Browsing Investigación by Title
Now showing items 2349-2368 of 7437
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Early genetic variation of 16 provenance of Acacia mangium in Turrialba, Costa Rica
(IUFRO, Pattaya (Tailandia), 1989) -
Ecofisiología del cacao (Theobroma cacao): su manejo en el sistema agroforestal. Sugerencias para su mejoramiento en Venezuela
(CATIE, Turrialba (Costa Rica), 2008) -
ecological
(2015-11-03)Crop pest and disease incidences at plot scale vary as a result of landscape effects. Two main effects can be distinguished. First, landscape context provides habitats of variable quality for pests, pathogens, and beneficial ... -
Ecological approaches to human nutrition
(2015-01-22)Background. Malnutrition affects a large number of people throughout the developing world. Approaches to reducing malnutrition rarely focus on ecology and agriculture to simultaneously improve human nutrition and environmental ... -
Ecological approaches to human nutrition
(2013-06-17)Malnutrition affects a large number of people throughout the developing world. Approaches to reducing malnutrition rarely focus on ecology and agriculture to simultaneously improve human nutrition and environmental ... -
Ecological knowledge of regeneration from seed in neotropical forest trees: implications for natural forest management
(CATIE, Turrialba (Costa Rica), 1998) -
Ecological structure and carbon storage in traditional silvopastoral systems in Nicaragua
(SpringerLink, 2018) -
Ecología de Dermatobia hominis L. JR. 1781 (Diptera:Cuterebridae) na regiao de Sao Carlos, Estado de Sao Paulo, Brasil
(Instituto Interamericano de Cooperación para la Agricultura (IICA), San José (Costa Rica), 1991-07)Larvas de Dermatobia hominis foram expostas, em condicoes naturais, para estudo da fase de vida livre, em caixas medindo 0.50 m x 0.20 m, suspensas a 0.70 m de altura, contendo solo, mantida com cobertura viva de grama ... -
Ecología de Formicidae en plantaciones de cacao en Barlovento, Venezuela
(CATIE, Turrialba (Costa Rica), 1986)The ant species present on 800 cacao (Theobroma cacao L.) plants, distributed in 50 different plots in Barlovento, State of Miranda were studied. Using the Pearson's multiple correlation procedure correlations between the ... -
Ecología de la polilla del repollo Plutella xylostella (L) (Lepidoptera: Plutellidae). II. Ciclo de vida
(1986-01)El ciclo de vida de la polilla del repollo, Plutella xylostella (L.) (Lepidoptera: Plutellidae), se estudió bajo temperatura constante (20+- 1 grado Centígrado) y con 16 horas de luz (08.00 a 24.00) por día proveniente de ... -
Ecología de las semillas y las plántulas e Carapa guianensis
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-10)Carapa guianensis (Meliaceae) es una especie arbórea sub-dominante del bosque superhúmedo maduro del noreste de Costa Rica. Los árboles florecen en setiembre y producen frutos maduros el siguiente mes de mayo. La libación ... -
Ecology and behaviour of Plutella xylostella IV. Fecundity with and without host plant
(Instituto Interamericano de Cooperación para la Agricultura (IICA), San José (Costa Rica), 1991-07)Los adultos de Plutella xylostella (L.) ponen diferente número de huevos en la presencia o en la ausencia de la planta hospedadora. Se llevaron a cabo experimentos en cuartos de ambiente controlado (20°C, 16 horas luz por ... -
Ecology and management of tropical secondary forest: science, people, and policy. Proceedings
(CATIE, Turrialba (Costa Rica). IUFRO, Viena (Austria) CIFOR, Bogor (Indonesia). WWF, Gland (Suiza) GTZ, Eschborn (Alemania), 1998)Secondary forests developing on agricultural land after it is abandoned, or as the fallow period in systems of subsistence agriculture, are an increasingly important component of the forest resources of the tropics. They ... -
Economic and environmental sustainability trade-offs in cattle farming: application to tropical Costa Rica
(Research Program on Sustainability in Agriculture-REPOSA, Guápiles (Costa Rica), Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Turrialba (Costa Rica) Agricultural University Wageningen, Wageningen (Países Bajos) Ministerio de Agricultura y Ganadería, San José (Costa Rica), 1998) -
Economic and institutional analyses of soil conservation projects in Central America and the Caribbean
(World Bank, Washington, D. C. (USA), 1994)This study is a pioneering effort in the economic analysis of returns to soil conservation projects in Honduras. As such, it attempts to generate basic information for evaluating similar projects in the future and to give ... -
Economic constraints as drivers of coffee rust epidemics in Nicaragua
(Elsevier, Ámsterdam (Países Bajos), 2020)Coffee rust (Hemileia vastatrix) epidemics of an intensity never seen before have hit Central America since 2012. This study set out to identify management and socio-economic factors that facilitate coffee rust development ... -
Economic constraints as drivers of coffee rust epidemics in Nicaragua
(Elsevier, Ámsterdam, Países Bajos, 2020-10)Coffee rust (Hemileia vastatrix) epidemics of an intensity never seen before have hit Central America since 2012. This study set out to identify management and socio-economic factors that facilitate coffee rust development ... -
Economic cost-effectiveness an important criterion in IPM
(CATIE, Managua (Nicaragua), 2004) -
Economic data taking and practical analysis in agroforestry systems
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Turrialba (Costa Rica). Dept. de Recursos Naturales Renovables, 1984)
