trials

Varieties can differ in their ability to yield at various sowing dates. The same goes for their response to various rates of nitrogen and how they turn that nitrogen into yield and protein. This trial was designed to measure the influence of sowing date and nitrogen rate across six common wheat varieties.

To (i) ground truth through statistical analysis of small plot trials current practices of leading farmers in regards to the use of Variable Rate Technology (VRT), predictive yield modelling and nutrition modelling in improving water use efficiency and hence profitability; (ii) address the hypothesis that greater return on investment can be achieved through targeted nutrition applications according to variety, production zone, plant available water (PAW) and seasonal conditions; (iii) assist in the generation of data to extend the process of using soil moisture probe data in conjunction with Yield Prophet (YP) simulations to assist with production decisions for different soil zones (with differing PAWC), with particular focus on top-up nitrogen.

This project aimed to explore different management strategies to overcome copper deficiency in cereals. The project compared the effectiveness of copper sulfate and copper chelate applied either as liquids banded at seeding or as a foliar spray. The project also evaluated the effect of different timings of application of the foliar sprays and their efficiency.
This project aimed to benefit local and South Australian farmers by establishing an independent best practice management guide for copper applications for the future.

The trial has 6 treatments with 4 replications and compares various BioAg products and rates against an annual application of single super.

The BioAg fertiliser trial was established in 2019. The trial has 6 treatments with 4 replications and compares various BioAg products and rates against an annual application of single super.

• To investigate the effects of nitrogen fertiliser application to established kikuyu stands.

To identify key ingredients of agronomic packages that deliver high yielding wheat crops with good quality in the Parndana environment.

• To assess P application rates and its effects on pasture growth and soil P levels.

To investigate the different responses on pasture growth to triple, single and gold phosphorus fertiliser application.

• To investigate the different responses on pasture growth to triple, single and gold phosphorus fertiliser application.

• To investigate the different responses on pasture growth to triple, single and gold phosphorus fertiliser application.

• To investigate the potential use of ProGibb SG as a growth promoting agent.

• To investigate the potential use of ProGibb SG as a growth promoting agent.

To test the impact of adding gypsum, lime or fertilisers to the subsoil.

To test the impact of adding gypsum, lime or fertilisers to the subsoil of a profile typical for the Vivonne Bay environment but in a situation which usually gets very wet, and is designed to run for at least two years.

• To investigate the use of Kikuyu in farming systems on Kangaroo Island.

To investigate the role of the nitrogen stabilisers and plant stimulants on pastures.

• To look at nitrogen application on pasture. The focus was: “Does it pay to apply nitrogen?”

To answer the following questions:

1. Does it matter what form the nitrogen is in? (i.e. granular vs foliar), and
2. Is it best to apply a little often or can you get away with just one big application?

To look at different Nitrogen rates, timings and products under well drained conditions.

To look at nitrogen and sulphur management in wheat.

• To determine the optimum timing of nitrogen in waterlogged wheat.

• To investigate the role of a range of nutrients applied both on the surface and at depth, on crops grown on sandy soils.

To assess the effects of trace elements on anuello wheat production.

To undertake a variable rate grazing trial in pastures.

To identify key ingredients of agronomic packages that deliver high yielding canola crops with high oil contents in the Parndana environment.

• To identify key ingredients of agronomic packages which deliver high yielding wheat crops with good quality in the Parndana environment.

To observe the effect of fungicide application timing in controlling Septoria tritici blotch in wheat in the MRZ and LRZ of the Southern Australia.

To test new fertilisers at Marnoo.

To determine if DGT could predict P fertiliser requirements for the field and to compare results from the DGT soil P test with other common soil P testing techniques (Colwell P and resin).

To work out what the limiting factors to production are on the sodic soils of the Tyrell land system.

To trial and demonstrate two possible agronomic adaptations to a changing climate:

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

To investigate the effect of a number of biological seed dressings, organic and inorganic fertilisers on canola yield.

To investigate the application of an alternative foliar fertiliser.

To investigate the effect of a number of bioilogical seed dressings, organic and inorganic fertilisers on wheat yield.

To investigate a number of organic and inorganic fertilisers on wheat yield.

To conduct an alternative nutrition trial.

To conduct an evaluation of Jockey seed applied fungicide.

To investigate:

• the efficacy of the pre-emergent herbicide treatments on brome grass,
• the weed competitiveness of different varieties at different row spacing configurations, and
• the relative yields of the different varieties with the different herbicide applications and row spacing configurations.

To examine the value of canopy management in the Mallee environment.

To examine the value of canopy management in the Wimmera environment.

To look at canopy management in malting barley.

To evaluate the effectiveness of various strategies for managing foliar diseases in separate barley (Experiment 1) and wheat (Experiment 2) experiments using foliar and fertiliser applied fungicides.

To assess the response of six barley varieties treated with five different N rates at sowing.

To determine whether late sown cereal crops reqire higher rate of P.

To determine the ways in which different crop types influence available soil P and the P requirements of subsequently sown cereals

To determine the most cost effective herbicide in wheat (Meering) to control the most common weeds found in the southern Mallee/northern Wimmera.

To increase grain protein (%) in wheat and barley by means of late applications of nitrogen (N) applied as UAN.