Low phosphorus (P) supply is a major limitation to pasture establishment and production in highly weathered acid soils. Previous research showed that the forage legume, Arachis pintoi, was more efficient in acquiring P from infertile acid soils than the forage grass, Brachiaria dictyoneura. The m...
Rao, Idupulapati M.
,
Borrero, V.
,
Ricaurte Oyola, José Jaumer
,
García, Ramiro
,
[Adaptive attributes of tropical forage species to acid soils. V. Differences in phosphorus acquisition from less available inorganic and organic sources of phosphate]
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Adaptive attributes of tropical forage species to acid soils. V. Differences in phosphorus acquisition from less available inorganic and organic sources of phosphate
Friesen, Dennis K.
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Rao, Idupulapati M.
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Thomas, Richard J.
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Oberson, Astrid
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Sanz Scovino, José Ignacio
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[Adquisición y reciclaje de fósforo en sistemas de cultivos y pasturas en suelos tropicales de baja fertilidad]
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Adquisición y reciclaje de fósforo en sistemas de cultivos y pasturas en suelos tropicales de baja fertilidad
Aluminum toxicity limits plant growth in acid soils. Because of their advanced state of weathering, acid soils of the tropics also tend to be deficient in nutrients. A realistic assessment of plant adaptation to these soils would therefore require Al-toxic conditions under which growth is simulta...
Wenzl, Peter
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Mancilla, LI
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Mayer, Jorge Edgard
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Albert, R.
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Rao, Idupulapati M.
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[Simulating infertile acid soils with nutrient solutions: The effects on Brachiaria species]
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Simulating infertile acid soils with nutrient solutions: The effects on Brachiaria species
Rivera, M.
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Amézquita Collazos, Edgar
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Rao, Idupulapati M.
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Corrales, I.I.
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Chávez, Luis F.
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[Establecimiento de sistemas agropastoriles y su efecto en el rendimiento de cultivos en suelos ácidos de sabanas]
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Establecimiento de sistemas agropastoriles y su efecto en el rendimiento de cultivos en suelos ácidos de sabanas
Phosphorus (P) deficiency and aluminium (Al) toxicity are widespread in Oxisols of the tropical savannas of eastern Colombia. A field experiment was conducted to determine the effect of Al toxicity and P deficiency on plant growth and nutrient uptake of two Brachiaria species. To examine the infl...
Hausller, K
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Rao, Idupulapati M.
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Schultze-Kraft, Rainer
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Marschner, H
,
[Shoot and root growth of two tropical grasses, Brachiaria ruziziensis and B. dictyoneura, as influenced by aluminium toxicity and phosphorus deficiency in a sandy loam oxisol of the eastern plains of Colombia]
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Shoot and root growth of two tropical grasses, Brachiaria ruziziensis and B. dictyoneura, as influenced by aluminium toxicity and phosphorus deficiency in a sandy loam oxisol of the eastern plains of Colombia
Somaclonal variation offers the possibility to obtain changes in one or a few characters of an otherwise outstanding cultivar without altering the remaining, and often unique, part of the genotype. It has been shown to be heritable for some species. A check line of Stylosanthes guianensis (Aubl.)...
Rao, Idupulapati M.
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Roca, William M.
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Ayarza, Miguel Angel
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Tabares, E
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García, R.
,
[Somaclonal variation in plant adaptation to acid soil in the tropical forage legume Stylosanthes guianensis]
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Somaclonal variation in plant adaptation to acid soil in the tropical forage legume Stylosanthes guianensis
Amézquita Collazos, Edgar
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Rao, Idupulapati M.
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Rondón, Marco Antonio
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Ayarza, Miguel Angel
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Hoyos, P.
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Molina, DL
,
Corrales, I.I.
,
[Mejoramiento de oxisoles de baja fertilidad para sistemas agropastoriles de alta productividad en sabanas tropicales de Colombia]
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Mejoramiento de oxisoles de baja fertilidad para sistemas agropastoriles de alta productividad en sabanas tropicales de Colombia
Basamba, T.A.
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Barrios, E.
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Amézquita Collazos, Edgar
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Rao, Idupulapati M.
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Singh, B.R.
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[Efecto de sistemas de labranza en el rendimiento de maíz en un oxisol de la sabana colombiana: fraccionamiento de materia orgánica y fósforo del suelo]
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Efecto de sistemas de labranza en el rendimiento de maíz en un oxisol de la sabana colombiana: fraccionamiento de materia orgánica y fósforo del suelo
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.
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Oberson, Astrid
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Rao, Idupulapati M.
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Friesen, Dennis K.
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Frossard, Emmanuel
,
[Sequential phosphorus extraction of a 33P-labeled oxisol under contrasting agricultural systems]
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Sequential phosphorus extraction of a 33P-labeled oxisol under contrasting agricultural systems
Borrero, Gonzalo
,
Friesen, Dennis K.
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Oberson, Astrid
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Rodríguez, M.
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Rao, Idupulapati M.
,
[Destinos de fósforo aplicado como fertilizante en oxisoles de los Llanos Orientales de Colombia: fraccionamiento secuencial]
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Destinos de fósforo aplicado como fertilizante en oxisoles de los Llanos Orientales de Colombia: fraccionamiento secuencial