and                                                                                             Forage Quality
        therefore similar per hectare input seed costs.
                                                                                                     Yield (t/ha)

                                                                                                                    15      L70              Aurora           Better Disease
                                                                                                                            18.5              17.0            Profile
                                                     L70                   AURORA

         Total yield                              18.5 t/ha                17.0 t/ha                                                                          Higher DM
                                                                                                                    10
                                                                                                                                                              Production
         Hay returns/ha at $200t                 $3,700/ha              $3,400/ha
                                                                                                                                                              Increased
                                                                                                                     5
              EXTRA HAY RETURNS                $300 PER HECTARE, PER YEAR                                                                                     Germination %
                                                                                                                                   Variety
        Source: S&W Seed Company, L70 Lucerne Grazing Trial, 2011, Penfield Research Station.
        Five years, four irrigated sites, 46 cuts.                                                                  EIGHT PERCENT                             Establishment
        Locations: Virginia SA, Struan SA, Forbes NSW & Wagga Wagga NSW.                                            YIELD INCREASE                            Guarantee™

     GERMINATION STANDARDS COMPARISON
                VARIETY                     SEEDS/KG          SEEDS SOWN/M2              MINIMUM                         VARIABLE             ESTABLISHED RATE
                                                                 @ 4KG/HA              GERMINATION                       SEEDS /M2                  50%
                                                                                            %                              SOWN                                               38 percent
     Goldstrike LongLife L70  ®
                                             300,000                 120                       90%                         108                        54                   increase in plant
     Lucerne                                                                                                                                                                establishment
     Coated Aurora                           300,000                 120                       65%                          78                        39                      per m2 with
     *Minimum certified standard for Aurora Lucerne is 65 percent.                                                                                                           L70 Lucerne

20                 Emerge
T R I A L R E S U LT S

                                                                                                                                                                            15 percent
                                                                                                                                                                          better weight
Live Weight Grain Trial                                                                                                                                                     gains with
                                                                                                                                                                           L71 Lucerne
Penfield Research Station | Trial Sown 23/05/2014

Throughout the duration of the trial, all varieties were exposed
to the same environmental conditions and assessed equally                      Total average g/day weight gain
by being grazed simultaneously by three grazing groups
                                                                                                                                             Kg/Day weight gain average           DM t/Ha produced total
of steers; one group on each variety at any time. With each
                                                                                                             L71                             1.41                                 5.012
cattle group grazing each different variety for a four week
                                                                                                             Aurora                          1.23                                 4.592
rotation, this allowed us to exclude the differences in the
                                                                                                             SARDI 7 Series 2                1.25                                 4.872
grazing performance of the different cattle groups from being
a variable factor.                                                                                                  1.80                                                                       5.1
                                                                                                                                                           4.592t              4.872t
An irrigated six hectare paddock was divided into 12 half hectare                                                   1.60                                                                       5
sections. On the May 23, four of these sections were each sown with                                                 1.40                                                                       4.9
L71 Lucerne, Aurora, and SARDI 7 Series 2.

                                                                               Total average kg/day weight gain
                                                                                                                    1.20
                                                                                                                                                                                               4.8
Sowing rate was 15 kilograms per hectare.                                                                                        5.012t
                                                                                                                    1.00

                                                                                                                                                                                                           Total DM t/ha produced
                                                                                                                                                                                               4.7
24 Hereford steers were split into three grazing groups of eight                                                    0.80
steers, with an average starting weight of 299 kilograms.                                                                                                                                      4.6
                                                                                                                    0.60

The three groups simultaneously grazed each of the varieties                                                                                                                                   4.5
                                                                                                                    0.40          115%                      100%                102%
throughout the duration of the trial.                                                                                             1.41                       1.23               1.25           4.4
                                                                                                                    0.20
                                                                                                                                 kg/day                    kg/day              kg/day
The trial ran for 12 weeks, in which each variety at least would be                                                 0.00                                                                       4.3
grazed for a four week duration by each of the four grazing groups.                                                               L71                      Aurora      SARDI 7 Series 2

No other sources of feed or supplements were given to the animals.                             Feed Tests
                                                                                                                                                    L71               Aurora                SARDI 7 Series 2

                                                                                                                  % Dry Matter                      17.20             16.40                 14.70
                                                                                                                  ME (MJ/kg)                        11.50             11.70                 11.70
DISCUSSION:
                                                                                                                  % Crude Protein                   30.20             31.40                 32.00

Throughout the duration of the trial, all varieties were exposed to                                               % ADF                             24.9              26.5                  25.7

he same environmental conditions and assessed equally by being                                                    % NDF                             30.5              31.8                  30.7

grazed simultaneously by the three grazing groups of steers; one                                                  RFV                               212               199.7                 208.7
group on each variety at any time. With each cattle group grazing                                Average results from feed test taken prior to grazing throughout the trial (three tests).
each different variety for a four week rotation, this allowed us to                            Lucerne average kg dm/ha/day
exclude the differences in the grazing performance of the different
cattle groups from being a variable factor.                                                                       Average Kg
                                                                                                                                                    First rotation        Second rotation           Third rotation
                                                                                                                  DM/Ha/day
The trial focused on the true variable being the variety of lucerne                                               L71                               62                    57                        60
that was being grazed. During the trial measurements on dry matter                                                Aurora                            57                    52                        55
production of the varieties were also taken, as well as samples taken                                             SARDI 7 Series 2                  60                    57                        57
for feed quality analysis. All varieties established well, and the cattle                                           70.00
performance in the first four week rotation was good all round. Prior
                                                                                               kg/day weight gain

                                                                                                                    60.00
to the trial commencing there was a very dry early spring period,                                                   50.00
without much natural rainfall. The trial was irrigated, but there was                                               40.00
still a lack of soil moisture deep in the soil profile and this caused                                                                                                                               L71
                                                                                                                    30.00
some periods of moisture stress between watering.                                                                                                                                                    Aurora
                                                                                                                    20.00
                                                                                                                                                                                                     SARDI 7 Series 2
This resulted in particularly the second rotation showing a drop off                                                10.00
in dry matter production from all varieties, but also daily weight gain                                             0.00
in the Aurora and SARDI 7 Series 2. However, dry matter production                                                          First Rotation      Second Rotation Third Rotation
and weight gain began to increase again in the third rotation across
                                                                                             Average kg/day weight gain
all varieties.
                                                                                                                  Average Kg/Day
                                                                                                                                                    First rotation     Second rotation              Third rotation
The results indicate that the L71 Lucerne was able to maintain quality                                            weight gain

and resulted in higher levels of intake during these times. The feed                                              L71                               1.27               1.26                         1.71

analysis shows a lower percentage of ADL and NDF values, this                                                     Aurora                            1.20               0.97                         1.53
                                                                                                                  SARDI 7 Series 2                  1.26               1.07                         1.41
could likely account for the higher levels of kilograms per day weight
gain achieved by the L71 Lucerne throughout the trial. The results
                                                                                                                    2.50
are consistent with the key features of L71 Lucerne; which is a highly
                                                                                               kg/day weight gain

persistent and high quality variety, able to perform in both irrigated                                              2.00
and dryland conditions that are less than ideal.                                                                    1.50
                                                                                                                                                                                                     L71
First, second and third rotation                                                                                    1.00                                                                             Aurora

 First rotation            Second rotation           Third rotation                                                                                                                                  SARDI 7 Series 2
                                                                                                                    0.50

 06/10/2014 - 02/11/2014   02/11/2014 - 30/11/2014   01/12/2014 - 28/12/2014                                        0.00
                                                                                                                            First Rotation      Second Rotation Third Rotation

                                                                                                                                                                     LUCERNE UPDATE 2021                                            21
LUCERNE DORMANCY 6

                                                                                               NEW
 SW6330                                                ML66 MultiLeaf®                        RELEASE        GTL®60
 LUCERNE                                               LUCERNE                                               LUCERNE
 Medicago sativa                                       Medicago sativa                                       Medicago sativa

