Topic: soil carbon

How to account for stubble nutrients next season

Stubbles can be a source of nutrients for next season. Different crops grown under different conditions have varying amounts of nutrients in their stubbles. Nutrient budgets can consider the amount and type of stubble.
How much stubble?

Stubble loads can be estimated from grain yield and the amount of growth. For cereals, […]

How is extension for crop nutrition evolving?

Over 7000 people engaged with the MPCN Northern Region program in 2012 – 2015. The More Profit for Crop Nutrition (MPCN) program aimed to improve returns from fertiliser. The program funded research and extension on soil and crop nutrition. The e-Extension and Training projects integrated the latest advice. Growers and […]

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 […]

How to include ammonium-N in recommendations

It used to be that nitrate was often the only form of nitrogen (N) specified in soil test results. Now it’s common for soil test results to specify the quantity of ammonium-N as well.
Recently some unusually high ammonium levels – equal to or higher than nitrate levels – have […]

Reducing Nitrogen losses in the High Rainfall Zone of Victoria

Strategies to reduce Nitrogen (N) losses in Victorian High Rainfall Zone (HRZ) cropping systems are getting clearer.
Recent research in south western Victoria examined rates of N applied, placement of fertilisers and nitrification inhibitors. This work is part of the national agricultural nitrous oxide research program, supported by the GRDC.
Key […]

What nutrients are lost when making hay from failed crops?

Cutting for hay is an option to get some economic value from a failed crop. Growers with an eye to the long term productivity of their paddocks weigh the value of the hay against the value of leaving the crop material in the paddock. Nutrients that would otherwise be recycled […]

Fertcare® Nitrogen Use Efficiency workshops

Applying the right form of nitrogen fertilizer at the right rate, at the right time and in the right place has important implications for crop profitability, greenhouse gas emissions and water quality impacts. The Fertcare® and Cotton Info Team is facilitating a Nitrogen Use Efficiency (NUE) workshop for Fertcare® participants […]