Physical and economic summary of trial and demonstration results, 1961/62 - 1966/67.
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Format: | Texto biblioteca |
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1969
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Subjects: | FFHC, EXTENSION ACTIVITIES, FERTILIZERS, TRIAL METHODS, YIELDS, COST BENEFIT ANALYSIS, VULGARISATION, ENGRAIS, EXTENSION, ABONOS, METHODE D'ESSAI, RENDEMENT, ANALYSE COUT AVANTAGE, METODOS DE ENSAYO, RENDIMIENTO, ANALISIS DE COSTOS Y BENEFICIOS, |
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