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soil organic phosphorus

Catalogue: GRDC Media
Break crops could hold key to tap soil phosphorus reserves.. University of Adelaide research, funded by the GRDC, on break crops has demonstrated positive effects on phosphorus uptake and yield in subsequent wheat crops... Wheat following a break crop has a greater P uptake and higher yield than continuous wheat rotations...
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Catalogue: GRDC Final Reports
Chemical forms of organic P have been partially characterised in these soils... A future project using the data generated from UA00062 and using outputs from other GRDC research projects on C and N decomposition could be aimed at the construction of a combined C:N:P organic matter mineralisation model relevant to farming systems on southern Australian soils that will underpin the development of a P fertiliser decision tool... Biochemical composition (e.g. lignin content, total and water soluble P, C and N) for a number of different plant residues were measured and related to release of plant-available P as well as changes in organic P (labile, microbial and stable) pools...
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