Department of Agriculture and Food (Western Australia) trials

This paper assesses the economic benefits of green manuring and the potential costs. It also investigates the circumstances in which green manuring will be profitable and those that result in losses to growers.

The focus of this project is to better determine the NRM impacts of immerging precision agricultural systems in WA, with particular reference to surface water management and sol health issues.  The project will be implemented by one of the leading farming systems groups in Australia in the field of precision agriculture.

The focus of this project is to better determine the NRM impacts of immerging precision agricultural systems in WA, with particular reference to surface water management and sol health issues.  The project will be implemented by one of the leading farming systems groups in Australia in the field of precision agriculture.

To assess the performance of newly released canola varieties in the West Midlands.

To assess the performance of newly released canola varieties in the West Midlands.

To assess comparative effect of anthracnose on yield and seed infection in a range of varieties and advanced lupin breeding lines.

This paper aims to summarise the grain yield response and weed control achieved by a one-off soil inversion.

To evaluate the effectiveness of establishing annual legumes into established perennial grass-based pastures by 'summer' sowing of hard-seeded serradella pod.

To support growers with agronomic decisions such as sowing time and variety selection to enhance industry profitability through improved wheat yields and grain quality.

To compare the effect of delayed seeding and seeding rates on the yield and quality performance of wheat varieties.

To assess what clay rich subsoil application rates are required for overcoming soil water repellence and how this interacts with method of incorporation.

To evaluate the performance of the historical lupin varieties in the West Midlands.

To measure the impact on crop productivity of combinations of lime and mouldboard ploughing on acidic deep yellow sand.

To determine how mouldboard ploughing (soil inversion), rotary spading and banded wetting agent affect the availability of soil nutrients.

To assess the impact of different seeding systems on crop establishment in water repellent soil.

To compare an opportunistic break crop against fallow and wheat to better define the pros and cons of fallowing.

To assess water repellent soil amelioration options and to determine whether a one-way plough can be used to ameliorate non-wetting sand for much lower cost than mouldboard ploughing or rotary spading.

Deep placement of organic matter and impact on lupin establishment.

To look at the following soil amelioration treatments on water repellent pale sand:

• no amendment (nil);
• 3t/ha limesand; and
• 150 t/ha clay rich (31% clay) subsoil spread with a multi-spreader

To assess the second year impact of mouldboard ploughing on wetting up of water repellent soil and on lupin establishment and yield.

To compare two methods for the establishment of pasture legumes (i) summer sowing where dormant hard-seed is drill sown into the paddock after the crop is harvested; and (ii) traditional sowing where scarified seed is drill sown after the break of the season and knockdown weed control.

To evaluate effectiveness of ‘summer sowing’ hard-seeded serradella pod into established perennial grass pastures.

To assess the impact of rotary spading non-wetting sandplain soil on soil properties, crop growth and productivity.

To compare commercial seeding machines that have specifically been set up to sow sub-tropical grasses.

To identify the optimum sowing time for establishment of sub-tropical grasses to the east of Eneabba.

To determine the impact that grazing of crops in winter had on subsequent grain yield and quality, production factors such as weeds, disease and nutrition, and livestock carrying capacity.

This trial is conducted to investigate the value of nitrogen on the profitability of new wheat varieties in early and late sowings in fallow/wheat system at Wongan Hills

To determine how soil inversion and banded surfactants change the availability of soil nutrients.

To conduct a field evaluation of the stage 3 lupin cultivars and breeding lines.

To investigate adaptation of new wheat varieties in their resilience to frost stress during the growing season.

The objective of this research is to determine the value of agronomic management (plant density and nitrogen) on production of quality grain for profitable wheat systems. Increasing plant density is a useful tool to increase the competitiveness of a crop against weeds, however, how will this influence grain yield and quality for the new wheat varieties.

To determine value of agronomic management (sowing rate and nitrogen) on production of quality grain for profitable wheat systems.

To compare an opportunistic break crop against fallow and wheat to better define the pros and cons of fallowing.

To improve crop production by determining the effect of sowing time and sowing rate on crop yield and grain quality risks of new wheat varieties.

To determine whether a profit can be achieved from incorporating lime in the year it is applied.

Measure yield improvement in varieties from the Lupin breeding program.

To investigate the value of nitrogen on the profitability of new wheat varieties in early (dry sowing) and late sowings in canola/wheat system at Wongan Hills

To investigate the plant density response to yield and oil content of TT and RR hybrid canola in comparison with open-pollinated canola

To investigate the plant density response to yield and oil content of TT and RR hybrid canola in comparison with open-pollinated canola.

• To identify impact of amelioration on maintaining productivity of adapted varieties in a district.
• To compare effect of amelioration on soil pH.

To independently compare a range of agricultural foliar products on wheat at Badgingarra in a replicated trial.

To assess the effects of physical, chemical and biological soil manipulation (or inputs) on soil organic carbon in relation to changes in long term crop yields and quality.

To investigate the nitrogen rate and time of application response of canola varieties to yield and oil content of TT and RR hybrids in comparison with open-pollinated types to

• provide growers in lower rainfall environments with guidelines on optimal nitrogen rates and times of application to maximise grain and oil yields, and
• determine if the management of hybrid canola nutrition is different to that of open pollinated varieties due to different responses to N rates and timing.

To evaluate yields and quality of new and existing wheat and barley varieties and their response to N.

To further investigate rotary spading and other soil amelioration techniques on the yellow sand-plain soils west of Moora.

To evaluate the influence of perennial row spacing and grass suppression on the performance of serradella summer sown into subtropical perennial-grass pastures.

To determine if there are any benefits to increased productivity and carbon cycling on a yellow sandplain soil through mechanical incorporation.

This trial aimed to compare the production of different annual legumes in the West Midlands and the associated seed loss to native budworm particularly in regards to serradella.

To determine the role of stubble management on frost severity and its effects on the grain yield of wheat 

To investigate the nitrogen rate and time of application response of canola varieties to yield and oil content of Triazine Tolerant (TT) and Roundup Ready (RR) hybrids in comparison with open-pollinated (OP) types to:

1. Provide growers in lower rainfall environments with guidelines on times of application to maximise grain and oil yields.
2. Determine if the management of hybrid canola nutrition is different to that of OP varieties due to different responses to N rates and timing.