RESPONSE OF MUNGBEAN TO ZINC, BORON AND MOLYBDENUM APPLICATION

Abstract

A field experiment was conducted at Sher-e-Bangla Agricultural University Farm, Dhaka during the period from April 2017 to July 2017 to study the response of mungbean (BARIMung-6) to zinc, boron and molybdenum application.The single factor experiment was consisted with eight treatments viz., T 1 = Control, T 2 = Zn 2.0 kg ha -1 , T 3 = B 1.5 kg ha -1 , T 4 = Mo 1.0 kg ha = Zn+B, T 6 = Zn+Mo, T 7 = B+Mo and T = Zn+B+Mo.The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Results showed that plant height, number of branches plant -1 8 , pod length, number of pods plant -1 , number of seeds pod , grain yield, stover yield, biological yield, harvest index and available phosphorous and exchangeable potassium content of post-harvest soil was significantly influenced by zinc, boron and molybdenum application.Among the different treatments T (2kg Zn+1.5 kg B+1 kg Mo) treatment produced tallest plant (44.40 cm), highest number of branches plant 8 (9.5), maximum number of pods plant -1 (13.0), maximum length of pod (9.60 cm), maximum number of seeds pod -1 (10.00), highest 1000 grain weight (50.80g), highest grain yield (1.40 t ha ) and maximum harvest index (52.84%).This combination also exhibited highest pH (6.05), organic matter (1.39 %), total nitrogen (0.092%), available phosphorous (23.45 ppm) and exchangeable potassium content (0.24 meq/ 100 gm soil) of post-harvest soil. On the other hand, T (Control) treatment produced lower values in all cases except stover yield and harvest index. From the growth, yield and post-harvest soil analytical reports, it is apparent that the combination of 2kg Zn+1.5 kg B+1 kg Mo (T8) was suitable for mungbean cultivation