To demonstrate the use of soil mapping and soil moisture sensors as data sources for variable rate irrigation and fertigation decisions, with the ultimate aim of reducing pumping and fertiliser costs, improving potato yields and quality and reducing the risk of nutrient enrichment of waterways and wetlands.

Demonstrate variable rate technology on farm and how it can be applied to manage fertiliser use and to minimise nutrient enrichment or depletion that leads to poor soil health.

To evaluate which combination of an early bromoxynil based herbicide and follow up post-emergent herbicide will provide the best weed control and Return on investment (ROI) in a system approach to wild radish control in cereals.

To complement the existing research and development occurring on the upper Eyre Peninsula while keeping in line with district agronomic practices.

To investigate the possible advantages of varying nitrogen rates over different soil types on a field in the Upper North region.

The objectives include validation of the effectiveness of varietal resistance, application rates and timing, efficacy of pre and post emergent fungicides to assess how different actives (DMI, QoI and SDHI fungicides) perform in the presence of resistant powdery mildew mutations.

In 2022 the project had three main field components

• Investigating best management of wheat powdery mildew through small plot trials.
• Surveying grower paddocks to determine frequency of mutations conferring reduced sensitivity or resistance to DMI and QoI fungicides.
• Understanding the cause of spatial variability in mildew incidence related to soil type. Collecting samples from for nutrient analysis.

• To investigate the potential of new chickpea varieties in the high rainfall zone of Victoria.

• To investigate the potential of new lentil varieties in the high rainfall zone of Victoria.

• To investigate the adaptability of a range of lentil varieties and variety mixes in a burnt stubble.
• This trial allows for comparison of varieties grown in the standing stubble on trial L14.

Variety Demonstration (Lentil, Vetch, Field Pea, Chickpea, Faba Beans)

• To maximise performance of a range of new field pea varieties across a range of plant densities.
• The information from this trial will be used to improve current grower sowing time
  recommendations and variety selections.

To evaluate effect of time of sowing and fungicides on diseases, biomass and yields of vetch varieties.

To evaluate the effects of time of sowing and varieties on disease management, biomass production and grain yield in vetch.

To evaluate time of sowing and disease management programs on the establishment, biomass development and grain yield of different vetch in comparison with faba bean and field pea.

To promote early vigour to improve biomass and yield partitioning in vetch.

To evaluate the effects of different seeding systems, which alter seed bed utilization on vetch biomass production.

To compare the performance of a range of pulse varieties and sowing dates in two contrasting soil types in North Central Victoria.

To compare the performance of a range of pulse varieties and sowing dates in two contrasting soil types in North Central Victoria.

To examine the ability of genotypes of wheat and barley to produce high yields on micronutrient deficient soils.

To investigate the potential of new vetch species/varieties for very low rainfall areas in Southern Australia.

• To evaluate the benefit of variable rate P across a paddock with various NDVI zones.
• To Illustrate how farmers trials can be easily established to monitir the effects of variable rate.
• To compare the effects on crop to various P rates.

To compare the effects and to demonstrate the economic benefits that may result from the use of variable rate fertiliser applications by broad acre farmer trial.

To compare the effects and to demonstrate the economic benefits that may result from the use of variable rate fertiliser applications by broad acre farmer trial.

To investigate the impact of variable rate lime applications on dry matter production and yields after assessment with PA technologies.

• To compare the effects of nitrogen on cereal crop yield and protein levels.
• To compare the performance of variable rate nitorgen applications to determine profitable future rate applications.

• To compare the variability of nitrogen needs across a paddock of canola
• To try and develop a method of assessing when and how much Nitrogen to apply.

• To compare Variable Rate Nitrogen against Flat rate applications.
• To compare two methods of zoning – using EM38 soil survey and 2009 yield data.

To compare the effects of variable rate nitrogen applications on wheat yield across diverse soil types.

To compare the effects of variable rate nitrogen applications on wheat yield across varying soil types.

To use a combination of N-rich strip and satellite imagery in canola to determine a variable rate nitrogen plan.

To utilise satellite imagery technology for determining variable rate nitrogen applications.

To compare the effects and demonstrate the economic benefits that may result from the use of variable rate phosphorus applications by broad acre farmer trial.

• To compare variable rate phosphorus against flat rate applications.
• To compare ' P Replacement' with P applications based on EM38 soil surveys.

• To evaluate the potential of phosphorus replacement as a method of applying variable rate fertiliser.
• Compare EM38 and NDVI as guides for nitrogen application and illustrates how simple farmer trials can be used to assess the benefits of variable managment.

• To evaluate the potential of phosphorus replacement as a method of applying variable rate fertiliser.
• Compare EM38 and NDVI as guides for nitrogen application and illustrates how simple farmer trials can be used to assess the benefits of variable managment.

• To compare the effects on using variable fertiliser rates at seeding in four production zones based on yield maps, EM maps and combining both.
• To determine if EM38 mapping adds value to yield mapping in the preparation of a VRT fertiliser strategy?

• To compare the effects of variable urea rate on two soil types.
• To compare different rates of urea applied at GS30.

• To compare the effects of variable urea rate on two soil types.
• To compare different rates of urea applied at GS30.

• To sow wheat varieties earlier to reduce the possibility of heat shock events during grain fill whilst taking into account the frost risk.
• To sow more than one variety in the one paddock as a mix to ensure that the whole crop is not susceptible to frost and heat shock at the same time.

To compare the effects VRT on different soil tyes and to compare rates of seed and fertiliser.

To include a primary trial of breeding material funded by GRDC, at Minnipa, to investigate advanced common vetch lines with specific traits best suited to this region, and enable comparison with other sites in the southern cropping region.

SAGIT trials looking at vetch for a genuine legume break crop option for cereal and mixed farmers in the marginal cropping areas of South Australia were conducted at Piednippie and Minnipa. Other trials were conducted at Morchard, Loxton and Kingsford research centre.

Multiple trials around the theme of improving and quantifying the benefit of pulses to subsequent crops. This will include comparisons of crop types in 2022, followed by cereal crops in 2023, and techniques to increase biomass (early sowing) and increase N fixation (rhizobia studies) 

Multiple trials around the theme of improving and quantifying the benefit of pulses to subsequent crops. This will include comparisons of crop types in 2022, followed by cereal crops in 2023, and techniques to increase biomass (early sowing) and increase N fixation (rhizobia studies) 

To determine benefits of various pulses (planted in 2021) compared to canola on plant available water content, mineral N content, and cereal yield. 

To determine benefits of various pulses compared to canola on plant available water content, mineral N content, and cereal yield. 

Demonstrate lentil and vetch variety performance across variable soils

To address the following questions.

• Is the variable lime technique applicable/economic in a pasture system or is it more suited to cropping systems?
• Is it viable in the smaller size paddocks that are usual in pasture systems?
• Can you measure economic gains using the technique in pasture paddocks?

To evaluate the crop safety and knockdown survivor wild radish control of Velocity solo and in tank mixtures with higher rates.

To evaluate the efficacy of Precept and other post emergent herbicides for wild radish control in a suspected Group B & I population.

To improve canola production through identification of varieties and agronomic practices with superior performance under irrigation.