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Tag archive: denitrification

How much nitrogen are we losing?

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 […]

Test first, then time Nitrogen fertiliser to reduce losses

Optimal timing of Nitrogen fertiliser applications can maximise crop uptake and reduce losses to the atmosphere. Soil Nitrogen (N) dynamics in Victoria show some big differences between regions. High rates of N losses recorded from soils in the High Rainfall Zone (HRZ) emphasise how important timing of N applications can […]