 Seeding Rate             kg/ha                        Seeding Rate             kg/ha                        Seeding Rate             kg/ha
 Dryland                    4-8                        Dryland                    4-8                        Dryland                    4-8
 High Rainfall/Irrigation 10-20                        High Rainfall/Irrigation 10-20                        High Rainfall/Irrigation 10-20

 Seed Treatment           Goldstrike LongLife® XLR8™   Seed Treatment          Goldstrike LongLife® XLR8™    Seed Treatment           Goldstrike LongLife® XLR8™

 Description                                           Description                                           Description
 Recovers rapidly from grazing and cutting and has     Offers a new generation of MultiLeaf® lucerne with    Broad and low set crown, high forage values, high
 shown excellent persistence                           improved persistence and quality                      ruminant palatability with high pest and disease
                                                                                                             ratings
 Market Segment/Target                                 Market Segment/Target
 Grazing, hay and silage                               Grazing, hay and silage                               Market Segment/Target
                                                                                                             Grazing, hay and silage
 Features                                              Features
 ƒ High pest and disease rating                        ƒ Highly expressive MultiLeaf® trait                  Features
 ƒ Moderately active                                   ƒ Low crown                                           ƒ Low crown
 ƒ High leaf to stem ratio                             ƒ Flexible option                                     ƒ High leaf to stem ratio
                                                                                                             ƒ Rapid regrowth after grazing or cutting
 Benefits                                              Benefits
 ƒ High yielding                                       ƒ Produces high quality hay and silage                Benefits
 ƒ Recovers rapidly after cutting and grazing          ƒ Persistent under heavy traffic                      ƒ Very highly grazing tolerant
 ƒ High stand persistence                              ƒ Can be used in multi operation farming systems      ƒ Produces high quality forage
                                                                                                             ƒ Increased grazing rotations

                                                                                    Like most producers, Malcolm wanted to try this new product to
                                                                                    see if it would fit his system. He had the perfect small paddock for
                                                                                    his own on-farm trail, before committing to planting it on one of
                                                                                    his larger hay blocks.
                                                                                    Malcolm strongly believes in preparation being the most import
                                                                                    thing if you want a successful stand of lucerne.
                                                                                    “This paddock hasn’t had lucerne in it for as long as I can
                                                                                    remember,” recounted Malcolm, demonstrating the perfect way
                                                                                    to break disease cycles caused by pathogens, that can survive for
                                                                                    years in the soil, and infect newly planted lucerne.
                                                                                    The paddock was limed with about two tonnes per hectare in
                                                                                    August, incorporating it before sowing in late October. Lucerne
                                                                                    prefers a pH range of six to eight in calcium chloride, for
                                                                                    maximised performance and nodulation.
                                                                                     “We sowed the paddock at 18 kilograms per hectare and I was
Preparation is key to                                                               really impressed with the speed at which the ML66 established.
                                                                                    The vigour was impressive, especially given how cool and mild
successful establishment                                                            the spring and early summer have been,” Malcolm reported.
                                                                                    The multiLeaf® trait in a semi winter dormant lucerne leads to
of ML66 Lucerne                                                                     increased persistence with a low set crown and high leaf to stem
                                                                                    ratio.
Malcolm Sibley has been producing high quality lucerne hay                          “The season has definitely been very favourable, but the cooler
in Mudgee, New South Wales, for many years. Over the years,                         weather and rain has meant reduced yields in a lot of my other
Malcom has always been keen to be on the forefront of new                           established lucerne paddocks,” Malcolm said, evaluating his
lucerne varieties to the market to asses for himself if they can                    results, “The first cut on the ML66 has produced 98 big square
improve on his yields and quality.                                                  bales over the six hectare paddock.”
After consultation with his local agronomist, Malcolm heard                         “So far I’m impressed with the ML66 and looking forward to the
about S&W Seed Company’s new semi winter dormant, ML66                              second cut.”
MultiLeaf® Lucerne.
                                                                                    Image: Malcolm standing in his paddock of ML66, nearly ready for
                                                                                    its second cut.

