Recherche
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Effects of Erythrina poeppigiana pruning residues on soil organic matter in organic coffee plantations
(CATIE, Turrialba (Costa Rica) University of Wales, Bangor (RU). School of Agricultural and Forest Sciences, 2005)
The effects of Erythrina poeppigiana pruning residue effects on soil organic matter were investigated with three different objectives. Firstly, to study the effects of proximity of this shade tree on soil characteristics ...
Distribution and foraging by the leaf-cutting ant, Atta cephalotes L., in coffee plantations with different types of management and landscape contexts, and alternatives to insecticides for its control
(CATIE, Turrialba (Costa Rica). Universidad de Idaho, ID (EUA), 2006)
Atta cephalotes L., the predominant leaf-cutting ant species found in coffee farMON in the Turrialba region of Costa Rica, is considered a pest of the crop because it removes coffee foliage. I applied agroecosystem and ...
Soil biogeochemical patterns in the Talamanca foothills, Costa Rica: local soil knowledge and implications for agroecosystems
(CATIE, Turrialba (Costa Rica) |
University of Idaho, Moscow, ID (EUA), 2008)
Los objetivos de esta investigación están resumidos en cuatro puntos: 1) Entender como los agricultores indígenas Cabécares en sus tres comunidades expresan sus conocimientos locales de suelos mediante la ubicación de sus ...
Characterization of the spatial variability of soil properties and coffee fine roots in shade tree-coffee associations under organic and conventional managment practices
(CATIE, Turrialba (Costa Rica), 2011)
Investigaciones en sistemas agroforestales han enfatizado que estudios sobre interacciones bajo el suelo son importantes para el entender el desarrollo y la distribución de raíces finas de cultivos y árboles asociados. Los ...
Emissions de gaz à effet de serre par le sol et stockage de carbone en caféiculture conduite sur des Andosols en climat tropical
(Université de Montpellier, Montpellier (Francia), 2008)
Coffee plantations represent 7.5% of the world’s permanent crops and generally use large amounts of N fertilizer (up to 350 kg N ha-1 y-1). Coffee is often grown under the shade of N fixing trees. The contribution of N ...
Bioeconomic models and agroforestry policy analysis applications to silvopastoral systems in Guanacaste, Costa Rica
(CATIE, Turrialba (Costa Rica), 2005)
El objetivo principal de la investigación fue analizar políticas que fomenten cobertura forestal en fincas ganaderas como una forma de mejorar la conservación de la biodiversidad y aumentar ingresos rurales. Se pueden ...
Assessing integrated watershed management and spatial groundwater vulnerability to pollution in priority watersheds of the Yacyretá dam in Paraguay
(CATIE, Turrialba (Costa Rica). University of Wales, Bangor (RU), 2010)
This case study research is based in the Watersheds of the Mboi Cae and Quiteria Rivers, and involves a) assessing the current state of knowledge of the watersheds b) an analysis to determine socio-environmental conflicts ...
Ecology and silviculture of long-lived pioneer timber species in a Bolivian tropical forest
(CATIE, Turrialba (Costa Rica), 2006)
En este trabajo se estudió la ecología y silvicultura de especies heliófitas maderables de larga vida en las parcelas del Proyecto de Investigación Silvicultural de Largo Plazo establecido en un bosque tropical semidecíduo ...