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1Biological nitrogen fixation and sustainability of tropical agriculture. Proceedings of the fourth International conference of the African Association for Biological Nitrogen Fixat... Biological nitrogen fixation and sustainability of tropical agriculture. Proceedings of the fourth International conference of the African Association for Biological Nitrogen Fixat...by Mulongoy, K. (ed.), African Association for Biological Nitrogen Fixation, Ibadan (Nigeria) eng, Gueye, M. (ed.), Spencer, D.S.C. (ed.)
Published 1992Texto bibliotecaFAO IT -
2Soil organic matter dynamics and sustainability of tropical agriculture Soil organic matter dynamics and sustainability of tropical agricultureby Mulongoy, K. (ed.), International Inst. of Tropical Agriculture, Ibadan (Nigeria) eng, Merckx, R. (ed.), Katholieke Univ. Leuven (Belgium). Lab. of Soil Fertility and Soil Biology oth
Published 1993Texto bibliotecaFAO IT