EFFECT OF VERMICOMPOST AND EARTHING UP ON THE GROWTH AND YIELD OF ONION

Abstract

A field experiment was conducted at the Horticultural Farm of Sher-e-Bangla Agricultural University, Dhaka-1207 during the period from October 2017 to March 2018. The experiment consists of two factors. Factor-A vermicompost V (6 t ha -1 vermicompost), V 2 (10 t ha -1 vermicompost) and V 3 (14 t ha -1 vermicompost) and Factor-B earthing up E 0 (control), E 1 (two times earthing up) and E (three times earthing up). The two factor experiment was laid out in Randomized Complete Block Design with three replications. The collected data were statistically analyzed. Results revealed that in terms of vermicompost application, the highest fresh weight bulb (527.89 g) and yield ha -1 2 -1 0 (control), V (40.07g), yield plot (5.39 t) were found from the application of vermicompost at 14 t ha -1 compared to no application of vermicompost. Again, in terms of different earthing up treatments, the highest fresh weight bulb -1 (32.48g), yield plot -1 (431.67g) and yield ha

(4.41 t) were found from the treatment E 2 (three times earthing up) compared to E (no earthing up) treatment. Both vermicompost and earthing up and their combination showed significant variation on different growth and yield parameters of onion. The highest fresh weight bulb -1 (42.73g), yield plot -1 (567.33g) and yield ha (5.79 t) were found from the treatment combination of V 3 E 2 compared to control V (control) treatment combination. And it may be summarized that 14 t/ha vermicompost with three times earthing up performed the maximum yield of onion compared to other treatments. -1 0 E 0 0 1 -1 -1