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 […]
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 […]
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 […]
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 […]
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 […]
Micronutrients or trace elements are often suspected to be deficient in some Australian cropping regions. Some trace element applications are now routine. But recent trials in areas with reported deficiencies have shown little response to micronutrient applications.
In southeastern Australia, 23 trials were run on wheat, barley and canola […]
Paddock nutrient test strips showed two nutrient deficiencies in Justin Wundke’s barley crop. Justin and family run a cropping and prime sheep enterprise in South Australia.
Before sowing last year’s crop Justin knew his paddock could have an issue with sulfur deficiency. Justin set up some test strips in his paddock after […]
eXtensionAUS Crop Nutrition published 49 articles in 2016. These were the most popular:
Can I burn lime and gypsum with stubble?
Bottom line: Loss of limestone will be minimal, gypsum might lose some solubility.
2. Three reasons why topdressing nitrogen can fail
Not enough rain after topdressing, too wet, too late!
3. The best frost tactics for […]
Soil compaction caught the eye of growers and advisors at recent field days. Soil pits were part of every More Profit from Crop Nutrition roadshow field day. Soil scientists explained what they could see in the soil profiles.
Crop nutrition relies on roots exploring the soil to access nutrients. Ideally, soil […]