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Browsing by Authors Ugwu, B.O.

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Issue DateTitleAuthor(s)
1989Cost constraints on root and tuber crops production in yam based cropping system of South East NigeriaNeweke, F.I.; Ugwu, B.O.; Asadu, C.L.A.; Ezumah, H.C.
1989Efficiency of resource use in food crop production in major yam producing areas of Southeastern NigeriaUgwu, B.O.
1989Future of yam : a food systems analysis of yam in Eastern NigeriaNweke, F.I.; Asadu, C.L.A.; Ugwu, B.O.; Okorji, E.C.; Njoku, J.E.
1991Production costs in the yam based cropping systems of Southeastern NigeriaInternational Institute of Tropical Agriculture; Nweke, F.I.; Ugwu, B.O.; Asadu, C.L.A.; Ay, P.
1991Production costs in the yam based cropping systems of Southeastern NigeriaNweke, F.I.; Ugwu, B.O.; Asadu, C.L.A.; Ay, P.
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