FOLIAR APPLICATION OF BORON WITH COWDUNG AND INORGANIC FERTILIZERS ON GROWTH AND YIELD OF MUNGBEAN

Abstract

A field experiment was conducted for evaluating the effect of organic and inorganic fertilizer with foliar application of boron on the growth and yield of mungbean at the research field of the Department of Agronomy, Sher-e- Bangla Agricultural University, Dhaka from March to June 2019. The experiment consisted of three levels of fertilizers viz.,F 1 (RD) of NPK fertilizer, F 2 : Recommended dose (RD) of cowdung, F 3 ii

: Recommended dose : Half recommended dose of NPK fertilizer and half recommended dose of cowdung and Boron was applied by four levels viz., B 1 :100% RD as basal, B 2 : 80% RD as basal + 20% foliar spray (FS) of boron at pre flowering, B 3 : 60% RD as basal + rest 40 % as foliar spray of boron at pre flowering, B 4 : 40% RD as basal + 60 % as foliar spray at pre flowering stage. The experiment was set up in a split-plot design with three replications. Data recorded on the basis of plant height, leaves plant -1 , branches plant -1 , dry weight plant -1 , pods plant , 1000-seed weight, pod length, seed yield, stover yield and biological yield were found statistically variable with treatments. The result revealed that treatment F 1 (recommended NPK fertilizer) showed the highest plant height (55.00 cm), dry matter weight (8.23 g), Pod length (8.04 cm), number of pods plant -1 (19.43), seed yield (1.17 t ha -1 -1 , seeds pod ) and stover yield (3.8 t ha ). On the other hand, the highest dry weight plant -1 (4.40 g), 1000-seed weight (41.741g) and seed yield (1125.6 kg ha -1 ) were recorded from B 3 (60% RD as basal + rest 40% as FS at PF). Result also showed that most of the treatment combinations gave the statistically similar results in case of seed yield where numerically the highest seed yield (1356.7 kg ha ) was recorded in F 1 B 3 . Numerically the highest stover yield (3.953 kg ha -1 ) and Biological yield (5310.0 kg ha -1 ) was recorded from F 1 B 3. The combine application of organic and inorganic fertilizer influence the growth parameter of mungbean. It may be concluded that foliar spray of boron increase the yield of mungbean compare to basal application along with recommended dose NPK fertilizer