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Autor: David, S.

This paper defines basic tenents of the participatory research approach in the context of agricultural technology development. It reviews CIAT`s experiences in Eastern Africa with involving farmers in bean research at three levels; research planning and implementation, varietal selection and seed...


David, S.[Farmer participation in bean research in Africa: experiences from the field]Farmer participation in bean research in Africa: experiences from the field
David, S.[Local bean seed systems in Uganda: preliminary results from surveys in two districts]Local bean seed systems in Uganda: preliminary results from surveys in two districts

Mbabu, A.N.Munyua, H.M.Mulongo, G.Mkumbira, J.David, S.[Facilitating learning and capacity strengthening: lessons from the reaching agents of change project in scaling up orange-fleshed sweetpotato (OFSP)]Facilitating learning and capacity strengthening: lessons from the reaching agents of change project in scaling up orange-fleshed sweetpotato (OFSP)
David, S.[Alternative approaches to bean seed production and distribution in Eastern and Southern Africa : Proceedings of a working group meeting, Kampala, Uganda, 10-13 October 1994]Alternative approaches to bean seed production and distribution in Eastern and Southern Africa : Proceedings of a working group meeting, Kampala, Uganda, 10-13 October 1994

This article addresses concerns of technology dissemination for small farmers, specifically focusing on the diffusion of new varieties of a self-pollinating crop. Based on bean seed systems research in Uganda, Rwanda, Burundi, and the Democratic Republic of Congo, it shows four commonly-held basi...


David, S.Sperling, L.[Improving technology delivery mechanisms: Lessons from bean seed systems research in eastern and central Africa]Improving technology delivery mechanisms: Lessons from bean seed systems research in eastern and central Africa

This paper presents empirical evidence to show how socioeconomic factors affect the adoption of and investment in agrochemicals in the cocoa sector of Côte d’Ivoire. The analysis uses primary farm-level data collected in 2002 from a nationally representative sample of more than one thousand cocoa...


Keho, Y.Gockowski, J.David, S.[Investing in agrochemicals in the cocoa sector of Côte d’Ivoire: hypotheses, evidence and policy implications]Investing in agrochemicals in the cocoa sector of Côte d’Ivoire: hypotheses, evidence and policy implications

A case study of Ghanaian cocoa farmer field schools was conducted to provide feedback on a regional effort to close the yield gap across the cocoa belt of West Africa. Production practices were significantly modified in the year following training with notable increases registered in both the nu...


Gockowski, J.Asamoah, C.David, S.Gyamfi, I.Adu-Kumi, M.[An evaluation of farmer field school induced changes in Ghanaian cocoa production]An evaluation of farmer field school induced changes in Ghanaian cocoa production

Farmers' lack of access to technical information constitutes a major obstacle to improving cocoa productivity in West and Central Africa. Recent debates on cocoa extension pay little attention to the potentially important role of printed extension materials for promoting cocoa integrated crop and...


David, S.Cobbah, E.A.[From our perspective: developing printed extension materials with cocoa farmers in Ghana]From our perspective: developing printed extension materials with cocoa farmers in Ghana

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