IMPACT OF BIOFERTILIZER, NITROGEN AND PHOSPHORUS ON NODULATION, GROWTH AND YIELD OF CHICKPEA

Abstract

An experiment was conducted during the period of November 2016 to April 2017 at Agronomy farm of Sher-e-Bangla Agricultural University Dhaka-1207, Bangladesh to evaluate the impact of nitrogen, phosphorus and biofertilizer on nodulation, growth and yield of chickpea. Treatment consisted of two levels of biofertilizer i.e. B0=without biofertilizer, B1= biofertilizer (80 g/1.2 kg seed); and six levels of fertilizer i.e. F0= all fertilizer (MoP=18 g/plot, Boric acid=5.4 g/plot) except N & P, F1=50% less N & P (urea=11.25 g/plot, TSP= 20.25g/plot, MoP==18 g/plot and boric acid=5.4g/plot), F2= 25% less N & P (urea=16.87 g/plot, TSP=30.37 g/plot, MoP=18 g/plot and boric acid=5.4 g/plot), F3= recommended dose of N & P with others (urea=22.5 g/plot, TSP=40.5 g/plot, MoP=18 g/plot and boric acid=5.4 g/plot), F4=25% higher N & P (urea=28.12 g/plot, TSP=50.62 g/plot, MoP=18 g/plot and boric acid=5.4 g/plot), F5= 50% higher N & P (urea=33.75 g/plot, TSP=60.75 g/plot, MoP=18 g/plot and 5.4 g/plot). The experiment was laid out in a spilt plot design with three replications. Result revealed that the highest values of vegetative growth i.e. plant height, number of branches plant -1 , plant dry weight, nodule number, nodule dry weight, and yield and yield contributing character i.e. number of seeds pod (1.35), 1000 seeds weight (438.73 g), seed yield (2078.61 kg ha -1 ), stover yield 2228.00 kg ha -1 ) and harvest index (33.82%) were highest in B1 (biofertilizer) and F4 (1.75, 432.93g, 2055.00 kg ha -1 , 2251.33 kg ha -1 and 32.86 %, respectively) fertilizer. This combination also showed the best result for all vegetative and reproductive growth and development. Therefore, B1 (biofertilizer), F4 (25% higher than recommended N &P) and the combine effect B1F4 could be used to cultivate chickpea.