INFLUENCE OF RESIDUAL EFFECT OF ORGANIC FERTILIZER AND DIFFERENT DOSES OF CHEMICAL FERTILIZER ON THE YIELD AND SEED QUALITY OF MUNGBEAN

Abstract

A pot experiment was conducted at the net house of the Department of Agronomy, Sher-eBangla

Agricultural University, Dhaka during the period from April to June 2018 to investigate the yield performance and seed quality of mungbean as influenced by residual effect of organic fertilizers and different doses of chemical fertilizers. The experiment was laid out in two factors following a Factorial Experiment using Completely Randomized Design (CRD Factorial) with three replications. Factor A. Organic fertilizer-3; viz. O 0 =Control, O 1 =Cowdung, O =Vermicompost and Factor B: Chemical fertilizers-4; viz. F 0 =Control, F 1 2 =50% of recommended dose of chemical fertilizers, F =75% of recommended dose of chemical fertilizers, F 3 ii

2 =Recommended dose of chemical fertilizers. The result revealed that the residual effect of vermicompost (O ) showed its superiority by producing the highest mungbean yield (2.03 tha 1 -1 (12.69 g), pod length (8.65 cm), pods plant 2 ) with higher plant height (40.13 cm), dry weight plant -1 (33.70), seeds pod -1 (12.24) and weight of 1000 seed (40.28 g) in this treatment. On the other hand, recommended dose of chemical fertilizer seems promising in mungbean cultivation as this treatment (F ) gave the highest seed yield (2.24 tha -1 ) along with the highest pod length (8.94 cm), pods plant 3 (34.49), seeds pod -1 (12.51) and 1000 seed weight (40.38 g). Among the interactions, O 2 F out yielded other combined treatment by producing highest yield (2.48 tha -1 3 ). This interactions produced the tallest plant (43.48 cm), maximum dry weight plant -1 (13.71 g), pod length (9.21 cm), pod plant -1 (36.31), seeds pod -1 (12.88), 1000 seed weight (41.30 g), shelling percentage (71.62%), strover yield (5.52 tha -1 ), biological yield (8.00 tha -1 ), harvest index (34.13%), germination percentage (94.33%), speed of germination of seed (10.27), seedling shoot length (22.670 cm), seedling dry weight (0.0430 g) and lowest EC test value (1628.1 µS cm 1 ). The study clearly indicated that the residual effect of vermicompost as organic fertilizer and the recommended dose of chemical fertilizers and combination of vermicompost and recommended doses of chemical fertilizer might be an option for producing maximum yield and quality seed of mungben.