No fungicide treatment gave any yield benefit or extension of “green-ness” of the canopy.

The dry early winter and spring resulted in low disease pressure.

• Foliar fungicides appear to increase the yield and economic return for susceptible wheat cultivars such as Kellalac, where leaf rust (Puccinia recondita) is present at low to moderate levels.
• An application of fungicide at GS39 (flag leaf stage) to Kellalac at Gnarwarre, appeared to give adequate fungal leaf disease control. 
• Due to the late onset of leaf disease at the Gnarwarre site, there appeared to be little economic benefit derived from the additional fungicide application to Kellalac at GS32.
• Barley (var Gairdner) responded well to the use of foliar fungicides, despite the relatively low level of disease infection. This could be due to maintaining a green stem for longer.
• Even at a low disease site (Hamilton), there appeared to be some yield benefit from using fungicides to prolong the greenness of the plant leaf and stem. 

• The absence of leaf rust was presumably a function of the dry finish to the season and dry autumn and lack of a "green bridge" (alternative hosts). Scald infection levels were low. Based on the pessimistic seasonal forecast, nitrogen was not applied to the crop and it is likely this retarded the development of scald. 
• Further trials are required to evaluate these fungicides in seasons with higher disease pressure. 

There was no yield benefit from the application of foliar fungicides and no differences in response between Kellalac and Tennant. Seasonal conditions were not conducive to disease and further trials are required. 
 

• Replicated trials at 22 sites were sown in factorial design of two rates of manganese sulphate (0 and 32 kg/ha), drilled with the superphosphate (200 kg/ha) at seeding, and two rates of manganese foliar spray (Mangasol®) at 0 and 10 1/ha) applied at flowering.
• Harvest yields were obtained, and the number of split seeds recorded in the grain sample.
• Manganese significantly (P < 0.05) increased grain yields and reduced the proportion of split seeds in the grain sample at 10 of the 22 sites (see table).
• Manganese significantly (P < 0.05) reduced the proportion of split seeds at 8 non-yield responsive sites, and produced no response at 4 sites (see table). Cultivar effects were not apparent. Concluded that a Mangasol® foliar spray applied at flowering is a more reliable means of controlling manganese deficiency in lupins than is the drilling of manganese at seeding time.
• Wide-spread aerial applications of Mangasol® have been commercially applied in the two seasons since these trials. The method is cost-effective, and in most cases coincides with insecticide application.

• Copper (Cu), zinc (Zn) and molybdenum (Mo) were applied as foliar sprays at 75, 150 and 30 g/ha, respectively, to tillering wheat (5-6 leaf stage) growing on a strongly acid soil (Rutherglen site, pH CaCl2 4.38) limed at three rates (0, 2.5 and 10 t/ha lime).
• The highest lime treatment (pH CaCl2 increased to 7.18) was included to determine if lime induced any micronutrient deficiency.
• Two further sites were established on farmers' properties (Devenish, pH CaCl2 4.36; Goomalibee, pH CaC12 4.72), the same three micronutrients were applied with boron (B, 200 g/ha) to adjacent limed and unlimed areas.
• At the Rutherglen site plants were sampled on three occasions (3 leaf stage, jointing and flowering). The youngest fully emerged leaf (YFEL) was separated for chemical analysis.
• There was no effect of lime or applied Cu to the concentrations in the YFEL's.
• These concentrations considerably exceed the suggested deficiency value of <2 ppm (2). Zn concentrations in YFEL's at flowering were above 20 ppm for all treatments, well in excess of the critical deficiency level (<10 ppm).
• There were no effects on YFEL Zn concentrations from applying Zn or lime.
• The levels of Mo were significantly increased (P<0.01) by lime from 0.3 ppm to 0.6 and 0.8 ppm respectively, for 2.5 and 10 t/ha lime (SED0.059). However, YFEL Mo concentrations were more than adequate for plant needs.
• There was no effect of foliar applied Cu, Zn or Mo on grain yield.
• Lime has consistently increased grain yield at this site. At the Devenish and Goomalibee sites, lime significantly (P<0.01) increased grain yields (36% and 13% respectively) but there were no improvements from the applied foliar nutrients nor any interaction with lime.

At the time of first visit (30th May), plants were at ~3 leaf stage and no foliar disease was evident.  Seedling establishment showed no spatial differences, with average emergence of >100 plants / m2 in all treatments except those with triadimenol seed treatment where >20% reduction in emergence was noted.

Minimal foliar disease was evident at 7th July (~Z31) assessment, minor levels of Stagonospora nodorum (septoria nodorum blotch) (SNB) were evident in the lower canopy but severity was too low for fungicide differences to be assessed.  

Trace levels of powdery mildew (PM) were evident on stems and lowest canopy leaves of untreated plots at booting (27th July) when the second foliar spray was applied. Development of PM was slow and on 15th September (~Z69) average severity in untreated controls was <1% leaf area affected on top 3 leaves, with infection primarily restricted to Flag-2 (Table 1).

PM was also present on heads and stems at low severity at this time, however the distribution of disease, particularly on heads, was patchy across the trial making differentiating between treatments difficult. At this time only the booting foliar spray provided consistent significant reduction in incidence of powdery mildew on stems and leaves.

SNB was present at low levels throughout the season, assessments at head emergence (23rd August) showed a small but significant effect of foliar treatments (Z31 and Z45) and flutriafol and Uniform in-furrow on necrotic leaf area. Assessments 3 weeks later at Z69 indicated that flutriafol in-furrow, triadimenol seed dressing and both foliar spray timings were providing a small reduction (~8-15% leaf area) in necrosis associated with SNB infection (Table 1).

With late and patchy onset of PM, yield responses to fungicides were 0-320kg/ha, with only the flutriafol in-furrow treatment having significantly greater yield than the untreated control, this response is likely due to the reduction of SNB rather than any effect on powdery mildew. Neither foliar spray timing gave significant yield response. Reduced emergence in triadimenol treated plots resulted in a 15% yield reduction (Table 2).

At two other sites (Geraldton, Dalwallinu), where powdery mildew infection commenced during stem elongation, all tested seed dressing and in-furrow fungicides had significant impact on disease severity and incidence. At the one site (Geraldton) where powdery mildew was yield limiting, in-furrow and foliar fungicide treatments gave a significant yield response.

• Fungicide seed treatment or in-furrow did not affect germination or emergence.
• Root disease levels were too low for fungicide responses to be evident.
• Foliar assessments at Z25 & Z30 indicate low levels of necrotrophic disease, both yellow spot (YS) and Stagonospora nodorum (SNB) present with SNB dominant, with no significant impact of at-seeding fungicides on disease expression.
• Foliar fungicide applications at Z31 and Z39 significantly reduced foliar disease severity (YS and SNB) at flag leaf and head emergence.
• Warm dry spring conditions limited fungicide response to late fungicide (Z55) application.
• Yield and quality results were not available.

• Simulated grazing up to early tillering on cereals caused only a minor reduction in grain yield.
• There are broad leaf field crop alternatives, forage peas and vetch, that as a monoculture or as component of a cereal or oilseed mixture can increase total (anthesis) biomass production.
• There are further opportunities to develop farming systems around the multipurpose break crops on upper Eyre Peninsula.

• Forage pea varieties produced similar levels of biomass to other peas and less than vetch at Hart in 2014. They were also more susceptible to blackspot than other pea varieties.
• The value of PBA Hayman as an alternative to vetch will depend largely on being able to sow it early and control blackspot disease infection. This will often be difficult to achieve and sowing dates will need to be as early as possible around safe “black spot manager” predictions.
• Where sowing of field peas was delayed, biomass was maximised by increasing sowing densities above 50 plants/m2 with little negative effect on grain yield.

• Biomass production at Hart in 2013 averaged 4.2 t/ha at the early pod development stage, and 5.0 t/ha at maturity across the trial.
• Kaspa, Morgan and PBA Coogee have generally shown similar biomass levels at flowering in 2013, although Kaspa has shown higher grain yield.
• PBA Hayman produced the highest biomass of all the field pea and vetch varieties at the early pod development stage, particularly when sown early.
• Vetch varieties showed equal or greater biomass to Kaspa, Morgan and PBA Coogee at the early pod development stage, but lower than PBA Hayman.
• Biomass of field pea varieties at flowering was maximised at higher sowing densities (75 and 100 plants/m2 ), however this resulted in yield loss at some sites.

• Molybdenum is required for healthy pasture growth across most of Victoria.
• It is especially important for nitrogen fixing legumes.
• Molybdenum deficient legumes look N deficient.
• Molybdenum should be applied every 5 to 8 years.
• No more molybdenum should be applied than is necessary as excess molybdenum reduces the availability of copper to livestock.
• Stock should be excluded from fields for six weeks after molybdenum application to reduce the risk of copper deficiency in livestock.

• Organic amendments improved ‘soil health’ in terms of free living nematode community structure.
• The Tilled + Organic Matter treatment had a more well balanced soil microbial system than other treatments.
• Numbers of omnivorous and predatory nematodes are quite low in comparison to other cropped soils around Australia, thus room for improvement.
• Soils have improved, as the number of omnivorous nematodes in 2013 significantly increased in organic amended treatments, in comparison to 2011.

The outcome of the project will be an effective strategy for increasing a farm’s environmental value through establishing wildlife ponds that both sustain frog populations and enhance overall biodiversity. This will include an alternative use of farm dam sites and the protection of remnant native vegetation.

Frost events will occur when temperatures at the soil surface are below 0°C. These conditions often occur when a cloudy day is followed by a windless cloud free night. Cereal crops are at the greatest risk of damage when there is a frost during flowering however, damage can be done any time between late stem elongation and late grain fill.

