Society of Precision Agriculture Australia trials

To provide growers with the tools needed to adopt site-specific weed management (SSWM) strategies as a result of a commercially viable weed ID and mapping system being demonstrated.

To provide growers with the tools needed to adopt site-specific weed management (SSWM) strategies as a result of a commercially viable weed ID and mapping system being demonstrated.

• To compare the effects of seed rate on ryegrass competition.
• To assess the potential of zone management of fertiliser and other inputs.

To provide growers with the tools needed to adopt site-specific weed management (SSWM) strategies as a result of a commercially viable weed ID and mapping system being demonstrated.

To demonstrate the effectiveness of weed sensing technology (WeedSeeker) for controlling problematic low population weeds (e.g. Prickly Lettuce).

To identify the most effective alternate techniques and discover the impacts they have on weed control, yield and grain quality

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

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

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

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

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 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 determine if precision ag tools can improve the efficiency of soil amelioration as well as assess the effectiveness of amelioration techniques.
• To compare delving, spading and gypsum to improve sodic and bleached soils.

To develop a method using PA tools and VR technology, to resolve low yielding sandy rises in cropping paddocks.

To compare the effects varying fertiliser rates on three different soil types and to compare fertiliser rates, Nil, replacement, standard and high.

To provide growers with the tools needed to adopt site-specific weed management (SSWM) strategies as a result of a commercially viable weed ID and mapping system being demonstrated.

To provide growers with the tools needed to adopt site-specific weed management (SSWM) strategies as a result of a commercially viable weed ID and mapping system being demonstrated.

• To use PA maps to indentify and sample soil zones within paddocks.
• To identify potential soil specific nitrogen responses within paddocks.

To use PA maps to indentify and sample soil zones within a paddock. To identify potential soil specific nitrogen responses within paddocks

• To use PA maps to identify and sample soil zones within a paddock.
• To identify potential soil specific nitrogen responses within paddocks.
• To compare different nitrogen fertiliser products.

To compare soil pH mapping with VERIS Soil pH Detector against EM38 zones and satellite imagery

To test the accuracy of ryegrass mapping using satellite imagery.

• To demonstrate the use of crop sensors.
• To explore the relationship between in-season crop reflectance, crop biomass andcrop nitrogen content.
• To assess the suitability of the data to assist in making decisions on crop nitrogen requirements.

To demonstrate the production risks associated with sowing different length maturity wheat varieties at different times.

To assess the effects of plant growth regulants (PGR’s) on crop growth and grain yield across variable soils in wheat and barley.

To assess the effects of plant growth regulants (PGR’s) on crop growth and grain yield across variable soils in barley.

To compare the effects of different phosphorus rates and soil types on wheat production and to extend information to local growers and identify where savings can be made

To compare the effects of P rates on barley yields across production zones and to assess the effects of P rates on plant and grain P concentrations.

• To investigate the potential role of reducing inputs to improve gross margins.
• To examine the effect of in crop monitoring using appropriate PA technology to enhance yield.
• To demonstrate to local farmers the potential use of PA tools for crop management.

• To investigate the benefits of a range of spatial datasets including soil pH mapping, satellite imagery, yiled maps.
• To compare different potash rates in areas of paddocks which are believed to be potash deficient.

To compare the effects of starter fertiliser (ZincStar) on wheat yield at Jil Jil in the southern Mallee district, VIC.

• To compare the effects on yield and economics of variable rates of P.
• To compare yield and economics of N across identified paddock zones.

• To compare the effects on yield and economics of variable rates of P.
• To compare yield and economics of N across identified paddock zones.

To overcome the challenges in setting up variable rate controllers

To provide growers with the tools needed to adopt site-specific weed management (SSWM) strategies as a result of a commercially viable weed ID and mapping system being demonstrated.

• To encourage Mark Stoeckel, Paringa-Murtho grain grower, to test a small range of nutrient and rate treatments on his paddock.
• To use precision yield mapping to provide an accurate analysis of the trial.
• To demonstrate Precision Agriculture technologies, especially variable rate to demonstrate reduced risk and maximised return in continuous cropping systems.
• To show the benefits of using EM38 and 'Your Soils Potential' soil testing service to map subsoil constraints.
• To demonstrate and extend the benefits of precision agriculture technology to SA Mallee growers.