Green Global
Foundation   Journal
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EFFECT OF NITROGEN AND PHOSPHORUS ON THE GROWTH AND YIELD OF FRENCH BEAN (Pages : 30 - 34)

A field experiment on French bean was conducted in Old Brahmaputra Floodplain Soil of Jamalpur and Grey Terrace Soil of Joydebpur during 2005-2006 to find out the optimum rates of N and P for yield maximization of French bean. Four levels of nitrogen (0, 100, 150 and 200 kg ha-1 ) and 3 levels of phosphorus (0, 40 and 60 kg ha-1 ) were used in the experiment. Potassium (K) 80 kg, 10 kg sulphur (S) and 5 t cowdung ha-1 were applied as a blanket dose. The experiment was laid out in a randomized complete block design with 12 treatments replicated 4 times. Nitrogen and phosphorus alone significantly influenced the pod yield of French bean. Among the N levels, the highest pod yield (13.33 t ha-1 at Jamalpur & 14.68 t ha-1 at Joydebpur) were obtained with 150 kg N ha-1 . Among the P levels, the highest pod yield (12.35 t ha- 1 at Jamalpur & 13.69 t ha-1 at Joydebpur) were obtained with 60 kg P ha-1 . Interaction effect was not significant. However, highest pod yield (13.60 t ha-1 at Jamalpur & 15.05 t ha-1 at Joydebpur) was obtained from 150 kg N plus 60 kg P ha-1 . Economic analysis showed that 150 kg N plus 40 kg P ha-1 gave the highest gross margin of Tk. 1,66,684/ha. Download