The 2019 GRDC Grains Research Updates for the western region were held in Perth, WA on 25th and 26th February. One of the main themes for these Updates was looking at ways to mitigate the challenging soil conditions growers faced in the western region.
Presentations showcasing the latest research to address various soil types and conditions included:
- The role of local carbonate sources and cultivation on the acid sandplain in the eastern wheatbelt
- The effect of row spacing, deep ripping, gypsum, water harvesting furrows and mulching crops grown on hard-setting, sodic soils
- The role of elemental sulfur in improving chemical and physical characteristics of a sodic soil
- Yield benefits and economics of crushing sheet laterite soils
- The best performing wheat varieties on sodic and dispersive soils at Merredin and Broomehill
- How do we define gypsum responsive soils?
- Lime slotting effects on wheat growth in an acidic soil profile
- Recurring lime applications to fix acidity in the whole soil profile
- How ameliorating soil acidity led to reduced weed growth
- Combined application of lime and gypsum boosts grain yield in acidic soil
Other topics relating to crop nutrition that were covered by GRDC Update presentations in the western region included:
- Using digital technologies to assist with nitrogen management
- Deep soil re-engineering to optimise grain yield under low rainfall conditions
- The use of elemental sulphur-coated phosphorus fertiliser for canola production