Hart SA trials

To test the ability of Yield Prophet to predict wheat yield.

To report on Yield Prophet performance in 2016.

To report on Yield Prophet performance in 2015.

To report on Yield Prophet results for 2014.

To report on Yield Prophet performance in 2013.

To report on Yield Prophet performance in 2012.

To report on Yield Prophet performance in 2011.

To report on Yield Prophet performance in 2010.

To report on Yield Prophet performance in 2009.

To report on Yield Prophet performance in 2008.

To monitor water use with a capacitance probe installed in each plot to update the water use efficiency benchmark of 20 kg/ha/mm derived from French and Schultz.

To evaluate the performance of new pre-emergent herbicides such as Boxer Gold, Sakura and Outlook for the control of wild oats.

This trial is apart of a three year GRDC project to develop a benchmark to be used to accurately determine crops' N status.

The aim of this years trial is to determine how a crops’ N status changes in relation to early sowing and variety.

To improve the nitrogen and water use efficiency of wheat by manipulating canopy size using different row spacing, nitrogen application timing and plant density.

To investigate where wheat performs best in a crop rotaion.

To study the effect of elevated temperature, sowing time, variety, and N rate on wheat yield.

To unravell the combined effects of variety, sowing time and N, on yield and its components.

• To improve the nitrogen and water use efficiency of wheat by manipulating canopy size and structure using post sowing applications of nitrogen.
• To maintain yield and quality, while reducing the risks associated with excess early crop growth.
• To compare and investigate the value of different optical crop sensors.

• To improve the nitrogen and water use efficiency of wheat by manipulating canopy size and structure using post sowing applications of nitrogen and different row spacing.
• To maintain yield and quality, while reducing the risks associated with excess early crop growth.
• To compare how different nitrogen strategies effect crop competition with annual ryegrass.
• To compare and investigate the value of different optical crop sensors.

To investigate the use of different sowing timings and N management to improve yield and maintain protein of wheat.

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

To assess the economic benefit of variable rate nitrogen application, when combined with crop sensor information and yield potential zones to build the variable rate application map.

To investigate options to increase canola profitability and reduce production risk with tactical agronomy advice underpinned by physiological insights.

To improve the water use efficiency of canola, through early sowing and correct variety selection. 

To compare the performance of a controlled traffic system against a conventional traffic system.

To compare the effectiveness of early sowing using a range of wheat varieties with different varietal maturities.

To measure the effect of time of sowing (TOS) and plant density on wheat and durum varieties with different development habits and maturities.

To measure the effect of time of sowing (TOS) and plant density on wheat varieties with different development habits and maturities.

To identify management decisions that impact on blackspot in field peas and to validate disease risk predictions from Blackspot Manager.

To measure the interaction between stubble management, frequency of rainfall events and fertiliser nitrogen on:

• the retention of soil water accumulated outside the growing season.
• the value of stored water to crop physiological traits and yield.

To measure the interaction between stubble management and soil moisture on:

1. the retention of soil water accumulated outside the growing season, and
2. the value of stored water to crop physiological traits and yield.

To investigate yield responses to subsoil amelioration treatments.

To investigate effects of soil amelioration methods on subsoil constraints and the benefots to grain yields in the Mid-North of SA.

To investigate if stubble/seeding direction and management (plus or minus stubble) effects lentil growth and yield

To test the efficacy of a range of droplet sizes on ryegrass seed heads using a commonly used desiccant herbicide (paraquat).

To investigate the performance of soil moisture retention granules on wheat grain yield.

To investigate the performance of soil moisture retention granules and seed coatings on wheat grain yield. 

To measure the effect of improved early vigour and production of hybrid triazine tolerant canola, compared to a standard open pollinated variety, on grain yield and quality.

To investigate the effect of full stubble retention compared with other stubble management methods and seeding technologies.

To investigate the effect of full stubble retention compared with other stubble management methods and seeding
technologies.

To examine differences in salt tolerance between barley varieties.

To measure if the period of residual ryegrass control can be extended using PSPE treatments.

To compare the performance of commercial hybrid seed against farmer retained (F1) seed using conventional, triazine and imidazalinone tolerant varieties.

To develop improved AB disease control management strategies through the use of fungicides. The 2016 trials were aimed to assess new experimental fingicides alongside the current strategy and also include variations in fungicide application timings to improve disease control efficacy. 

To investigate the effect of row spacing and standing stubble on the grain yield and harvestability of pulse crops.

To assess the usefulness of using historical yield data to predict future yields and adjust fertiliser rates according to production zones.

To evaluate the efficacy of pre-emergent herbicides applied post sowing on ryegrass control and crop safety in wheat with the aim of

a) increasing residual control,

b) improving in-row control and

c) preventing onset of trifluralin resistance.

To investigate the potential efficacy of pre-emergent herbicides applied post sowing on ryegrass control. It aims to measure if the period of residual ryegrass control can be extended and also if in-row ryegrass control can be improved.

To measure the effect of plant growth regulants and their interaction with nitrogen on wheat grain yield and quality, in the absence of lodging.

To measure the effect of plant growth regulants and their interaction with nitrogen on wheat grain yield and quality, in the absence of lodging.

To measure the effect of PGRs on canola plant height and grain yield.