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This paper explores the potential for, and limits to, sustainable agricultural growth in semi-arid Africa, with a focus on the role of pastoralism. Examines the main pressures on pastoral systems, and on the resource base upon which these depend. The paper argues that it is premature to contempla...


Webb, P.Bisrat, G.Coppock, D.L.[Food security and sustainable growth for pastoral systems in semi-arid Africa]Food security and sustainable growth for pastoral systems in semi-arid Africa
Ayele, G.Jabbar, M.A.Zerfu, E.[Diffussion and adoption of Vertisols technology package in highland Ethiopia]Diffussion and adoption of Vertisols technology package in highland Ethiopia

Presents the concept and procedure followed to develop an appropriate technology to increase productivity on Vertisols (heavy clay soils) in Ethiopia. Describes the Vertisol farming systems in the Ethiopian highlands and discusses the on-farm technology validation process. Examines yields of majo...


Asamenew, G.Mohamed-Saleem, M.A.[Concepts and procedures for the Development of improved Vertisol technology Development in Ethiopia]Concepts and procedures for the Development of improved Vertisol technology Development in Ethiopia
Mwangi, D.M.Graham, S.P.Pelle, RogerHonda, Y.Tonukari, N.J.Yamage, I.M.Glew, E.J.Villiers, Etienne P. deShah, TushaarBishop, Richard P.Abuya, E.Awino, EliasGachanja, J.Luyai, A.E.Mbwika, F.Muthiani, A.M.Ndegwa, D.M.Njahira, Moses N.Nyanjui, J.K.Onono, F.O.Osaso, J.Saya, R.M.Wildmann, C.Fraser, C.M.Maudlin, I.Gardner, M.J.Morzaria, S.P.Loosmore, S.Gilbert, S.C.Audonnet, J.C.Bruggen, P. van derNene, VishvanathTaracha, E.L.N.[Exploiting host immunity and parasite genomics to develop a robust sub-unit vaccine against East Coast fever in cattle - Where are we?]Exploiting host immunity and parasite genomics to develop a robust sub-unit vaccine against East Coast fever in cattle - Where are we?

The paper first discusses the need for moving from disciplinary to transdisciplinary research in addressing problems of human Development and environmental management. Then the experience of a research project in highland Ethiopia that started with disciplinary research and component technologies...


Jabbar, M.A.Mohamed-Saleem, M.A.Li Pun, H.H.[From component technology to integrated resource management: Evolution toward trandisciplinary research in a project in Ethiopia]From component technology to integrated resource management: Evolution toward trandisciplinary research in a project in Ethiopia

Discusses intermediate technology for increased food and feed production from deep black clay soils (vertisols) in the Ethiopian highlands. Presents examples of improved soil/water/nutrient management on vertisols discussing tillage and animal powered surface drainage and its effect on crop yield...


Jutzi, S.C.Asamenew, G.Tedla, A.Astatke, A.[Intermediate technology for increased food and feed production from deep black clay soils in the Ethiopian highlands]Intermediate technology for increased food and feed production from deep black clay soils in the Ethiopian highlands
Autor: Okali, C.

Highlights the relationship between types of technology and the involvement of different categories of producers in the Development process. Emphasizes the need to base improvements or changes on existing systems where small livestock/farm systems are the focus. Suggests that non-governmental org...


Okali, C.[Issues in the design of technology and projects for livestock producers in Africa]Issues in the design of technology and projects for livestock producers in Africa
Autor: Weise, S.F.

The participants at the Yaounde Roundtable in June 1999 concluded that research and technology transfer is a critical component of a regional Sustainable Tree Crops Program (STCP). Productivity enhancing and environmentally friendly technology will be critical to both the supply of tree crop prod...


Weise, S.F.[A conceptual framework for research and technology transfer to support sustainable tree crop development]A conceptual framework for research and technology transfer to support sustainable tree crop development

New and alternative nutritious breads, can be produced from cassava flour fortified with 20% raw or roasted soy flour using locally available margarine with egg white, together or without xanthan gum. Margarine with egg white, increased control loaf volumes by 29%; the subsequent addition of xant...


Eggleston, G.Omoaka, P.[Alternative breads from cassava flour]Alternative breads from cassava flour

Rivas Ríos, Libardo[Análisis económico en investigación en fincas modelos microeconómicos]Análisis económico en investigación en fincas modelos microeconómicos

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