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Vary your nitrogen for best results in the Mallee
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Vary your nitrogen for best results in the Mallee.. Using a combination of field trials and simulation modelling, we tested the theory that it would be profitable and better for risk management to zone according to responsiveness to nitrogen," Dr Llewellyn says... Cover of Nitrogen Management in stubble retained systems booklet "We did note that while the yields were good on the swales, the protein levels in the 'nil fertiliser' treatment were starting to drop, which indicates persistent lack of nitrogen fertiliser would not be sustainable, even on the heaviest swales and regular monitoring of starting nitrogen levels is needed."..