• The optimum time to sow faba beans at Wagga Wagga in 2015 was mid-late April.
• PBA Nasma, PBA Samira, PBA Zahra, Farah and Fiesta VF were the highest yielding commercial varieties.
• Time of sowing had a far greater effect on growth, development and grain yield, of faba bean than variety in this experiment.
• PBA Nasma prduced a small grain size of 53g/100 seeds, which could have negative marketing implications. Further testing is required to determine if this was a seasonal effect.

• Winter and early spring seasonal conditions favoured faba bean production in 2009, and yields were more than double those in 2008.
• Yield was generally maximised at the early sowing date and at the narrow row spacing.
• Farah was the highest or equal highest yielding variety at both sowing dates in 2009.
• The taller varieties Farah and 974* showed the largest reduction in yield when row spacing
  was doubled from 9” to 18”.
• Chocolate spot levels were high in 2009, and accounted for 32% yield loss across varieties
  in untreated plots. Agronomic techniques that delayed canopy closure (ie later sowing, lower
  plant densities and wider row spacings) were important in reducing disease severity.
• Nura had higher disease levels and lower grain yield than Fiesta across all treatments in
  2009, but a triple chocolate spot spray strategy was effective in reducing yield loss by 25%
  in both varieties.
• Decreasing plant density was the most significant factor influencing disease levels after
  delayed sowing, and resulted in lower disease levels across all varieties, and increasing row
  spacing reduced disease infection in early sown Fiord only.
• Increasing row spacing reduced chocolate spot infection, but only in the susceptible variety
  Fiord when sown early.

• New varieties are likely to offer significant yield improvement in southern Victoria, along with improvements in disease resistance.
• Residual herbicide caused issues in 2013, most likely due to the dry summer of 2012/13.
• Similar to 2012, AF05095 was the highest yielding variety at 3.95 t/ha, 37% higher than Farah.
• Based on yields achieved (3.9 t/ha) beans could have achieved a gross profit of approximately $1300/ha based on management costs of $250/ha and grain price at $400/t.
   

• Grain yields of beans were lower in 2012 in than previous seasons, averaging 3.6t/ha at Bool Lagoon.
• All varieties showed higher yields sown early.
• Later maturing varieties PBA Rana and PBA Kareema performed similarly to other varieties in this trial in 2012, despite the low season rainfall.
• The three earlier maturing varieties (Farah, Fiord and Nura) showed increased yield from increasing plant density, while no yield response was seen in later maturing and larger seeded varieties (PBA Rana and PBA Kareema).
• Fiord showed the most response from varying plant density across the three seasons of trials.
• Crop-topping trials showed a 9% yield loss across all varieties from crop-topping at the milky dough stage of ryegrass in 2012 and caution is required with this practice in later maturing regions. No yield loss was generated from later treatments.

• Plant densities greater than 25 pl/m2 produced the highest grain yields in 2018.
• PBA Samira and PBA Zahra performed equally well, with average grain yield of 3.2 t/ha and 3.1 t/ha, respectively.
• 2018 was a low disease year and there was no disease penalty from higher sowing rates. Yield benefits from higher plant densities should be weighed against higher disease risks in wetter years. 

Fiesta VF is a reliable faba bean variety suitable for most areas of Victoria. Fiord, Barkool and Ascot are also good varieties for short season environments of Victoria. Ascot produces high quality grain but yields less than Fiesta VF. The later flowering variety Manafest, which is moderately resistant to chocolate spot but is susceptible to ascochyta blight, yields best in the high rainfall areas of south west Victoria.

Fiesta VF is a reliable faba bean variety suitable for most areas of Victoria. Fiord, Barkool and Ascot are also good varieties for short season environments of Victoria. Ascot produces high quality grain but yields less than Fiesta VF. The later flowering variety Manafest, which is moderately resistant to chocolate spot but is susceptible to ascochyta blight, yields best in the high rainfall areas of south west Victoria.

The faba bean evaluation in the Southern Mallee in 1999 included comemrcial varieties, experimental lines with dual resistance to Ascochyta and chocolate spot.

• The early maturing varieties Fiord, FiestaVF, Barkool and Deep Purple were the highest yielding varieties in 2000. Fiord, FiestaVF and Barkool are the best adapted varieties for low rainfall and short season environments of Victoria and have grain suitable for human consumption.
• FiestaVF has superior grain quality compared to the other varieties and attracts a premium (approximately $40 over Fiord in 2000).

