Growth and Yield Response of Bush Bean (Phaseolus vulgaris L.) as Influenced by Different Levels of Nitrogen and Phosphorus Application

The experiment was conducted at Horticulture Farm at Sher-e-Bangla Agricultural University, Bangladesh during the period December, 2014 to March 2015 to evaluate the effect of different levels of nitrogen and phosphorous on the growth and yield of bush bean. The two factor experiment was laid out in Randomized Complete Block Design with three replications. The treatment was comprised of two factors- Factor A: levels of nitrogen i) 0 kg/ha, ii) 20 kg/ha, iii) 40 kg/ha and Factor B: levels of phosphorous (P2O5) – i) 0 kg/ha, ii) 50 kg/ha, iii) 75 kg/ha, iv) 100 kg/ha. The results revealed that most of the growth and yield contributing parameters were significantly influenced by the different levels of nitrogen and phosphorous application. The maximum promotive effect on growth and yield of bush bean was associated with 40 kg N/ha and 75 kg P2O5/ha. Again their combined application enhanced maximum vegetative growth and with higher pod yield and seed yield. Therefore, application of 40 kg N/ha with 75 kg P2O5/ha can be conductive for bush bean cultivation in Bangladesh with higher yield.