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Soil and water management systems for two selected regions of the Jos Plateau, NigeriaOgunlana, Francis Afolabi. January 1977 (has links)
Thesis--Wisconsin. / Includes bibliographical references (leaves 103-107).
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Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid EthiopiaLeye, Melesse Temesgen, January 1900 (has links)
Thesis (doctoral)--Delft University of Technology, 2007. / Vita. Includes bibliographical references (p. [99]-110).
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Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid EthiopiaLeye, Melesse Temesgen, January 1900 (has links)
Thesis (doctoral)--Delft University of Technology, 2007. / Vita. Includes bibliographical references (p. [99]-110).
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Economics of soil and water conservation : theory and empirical application to subsistence farming in the Eastern Ethiopian highlands /Bekele, Wagayehu, January 2003 (has links) (PDF)
Diss. (sammanfattning). Uppsala : Sveriges lantbruksuniv., 2003. / Härtill 4 uppsatser.
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Economics of soil and water conservation : theory and empirical application to subsistence farming in the Eastern Ethiopian highlands /Bekele, Wagayehu, January 2003 (has links) (PDF)
Diss. (sammanfattning). Uppsala : Sveriges lantbruksuniv., 2003. / Härtill 4 uppsatser.
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Economics of soil and water conservation in irrigated and dry lands agricultureZaikin, Andrey, January 2006 (has links) (PDF)
Thesis (M.A. in agricultural economics)--Washington State University, August 2006. / Includes bibliographical references.
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