• Fiesta VF is a reliable faba bean variety suitable for most areas of Victoria. Fiord, Barkool and Ascot are also good varieties for short season environments of Victoria. Ascot produces high quality grain but yields less than Fiesta VF.
• The later flowering variety Manafest, which is moderately resistant to chocolate spot but is susceptible to ascochyta blight, yields best in the high rainfall areas of southwest Victoria.

• PBA Samira and PBA Zahra have consistently been among the highest yielding commercial entries at teh Westmere site in 2015-17, out-yielding older faba bean varieties.
• There is a continued improvement in yield of faba bean linies with teh top breeding lines out-yielding current varieties at the Westmere site in 2015-17
• Seed wt was lower in 2017 than 2016 and this is most likely due to lower rainfall during the seed development phase in 2017.

• Very high yields achieved in faba bean breeding trial in South Western Victoria in 2016
• New PBA faba bean varieties have higher yields than older varieties
• A high level of fungal disease developed in 2016 and a proactive fungicide program is required to manage faba beans in high rainfall districts 

• Despite a dry season, yields for many of the varieties was extremely good, with Aquadulce and Fiesta VF both performing well. Manafest did not perform well in this trial, although in the intermediate trial at the same site, it yielded much better and was not significantly different in yield to Aquadulce. 
• Dry conditions at sowing limited the effectiveness of the post sowing pre-emergent herbicide sprays used. This is a major constraint with growing beans as there are no broadleaf herbicides registered for use post emergent in beans. Beans are best grown as a third or fourth crop in the rotation, after broadleaf weeds have been controlled in previous years. 

• The highest yielding faba bean variety was Manafest yielding 4.4 t/ha, followed by Farah with 4.14 t/ha. Fiesta VF and Nura yielded about 4.00 t/ha and were not significantlly different from Fiesta VF.
• For further take home messages please see the attached trial report.

• The faba bean varieties produced high yields (>4 t/ha) indicating their potential as a crop in the Western Districts.
• The three major faba bean varieties, Farah, Fiesta VF and Nura, produced comparable yields in both 2009 and 2010 while there was also little difference between the varieties for chocolate spot. Farah and Nura are both MR-R to Mscochyta blight whereas Fiesta VF is MS-MR, so Farah and Nura would be the preferred varieties for the district.
• The broad bean varieties Aquadulce and PBA Kareem yielded significantly less than the faba bean varieties in both years. Broad beans are very late to fill pods and mature, compared to faba beans, and require a long and cool pod filling period to achieve maximum yields.
• A significant level of chocolate spot developed in both seasons and is likely to have affected yields. Chocolate spot is favoured by a high humidity during the flowering and pod filling period and a preventative fungicide should be applied at the commencement of flowering with follow-up applications dependent on disease development and weather conditions.

Samira continues to be the best released variety.

• Inoculating faba beans prior to sowing improved nodulation on acid soil.
• New acid tolerant rhizobia (strain SRDI-969) increased nodulation but not grain yield, which was limited by low rainfall.
• The SRDI-969 is a promising strain, which is under evaluation as a future replacement for the current commercially available strain (WSM-1455).

Incorporating canola as a companion plant did not increase grain yield at all sites in 2019. Plant growth regulator used to manipulate canopy structure increased grain yield. Further work is required to understand the effects on plant density, row arrangements, and companion species on canopy structure and grain yield production.

These results are only preliminary and should not be used on their own. The effects of the different fungicides will require greater investigation before significant interpretation can be made.

• In a season with very little disease pressure, small varietal differences in chocolate spot did occur throughout the season, but these differences did not manifest into yield differences. Seed rate was critical to maximise yield in 2020, where lower seeds rates produced significantly lower yields when compared to higher seed rates. Seed rates also had a major effect on crop architecture, with lower seed rate treatments podding over a longer portion of the stem and having a higher pod number but lower overall dry matter harvest than that of higher seed rates.

 

• In 2020 grin yields were high (3.36 and 2.96 t/ha) considering the dry finish to the season. As with the sowing rate trial, varieties that were slower to mature and held a green canopy for longer and could not convert the green leaf area into yield due to the very dry spring conditions Variety selection is the key to minimise diseases. However, in low disease pressure situations, less disease doesn’t mean higher yields.

