Effect of nitrogen and phosphorus on growth and seed yield of French bean (Phaseolus vulgaris L.)

A study was undertaken at Faizabad during 1995-96 and 1996-97 to find out the optimum and economical dose of nitrogen and phosphorus for better growth and seed yield of French bean. Plant height, number of branches and length of pod increase with successive increase in the doses of Nitrogen as well as phosphorus. Application of 120 kg N/ha produced significantly higher number of pods/plant, weight of seeds/plant, number of seeds/pod and seed yield, whereas 160 kg N/a significantly reduced the seed yield. The maximum values on the above yield attributes where recorded with 60 kg. The combination of 120 kg N+60 kg P2O5/ha along with 60 kg P2O/ha gave maximum seed yield, net profit and net return per rupee investment and it was closely followed by 120 kg N+40 kg P2O5/ha.