Lectures presented at the FAO/SIDA Regional Seminar on Shifting Cultivation and Soil Conservation in Africa, Ibadan, Nigeria, 2-21 Jul 1973
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1973
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Subjects: | FAO SIDA, SOIL CONSERVATION, SHIFTING CULTIVATION, RECLAMATION, PLANT PRODUCTION, CONSERVATION DES SOLS, CULTURE ITINERANTE, CONSERVACION DE SUELOS, CULTIVO MIGRATORIO, RECUPERATION DES SOLS, PRODUCTION VEGETALE, REHABILITACION DE TIERRAS, PRODUCCION VEGETAL, |
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