PBA Samira, PBA Zahra, and PBA Amberley, varieties with improved resistance to chocolate spot had less symptoms and better grain yields than PBA Marne and PBA Bendoc. At Tarrington, where there was very high disease pressure, the new chemistry fungicide strategy increased grain yield by 33% (to 4 t/ha) compared to the control where fungicides were not applied (3 t/ha).

• Despite very low disease pressure in 2018, there was a significant and profitable grain yield increase of between 40 and 55% with the use of fungicide strategies. 

• Disease was not an issue in 2018 due to very dry seasonal conditions. There was no difference in grain yield between the disease management strategies, and the varieties and breeding lines.  

Despite some early infection, disease was not a significant issue in 2019 due to dry spring conditions. There was no difference in the grain yield response of varieties to disease management strategy. At the higher rainfall zone site, Gymbowen, a complete fungicide spray treatment (7 applications) increased grain yield by 5-8% compared with other strategies, which was not profitable. An early flowering line, AF12025, was the highest yielding line, similar to Curyo and consistent with previous observations.

Although disease pressure was low, the resistant variety, PBA Amberley had significantly lower occurrence of chocolate spot disease than the other two varieties confirming improved resistance in this variety. The lower rainfall in spring was not conducive to chocolate spot and no infections were seen until late November when plants were near maturity. Further research is required to clarify the fungicide treatments required to control chocolate spot in PBA Amberley, especially in seasons more conducive to the disease.

• AF11023 and AF12025 had significantly higher grain yield than other breeding lines, and equivalent grain yield to varieties such as PBA Samira, PBA Farah, PBA Marne and PBA Bendoc.
• This highlights the potential for reliable and profitable faba bean production in low rainfall environments.
• In addition to the rotational benefit of faba bean to the farming system, the high yielding varieties and breeding lines had an estimated net return of $24-89/ha.
• However, it is worth noting that the price of faba bean at harvest was exceptionally high in 2018/19, reaching more than $1100/t. 

Similar, to previous seasons and consistent with other sites in 2019, the early flowering and maturing breeding line, AF12025, produced the highest grain yields (17% - 53%) higher than all other varieties. Faba beans had the highest net return ($1410-2310/ha) of all pulse crops in 2019 at Curyo, ranging from $1410-2310/ha.

PBA Bendoc, PBA Amberley and PBA Samira showed similar relative tolerance to GpC in terms of crop damage, but slightly higher biomass reduction in PBA Bendoc, could indicate greater sensitivity. PBA Bendoc showed excellent tolerance to ‘imazamox & imazapyr’, even with GpC applied PSPE. Results also highlighted the base level tolerance that many conventional faba bean varieties have against imidazolinone products with PBA Amberley and PBA Samira showing almost no damage with the PSPE application of ‘imazamox & imazapyr’.

•  Group B herbicide application timing significantly influenced herbicide damage of faba bean varieties. Herbicide damage scores generally increased with delaying herbicide application timing from PSPE to 4 node, 8 node and flowering stages. Although the level of damage in PBA Bendoc was significantly less than PBA Samira, both varieties showed the highest sensitivity to in-crop application of sulfonylurea herbicides (see Table 1 in attached trial report summary). Grain yield results are not presented due to soil variability and poor root nodulation caused by soil acidity. 

• Group B herbicide application timing significantly influenced herbicide damage, biomass and grain yield loss of faba bean varieties. Herbicide damage and subsequent yield losses were more severe in the conventional variety PBA Samira than in the group B tolerant variety PBA Bendoc, and generally increased with delaying herbicide application timing from PSPE to 4 node, 8 node and flowering stages. PBA Samira incurred significant yield loss from all the herbicide treatments except PSPE and in crop application of ‘Imi2’, and application of ‘Imi1’ up to 8 node stages. In contrast, PBA Bendoc showed improved tolerance and did not have significant yield loss from the herbicide treatments except in-crop application of ‘SU1’ and ‘SU2’ at 8 node and flowering stages. The results should be treated with caution due to the confounding effect of dry seasonal conditions and repeated frost events. 
   

PBA Amberley and PBA Bendoc showed little to no signs of herbicide damage at x0.25 and x0.5. At higher rates PBA Bendoc showed lower herbicide damage and higher grain yields than PBA Amberely.

