INFLUENCE OF NITROGEN AND PHOSPHORUS LEVEL FOR THE PERFORMANCE OF FRENCH BEAN (PHASEOLUS VULGARIS L.)

Abstract

The field experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from November 2017 to February 2018 in order to assess the effect of nitrogen and phosphorus levels and their interaction on the performance of French bean. The experiment consisted of four levels of nitrogen viz. 80, 100, 120, 140 kg nitrogen ha-1 and four levels of phosphorus viz. 15, 20, 25 and 35 kg phosphorus ha-1. The experiment was laid out in Randomized Complete Block Design with three replications. In case of nitrogen the highest plant height, branches plant-1, chlorophyll content, dry matter, number of effective pods plant-1, length of pod, 1000-grain weight, grain yield, stover yield, biological yield and harvest index were observed in 120 kg nitrogen ha-1. Considering yield attributes against phosphorus treatment the highest plant height, branches plant-1, chlorophyll content, dry matter, length of pod, 1000-seeds weight, grain yield, stover yield, biological yield and harvest index were observed in 25 kg phosphorus ha-1. In case of interaction effect the highest plant height, branch plant-1, chlorophyll content, dry matter, number of effective pods, length of pod, 1000-grain weight, grain yield, stover yield, biological yield and harvest index were observed in 120 kg nitrogen ha-1 and 25 kg phosphorus ha-1. The results obtained in experiment indicate that there is a scope to increase the yield of French bean by applying proper dose of nitrogen and phosphorus fertilizer.