Trace elements – Chris Dowling
Trace elements can greatly influence crop production and may increase profitability. Chris Dowling from Back Paddock Company presented at the Gulargambone Update. Plant tissue testing for micronutrients and likelihood of responses.
The importance of phosphorus – Chris Guppy
Crop response to P and other nutrients is influenced by region, seasonal cycles and varietal choice. Chris Guppy from University of New England presented at the Dubbo Updates. Wheat barley and chickpea varietal root responses to N P K and S and implications for management.
Stubble as a nutrient source – Bhupinder Pal Singh
Canola stubble provides more nutrients after tillage than wheat residues. NSW DPI researcher Bhupinder Pal Singh presented at the Dubbo and Wagga Wagga Updates. Enhancing availability of nutrients from soil organic matter and crop residues.
Is deep P application worthwhile? – James Hagan
There is limited economic benefit from P application in the northern grains region, especially at higher rates. James Hagan from DAF QLD presented at the Goondiwindi Update. A summary of the economics of deep P nutrition trials in the northern grains region: where have current trials provided economic benefits?
Maximising biomass – Jayne Gentry
Organic matter in cropping systems is in decline, but maximising biomass production can help. Jayne Gentry (DAF QLD) presented at Goondiwindi and Dubbo. Soil organic matter – maximising biomass is the key.
Other talks on soil constraints:
- Combining organic and conventional P fertilisers can benefit arbuscular mycorrhizas. Does combined use of organic and mineral phosphorus fertilisers support mycorrhizal colonisation.
- Using lime and varietal choice to address poor soils. Improving wheat yields on hostile soils, Topsoil pH stratification impacts on pulse production in South East Australia and Soil acidity and arresting the impact of this yield thief.