Crop production levels in agricultural development.
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| Format: | Texto biblioteca |
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1962
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| Subjects: | AGRICULTURAL DEVELOPMENT, PLANT PRODUCTION, FERTILIZERS, YIELDS, CULTURAL METHODS, DEVELOPPEMENT AGRICOLE, PRODUCTION VEGETALE, DESARROLLO AGRICOLA, PRODUCCION VEGETAL, ENGRAIS, RENDEMENT, MODE DE CULTURE, ABONOS, RENDIMIENTO, METODOS DE CULTIVO, |
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