The identification and improvement of farming systems through farm management investigations
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| Format: | Texto biblioteca |
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1971
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| Subjects: | ESR CAR, FARM MANAGEMENT, RESEARCH, CROPPING SYSTEMS, PRODUCTION, AFRICA SOUTH OF SAHARA, GESTION DE L'EXPLOITATION AGRICOLE, RECHERCHE, SYSTEME DE CULTURE, MANEJO DE FINCAS, INVESTIGACION, SISTEMAS DE CULTIVO, AFRIQUE AU SUD DU SAHARA, PRODUCCION, AFRICA AL SUR DEL SAHARA, |
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