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GTL®60 gets the thumbs up
For Brett “Barrel” Barnes, S&W Seed Company GTL ® 60 Lucerne          “On the dryland last year, we were able to cut it five times for
has been the perfect fit for the mixed farming operation he’s in      hay,” Barrel explained, most impressed with the persistence of
charge of as manager of Parklea in Nagambie, Victoria.                the variety. From intense stocking then going straight into hay
                                                                      production, GTL ® 60 has proved itself as the variety to beat.
Barrel runs both a composite ewe operation whilst producing
quality hay for the demanding equine market. Given the                On the dryland country, plant populations have been excellent
pressure to deliver superior hay, confidence in your variety is       and the flexibility that it offers Barrel’s operation is a testament
key.                                                                  to the variety. Barrel states, “Overall, it is the best multipurpose,
                                                                      lamb fattening and hay producing variety we’ve come across.”
                                                                      With the results Barrel has been getting from GTL ® 60, it’s easy to
Barrel was very quick to give GTL® 60                                 see why he is so enthusiastic about this extraordinary variety for
the thumbs up saying, “Given that                                     his operation and the future of lucerne production on the farm.

it is a grazing tolerant variety, I have                              Image: Brett "Barrel" Barnes, Manager at Parklea in Nagambie Vic
                                                                      inspecting his GTL® 60.
seen no compromise in hay quality.”
Barrel uses GTL ® 60 to its full potential throughout the year by
grazing and lambing down his ewes, then locking it all up for
hay in the summer. Barrel has put GTL ® 60 on both dryland and
irrigated stands across the farm for the last six years and has yet
to find a variety that fits his operation better.

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FA R M E R F E E D B AC K | L U C E R N E

                                                                               Image: Dairy heifers grazing a GTL®60 paddock sown in
                                                                               August 2019 at Richard’s property south of Bordertown, SA.

GTL®60 goes the distance
Many of our readers would be familiar with Richard Storch as            Richard sticks to his original August sowing time, rather than
previously featured in S&W Seed Company Emerge magazine.                an autumn sowing like most dryland stands. When asked about
                                                                        this sowing time, Richard boldly stated, “Once I find something
In the 2016 spring edition, Richard explained that after sowing
                                                                        that works, I like to stick with it,” continuing to take advantage
S&W Seed Company GTL®60 Lucerne across 140 hectares,
                                                                        of spring rainfall to allow the seedling stand to establish strongly.
insect pressure resulted in him lodging an Establishment
                                                                        Management is kept simple, working closely with his agronomist
Guarantee claim and resowing.
                                                                        to ensure fertilizer and spray applications are strategically spread
Back in 2016, Richard said, “If I look after the GTL ® 60, I            across the season.
anticipate it will provide my stock with good grazing for another
                                                                        Richard puts a lot of work into his property. Extensive clay
five to ten years.” Well, we can now tell you, five years later, that
                                                                        delving and spreading was performed to improve soil texture
decision has paid off.
                                                                        and structure, and a combination of lucerne and clover pastures
His original stand of GTL ® 60 is still going strong, with seed         established, as well as a crop rotation to maximize production
harvested in January 2021 yielding well. Rainfall events                from paddocks to run both sheep and dairy cattle. “Sheep are
throughout the start of February totalled upwards of 40                 great to have to follow up with in any paddocks needing a clean-
millimetres, and with the strong recovery traits of GTL ® 60,           up,” explained Richard, with lambs currently turned out onto
wether lambs can be turned onto the paddock in late February.           lupin paddocks to utilize any remaining grain left from harvest.
                                                                        Having established pastures at varying growth stages allows him
Since his first sowing, Richard has continued to sow GTL ® 60
                                                                        to always have plenty of feed for stock. In fact, in spring last year,
across his property south of Bordertown, South Australia at six
                                                                        he needed to buy in stock just to try and keep the amount of feed
kilograms per hectare, with 500 hectares in total now sown.
                                                                        under control.

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The aim is to continue to sow more areas with GTL®60, and
with paddocks still producing quality seed and feed for over six
years, it is certainly an investment Richard believes is worth
making. Continual farm development ensures Richard continues       “Once I find something that
a profitable and sustainable enterprise for years to come, with
GTL ® 60 providing the backbone for his perennial pastures.        works, I like to stick with it,”
Images: (left & right) Richard Storch’s original GTL®60 paddock,
sown in August 2015 at 6kg/ha and harvested for seed 4 weeks
prior to these images (images captured February 17, 2021).

