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Mineral fertilizer use in land-scarce conditions: Case of Rwanda von Mugabo, Josaphat Rusisiro, Tollens, Eric, Chianu, Jonas Nwankwo, Vanlauwe, Bernard

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Integrated nutrient management in the farming systems of the savannas of northern Nigeria: what future? von Chianu, J.N, Tsujii, H

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Agriculture in the savannas of northern Nigeria: pressures, transformations, damage and coping strategies von Chianu, J.N, Tsujii, H, Kormawa, P

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