Need for applied crop protection research in the Sudanian zone.
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| Format: | Texto biblioteca |
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1969
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| Subjects: | RU AER, CROPS, PLANT PROTECTION, RESEARCH, AGRICULTURAL DEVELOPMENT, AFRICA SOUTH OF SAHARA, PLANTE DE CULTURE, PROTECTION DES PLANTES, RECHERCHE, CULTIVOS, PROTECCION DE LAS PLANTAS, INVESTIGACION, DEVELOPPEMENT AGRICOLE, AFRIQUE AU SUD DU SAHARA, DESARROLLO AGRICOLA, AFRICA AL SUR DEL SAHARA, |
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