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2. Bationo A. and Mokwunye A.U. 1991. Role of manures and crop residues in alleviating soil fertility constraints to crop production with special reference to the Sahelian zones of West Africa. Fertilizer Research 29: 125–177.
3. Bationo A. and Vlek P.L.G. 1998. The role of nitrogen fertilizers applied to food crops in the Sudano-Sahelian zone of West Africa. In: Renard G., Neef A., Becker K. and von Oppen M. (eds). Soil Fertility Management in West African Land Use Systems. Margraf Verlag, Weikersheim, Germany, pp. 41–51.
4. Bationo A., Buerkert A., Sedogo M.P., Christianson B.C. and A.U. 1995. A critical review of crop residue use as soil amendment in the West African Semi-Arid Tropics. In: Powell J.M., Fernandez-Rivera S., Williams T.O. and Renard C. (ds). Livestock and Sustainable Nutrient Cycling in Mixed Farming Systems of Sub-Saharan Africa, pp. 305–322. Volume 2: Technical Papers. Proceedings of an International Conference, 22–26 November 1993. International Livestock Centre for Africa (ILCA), Addis Ababa, Ethiopia.
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