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Whittome, M.P.Spencer, D.Bayliss-Smith, T.[IITA and ILCA onfarm alley farming research: lessons for extension workers]IITA and ILCA onfarm alley farming research: lessons for extension workers
Tamene, L.Yaekob, T.Mekonnen, K.Woldearegay, K.Adimassu, ZenebeEllison, J.Gurmessa, B.Alene, T.Dubale, W.Kassie, G.Thorne, Peter J.[Landscape management: Africa RISING project R4D experiences in the Ethiopian highlands]Landscape management: Africa RISING project R4D experiences in the Ethiopian highlands

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
Autor: Smith, J.

A meeting was held of social scientists from the International Agriculture Research Centers (IARCs) of the Consultative Group on International Agricultural Research (CGIAR), at the International Service for National Agricultural Research (ISNAR) in the Hague, Netherlands, in August 1992. The meet...


Smith, J.[New challenge confronting social scientists in IARCs with ecoregional mandates]New challenge confronting social scientists in IARCs with ecoregional mandates

In view of the considerable potential for increasing food production through the generation and use of new agricultural technology, many developing countries have invested in agricultural research and extension. However, the issue of whether he intended production gains from new technologies hav...


Alene, Arega D.[Unexploited yield and profitability potentials of improved varietal technologies: the case of hybrid maize in Western Ethiopia]Unexploited yield and profitability potentials of improved varietal technologies: the case of hybrid maize in Western Ethiopia
Tamene, L.Yaekob, T.Mekonnen, K.Woldearegay, K.Adimassu, ZenebeEllison, J.Gurmessa, B.Alene, T.Dubale, W.Kassie, G.Thorne, Peter J.[Landscape management: Africa RISING [Research in Sustainable Intensification for the Next Generation] project R4D experiences in the Ethiopian highlands]Landscape management: Africa RISING [Research in Sustainable Intensification for the Next Generation] project R4D experiences in the Ethiopian highlands

This chapter summarises the experience of a research project for developing and disseminating technologies for better management of Vertisols for improving productivity. Topics of discussion include Vertisol technology Development and testing in Ethiopia; the adoption pathways for the BBM package...


Jabbar, M.A.Mamo, T.Mohamed-Saleem, M.A.[From plot to watershed management: Experience in farmer participatory Vertisol technology generation and adoption in highland Ethiopia]From plot to watershed management: Experience in farmer participatory Vertisol technology generation and adoption in highland Ethiopia

The study used a stochastic metafrontier model followed by a Tobit regression model to estimate technical efficiency and meta-technology ratios and assess factors influencing efficiency of a suite of beef farm types in Botswana. Results show that the average technical efficiency level is 0.496 fo...


Bahta, Sirak T.Baker, DerekMalope, P.Katjiuongua, H.[A metafrontier analysis of determinants of technical efficiency in beef farm types: An application to Botswana]A metafrontier analysis of determinants of technical efficiency in beef farm types: An application to Botswana

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