The yields of ‘break crops’ are more important to farm incomes with higher prices for some non-cereal crops. In 2017, 22.5 million hectares were sown to winter crops. Over 20% – 4.7 million ha – were non-cereals. In the period leading up until 2011, break crops were around 14% of […]
Deep N soil tests are showing low available nitrogen (N) to start 2017 winter crops. Just over half of the tests coming through Nutrient Advantage Lab Services show < 30 kg/ha of plant available nitrogen in the root zone. Three- quarters show < 60 kg/ha of nitrogen.
With less than 30 […]
Keys to successful sampling and interpretation of plant tissue analysis in winter crops
Friday, 28 July 2017 3:00 PM AEST
Presented by Chris Dowling
Chris Dowling is presenting a FREE WEBINAR for advisors and growers from all Australian grains regions. It will provide information about key considerations when sampling and interpreting plant tissue analysis for winter crops across Australia.
Chris will […]
Crop residues influence the supply and uptake of nitrogen (N). In the long term, residues will improve soil fertility. Stubbles can immobilise soil N as they break down. Moisture makes a big difference to the rate of stubble decomposition and mineralisation of nitrogen in the soil.
Nathan Craig was involved […]
Sandy soils can show poor water use by crops. There are around 5 million hectares of sandy soils in Australia’s low-medium rainfall southern region. Growers see poor crop performance even with residual subsoil water at harvest.
To date, options to improve sandy soils are either:
Mitigation: lower-cost, annual activities. Techniques include […]
Responsive nitrogen (N) management optimises grain yield and grazing value from dual-purpose crops. Dual-purpose crops are sown early, grazed during winter, then grown on to produce grain. For dual purpose crops in the southern region the framework for N nutrition should be:
Apply adequate N upfront to promote vigorous forage […]
Around 25–30% of nitrogen (N) applied to paddocks is lost each season in the northern region. Researchers are not recovering this nitrogen from the soil or the crop biomass.
Isotope labelled 15N fertiliser is used to track fertiliser nitrogen through the cropping system. Field trials in NSW and Queensland with sorghum […]
Subsoil phosphorus (P) deficiency costs growers in Queensland and Northern NSW around $80–100 million each year in reduced yield. Deep P fertiliser applications into the subsoil can improve yield but are a long-term decision. They are moderately expensive and returns are not immediate. The Deep-P calculator helps Northern region growers […]
Compost can improve overall soil health and benefit crops. The organic matter may improve soil structure, infiltration and porosity. The soil’s water and nutrient holding capacity may get a boost. Compost feeds the microbes in soil, which in turn increases soil fertility.
Compost and nutrients
Individual composts are different. The source […]
Australian crop advisors can use the best available science to give fertiliser advice. The Better Fertiliser Decisions for Cropping (BFDC) database:
is the best available data resource
is continually upgraded with the latest field trial results
holds data from over 5,600 research trials looking at fertiliser response
underpins the recommendations of Fertcare […]