Tag archive: fertiliser

How to manage nitrogen in no-till residues

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 […]

New deep P tool calculates the benefits and payback for you

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 […]

Kick-start crops with compost

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 […]

Quality fertiliser decisions backed by science

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 […]

Webinar: How to check your pulse-N

Pulse crops can be a valuable source of nitrogen within cropping systems. The amount of N fixed by legumes can vary substantially and is affected by the species of crop, soil and seasonal conditions and crop management factors.
In this webinar, QDAF senior agronomist Howard Cox and researcher Professor David Herridge, […]

Make the most of your fertiliser budget with the Four Rs

Best practice crop nutrition seeks to make the most of your fertiliser budget and minimise environmental impact. The ‘Four Rs’ is a nutrient management framework that aims to match nutrient supply with crop needs.
The Four Rs
The four components of the framework are:

The RIGHT source fertiliser  
At the RIGHT rate
At […]

Use paddock test strips to get the most out of your fertiliser budget

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 […]

A shift in soil pH can improve Phosphorus response

 Soil pH and phosphorus (P) fertiliser can interact to make soil phosphorus more available. This can happen when:

there are no other major nutrient deficiencies.
recent lime application has produced a large change in soil pH (>0.5 pH units).

The soil pH and P interaction is driven by changes to root growth in […]

What happens to urea with high residue loads?

Question to @aucropnutrition via twitter
What effect do high crop residues have on spread urea? Does some of the applied nitrogen (N) get used to break down the stubble and therefore become unavailable to the plant?
When urea dissolves on the surface of the residues in humid air or dew it gets […]