GROWTH AND YIELD OF MUNGBEAN AS AFFECTED BY AGRONOMIC MANAGEMENTS

Abstract

A field experiment was carried out at the research field of Sher-e-Bangla Agricultural University, Dhaka during the period of March to June 2019 to study the influence of agronomic managements on the growth and yield of mungbean. The experiment comprised of two factors; Factor A: Variety (2) viz. BARI Mung-5 (V 1 ) and BARI Mung-6 (V 2 ) and Factor B: Agronomic managements (7) viz. Control- no managements (M 1 ), All managements except fertilizer (M 2 ), All managements except weeding (M 3 ), All managements except irrigation (M 4 ), All managements except insecticide (M 5 ), All managements except fungicide/ bactericide (M 6 ii ), Complete managements (M 7 ). The experiment was laid out in factorial arrangements of split-plot design with three replications. Results revealed that number of leaves plant -1 (9.69), number of weeds m -2 (123.71), dry weight of weeds (28.58), days to flowering (43.48 days) and number of seeds pod -1 (9.23) were significantly higher in BARI Mung-5 (V 1 ) but plant height (44.49 cm), number of nodules plant (19.52), dry weight (7.55 g) plant -1 , SPAD value (55.98), number of pods plant (45.71), weight of 1000-seed (43.14 g), seed yield (582.32 kg ha -1 ), shell yield (322.80 kg ha -1 ), shelling percentage (64.19%) and harvest index (15.41 %) were higher in BARI Mung-6 (V 2 ). Complete managements (M 7 ) showed better results in case of all growth and yield parameters than no managements (M 1 ). Results from interaction effect of variety and managements revealed that the highest seed yield (714.82 kg ha due to the highest number of pods plant -1 ) was obtained from the interaction of V 2 -1 and 1000- seed weight. Weed number (162.00) and dry weight (24.67 g) of weeds m -2 were found to be higher in V 1 M 1 and V 2 M 4 interaction, respectively. The overall result showed that BARI Mung-6 (V 2 ) with complete management (M 7 ) produced better yield in mungbean. Compared to that of complete management, the highest yield reduction was observed in no management (64.62%) that followed by no weeding (49.78%), no irrigation (13.96%) and no insecticide (10.98%).