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The results are given of physicochemical analyses of soils and estimated cassava yields for five production zones in Colombia. There was little correlation between yield and the factors studied. Yields tended to increase as P increased; and there was a positive response to K in 2 zones and Ca/Mg ...


Díaz Duque, R.O.Howeler, Reinhardt H.Varon R, U[Evaluacion de los analisis de suelos de las zonas productoras de yuca en Colombia]Evaluacion de los analisis de suelos de las zonas productoras de yuca en Colombia
Autor: Kawano, K

Feasible overall goals for cassava breeding in Asia are proposed on the basis of current national cassava breeding programs, achievements, and cassava demand in the following Asian Countries: Thailand, Philippines, China, Malaysia, Indonesia, India, and Vietnam. CIAT germplasm that has been selec...


Kawano, K[Potential for cassava breeding in Asia]Potential for cassava breeding in Asia

Agricultural research in developing countries has lacked relevance to farm-level production problems, especially appropriate technologies for small-scale or limited-resource farmers. Currently research institutions are directing their efforts towards these objectives. This paper is a preliminary ...


Lynam, John K.Sanders, J.H.[The role of economists in on-farm testing in agricultural research]The role of economists in on-farm testing in agricultural research

Two trials were conducted at the CIAT expt station in Cali, Colombia, to measure the effect of spatial arrangement at fixed planting densities on cassava root yield. In expt I, 3 cassava cv. of different growth habit were planted at 10,000 plants/ha and arranged in 5 different patterns. Experimen...


Castro Merino, A.[Efecto del arreglo espacial de siembra en el rendimiento de las raices de yuca (Manihot esculenta)]Efecto del arreglo espacial de siembra en el rendimiento de las raices de yuca (Manihot esculenta)

However, the distribution of these benefits among consumers and producers greatly varies according to the assumptions made for the type of economy (open or closed). The scenario with a closed economy reveals that the brunt of the benefits (86%) go to consumers; in contrast, in a partially opened ...


Sanint, Luis RobertoRivas Ríos, Libardo[Tecnologías de mejoramiento de germoplasma que benefician al consumidor: los casos de ganadería vacuna y arroz en América Latina y el Caribe]Tecnologías de mejoramiento de germoplasma que benefician al consumidor: los casos de ganadería vacuna y arroz en América Latina y el Caribe

Debouck, Daniel G.[Operación retorno hacia el Eoceno: dónde están los recursos fitogenéticos?]Operación retorno hacia el Eoceno: dónde están los recursos fitogenéticos?

In 1976 expt. were conducted on var. trials, fertilization, insecticides, and herbicides in order to identify new technology that could be introduced into small- and intermediate-scale bean production in Honduras. Factors of a complete technological package were also discarded to identify the mos...


Alvarado, LSanders, J.H.[Analisis economico de los experimentos de PROMYF con frijol en postrera, Honduras 1976]Analisis economico de los experimentos de PROMYF con frijol en postrera, Honduras 1976
Autor: Maitre, A

Anthropological work carried out by the PROFRIZA project in Cusco over 2 cropping seasons, between 1988-90, are reported. The status of bean cultivation in the region was assessed, as well as the experience acquired in seed production, small farmer management of farming activities, and the integr...


Maitre, A[Proyecto Frijol Zona Andina: Antropologia: Informe final]Proyecto Frijol Zona Andina: Antropologia: Informe final

Davidson, B.R.[Economic aspects of small scale ranching on improved pastures in the Colombian Llanos]Economic aspects of small scale ranching on improved pastures in the Colombian Llanos

International Center for Tropical Agriculture[Arresting resource degradation in the forest margins of Amazonia: economic and policy analysis of agricultural land use]Arresting resource degradation in the forest margins of Amazonia: economic and policy analysis of agricultural land use

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