High levels of crop safety were observed in the imidazolinone tolerant faba bean variety at both Mundulla and Yeelanna sites in 2019.

New acid-tolerant rhizobia strains can increase nodulation of faba beans on acid soil. However, sustained ability of faba beans to fix atmospheric nitrogen strongly depends on appropriate lime programs. Inoculating faba beans with peat inoculants significantly increased nodulation compared to the controls that were not inoculated.

The irrigated spring-sown faba beans produced higher yields with an average of 6.9 t/ha across the treatments (Table 3). High variability in the trial suggests these numbers may be exaggerated, but header data from the surrounding paddock indicate that up to 6 t/ha grain yields were achieved by the grower in some parts of the paddock.

Applying inoculant at sowing has proven to be beneficial to early season crop vigour in faba bean production. Adequate phosphorus fertiliser increased early season crop vigour, biomass and grain yields. Applying 75 kg/ha MAP to faba bean at sowing doubled biomass production compared to faba bean being sown with no fertiliser, at Strawberry Hill in 2019.

There was no grain yield response to application of lime, macro and micro-nutrients, indicating that none of the applied nutrients were yield limiting at the site. Grain yield ranged between 4.52 and 4.89 t/ha.

• Grain yields were low and variable in 2018 due to low soil pH at the site, and waterlogging that occurred during winter. The removal of molybdenum from the fertiliser significantly reduced plant vigor and grain yield. However, due to the high soil variability results should be treated with caution. 
   

• There was no grain yield response to the phosphorus fertilizer rates. These results may be due to very dry growing season conditions, which might have reduced movement and uptake of the applied nutrient by the crop. Hence, results should be interpreted with caution. Biomass yield however showed a significant increase from application of 20 kg/ha and higher rates of P2O5. 

Potassium applied to faba bean at sowing and/or at flowering had no effect on plant height, biomass or grain yield.

Tebuconazole foliar fungicide is the superior treatment for controlling this disease, showing that Systiva® seed treatment or Uniform® in furrow were not effective fungicide treatments for control of cercospora leaf spot. 182 Infection from cercospora leaf spot was high early in the season at eight node stage where Uniform mildly suppressed severity compared to the nil treatment. However, by spring the standard tebuconazole treatment at six node growth stage prevented further spread of the disease.

The grain yield of faba beans significantly increased at higher plant densities especially when the when the diseases were controlled. Despite a late autumn break, with adequate chemical disease control, PBA Samira grain yields more than tripled (from 1.5 t/ha to 5.4 t/ha) when plant densities increased from 5 plants/m2 to 45 plants/m2 at Tarrington in 2019.

In 2019 at Lake Bolac, faba bean grain yield was reduced by 15% when the crop emerged on June 12 compared to May 23. PBA Zahra and PBA Nasma had larger seed sizes than PBA Samira and PBA Marne.

AF12025 and PBA Nasma, which are varieties with shorter season length outperformed varieties with longer season lengths (PBA Samira and PBA Bendoc) when sown in spring.

• The optimum time to sowing faba bean at Junee in 2015 was mid-April.
• PBA Zahra, PBA Samira and PBA Nasma are the highest yielding varieties.
• Commercial yields of 3 t/ha are achievable with appropriate varieties and management.

• The optimum time to sowing faba bean at Wagga Wagga 2015 was mid-late April.
• PBA Nasma, PBA Samira, PBA Zahra, Farah and Fiesta VF were the highest yielding commercial varieties.
• Choice of sowing time had far greater consequences on growth, development and grain yield of faba bean than choice of variety in this experiment.
• PBA Nasma produced a small grain size of 53 gm/100 seeds which may have negative marketing implications

The practice of windrowing beans has become increasingly popular in the past two seasons for harvest management and perceived grain quality benefits. These benefits were not realised in this trial.

• Faba bean and its specific Group F rhizobia are sensitive to pHCa below about 5.0
• Faba bean rooting depth is limited by acid layers in the soil profile
• Unincorporated, surface-applied lime increases pH of the soil surface, but has limited effect on subsurface pH in the short to medium term
• Lime incorporation to 10cm is necessary to rapidly increase subsurface pH
• Check for pH stratification before using Group B SU herbicides – elevated surface pH slows the breakdown of herbicide residue and may extend re-cropping intervals for legume species on acid soils to 22 months – check herbicide labels

• Soil amelioration, particularly liming with incorporation to depth, increases break crop options.
• Faba beans can be successfully grown on light soil types if pH is managed.
• Subsequent nitrogen fertiliser programs should take account of residual N to optimise the benefits of pulse crops.