                                                                                          Image: Sheep grazing on GTL®60.

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L U C E R N E D O R M A N C Y 5 | FA R M E R F E E D B AC K

L56 makes a convincing case
Sam Martin operates a 350-cow dairy                     The bloat risk Sam was concerned
at Wall Flat in the Murraylands region                  about has hardly crossed his mind since        L56
of South Australia. After many years of                 planting lucerne, “The key is to not put
shying away from lucerne due to other                   them on there when they are starving           LUCERNE
growers’ historical bloat stories, Sam                  – let them on the feed pad first, then         Medicago sativa
decided to take the plunge and run a                    put them on the lucerne.” This concern
small trial of three S&W Seed Company                   has now been eliminated by the TMR
varieties.                                              transition, as feed intake can be strictly     Seeding Rate             kg/ha
                                                        managed.                                       Dryland                    4-8
In autumn 2019, he sowed a swampy                                                                      High Rainfall/Irrigation 10-20
flood bay with S&W L56, Q75 and ML99                    Sam’s approach has allowed him to refine
Lucerne at 25 kilograms per hectare                     his operation and understand what really
                                                                                                       Seed Treatment           Goldstrike LongLife® XLR8™
each and was very impressed with the                    works – with 16 tonnes per hectare of feed
performance of L56. The variety tolerates               needing to be generated from the farm to       Description
waterlogging prone areas well, making                   supply his cows, he plans to sow a further     The benchmark dual purpose grazing and hay
it suited to the swampy river paddocks,                 25 hectares of L56 within his swampy           lucerne in Australia
while the persistence and feed quality of               areas, leading the way to further expand
the variety ensured it could be utilised by             Sam’s dairy operation into the future.         Market Segment/Target
                                                                                                       Grazing, hay and silage
stock for maximum milk production.
The flexibility of the variety in terms                                                                Features
                                                                                                       ƒ High pest and disease rating
of suitability to both grazing and hay
                                                                                                       ƒ High yielding
operations has also been an advantage to                                                               ƒ Semi winter dormant
Sam, as in the last 18 months, they have
                                                        Image: Sam Martin, Wall Flat (Murraylands,
transitioned the farm from grazing into                                                                Benefits
                                                        SA) in his perfectly established L56 pivot,    ƒ Adaptable to a wide range of soil types
a feedlot using the Total Mixed Ration
                                                        sown at 25 kilograms per hectare in            ƒ Produces high quality hay
(TMR) system. Currently rations are being
                                                        October 2020.                                  ƒ Highly persistent
generated from lucerne, maize, ryegrass,
millet and other opportunistic crops. The
aim is to eventually generate their entire
ration on their own farm.
In October 2020, Sam sowed a 16-hectare
half-pivot with L56 on his highland area,
with the stand establishing well and                                                                  Image: Sam utilises the irrigation system to
resulting in a 6 tonne per hectare first                                                              boost recovery and encourage year-round
cut at the start of February. A second                                                                growth. This L56 stand was first cut at the
16-hectare pivot was also sown in spring                                                              start of February 2021, yielding 6 tonnes
of 2020, with this being cut and baled in                                                             per hectare (image captured 2.5 weeks
mid-February.                                                                                         after cutting).

Sam’s favourite features of lucerne,
and particularly L56, is the flexibility
of chemical options in established
stands, the persistence, and the ease
of management with a high return of
valuable feed. Fertilizer application is
kept simple, with a liquid N product
applied after each cut, and the high
resistance ratings of L56 keeping pest
and disease risk to a minimum. Having a
winter activity score of 5, L56 generates
consistent feed year-round, particularly
with the assistance of irrigation in the
drier months.
Within a dairy system, the key is
maximizing nutritional value of feed to
maximize milk yields – utilizing lucerne
provides a consistent product which is
palatable, digestible, and easily managed
with plenty of bulk generated each
season.

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