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Fluids more effective on alkaline soils

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A high proportion of phosphorus applied to these soils can remain inaccessible to crops... Phosphorus derived from the fluid form occupies a larger volume of soil surrounding the fertiliser, which increases the likelihood that roots will come into contact with the nutrient... Shoot response of wheat to fluid fertilisers (APP and H 3 PO 4 ) compared to granular fertiliser (Triple P) and a control growing on a Vertosol collected from Minyip in the Wimmera under glasshouse conditions...