• Yield results of triticale grown on Southern Farming Systems (SFS) sites last season have highlighted a need for continued research into frost and its effects on cereals; triticale in particular.
• Many triticale lines on the Streatham and Hamilton sites in particular were recognized as being moderately to severely effected by frost.
• Analysis of head and grain samples are still undergoing testing and further evaluation before firm results can be made available on individual frost effects on various lines in the research trial. 

• There were no significant differences in lentil grain yield among seeding system or stubble treatments.
• Stripper and conventional stubble treatments resulted in taller and more erect plants with higher pods, improving harvestability

Populations of fumitory are now exhibiting resistance to commonly used broadleaf herbicides, including Clearfield®.

Avoid cultivation which promotes the germination of fumitory.

In this trial, Precept®, Velocity® + MCPA LVE and Affinity Force® + MCPA Amine, were most effective in controlling fumitory. On-duty® and other Group B herbicides were amongst the worst performers.

• Very little Septoria was noticed at any of the locations, with leaf rust being the biggest leaf disease problem at all three sites. 
• For further discussion please see the attached trial report.

• Mace and Scout both yielded higher when fungicide was applied.
• Triad is a cheap fungicide and can be effective, but needs to be used strategically and at rates of at least 2 L/ha.
• Management and attention to monitoring wheat crops must match variety grown to achieve yield potential.
• Regular crop inspections are essential to maximize yield potential • All fungicides work best when used as a preventative spray than as a cure.

• Mace and Scout both yielded higher when fungicide was applied
• Triad is a cheap fungicide and can be effective, but needs to be used strategically and at rates of at least 2 L/ha
• Management and attention to monitoring wheat crops must match variety grown to achieve yield potential
• Regular crop inspections are essential to maximize yield potential
• All fungicides work best when used as a preventative spray than as a cure

When spraying for stripe rust in susceptible crops spraying should take place during the early stages of disease development and generally not before the flag leaf stage of the crop. Spraying when the disease has fully developed and/or waiting until the crop is past the flowering stage is unlikely to be beneficial. See also “Fungicide strategies in wheat and barley” articles in this manual.

Ascochyta blight still has the potential to threaten a chickpea crop, as varieties available to the farmer today are still susceptible to the disease. Without a fungicide plan a chickpea crop is at risk of being devastated by ascochyta. In this trial, chickpeas that had no fungicide applied during the season had significantly lower yield than those treated with some sort of fungicide plan. Those plots treated with three fungicide applications during the year had the highest yield response (1.34t/ha and 1.39t/ha) compared to 1.1t/ha for the unsprayed control.

There was general trend for those treatments that produced the best disease control to produce the highest yields e.g. Tilt Xtra/Amistar Xtra 2 spray programme and 2 spray Opus programme (however there were notable exceptions).

Severe moisture stress was a key feature of both barley fungicide trials this season with the Mallee trial yields ranging from 0.49 – 0.72 t/ha and Wimmera yields from 1.85 – 2.09 t/ha.

For the second year in succession there was no response to foliar fungicides in the Mallee trial on wheat, water stress leading to poor canopy size preventing disease build up and reducing yield potential (yield range 0.68-0.82 t/ha).

Delaying the onset of a stripe rust outbreak can be achieved using fungicide seed dressings or fertiliser treatments. In situations where this is beneficial such as in the Wimmera where conditions may be too wet for fungicide application late in the season, this could be a good strategy.

• To date field trials funded by GRDC project DAS00136 have not been able to show that application of fungicides to seed provide significant reductions in yield loss caused by crown rot.
• Fungicides applied to seed or in-furrow at seeding can provide some suppression of pathogen growth through the plant early in the season (as measured using DNA techniques) but this effect is gone by early grain fill.
• In crop spray applications targeted at the base of plants have shown small yield benefits, but these benefits are not consistent between sites and across seasons.

• H45 proved far more susceptible to stripe rust than Diamondbird in 2004.
• With the dry conditions of 2004, when yields were higher (2-3 t/ha) stripe rust infection significantly decreased yield in H45 by 16%-17%. Grain quality effects were also recorded at the site with the highest level of infection.
• Jockey seed treatment provided some residual control of stripe rust at two out ofthe three sites.
• Foliar fungicides proved very effective at reducing stripe rust infection.
• Only the combination of seed applied + foliar fungicide resulted in a significantlyhigher yield and quality than the nil treatment with H45 wheat.
• Yellow leaf spot had no effect on yield or quality of the susceptible varietyDiamondbird.

Very little differences were found in the experimental trials with and without inter-row compaction in 2015 due to localised seasonal conditions. However, another site at Southern Cross where inter-row compaction was used with barley resulted in grain yields up to 2.5t/ha. There was also an indication from black plastic over inter-rows at Southern Cross, that water harvesting can potentially double wheat grain yields from 0.8 t/ha to 1.6 t/ha. The latter highlights that the benefits of compacted inter-rows could potentially be maximised using a water-harvesting, spray-on polymer on the compacted inter-row.

