Growth and Yield Response of Mungbean as Influenced by Phosphorus and Boron Application

A field experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, during the period from February 2012 to May 2012 to investigate the effect of levels of phosphorus (0, 20, 40 and 60 kg ha-1) and boron (0, 1.0, 1.5 and 2.0 kg ha-1) on growth and yield of summer mungbean cv. BINAmung-8. The experiment was laid out in a Randomized Complete Block Design (RCBD) with sixteen treatment combinations having three replications. The results indicated that the crop responded significantly to phosphorus and boron in respect of growth and yield such as plant height, number of branches plant-1, pods plant-1, pod length, number of seeds pod-1, 1000 seed weight, seed yield, stover yield, biological yield and harvest index. In the combination of phosphorus and boron, all the parameters were significant by influence. The highest seed yield (1.19 t ha-1) was obtained from 40 kg P ha-1followed by 60 kg P ha-1 (1.13 t ha-1) and 20 kg P ha-1 (1.10 t ha-1) while the lowest seed yield (1.01 t ha-1) was obtained from the control plot. In case of boron application, the highest seed yield (1.16 t ha-1) was obtained from 1.5 kg B ha-1 followed by 2.0 kg B ha-1(1.14 t ha-1) and 1.0 kg B ha-1(1.09 t ha-1) whereas the lowest seed yield (1.04 t ha-1) was obtained from the control plot. The highest seed yield (1.25 t ha-1) was obtained from the combination of 40 kg P ha-1 × 1.5 kg B ha-1 while the lowest seed yield (0.95 t ha-1) was obtained from the control plot. The results suggest that mungbean crop may preferably be fertilized with a combination of 40 kg P ha-1 × 1.5 kg B ha-1 to obtain maximum seed yield in the agroclimatic condition of the study area.