Sustaining soil fertility in West Africa : proceedings of a symposium sponsored by Divisions S-4, S-8, and A-6 of the Soil Science Society of America and the American Society of Agronomy : the papers were presented during the annual meeting in Minneapolis, Minnesota, 5-9 November, 2000

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Symposium on Sustaining Soil Fertility in West Africa (2000 : Minneapolis, Minnesota)

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