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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
Borrero, GonzaloFriesen, Dennis K.Oberson, AstridRodríguez, M.Rao, Idupulapati M.[Destinos de fósforo aplicado como fertilizante en oxisoles de los Llanos Orientales de Colombia: fraccionamiento secuencial]Destinos de fósforo aplicado como fertilizante en oxisoles de los Llanos Orientales de Colombia: fraccionamiento secuencial

Crop simulation models have been used successfully to evaluate many systems and the impact of change on these systems, e.g. for climatic risk and the use of alternative management options, including the use of nitrogen fertilisers. However, for low input systems in tropical and subtropical region...


Delve, Robert J.Probert, MECobo Borrero, Juan G.Ricaurte Oyola, José JaumerRivera Pena, MBarrios, E.Rao, Idupulapati M.[Simulating phosphorus responses in annual crops using APSIM : Model evaluation on contrasting soil types]Simulating phosphorus responses in annual crops using APSIM : Model evaluation on contrasting soil types
Rao, Idupulapati M.Friesen, Dennis K.Osaki, Mitsuru[Plant adaptation to phosphorus: Limited tropical soils]Plant adaptation to phosphorus: Limited tropical soils
Beebe, Stephen E.Ramírez, JuliánJarvis, AndyRao, Idupulapati M.Mosquera Cifuentes, Gloria MariaBueno, Juan MiguelBlair, Matthew W.[Genetic improvement of common beans and the challenges of climate change]Genetic improvement of common beans and the challenges of climate change
Rao, Idupulapati M.Borrero, V.Ayarza, Miguel AngelGarcía, Ramiro[Adaptation of tropical forage species to acid soils : the influence of varying phosphorus supply and soil type on plant growth]Adaptation of tropical forage species to acid soils : the influence of varying phosphorus supply and soil type on plant growth
Margenot, Andrew J.Singh, Bal RamRao, Idupulapati M.Sommer, Rolf[Phosphorus fertilization and management in soils of Sub-Saharan Africa]Phosphorus fertilization and management in soils of Sub-Saharan Africa

desacelerar la decadencia de la pastura; y el sistema de enraizamiento profundo y abundante de las gramíneas recibe el C atmosférico fijado y lo secuestra luego en profundidad en mucha mayor cantidad que las especies de la sabana nativa. Dada la gran extensión que ocupan las pasturas de Brachiari...


Boddey, Robert M.Rao, Idupulapati M.Thomas, Richard J.[Reciclaje de nutrimentos e impacto ambiental de las pasturas de Brachiaria]Reciclaje de nutrimentos e impacto ambiental de las pasturas de Brachiaria
Rao, Idupulapati M.Kerridge, Peter C.Macedo, Manuel Cláudio Motta[Requerimientos nutricionales y adaptación a los suelos ácidos de especies de Brachiaria]Requerimientos nutricionales y adaptación a los suelos ácidos de especies de Brachiaria

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