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The decomposition and nutrient release of 12 plant materials were assessed in a 20-week litterbag field study in hillsides from Cauca, Colombia. Leaves of Tithonia diversifolia (TTH) and Indigofera constricta (IND) decomposed quickly (k=0.035±0.002 d?1), while those of Cratylia argentea (CRA) and...


Cobo Borrero, Juan G.Barrios, E.Kass, DCLThomas, Richard J.[Decomposition and nutrient release by green manures in a tropical hillside agroecosystem]Decomposition and nutrient release by green manures in a tropical hillside agroecosystem
Barrios, EdmundoCobo Borrero, Juan G.Rao, Idupulapati M.Thomas, Richard J.Amézquita Collazos, EdgarJiménez Jaén, Juan JoséRondón, Marco Antonio[Fallow management for soil fertility recovery in tropical Andean agroecosystems in Colombia]Fallow management for soil fertility recovery in tropical Andean agroecosystems in Colombia
Fisher, Myles J.Rao, Idupulapati M.Ayarza, Miguel AngelLascano, Carlos E.Sanz Scovino, José IgnacioThomas, Richard J.Vera, Raúl R.[Carbon storage by introduced deep-rooted grasses in the South American savannas]Carbon storage by introduced deep-rooted grasses in the South American savannas

The structure and seasonal changes of earthworm communities were evaluated in a natural savanna and in a improved grass-legume pasture in a Colombian oxisol over a period of 18 months. One plot of 90×90 m was isolated in each of the systems and each month five samples of 1 m2×0.5 m and ten of 20×...


Jiménez Jaén, J.J.Moreno, AlonsoDecaëns, ThibaudLavelle, Patrick M.Fisher, Myles J.Thomas, Richard J.[Earthworm communities in native savannas and man-made pastures of the Eastern Plains of Colombia]Earthworm communities in native savannas and man-made pastures of the Eastern Plains of Colombia
Friesen, Dennis K.Rao, Idupulapati M.Thomas, Richard J.Oberson, AstridSanz Scovino, José Ignacio[Adquisición y reciclaje de fósforo en sistemas de cultivos y pasturas en suelos tropicales de baja fertilidad]Adquisición y reciclaje de fósforo en sistemas de cultivos y pasturas en suelos tropicales de baja fertilidad
Friesen, Dennis K.Thomas, Richard J.Rivera, M.Asakawa, N.Bowen, W.[Dinámicas de nitrógeno en monocultivos y cultivos en rotación en oxisoles de los Llanos Orientales de Colombia]Dinámicas de nitrógeno en monocultivos y cultivos en rotación en oxisoles de los Llanos Orientales de Colombia

In this study, we investigated the spatial distribution of an earthworm community together with the heterogeneity of selected soil properties in a gallery forest (GF) of the Colombian Llanos . We performed fine-scale spatial variability by intensively sampling 100 points distributed in the nodes...


Jiménez, J.J.Decaëns, ThibaudAmézquita Collazos, EdgarRao, Idupulapati M.Thomas, Richard J.Lavelle, Patrick M.[Short range spatial variability of soil physico-chemical variables related to earthworm clustering in a Neotropical gallery forest]Short range spatial variability of soil physico-chemical variables related to earthworm clustering in a Neotropical gallery forest
Amézquita Collazos, EdgarAshby, J.A.Knapp, E.K.Thomas, Richard J.Müller-Sämann, Karl M.Ravnborg, Helle MunkBeltrán Giraldo, Jorge AlonsoSanz Scovino, José IgnacioRao, Idupulapati M.Barrios, Edmundo[CIAT's strategic research for sustainable land management on the steep hillsides of Latin America]CIAT's strategic research for sustainable land management on the steep hillsides of Latin America
Fisher, Myles J.Rao, Idupulapati M.Thomas, Richard J.Lascano, Carlos E.[Grasslands in the well-watered tropical lowlands]Grasslands in the well-watered tropical lowlands
Fisher, Myles J.Thomas, Richard J.Rao, Idupulapati M.[Management of tropical pastures in acid-soil savannas of South America for carbon sequestration in the soil]Management of tropical pastures in acid-soil savannas of South America for carbon sequestration in the soil

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