A significant increase in the yield of straw, pods and seeds of field bean was obtained with the application of 150 kg/fed. as calcium superphosphate. The application of 25 and 50 kg/fed, as ammonium sulphate increased the yield equally. The combined application of 150 kg. calcium superphosphate plus 50 kg. ammonium sulphate per fed. improved the field bean seed yield significantly.
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