Influence of coupled application of potassium and boron on growth and yield of late sown mungbean

Abstract

To ensure both food and nutritional security of teeming millions of Bangladesh, cropping intensity must be increased along with nutritional food production. Mungbean, which is an important source of protein, can easily cope with the intensive cropping system due to short duration. But sometimes, to obtain maximum productivity per unit area in a calendar year, mungbean cannot be sown in optimum time. Considering this, a field study was carried out at Sher-e-Bangla Agricultural University to explore the effect of additional potassium and boron application to increase the yield of late sown mungbean which was sown on 25 October. The experiment was laid out in randomized complete block design with three replications and five treatments. Results revealed that additional potassium and boron along with recommended fertilizer dose had significant influence on growth, yield and yield contributing characters of late sown mungbean. The growth and yield of late sown mungbean is hampered due to temperature stress which cannot be overcome by recommended dose only but can be by addition of extra potassium and boron with recommended dose. The highest seed yield (1.12 t ha-1) was obtained from recommended dose along with 10 Kg K and 2 Kg B ha-1 which was 40% higher than recommended dose only. Similar results were recorded for other parameters also. So, supplementation of recommended dose with 10 Kg K and 2 Kg B may be suggested to increase growth and yield of late sown mungbean.