Group B herbicide application timing significantly influenced plant height, biomass and grain yield of faba bean varieties. The level of herbicide damage and subsequent yield losses from the herbicide treatments were generally more severe in PBA Samira than PBA Bendoc, and when applied incrop than PSPE. PBA Samira incurred significant yield loss from all the herbicide treatments except SU1 applied at PSPE and Imi2 applied at PSPE and flowering. In contrast, PBA Bendoc showed improved tolerance and did not have significant yield loss from most herbicide treatments except in-crop application of SU2 and SU1.

Samira , although not statistically significant, was the highest yielding released variety.

• The Making Better Fertiliser Decisions for Cropping Systems in Australia (BFDC) database allows us to search for soil test calibrations for four macronutrients across a range of crops, soils types, regions and time spans.
• As an example, the critical range for soil test P (Colwell) for wheat grown in red chromosols in NSW has increased under minimum-tillage management.

Cu greatly increased yield fro 560 kg/ha to 1570 kg/ha.  Grain yield and analyses of tops of wheat showed large granules greatly reduced the effectiveness of Cu incorporated into them, the effect being more marked at the lower granule number provided by the 100 kg/ha super mix compared with the 200 kg/ha. Doubling the rate of Cu applied by doubling the Cu concentration in the granule had little effect on Cu uptake and failed to ovecome the restrictivew effect of large granules. It is the number of granules in the root zone of the wheat plants that is critical for adequate uptake of Cu and that large granulated "wet mixed" Cu superphosphate mixtures are unsatisfactory Cu fertilisers.

In general oxide source was equal to or superior to the sulfate source in wet mixes. In dry mixes in the same trial Cu oxide was only 66 % as effective as the sulfate.

Shallow placement was miuch less effective than placing Cu fertiliser at 5 cm or more. Cu foliar at 0.54 kg cu/ha applied at 6 weeks after seeding gave highest yield.

It was concluded that application methods that reduce the number of CXu particles available for root copntact greatly reduce the effectuiveness of Cu fertiliser.

 

Cu greatly increased yield fro 560 kg/ha to 1570 kg/ha.  Copper was applied as copper sulfate at 6.6 kg/ha.

Highlights of the results are:

(a) preseeding cultivations after drilling the Cu in 1979 markedly increased Cu uptake;

(b) medium sized Cu-OSP was inferior ti fine granule size

(c) the effects of granule size & 1979 pre-seeding cultivations were not reflected in 1980 Cu uptakes.  The effectiveness of the treatments which were relatively ineffective in 1980 as those treatments which were most effective in 1979

(d) Cu drilled with the seed in 1980 was much less effective than all Cu treatments applied the previous year

(e) although all grades of Cu-OSP drilled with the seed in 1980 were relatively ineffective compared with that applied the previous year, the inclusion of 15% fine material with 85% medium material increased Cu uptake from the fertiliser by 40%, 50% fine material increased Cu uptake from fertiliser by 80%.

GRanules > 3 mm are much less effective than medium sized granules.

REsearch suggests that 1 kg/ha copper sulfate at early boot is required for the first crop where Cu fertiliser is applied at recommended rates.

 

• A soil and sediment survey of 10 irrigated cotton paddocks across four cotton-growing valleys revealed the tail drain sediments were enriched in organic carbon (1.03% ± 0.05) and nitrogen (0.11% ± 0.01) compared with head ditch soils (0.73% ± 0.07 for carbon and 0.08% ± 0.01 for nitrogen) of the same paddocks. Nitrate-nitrogen and dissolved organic carbon analyses showed similar trends.
• After irrigation, tail drain samples tended to release more nitrous oxide compared with head ditch samples. Emission rates were linked to the pre-irrigation mineral nitrogen concentrations of the soil/sediments.
• These non-cropped areas, representing up to 2% of the paddock area, are a significant source of nitrous oxide emission per unit area of farm as they retain high soil moisture and nutrient concentrations in the absence of plants.
• Nitrous oxide emission calculations for cotton farming systems should incorporate the emissions from head ditch and tail drain sections of the irrigation network.
   