•  A survey of 80 winter cereal crops across central and northern NSW in 2016 established that low levels (generally <1%) of Fusarium head blight (FHB) were evident with the causal pathogen predominantly being Fusarium pseudograminearum (Fp).
• This was the crown rot fungus (Fp), reminding growers that it does not disappear in a wet season.
• FHB infection caused by Fp has a reduced risk for mycotoxin accumulation in infected grain, but could have detrimental impacts on crop establishment if seed is retained for planting.
• Planting Fusarium-infected grain can also introduce seed-borne crown rot infection into clean paddocks, negating the rotational benefits associated with growing non-host crops.
   

• No impact on crop emergence, head count or yield observed 
• No indication of any benefit from application of fungicide as seed treatment 
• Significant increase in Fusarium colonisation when sorghum sprayed out with glyphosate 
• Increase in Fusarium colonisation following glyphosate spray-out was significantly greater in MR Bazley than MR Buster

Possible strategies are:

• move from breeding to dry sheep enterprise,
• extend rotations and replace grain legumes with productive clover or medic pastures,
• build good working relationships with professional contractors and be prepared to pay them according to their skill,
• develop a positive attitude to employing casual labour or consider having a proficient student or overseas farmers on work experiences, and
• make as much contact as possible with others who have similar goals and aspirations. Exchange ideas, help each other and adopt a really positive approach to part-time farming.

 

• The random survey found that button grass infests approximately 45% of cotton fields.

• The species shows a high level of physical seed dormancy.

• Seedlings of this species can survive a moderate level of water stress.

• Southern populations of this species are sensitive to saline conditions.

• Gibberellic acid is a safe, cheap and convenient way to increase winter fed growth, but it must be applied early in the season (ideally by late autumn/early winter).
• Only apply Gibberellic acid if there is sufficient soil moisture and adequate levels of surface cover.
• Applying early in the season will boost winter growth.
• Applying too late can potentially cause a decrease in spring feed production.
• Don’t graze the paddock within 3 weeks of application.

• Gibberellic acid is a safe, cheap and convenient way to increase winter fed growth, but it must be applied early in the season (ideally by late autumn/early winter).
• Only apply Gibberellic acid if there is sufficient soil moisture and adequate levels of surface cover.
• Applying early in the season will boost winter growth.
• Applying too late can potentially cause a decrease in spring feed production.
• Don’t graze the paddock within 3 weeks of application.

“There are some very good reasons why we should either get into sheep or continue with them as an important enterprise.” Here are some pros and cons to the above statement.

• No-Till is a whole farming system, not just a change of machinery. If farmers only get part of the package right, the potential to succeed with no-till is greatly reduced.
• Paddock selection, stubble management, weed control, nutrition, disease management and seed placement all play a vital role in the success of no-till.
• 2007 has many advantages for the first year no-tillers with low stubble loads, residual nutrition and low disease carryover.
• Ask others who have successfully made the change to no-till what works for them. Don’t try to re-invent the wheel and make the same mistakes all over again.

• Clethodim sprayed with medium droplets provided better control of annual ryegrass (ARG) than very coarse droplets when at the 4 leaf growth stage of the weed
• Clethodim effectively controlled ARG at mid-tiller and late-tiller growth stage, irrespective of nozzle type
• Delaying spraying until ARG is at late-tiller stage may compromise canola yield 

• Sowing winter habit canola early in the autumn can provide grazing and grain yield.
• Garnet sown early can still produce good results.
• In mild weather aphids are a problem longer into the season and possibly sowing a spring variety earlier gives the potential to develop before succumbing to viruses.
   

In 2002 barley breeding and evaluation trials were as susceptible to drought conditions, as was the rest of the farming community. Only 12 of 21 advanced variety trials warranted harvesting, with trials in the Wimmera and north-central districts being the most severely effected – only 4 of 12 trials were harvested from these areas. Average yields of those trials harvested were only 1.4t/ha compared to the long-term average yields of these trials (on a State wide basis) of 3.0t/ha. Taking into account both the average yields of these trials, and the loss of almost 50% of trials, the trials reflect closely to a Victorian season where the crop harvest was only approximately 25% of average.

Four problem sub-clover species Yarloop, Dinninup, Geraldton and Dwalgenup.

Oestrogenic clovers are responsible for a variety of symptoms in sheep including reduced ewe fertility, difficult births, prolapse of the uterus, urethral blockages in wethers and udder development in maiden ewes and wethers.

Paddock assessments have confirmed the widespread presence of oestrogenic clovers in the South East and Kangaroo Island.

Growers are encouraged to assess their own paddocks for the presence of problem species and their potential impact on their flock.

• In 2017 and 2018 a total of 61 paddocks were assessed from 10 properties on Kangaroo Island (KI) and the South East (SE) of SA with 44% having the potential to cause fertility issues in ewes, with visual assessments ranking them moderate to high.
• Whole farm assessments of the two focus demonstration farms have identified that 38% of the paddocks were moderate to high risk on the SE property and 60% of the paddocks were moderate to high risk on the KI property.
• Producers found that identifying all four of the oestrogenic clover cultivars was difficult.
• Undertaking paddock assessments to determine the risk rating of a paddock is time consuming for most producers.
   

