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In the farming systems approach to technology development, trials are carried out on a limited number of farmers’ fields. Results of these trials are extrapolated to the entire target area and used either to identify directions for further research or to develop recommendations for farmers. Extra...


Smith, J.Walker, P.Oyewole, B.[Representativeness of farmers and sites in onfarm trials]Representativeness of farmers and sites in onfarm trials

Agriculture in the dry savannas is intensifying in response to increasing populations of humans and livestock. As a result, increased productivity demands are placed upon integrated crop-livestock systems and more emphasis is on the roles of legumes such as cowpea. Cowpea has the potential to fun...


Tarawali, Shirley A.Singh, B.B.Gupta, S.C.Tabo, RamadjitaHarris, F.Nokoe, S.Fernández Rivera, S.Bationo, B. AndréManyong, Victor M.Makinde, K.Odion, E.C.[Cowpea as a key factor for a new approach to integrated crop-livestock systems research in the dry savannas of West Africa]Cowpea as a key factor for a new approach to integrated crop-livestock systems research in the dry savannas of West Africa

This paper focuses on the background, approaches, and progress made over the last three years by the Crop-Animal Systems Research Network (CASREN) project carried out by ILRI in partnership with national agricultural research systems (NARS) in China, Indonesia, Philippines, Thailand and Vietnam. ...


Devendra, C.Pezo, Danilo A.[The crop-animal systems research network (CASREN)]The crop-animal systems research network (CASREN)

The livestock revolution presents new and expanding opportunities for smallholder livestock producers. The increasing demand for livestock products in South-East Asia presents expanding market opportunities for livestock producers, particularly for smallholders. The paper discusses how to link sm...


Ehui, Simeon K.Lapar, Ma. LucilaPaulos, Z.[Linking smallholders to emerging markets for livestock products: research and development opportunities]Linking smallholders to emerging markets for livestock products: research and development opportunities
Autor: Obordo, RA

The most outstanding results of research on cassava at the Centro Internacional de Agricultura Tropical (CIAT) are presented and the extent to which they can be transferred or used under conditions present in Asia and the Pacific area is indicated, in particular, on physiology, var. improvement, ...


Obordo, RA[The relevance of CIAT`s cassava researches in the Asian and Pacific Region]The relevance of CIAT`s cassava researches in the Asian and Pacific Region

Suggested objectives of the agricultural economics program at CIAT are to collaborate in the allocation of research resources, improve the economic efficiency of cassava production and marketing, estimate the overall socioeconomic consequences of the adoption of improved technology in production ...


Pinstrup-Andersen, Per[The role of CIAT in the international improvement of cassava: The agricultural economics input]The role of CIAT in the international improvement of cassava: The agricultural economics input
Autor: Obordo, RA

The objectives of the Centro Internacional de Agricultura Tropical (CIAT) are described in detail. The principal targets of the Outreach Program are then listed: (1) To provide a bridge between the international cassava centers and Asian countries so that the new technology can be evaluated, modi...


Obordo, RA[The role of the CIAT Outreach Program in the varietal improvement of cassava in the Philippines]The role of the CIAT Outreach Program in the varietal improvement of cassava in the Philippines

The low cassava yields obtained in L.A. at present are the result of a complex of problems: 1) deficient quality of planting material, which results in low sprouting, poor rooting and little initial vigor; 2) inadequate land preparation and planting systems; 3) control systems for pests and disea...


Leihner, D.E.Castro Merino, A.[Practicas sencillas para aumentar el rendimiento del cultivo de la yuca (Manihot esculenta Crantz)]Practicas sencillas para aumentar el rendimiento del cultivo de la yuca (Manihot esculenta Crantz)
Autor: Obordo, RA

The potential and status of root crop technology (potatoes, sweet potatoes, cassava, yams, cocoyams) in Asia are described. Cassava presents the best perspectives as a low-cost energy source. In the Philippines, a surface area of 119,300 and 117,970 ha was planted to cassava with yields of 5.7 an...


Obordo, RA[Root crops management technology]Root crops management technology

This paper presents a method for stratifying villages into Development domains using multivariate analysis of a broad community-based survey. The results from the analysis are used to draw conclusions in terms of policy implications. Topics of discussion include Development domains and policy imp...


Kruseman, Gideon K.Pender, J.L.Tesfay, G.Gebremedhin, Berhanu[Village stratification for policy analysis: Multiple development domains in the Ethiopian highlands]Village stratification for policy analysis: Multiple development domains in the Ethiopian highlands

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