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    Start Over You searched for: Publication Year 1988 Remove constraint Publication Year: 1988 Subject Term farming systems research Remove constraint Subject Term: farming systems research Subject Term sustainability Remove constraint Subject Term: sustainability

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    21. Some relevant features and considerations of farming systems research and extension: policy and practice in South Africa

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    22. The contribution of Pakhribas Agricultural Center to the development of farming systems in the eastern hills of Nepal

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    23. U.S. versus Third World research and extension institutions: their effect on farming systems methodology

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    24. Vignettes of core, operational, and generic constraints in A.I.D.-funded farming systems research and extension projects

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    25. Zambia Agricultural Development Research & Extension Project

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    26. the role of farmer testing groups in research and extension: some experiences in Botswana

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