You are here

n fertilizer

Catalogue: GRDC Updates
Nitrogen fertiliser costs dominate the fertilizer budgets of cereal cropping systems across the northern region... Given the lack of price signals for grain protein in sorghum, we can use a default 10% protein (1.6%N) as the target at which crop yields are not limited by N availability... Using the information we can determine a crop nitrogen budget for our projected yield target...
Related categories:
Catalogue: GRDC Research Summaries
Activity 1: Estimation of the actual amount of N fixed: In Australia, most estimates of FL-N fixation were determined using indirect methods, e.g. N balance estimates or nitrogenase activity measurements using acetylene reduction assay... While the estimates provide an indication of N fixation potential, they do not provide direct estimates of N fixed... Estimation of the actual amount of N fixed quantify the amount of N fixed - Acombination of 15N isotope tracer methodology and biochemical methods are being standardized to quanity the amount of 15N fixed using soils from South Australia (Calcorosol, Alfisol, Vertisol) and Western Australia (Sodosol)...
Related categories:
Catalogue: GRDC Research Summaries
Activity 1: Estimation of the actual amount of N fixed: In Australia, most estimates of FL-N fixation were determined using indirect methods, e.g. N balance estimates or nitrogenase activity measurements using acetylene reduction assay... While the estimates provide an indication of N fixation potential, they do not provide direct estimates of N fixed... Estimation of the actual amount of N fixed quantify the amount of N fixed - Acombination of 15N isotope tracer methodology and biochemical methods are being standardized to quanity the amount of 15N fixed using soils from South Australia (Calcorosol, Alfisol, Vertisol) and Western Australia (Sodosol)...
Related categories: