Improving crop production with fertilizers in East Africa.
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| Format: | Texto biblioteca |
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1968
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| Subjects: | FOOD CROPS, CASH CROPS, FERTILIZER APPLICATION, RESEARCH, SOIL MANAGEMENT, PLANT PRODUCTION, AFRICA, PLANTE ALIMENTAIRE, CULTURE DE RAPPORT, FERTILISATION, RECHERCHE, CULTIVOS ALIMENTICIOS, CULTIVOS COMERCIALES, APLICACION DE ABONOS, INVESTIGACION, GESTION DU SOL, PRODUCTION VEGETALE, AFRIQUE, MANEJO DEL SUELO, PRODUCCION VEGETAL, |
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