• Benchmarking financial performance is an important way to improve a farm business. The FAST project has benchmarked over several years about 240 farms in total. They have come up with 11 indicators that can be used to assess performance. The indicators deal with business health or financial performance, income drivers and resource use.

The 1995 cropping season was the final season that will be monitored by the FAST Project, and ironically it was also the best. 1995 provided a combination of good yields and prices, returning good gross margins to farmers, as well as adding another full year of excellent data to the large database that has been collected over the last four cropping seasons.

2012 was a set up year for the Rhizoctonia best bets demonstrations. Fungicides banded with fluid fertilisers at seeding did not reduce Rhizoctonia in the following cereal crop.

In 2013 the Rhizoctonia best bets demonstrations using rotations were over sown with cereal and showed break crops which are grass free are the best option to lower Rhizoctonia inoculum levels.

• In the southern Victorian Mallee environment, grazing crops intended for grain production can be risky, with potential penalties to grain yield and/or quality.
• The success of grazing crops relies on an early sowing opportunity and good spring.

• This work summarises the experiences of seven farmers grazing winter cereals across four different types of enterprise.
• The economic benefits were positive in all cases and ranged from $10.80/ha to $84.06/ha. When comparative grain yields were also included, this range became $21.56/ha to $430.80/ha.
• For further findings please see the attached trial report.

The four farmer demonstrations showed

• By sowing a cereal into established lucerne, total winter production can be increased although lucerne production will be decreased.
• Variety and cultivar selection is important to match growth to animal demand.

o Spring wheat, oats or barley suit early production.
o Winter wheat suits extended production.
o Barley can be used for grain production.

• Different types of sowing machinery can be used successfully.
• Live weight gains in excess of 200grms/day/hd can be achieved at a period when pasture is usually in short supply
• A viable grain yield can be achieved under good seasonal conditions by using barley.

In the 2014 season there were no significant yield advantages recorded at five sites across upper Eyre Peninsula when using the fungicide products over the nil treatments. This was in a season with an early start and minimal stress during crop establishment, and at sites with high Rhizoctonia inoculum levels. The broad acre farmer demonstrations in the 2014 season showed no visual differences or early plant growth measured at the given sites during the cropping season. There were differences in the level of crown root infection at Cleve, where the nil treatment had a higher number of crown roots infected and a greater % of crown root infection than the fungicide treatments. There were differences between treatments recorded in the mid-May sown barley crop at Piednippie in Rhizoctonia patch score and the seminal root score. Differences in protein, screenings and test weights were recorded between treatments at several sites with a general trend of lower yields having higher protein, higher screenings and lower test weights. Further evaluation of research trials and farmer demonstrations using new fluid products and fungicide placement, will occur over two more seasons to evaluate the economics of using fungicides in low rainfall farming systems.

Six different farmer operated seeders were used in a minimum tillage situation to compare seeder set up and the effect of trifluralin incorporated by sowing on crop emergence. The demonstrations were taken through to harvest to compare yield.

This demonstration showed that there was little difference in yield between Premium seed and farm-retained seed.

Average trial yield was 3.8 t/ha, close to the potential as identified by Yield Prophet during the season. No significant differences in yield were found between stubble treatments (stubble retained, worked or removed) and nutrient treatments (normal practice, normal practice plus additional nutrients to enhance stubble breakdown). Changes in Soil Organic Matter fractions over the duration of the trial (2012 to 2014) resulting from the stubble and nutrient treatments will be assessed in March, 2015.

No difference in yield or quality was noted for the stubble or nutrient treatments. It is likely that soil carbon is being increased as the additional nutrients did not increase yield. Increasing soil carbon is a slow process and several years are needed to see whether these treatments do increase soil carbon. A range of sites across southern Australia have been chosen to see if soil carbon can be increased.

The extra nutrition treatment had no effect on yield or grain quality this season. In the 2012 season the stubble removed treatment had the highest yield.

Average trial yield was 2.8 t/ha, approximately 1 t/ha below the nitrogen unlimited potential as identified by Yield Prophet® during the season. No significant differences in yield were found between stubble treatments (stubble retained, worked or removed) and nutrient treatments (normal practice, normal practice plus additional nutrients to enhance stubble breakdown). After three years of trial work, no significant differences in soil carbon were found between the stubble and nutrient treatments.

