" Managing soil microorganisms to unlock the P bank in soil: Taking back what.. Much of the remaining fertiliser P becomes fixed in soil and the P 'bank' in Australian arable soils is estimated to be worth $10 billion, or 100 kg P/ha of arable land (Cornish 2009)... The Australian grains industry needs new strategies to increase plant access to fixed P in soil that don "t compromise productivity, income or soil fertility Let "s take back what "s ours!This project will identify practical agronomic strategies allowing grain growers to pro-actively manage microbial release of fixed P and P uptake by grain crops...
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P is transported to the root surface by diffusion... P supply by diffusion is determined by: the effective P diffusion coefficient (soil dependent), the P concentration gradient from the soil solution to the root surface (depends on soil solution P concentration and root uptake characteristics), root surface area (bigger root zone volume, more P uptake)... Technology to reduce spray drift GCTV: Drift Reducing Technology..