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La investigación se realizó en el CIAT, en la Granja de CIAT en Darién y fincas de agricultores del mismo municipio departamento del Valle, entre 1989 y 1991. El análisis de varianza para rendimiento de grano en las generaciones 2 y F6, mostró amplia interacción genotipo x ambiente. En general hu...


Beltrán Giraldo, Jorge AlonsoBaena Garcia, DKornegay, Julia L.[Evaluación de generaciones segregantes de fríjol Phaseolus vulgaris L. en campos de agricultores en contraste a la realizada en estación experimental]Evaluación de generaciones segregantes de fríjol Phaseolus vulgaris L. en campos de agricultores en contraste a la realizada en estación experimental

The increasing attention paid to local soil knowledge in recent years is the result of a greater recognition that the knowledge of people who have been interacting with their soils for long time can offer many insights about the sustainable management of tropical soils. This paper describes two a...


Barrios, E.Trejo Tercero, M.T.[Implications of local soil knowledge for integrated soil management in Latin America]Implications of local soil knowledge for integrated soil management in Latin America
Marichal, RaphaëlMartínez, A.F.Praxedes, CRuiz, DCarvajal, A.F.Oszwald, JohanHurtado, MPBrown, George G.Grimaldi, MichaelDesjardins, ThierrySarrazin, MDecaëns, ThibaudVelásquez, E.Lavelle, Patrick M.[Invasion of Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta) in landscapes of the Amazonian deforestation arc]Invasion of Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta) in landscapes of the Amazonian deforestation arc

Beans and bananas were grown in sole crop and intercrop systems for three seasons in 1989 and 1990 to determine the effects of cropping system on diseases, insects and land-use efficiency and the roles of certain bean plant physiological traits on bean yield in the two systems. Bean yield in the ...


Wortmann, Charles S.Sengooba, TNKKyamanywa, S.[Banana and bean intercropping: factors affecting bean yield and land use efficiency]Banana and bean intercropping: factors affecting bean yield and land use efficiency
Rivera, M.Polanía Perdomo, José A.Borrero, GonzaloBeebe, Stephen E.Rao, Idupulapati M.[Efecto de la compactación de suelo en características morfo-fisiológicas de fríjol comun]Efecto de la compactación de suelo en características morfo-fisiológicas de fríjol comun
Ndung'u-Magiroi, Keziah WairimuWaswa, Boaz S.Bationo, B. AndréOkalebo, John RobertOthieno, CalebHerrmann, LaetitiaLesueur, Didier[Minjingu phosphate rock applications increase the population of phosphate solubilising microorganisms with a positive impact on crop yields in a Kenyan Ferralsol]Minjingu phosphate rock applications increase the population of phosphate solubilising microorganisms with a positive impact on crop yields in a Kenyan Ferralsol

Soil samples were collected from 8 land use types in Embu to study the effects of land use on soil chemical and physical parameters and on the occurrence of Trichoderma spp. The fungus was recovered from the soil using the dilution plate and soil washing technique. The remaining soil samples were...


Okoth, Sheila A.Okoth, Peter F.Muya, EA[Influence of soil chemical and physical properties on occurrence of Trichoderma spp. in Embu, Kenya = Influencia de las propiedades químicas y físicas del suelo sobre la ocurrencia de Trichoderma spp. en Embu, Kenia]Influence of soil chemical and physical properties on occurrence of Trichoderma spp. in Embu, Kenya = Influencia de las propiedades químicas y físicas del suelo sobre la ocurrencia de Trichoderma spp. en Embu, Kenia

Near infrared reflectance spectroscopy (NIRS) analysis was used to discriminate soils of different agroecosystems in Colombia, with different contents and qualities of organic matter, chemical, and biological properties. Correlations were sought between absorbance in wavelength classes as determ...


Velásquez, E.Lavelle, Patrick M.Barrios, E.Joffre, RReversat, F[Evaluating soil quality in tropical agroecosystems of Colombia using NIRS]Evaluating soil quality in tropical agroecosystems of Colombia using NIRS

This study evaluated the effects of improved tropical grass and grass–legume pastures on the physical condition of an oxisol, previously covered by native savanna. Two long-term pasture experiments with different grass and legume species and with different stocking rates were used. Measurements w...


Gijsman, AJThomas, Richard J.[Evaluation of some physical properties of an oxisol after conversion of native savanna into legume-based or pure grass pastures]Evaluation of some physical properties of an oxisol after conversion of native savanna into legume-based or pure grass pastures

Rangelands occupy 25% of the total land surface globally. In Africa, rangelands are estimated to cover 66% of the land surface, although there are variations from country to country. In Eastern Africa, for example, land surface coverage of rangeland areas varies from 44% in Uganda and 65% in Ethi...


Bolo, Peter OmondiSommer, RolfKihara, JobKinyua, MichaelNyawira, SylviaNotenbaert, An Maria Omer[Rangeland Degradation: Causes, Consequences, Monitoring Techniques and Remedies]Rangeland Degradation: Causes, Consequences, Monitoring Techniques and Remedies

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