• CWFS regional site trials during 2013 and 2014 suggest stubble loads greater than 3 t/ha can limit yield.
• “No till with no stubble is no good” on hard setting red brown soil types. The delimma is that the annual incorporation of stubble just prior to sowing by cultivation or removal by burning would result in the loss of signifigant long term benefits to soil health.
• “If you do not measure it you cannot manage it!” Field measurements of stubble are the starting point for deciding what to do.
• Options to manage stubble loads above 3t/ha need to be made seasonally. Good planning may allow other agronomic and farm efficiency outcomes to be achieved at the same time.

PGR applied to barley in this trial suppressed plant height, generated a yield benefit and improved crop gross margin.

No single variety responded differently to the addition of PGR or fungicide in this trial.

Fungicide extended the green leaf duration of the crop.

• There were few significant differences between the two systems.
• The most important difference was a significant reduction in conception rate of Merino ewes from the Saltbush system. Wool production and body characteristics between the ewe bloodlines were significantly different but were as expected – the contrasting bloodlines had been bred that way.
• If belts of OMSB are incorporated into low rainfall mixed farms and managed in a similar manner to that tested here, it is unlikely that any worthwhile productivity benefits will result.

• There has been no evidence of any soil health or production losses with grazing after seven years, irrespective of whether crop or pasture inputs were increased or kept at district practice levels.
• In 2014 higher input systems showed how increased inputs and costs throughout the season can result in increased productivity and subsequent profitability.

• There has been no measured grain production or soil health decline associated with grazing sheep on pastures and crop stubbles over a 4 year pasture-wheat rotation. Grain yields were higher as a result of increased wheat seed and fertiliser rates in 2013.
• Higher applied crop seed and fertiliser rates with an improved medic pasture increased estimated gross margins by $16/ha/annum over a 6 year wheat-wheat-pasture-wheat-pasture-wheat rotation

• Grazing sheep have not damaged soil health over eight years of several crop/pasture rotations.
• In 2015 total annual biomass was greater in higher input and grazed rotations. High input grazed systems carried twice the stocking rate of a low input system.

• Over nine seasons, incorporating livestock into the rotation improved overall system outcomes in this trial, including; increased nitrogen cycling and water use efficiency, reduction in weed and pest populations and no negative effects on cereal performance or soil health, while value adding to stubble and pastures by grazing.
• The high input grazed farming system had a gross margin of over $100/ha/year more than lower input and ungrazed treatments over the nine-year trial period.

Early dry matter production (forage value) was boosted by earlier sowing.

• Germination of half the species at each trial site was above 33 plants/m2.
• Although most of the speices achieved this good germination many of the plants have now died or are looking very water stressed.
• On visual assessment, both Rhodes species and Signal grass have experienced the highest survival rates and are looking the least water stressed.
• The grasses would benefit greatly from a summer rainfall event.

• Germination of half the species at each trial site was above 33 plants/m2.
• Although most of the speices achieved this good germination many of the plants have now died or are looking very water stressed.
• On visual assessment, both Rhodes species and Signal grass have experienced the highest survival rates and are looking the least water stressed.
• The grasses would benefit greatly from a summer rainfall event.

• Forage cereals offer a more flexible grazing resource than the traditional grain cereals.
• The grain yield penalty as a result of grazing depends on the timing of grazing, the level of grazing pressure and allowing sufficient time for the crop to recover. If these factors are optimised, grain yields will not be affected.

• In 2006 Buntine received 100mm less rainfall than the average rainfall for that area.
• The largest rainfall event for the year was in January and therefore would have greatly benefited the sub-tropical perennial grasses. 

• Pasture cropping is a relatively new system combining livestock and crop production on the one area of land.
• Production of crop and pasture individually can be lower when grown together in a pasture cropping system compared with when either is grown alone, however the overall annual production can be higher.
• Pasture cropping systems can be managed so that annual winter crops have no direct competition from pastures while the crop is growing.
• Pasture cropping can improve year-round resource use increasing overall annual productivity compared with conventional annual cropping or pasture systems.
• Pasture cropping will be most effective in soil types that do not store soil moisture well and have some summer rain.

• Grazing pressure is greatest in winter, with volunteer pasutre providing the majority of the value.
• The stocking rates used on the improved pastures are also relatively high.
• Crop stubbles provide the majority of the grazing value in summer and autumn however they are grazed at very low stocking rates.

 

Cattle are brought onto the property from stations from June to September at an average weight of about 140kg/ha and then leave from mid-October to mid-February at approximately 300kg/ha.

Cattle are brought onto the property from stations from June to September at an average weight of about 140kg/ha and then leave from mid-October to mid-February at approximately 300kg/ha.

Cattle are brought onto the property from stations from June to September at an average weight of about 140kg/ha and then leave from mid-October to mid-February at approximately 300kg/ha.

