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Farming systems research at IRRI - and the possibility of putting it into practice



Farming systems research at IRRI - and the possibility of putting it into practice



Entwickling und Landlicher Raum 19(6): 18-19



The divergence between rice yields obtained under experimental conditions and under farm conditions was studied in the Philippines with reference to the effects of N fertilizer on rice yields. During the rainy season increasing N rates from 0 to 116 kg N/ha increased rice yields under farm conditions, but the economic opt. fertilizer rate was 58 kg N/ha. This rate is generally recommended to farmers by the local agricultural advisory service.

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