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Oberson, Astrid ,  Pypers, Pieter ,  Bünemann, Else K. ,  Frossard, Emmanuel ,  [Management impacts on biological phosphorus cycling in cropped soils] ,  Management impacts on biological phosphorus cycling in cropped soils

Jefwa, J.M. ,  Pypers, Pieter ,  Jemo, M. ,  Thuita, Moses N. ,  Mutegi, E. ,  Laditi, M.A. ,  Faye, A. ,  Kavoo, A. ,  Munyahali, W. ,  Herselman, L. ,  Atieno, M. ,  Okalebo, J.R. ,  Yusuf, A. ,  Ibrahim, A. ,  Ndung’u-Magiroi, K.W. ,  Asrat, A. ,  Muletta, D. ,  Ncho, C. ,  Kamaa, M. ,  Lesueur, Didier ,  [Do commercial biological and chemical products increase crop yields and economic returns under smallholder farmer conditions?] ,  Do commercial biological and chemical products increase crop yields and economic returns under smallholder farmer conditions?