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The functioning of trees as a safety-net for capturing nutrients leached beyond the reach of crop roots was evaluated by investigating changes in exchangeable cations (Ca, Mg, and K) and pH in a wide range of medium to long term alley cropping trials in the derived savanna of West Africa, compare...


Vanlauwe, BernardAihou, K.Tossah, B.Diels, J.Sanginga, NteranyaMerckx, R.[Senna siamea trees recycle Ca from a Carich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone]Senna siamea trees recycle Ca from a Carich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone

Ngambeki, D.Wilson, G.F.[Economic and onfarm evaluation of alley cropping with Leucaena Leucocephala: 1980-1983 activity consolidated report]Economic and onfarm evaluation of alley cropping with Leucaena Leucocephala: 1980-1983 activity consolidated report

Crop response, tree biomass production and changes in soil fertility characteristics were monitored in a long-term (1986–2002) alley-cropping trial in Ibadan, Nigeria. The systems included two alley cropping systems with Leucaena leucocephala and Senna siamea on the one hand and a control (no-tre...


Vanlauwe, BernardDiels, J.Sanginga, NteranyaMerckx, R.[Long term integrated soil fertility management in southwestern Nigeria: crop performance and impact on the soil fertility status]Long term integrated soil fertility management in southwestern Nigeria: crop performance and impact on the soil fertility status

The potential of alley cropping systems supplied with a limited amount of fertilizer to restore crop productivity on a degraded site and to maintain crop productivity on a recently cleared, non-degraded site on ‘terre de barre' soils in Southern Bénin was investigated from 1994 to 1996. Leucaena ...


Aihou, K.Sanginga, N.Vanlauwe, BernardLyasse, O.Diels, J.Merckx, R.[Alley cropping in the moist savanna of West Africa I. Restoration and maintenance of soil fertility on terre de barre soils in Benin Republic]Alley cropping in the moist savanna of West Africa I. Restoration and maintenance of soil fertility on terre de barre soils in Benin Republic

Se resumen las actividades de la seccion de Fitopatologia del Programa de Pastos Tropicales del CIAT durante 1982, cuyos objetivos incluyen: (1) evaluar todo el germoplasma por resistencia a enfermedades en las principales localidades de investigacion: (2) detectar, identificar y estudiar enferme...


International Center for Tropical Agriculture[Plant pathology]Plant pathology

El objetivo de la seccion de Microbiologia de suelos es maximizar los beneficios de la fijacion biologica del N en forrajes adaptados a los suelos acidos e infertiles de America Latina tropical, con prioridad en la simbiosis leguminosa/Rhizobium. La estrategia de la investigacion consiste en: 1) ...


International Center for Tropical Agriculture[Soil microbiology]Soil microbiology

Se presentan aspectos sobre el mejoramiento de Stylosanthes capitata, S. guianensis, Centrosema pubescens, Leucaena leucocephala, Andropogon gayanus, Panicum maximum y Brachiaria spp. (Herbage Abstracts-CIAT)


International Center for Tropical Agriculture[Forage improvement]Forage improvement

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