Area and food crop surveys.
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| Format: | Texto biblioteca |
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1963
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| Subjects: | ST AGS AF, FARM AREA, FOOD CROPS, SURVEYS, METHODS, SAMPLING, DATA COLLECTION, FARMS, YIELDS, MOWING, WORKERS, SURFACE D'EXPLOITATION, PLANTE ALIMENTAIRE, SUPERFICIE DE LA EXPLOTACION, CULTIVOS ALIMENTICIOS, ENQUETE, METHODE, ECHANTILLONNAGE, COLLECTE DE DONNEES, EXPLOITATION AGRICOLE, RENDEMENT, FAUCHAGE, TRAVAILLEUR, ENCUESTAS, METODOS, MUESTREO, RECOLECCION DE DATOS, EXPLOTACIONES AGRARIAS, RENDIMIENTO, SIEGA, OBREROS, |
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