Abstract:
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Cropping technology, including no-tillage methods, stubble retention and the introduction of new crop species in Western Australia has changed soil nutrient profiles. This impacts on soil testing technology and positional availability of nutrients. KASM [Potassium in Agricultural Systems Model] is a decision support system that integrates existing knowledge about potassium nutrition in Western Australia at a level that allows an understanding of short and long term responses to soil fertility changes to p
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