The farming systems trial is in its first yera of operation and has collected base line information so that the effects of each farming system on soil characteristics, weed composition and disease burden  an be assessed as the trial progresses.

The systems trial has not been operating for a sufficient period of time for the full effect of different management on pasture production to be defined.

2001 was the second year of complete monitoring and recording at the BCG's farming systems site.

The very dry conditions of 2002 produced little green pasture for sheep, with a maximum for the year of 160 kg/ha green feed-on-offer available in July. Stocking rates ranged from 2 to 5.4 dry stock equivalents per effective grazing ha. The stocking rates in the Reduced Till and Fuel Burner systems were higher than for 2001. Supplementary feeding from April, with ewes placed in a stock containment area in October supported sheep in the Hungry Sheep system.

2002 was the third year of monitoring and recording at the BCG’s Farming Systems site. The Systems trial site was severely affected by the drought, which limited monitoring and results for this year.

The drought of 2002 continued to impact on sheep production in early 2003 through a lack of bulk in crop stubbles and a high erosion risk if these stubbles were grazed. Breeding ewes were retained in the Hungry Sheep system using containment areas to avoid erosion problems and to maintain ewes. No other system contained significant sheep numbers during 2003. July-dropped crossbred lambs grazed on medic pasture and reached a weight of 45kg in mid-December. The ewes received no supplementary feeding from July, at a stocking rate of 3.7 ewes/ha. This was largely due to early germination of medic pasture in February, and sufficient follow-up rain to keep some plants alive, producing adequate pasture in late autumn/winter. Regenerating pastures were more productive than pastures sown at the autumn break.

The BCG long-term Farming Systems project was established in 1999. Four different farming systems are being compared; Zero Till, Reduced Till, Fuel Burners and Hungry Sheep, with the aim of the project to identify physical production, economic performance and sustainability indicators for each of the farming systems.

• Reliance on chemicals as the only weed control option is difficult (almost impossible) in a run of dry years.
• This trial will cease at the end of 2004 (3 years too early to obtain meaningful results) unless other funding is found.
• The trial showed, in the 2003 season, that there was no yield penalty for waiting until rain for sowing, although grain protein was lower in these crops.

Of the seven frost events that showed significant differences, all showed that the reduced stubble treatment (2t/ha) reached colder minimum temperatures than the removed stubble treatment (1.6t/ha). Across the seven events, the retained stubble treatment (2.5t/ha) also remained warmer than the reduced stubble treatment. The removed stubble treatment spent significantly less time at -2⁰C temperature threshold compared to the reduced stubble treatment. The retained stubble treatment was not significantly different to either of these.

These results suggest that removing stubble decreases the severity and duration of frost, however as discussed, there was variability in the results between the retained and reduced stubble treatments. This suggests, that in seasons where frost events are so severe, stubble management does not have a large effect on the severity of events.

The interim temperature results suggest that retaining 4t/ha of stubble significantly increases the severity and duration of frosts when compared to 0t/ha. On all occasions, reducing stubble loads to 0t/ha reduced the severity and duration.

The BCG long-term Farming Systems project was established in 1999. The project aim is to compare the physical production, economic performance and sustainability of four different farming systems : Zero Till, Reduced Till, Fuel Burners and Hungry Sheep.
2004 was another tough year at the trial site with a late break and well below average rainfall (GSR 155mm; decile 1.2 season).

• Crop yields in 2006 were driven by fallow (no difference between mechanical/conventional).
• Early sowing set an upper limit to yield but did not compensate for not being sown on fallow.
• Crop emergence was very sensitive to sowing conditions, with later sowing and sowing into 2005 cereal crop stubbles leading to much later crop emergence.
• The difference in soil available water driving the fallow response was difficult to measure with soil sampling on these soils; soil available nitrogen was a better predictor of yield in 2006.
• There were no yield penalties to adopting no-till in the Hungry Sheep and Fuel Burner systems.
• Cultivation in No Till and Reduced Till paddocks produced inconsistent effects on yield.

• There is no clear difference between till and no-till crop establishment systems for yield at the Farming Systems Trial.
• Low protein in some plots indicated nitrogen deficiency in 2009.
• Pre-sowing deep soil nitrogen tests indicated low protein but not always at the levels expected.

