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Epper, Carole A.Paul, Birthe K.Burra, Dharani DharPhengsavanh, PhonepaseuthRitzema, Randall S.Syfongxay, SaysomphengGroot, Jeroen C.J.Six, JohanFrossard, EmmanuelOberson, AstridDouxchamps, Sabine[Nutrient flows and intensification options for smallholder farmers of the Lao uplands]Nutrient flows and intensification options for smallholder farmers of the Lao uplands
Nesper, MaikeBünemann, Else K.Fonte, Steven J.Rao, Idupulapati M.Velásquez, Jaime E.Ramírez, BerthaHegglin, DjangoFrossard, EmmanuelOberson, Astrid[Pasture degradation decreases organic P content of tropical soils due to soil structural decline]Pasture degradation decreases organic P content of tropical soils due to soil structural decline
Fonte, Steven J.Nesper, MaikeHegglin, DjangoVelásquez, Jaime E.Ramírez, BerthaRao, Idupulapati M.Bernasconi, Stefano M.Bünemann, Else K.Frossard, EmmanuelOberson, Astrid[Pasture degradation impacts soil phosphorus storage via changes to aggregate-associated soil organic matter in highly weathered tropical soils]Pasture degradation impacts soil phosphorus storage via changes to aggregate-associated soil organic matter in highly weathered tropical soils

It is generally assumed that phosphorus (P) availability for plant growth on highly weathered and P-deficient tropical soils may depend more on biologically mediated organic P (Po) turnover processes than on the release of adsorbed inorganic P (Pi). However, experimental evidence showing the link...


Oberson, AstridFriesen, Dennis K.Rao, Idupulapati M.Buhler, SFrossard, Emmanuel[Phosphorus transformations in an oxisol under contrasting land-use systems: The role of the soil microbial biomass]Phosphorus transformations in an oxisol under contrasting land-use systems: The role of the soil microbial biomass

Chemical sequential extraction is widely used to divide soil phosphorus (P) into different inorganic (Pi) and organic (Po) fractions, but the assignment of these fractions to pools of differing plant availability, especially for low P tropical soils, is still matter of discussion. To improve this...


Buehler, S.Oberson, AstridRao, Idupulapati M.Friesen, Dennis K.Frossard, Emmanuel[Sequential phosphorus extraction of a 33P-labeled oxisol under contrasting agricultural systems]Sequential phosphorus extraction of a 33P-labeled oxisol under contrasting agricultural systems

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