In summary, the TOS1 showed a greater variance overall between grazing treatments and the frost events of 2016 seemed to have a greater impact on this section of the trial. Results from TOS2 did not vary greatly between treatments and the effects of frost damage were not as prevalent. This indicates that grazing early sown cereals can have a great effect on yields and provide an excellent source of feed to livestock and the grazing of later sown crops in a season like 2016 does not impact yields or quality

• Mean grain yields are presented in the tables in the attached trial report. 
• It is evident that the newer faba bean lines will play an important role as a break crop. For now Fiesta is yielding well (av. of 6.2t/ha over last 3 years at Symmons Plains) and there have been reasonable prices received. In the future the line IxA 56/1 with good resistance to ascochyta is one to watch. The broad bean cultivar Aquadulce has continued to yield well - the greatest problem with this line is the large seed size and associated difficulties in sowing

• It is evident that the newer faba bean lines will play an important role as a break crop. Fiesta has yielded very well in trials (average of 6.3t/ha over last 4 years of trials at Symmons Plains). The broad bean cultivar Aquadulce has also continued to yield well - the greatest problem with this line is the large seed size and associated difficulties in sowing. 
• For further conclusions please see the attached trial report.

• For results and discussion please see the attached trial report.

Soil analysis is being performed on each individual sub-plot to determine the amount of Nitrogen each crop and stubble treatment produced/retained in the soil. The phase is being done in conjunction with the CSIRO laboratories in Canberra.

• Revenue was significantly higher yielding than Einstein which in turn out-yielded Endeavour. Revenue appears to have set a new plateau in wheat yield potential in Tasmania across a range of sowing dates both in grain-only and in dual purpose trials.
• For further take home messages please see the attached trial report.

• A replicated trial was conducted to compare grain yield from four winter wheat varieties: Mackellar, Tennant, Alberic and the soon to be released 95102.1
• Yield ranged from 7.3 to 10.6t/ha. Mackellar and tennant were lowest yielding varieties and also the most prone to lodging, in particular Mackellar. Mackellar being the earliest to flower also suffered the most frost damage.
• Alberic and 95102.1 yielded the hisghest and show the greatest potential for early sowing without grazing. 

• Late sowings could have a negative effect on barley yield due to heat and water stress during grain fill. In 2015 this was the key detrmining factor for grain yield.
• While mid season varieties yielded well in the first sowing time, mid and late sowings favoured early-flowering.
• Early sowing, early flowering crops are at risk of flowering during frost events, and sowing decsisins should be based on the phenology of teh particular variey and understanding the region's climate.

• There was no detectable yield penalty associated with Karnal bunt resistance when new wheat lines were compared with commercial varieties.
• Three of the new wheat lines had yields comparable to MaceA, ScoutA and SuntopA, the highest yielding commercial varieties.
• Half of the new wheat germplasm with resistance to Karnal bunt had grain yields above the experiment’s average.

• The mean site yield for the Inverleigh trial was 6.53t/ha while the Lake Bolac site mean was 6.32t/ha.
• Westminster was the best of the commercial barley varieties at both Inverleigh and Lake Bolac with yields of 7.52t/ha and 7.06t/ha respectively.
• SY Rattler show considerable promise as a domestic malt line, with yields of 7.23t/ha and 7.00t/ha respectively. The malt profile of htis line is aimed at the domestic brewing market.
• Please see attached trial report for further details.

• The average yield for the GrainSearch Inverleigh wheat trial was 5.28t/ha, whilst Dunkeld averaged 5.20t/ha.
• Beaufort and Revenue were the standout performers at the Dunkeld site yielding 7.08 and 6.86t/ha respectively.
• Revenue and Beaufort were the standout performers at the Inverleigh site yielding 6.21 and 6.18t/ha respectively.
• Early sowing at both sites was essential to achive high yields in long season varieties.
• Grain quality was adversely affected at both sites by late season rain, all varieties were of feed due to sprouted grain and low test weights.

The 2005 field trials have shown promising results in terms of an improved delivery system for legume inoculants.

There was no significant differences in yield between the post emergent herbicides used in the trial.

Following two years of grass free medic pasture soil mineral nitrogen levels averaged 158 kg N/ha and all disease inoculum levels were low.

Cutting the medic pasture for hay lowered dry matter production and medic pod set in the following season.

An early light tickle resulted in higher weed germination and lower powdery mildew damage in spring.

Full cut tillage following two years of grass free medic resulted in the highest wheat yields while a discing prior to seeding resulted in the lowest yield.

Working medic residues in the year prior reduced the following wheat yield but grain protein was higher.

Cutting a medic pasture for hay in 2013 reduced medic productivity in 2014 and lowered wheat grain protein in 2015.

• A two year pasture break has been more beneficial in the first cereal year than a one year break, resulting in lower grass weed numbers, higher soil reserves of N and low disease levels.
• The impact of pasture management and pre-seeding tillage on grain yield and quality was greater following a medic pasture in 2015 than in 2016.