• Long chemical fallow plots achieved record yields in 2010.
• Rotation was a factor in higher 2010 yields, but the cause of differences is not clear.
• Pre-sowing soil nitrate was not a good predictor of crop yield potential in 2010.

• It is possible that a one off cultivation in no-till systems could increase crop yields in successive years..
• Standard and Fuel Burners outyielded No Till, followed by Reduced Till, followed by Hungry
  Sheep

• Lower grain and higher meat prices in 2009 will see systems with fallow (chemical and/or mechanical) and livestock being more profitable, unless wetter (decile 4+) growing seasons are experienced
• Farmers considering changing systems need to consider possible time delays and resource issues, particularly with re-introduction of fallow and livestock
• For some farmers, changes within systems could be just as powerful as changing between systems. Assistance may be required to figure out what to change
• The machinery inventory approach has shown less difference between systems than would be suggested by contract pricing. At some point, all systems required similar capacity in many machines.

• Different farming systems can have similar timeliness requirements during critical periods and are likely to need similar capacity machinery
• There are substantial differences in annual hours and hectares accumulated for different machines in different systems
• These are likely to lead to big differences in the costs associated with machinery in different systems.

• A survey was conducted in early 2010 to determine the current management practices of farmers and the average water use efficiency of farms on upper Eyre Peninsula.
• The survey will be repeated in 2013 to see if there are changes in the management practices and water use efficiency.

The Farming Systems trial has expressed some significant differences in soil health between each of the systems from 2000 to 2012. If these are not managed in the long-term, the sustainability of the affected systems may be reduced. The Fuel Burner System had significantly lower organic carbon in the soil compared with the other farming systems, reflective of the regular cultivation.

• Using crop growth models to quantify the season to season yield performance on different soil types and predict in-season potential yield can be a very useful tool for managing risk and inputs.
• Given the high spatial variability in soils and grain yield, mapping paddocks into zones of similar soil and yield potential enables farmers to better target input levels as well as understand crop yield potential in different seasons.
• Information about the capacity of a soil to hold water, the water and mineral N levels at sowing are the basic information needed to use Yield Prophet - given this information, grain yield can be accurately predicted.

The humus portion of soil carbon has relatively constant ratio of N, P and S. This has been established as 80N, 20P and 14S per tonne of humus carbon.

Overall, the trial was successful in demonstrating to the students the effects of varying urea rates on plant growth throughout the season.

This study of Victorian wheat crops shows that:

• increasing the uptake of nitrogen by 50kg N/ha improves WUE by 3.4kg/mm,
• introducing a break crop increases WUE by 2.1-4.2kg/mm,
• the efficiency with which fertiliser nitrogen is taken up by wheat increases from 40 to 80% as GSR increases from 200 to 400mm,
• each 1% of OC contributes from 16kg N/ha (200mm GSR to 32kg N/ha (400mm GSR) to the uptake of nitrogen,
• at current prices for fertiliser N ($1kg/N) and for wheat ($170/t) is is still more economic to apply fertiliser N than to increase N supply by raising OC levels with pasture,
• grain protein levels tend to fall by 1% for each 100kg/ha increase in yields.

Sustainable and productive farming practices will require that water be used where it falls and this entails that water be used by plants and not access the water table through either surface run-off or permeating below the root zone.

• Summer-active perennial grasses such as commercial Panic varieties have persisted, provided year-round groundcover and produced good quantities of pasture over several years in two field trials in the Mallee; growth rates and grazing potential are highest and most reliable in November and April.
• The high level of winter dormancy can allow for opportunistic establishment of inter-row winter species (e.g. pasture cropping). In 2012, with low growing season rainfall, pasture-cropped wheat production was penalised; evaluation is ongoing.

It’s been, once again, a frustrating season. A dry spring, then a late rain to spoil the rainfall records - and too late to be of benefit. The role of livestock in the system to diversify income has, once again, been demonstrated. It is worth looking after the stock you have because they can be a huge benefit in years like this. Many people are reaping crops with very high screening levels due to the harsh finish. What is the value of these screenings for livestock?

Feeding stock for survival during a drought is certain to be a financial loss. Feeding might not be the best strategy. However, if feeding is used, it needs to be planned and concentrate on increasing production.

Ryegrass and barley grass were the dominant weed species along fence-lines.