Physical and economic summary of trial and demonstration results, 1961/62 - 1969/70
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| Format: | Texto biblioteca |
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1972
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| Subjects: | AGL FFHC FP, EXTENSION ACTIVITIES, FERTILIZERS, COST BENEFIT ANALYSIS, YIELDS, TRIAL METHODS, COST ANALYSIS, VULGARISATION, ENGRAIS, ANALYSE COUT AVANTAGE, EXTENSION, ABONOS, ANALISIS DE COSTOS Y BENEFICIOS, RENDEMENT, METHODE D'ESSAI, ANALYSE DES COUTS, RENDIMIENTO, METODOS DE ENSAYO, ANALISIS DE COSTOS, |
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