GROWTH AND YIELD RESPONSE TO MUNGBEAN UNDER DIFFERENT LEVELS OF SULFUR AND POTASSIUM FERTILIZER APPLICATION

Abstract

An experiment was carried out at the research field of Sher-e-Bangla Agricultural University, Dhaka, during March to June, 2019 to study the effect of different levels of sulfur and potassium fertilizer application on the growth and yield of BARI Mung6. In this experiment, the

treatment consisted of 2 factors. Factor A: sulfur levels (4) viz. S 0 = No sulfur (Control), S 1 = 3 kg S ha -1 , S 2 = 6 kg S ha -1 , S 3 = 12 kg S ha and Factor B: potassium level (4) viz. K 0 = No potassium (Control), K 1 = 20 kg K ha

= 40 kg K ha -1 , K 3 = 60 kg K ha -1 . The experiment was laid out in a randomized complete block design (RCBD) with three replications and each replication had 16 unit plots. BARI Mung-6 seeds were sown at the rate of 40 kg ha -1 in furrows. Data on different yield contributing characters and yield were recorded and statistically analyzed for evaluating the treatments effect to find out the suitable levels of sulfur and potassium fertilizer application for the highest yield of mungbean. In case of different level of sulfur fertilizer application, the highest number of branches plant

(3.55), pods plant -1 (14.72), seeds pod -1 (9.74), 1000 seeds weight (51.27 g), seed yield (1.24 t ha -1 ), stover yield (2.35 t ha -1 ) and biological yield (3.59 t ha ) were observed in S 2 (6 kg S ha -1 ) treatment. In case of different level of potassium fertilizer application, the highest number of branches plant -1 (3.57), pods plant (14.20), seeds pod -1 (9.65), 1000 seeds weight (51.16 g), seed yield (1.24 t ha -1 ), stover yield (2.36 t ha -1 ) and biological yield (3.6 t ha -1 ) were observed in K 2 (40 kg K ha ) treatment. In case of the combined effect, the highest number of branches plant 1 (16.47), seeds pod -1 (10.87), 1000 seeds weight (56 g), seed yield (1.51 t ha -1 -1 -1 -1 -1 -1 (4.73), pods plant ), stover yield (2.92 t ha -1 ) and biological yield (4.43 t ha -1 ) were observed in S 2

+ 40 kg K ha -1 ) treatment combination and the corresponding lowest value was observed in control treatment.