Managing mineral phosphorus application with soil residual phosphorus reuse in Canada
Jiaxin Wang,
Zhiming Qi,
Elena M. Bennett
Abstract:With limited phosphorus (P) supplies, increasing P demand, and issues with P runoff and pollution, developing an ability to reuse the large amounts of residual P stored in agricultural soils is increasingly important. In this study, we investigated the potential for residual soil P to maintain crop yields while reducing P applications and losses in Canada. Using a P cycling model coupled with a soil P dynamics model, we analyzed soil P dynamics over 110 years across Canada's provinces. We found that using soil… Show more
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