• Hay cutting in 2013 resulted in lower medic dry matter in 2017.
• Grass weed numbers were very low in 2017 due to low opening rains and poor germination.
• Two years of wheat increased Rhizoctonia, Yellow leaf spot and Pratylenchus.
• A two year pasture break was beneficial to the following cereal because of lower grass weed numbers, higher soil reserves of N and lower disease levels.

• The ability to capture barley grass seeds at harvest is limited.
• If seed can be captured and placed in windrows, windrow burning can reduce grass weeds.
• Seed capture at harvest is higher with annual ryegrass than with barley grass.
• Burnt narrow windrows sustained temperatures above 400oC for longer than 10 seconds, which is sufficient to sterilise annual ryegrass seed.
• Snail numbers were reduced with windrow burning.
• Barley grass germinates later in Minnipa Agricultural Centre cropped paddocks than in non-cropped areas.

This demonstration showed there may be a large deep ripping effect, given the control gave the largest yield increase.

 

• In a drier season, early-mid maturing Mace wheat provided better feed and grain value than mid-late maturing Trojan.
• Make variety choice based on the stored soil moisture, the potential time of sowing and the seasonal outlook.
• Variety differences exist between Mace and Trojan and their response to grazing.

• Cobra responded very well to a one off graze over a period of 14 days with an application of 10L of CoRoN giving an increase of 350kg/ha. 

Canola provided significant grazing value during the growing season as well as during summer.The varieties tested showed minimal yield penalties from grazing with some varieties showing a positive yield advantage from the grazing operation.Grazing canola crops were able to provide good weed control and will allow the following wheat crop to benefit from this.Grazing canola and cereal crops allows farmers to alter their stocking rate quickly and easily as they progress through the season. This practise will mean in better seasons a much smaller proportion of paddocks will need to be left for stock and more paddocks can be taken through to harvest which will result in a significant increase in farm profitability. In poor seasons there will be less paddocks taken though to harvest which will result in a reduction in grain income, higher sheep grazing losses and lower farm profitability. The overall profitability of grazing cereal crops will depend on the frequency of dry years and good years.Don Nairn finds that grazing cereal crops takes the stress out of running sheep as there is always an option for the farmer when feed runs short (ie he can simply graze another crop). Hopefully this trial gives farmers a better appreciation of where the dollars fall when crops are grazed.

• There was no yield penalty from grazing in 2011. 
• This was probably due to removal of the sheep at closer to the ideal (i.e. Z31) crop stage and possibly the reduced grazing density as well as a favourable finish to the season. 
• This resulted in a profit of $29.89 in 2011 for the grazed treatment compared to -$29.74 for the grazed in 2010.

• Grazing crops can offer the ability to spell pastures, however careful management needs to be practised to ensure there are no grain yield losses. Grain yield losses can very easily result in a negative profit from grazing crops.
• In this case I suggest that the paddock was grazed heavily in the days leading up to removal of the paddock and this resulted in poor recovery of the crop from grazing.  In hindsight I feel that fewer yield losses would have resulted if there was more bulk left leading into stem elongation.
• On the 17th August the Grain & Graze II trial site was visited by the Northern Agri Group (NAG) field day.  During the day we had over 100 growers discuss the pros and cons of grazing crops.  Both Don Nairn and I addressed the field day and had good feedback about the system.

This wheat crop provided significant grazing value, however the paddock was in late in the sowing program which reduced the ability to graze the crop early in the season. This may also have affected how well the crop recovered from grazing due to the delay in maturity of the crop.There was an 11% reduction in yield in this demonstration. Sheep grazed the trial past the Z31 stage which would have meant grain heads would have been vulnerable to the damage from grazing. Smaller yield reductions would have been possible if sheep were removed from the paddock a few days earlier.When the grazing value of the sheep was taken into account there was a $29.74 reduction in profitability from grazing the paddock.Grazing cereal crops allows farmers to alter their stocking rate quickly and easily as they progress through the season. This practise will mean in better seasons a much smaller proportion of paddocks will need to be left for stock and more paddocks can be taken through to harvest which will result in a significant increase in farm profitability. In poor seasons there will be less paddocks taken though to harvest will result in a reduction in grain income, higher sheep grazing losses and lower farm profitability. The overall profitability of grazing cereal crops will depend on the frequency of dry years and good years,Don Nairn finds that grazing cereal crops takes the stress out of running sheep as there is always an option for the farmer when feed runs short (ie he can simply graze another crop). Hopefully this trial gives farmers a better appreciation of where the dollars fall when crops are grazed.

Overall, moderate grazing up to Z25-Z30 and clip grazing at and after Z25-Z30 had little to no significant impacts on yield. However,assessing the value of grazing to the farm system is complicated as grazing can affect time of flowering and frost impacts. It can also increase water use efficiency, allow pasture paddocks to be deferred, reduce the need for supplementation and allow increased stock numbers and/or crop area.

• Moderate grazing up to Z30 and clip grazing after Z30 did not appear to have significant impacts on yield in 2012 when compared to early sown crops.
• However, assessing the value of grazing to the farm systems is complicated as grazing can affect time of flowering and frost impacts. It can also increase water use efficiency, allow pasture paddocks to be deferred, reduce the need for supplementation and allow for increased stock numbers and/or crop area.

