In the Sahel of West Africa, the productivities of rangelands, croplands and livestock are inextricably linked. Cattle, sheep and goats graze rangelands and crop residues, and their manure/urine is used to fertilize crops. Rangelands provide important feeds during the manuring period, resulting i...
Powell, J.M.
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Fernández Rivera, S.
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Hiernaux, Pierre H.Y.
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Turner, M.D.
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[Nutrient cycling in integrated rangeland/cropland systems of the Sahel]
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Nutrient cycling in integrated rangeland/cropland systems of the Sahel
Investigates Nitrogen and Phosphorus transfers in a crop - livestock system in the subhumid zone of Nigeria. Estimates N and P removed from cropland during crop residue grazing and returned to the land through manure, and the contribution crop residues make to cattle diet during the dry season.
Powell, J.M.
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Mohamed-Saleem, M.A.
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[Nitrogen and phosphorus transfers in a crop-livestock system in West Africa]
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Nitrogen and phosphorus transfers in a crop-livestock system in West Africa
Animal manure is of vital importance to soil-fertility maintenance in semi-arid West Africa due to its intrinsic value as a soil amendment and because of the low level of inorganic fertiliser use. This paper provides a regional overview of manure utilisation for food crop production. Results of e...
Williams, Timothy O.
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Powell, J.M.
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Fernández Rivera, S.
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[Manure utilisation, drought cycles and herd dynamics in the Sahel: implications for cropland productivity]
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Manure utilisation, drought cycles and herd dynamics in the Sahel: implications for cropland productivity