These on-farm trials once again demonstrate that it is possible to graze crops in winter and maintain grain yield.  However, the frequency that yield penalties occurred (when grazing crops) increased when compared to the same set of trials in 2011.  Yield penalties (i.e. greater than 5% yield reduction) occurred in seven out of eleven (64%) trials in 2012 compared to two out of seven (29%) trials in 2011.  There are three possible reasons for this increase.  Firstly, growing season rainfall was significantly less in 2012 with most sites receiving only decile 1 or 2 rainfall.  Moisture stress may reduce the ability of crops to recover from grazing.  Secondly, a number of the 2012 trial sites were located in the low rainfall zone where the short seasons are less suited to crop grazing.  And finally, the timing and intensity of grazing may have increased the frequency of yield penalties experienced.  Four out of the eleven crops were grazed later than recommended and seven out of eleven crops were grazed heavily.  It is quite likely these three factors interact, and that a dry year or location exacerbates the negative impacts of late and/or heavy grazing.

The average amount of grazing value provided by crops was significantly less in 2012 compared to 2011 (214 vs 307 DSE grazing days per hectare).  This was mainly due to the late start and the cold and very dry July experienced in 2012.  The amount of grazing value provided by the crop is important when considering the economic implications of crop grazing.  In a year such as 2012, when grain prices were high, a small yield penalty caused by crop grazing can have a large impact on grain income per hectare.  At the current relatively low livestock prices, a lot of grazing value is needed to make up for any grain yield penalty.

• Forage barley variety Moby has vigorous early growth and matures quickly, and should be grazed sufficiently early to enable recovery for a second grazing.
• Spring wheat variety Bolac maintained yield when sown early and grazed in 2014.  
• Winter wheat variety Wedgetail can be sown very early (March-early April) in low rainfall areas to utilise early rainfall, and widen both the sowing and flowering window of crops.

• Forage barley variety Moby has vigorous early growth and matures quickly, and should be grazed sufficiently early to enable recovery for a second grazing.
• Spring wheat variety Bolac maintained yield when sown early and grazed in 2014.  
• Winter wheat variety Wedgetail can be sown very early (March-early April) in low rainfall areas to utilise early rainfall, and widen both the sowing and flowering window of crops.

• Forage barley variety Moby has vigorous early growth and matures quickly, and should be grazed sufficiently early to enable recovery for a second grazing.
• Spring wheat variety Bolac maintained yield when sown early and grazed in 2014.  
• Winter wheat variety Wedgetail can be sown very early (March-early April) in low rainfall areas to utilise early rainfall, and widen both the sowing and flowering window of crops.

• Grazing did not change grain yield in 2015 or 2016. Variety selection was the most important factor for final yield, particularly with the soft finish in 2016.
• Grazing slows crop maturity by one to two weeks, which meant Revenue (long season variety) was still booting during the October heat wave in 2015. In 2016, grazing lengthened the growing season for Bolac (mid-season variety) with a resulting 0.54 t/ha (NS) yield increase.
• To graze without yield loss, it’s important to start planning from the beginning of the season, e.g. early sowing of long season varieties. 

• Grazing treatment had no influence on pasture sward composition when averaged over seasons.
• Grazing, rather than the type of grazing management, increased soil carbon under native pastures.
• Soil under cell-grazed pastures had a significantly greater carbon stock to 0.30 m compared with ungrazed pastures (32.9 t C/ha vs 25.6 t C/ha), however, there was no difference between cell and tactically grazed (29.5 t C/ha) pastures.

• Grazing livestock can compact surface soil and reduce infiltration rates, but their biggest impact on fallow efficiency is through stubble removal.
• Stubble improves summer fallow efficiency primarily by increasing infiltration; it slows but does not stop evaporation, and this is only beneficial where rainfall events occur close together or if it aids crop establishment.
• Despite high rainfall during the 2009-10 fallow period at Condobolin, there was little response in soil water storage to the grazing and stubble treatments.
• Wheat yield in 2010 was reduced by very heavy grazing but not by moderate (more typical) grazing.

The main impacts of climate change by 2030 on grazing livestock enterprises is likely to be shorter  growing seasons, greater variability in pasture growth, reduced pasture quality, less available pasture, reduced wool quality and increased variability in farm gross margins. Possible adaptations to alleviate
some of these impacts are;

• Minimising the need for supplementary feed by reviewing lambing and calving times, age at first joining, stocking rates and sale times,
• Increase flexibility in systems by varying sale times/rules, confinement feeding, movement, more animal trading (core breeding), agistment, matching feed demand to pasture production, and
• Improved pasture utilisation by grazing management.

Winter wheat has to potential to produce high grain and forage returns. Early grazing should be no later than GS30 in order to maximise final grain yield. Early grazing of winter wheat can reduce final stubble volumes and increase harvest index. Ideally for best forage production, winter wheat should be planted in March if possible.