EFFECT OF DIFFERENT DOSES AND TIME OF APPLICATION OF MUSTARD OIL CAKE ON GROWTH AND YIELD OF RICE (Oryza sativa L.)

Abstract

This experiment was done to know the effect of different doses and time of application of mustard oil cake on the growth and yield contributing characteristics of rice. The experiment was carried out at the Soil Science Farm at Sher-e-Bangla Agricultural University, Dhaka during the period of November, 2019 to May 2020 to study the effect of different rates and dates of mustard oil cake application on growth and yield of rice (BRRI dhan67). The experiment was laid out on Randomized Completely Block Design (RCBD) with three replications. There were four mustard oil cake (MOC) fertilizer levels viz., M 1 =no mustard oil cake, M 2 =25 kg ha =50 kg ha-1, M 4 =75 kg ha -1 and three times of application viz., T 1 -1 , M 3 =Basal dose, T 2 =20 DAT, and T 3 =35 DAT. Results indicated that the effect of mustard oil cake showed significant variation in respect of all growth, yield contributing characters and yield. At harvest, highest plant height (81.66cm), tillers hill -1 (21.55), effective tillers hill

(14.22), panicle length (21.87cm), filled grains panicle -1 (132.1), 1000 grain weight (29.35 g), grain yield (8.2 t ha -1 ), straw yield (5.16 t ha -1 ) was obtained from the application of MOC. On the other hand, highest plant height (81.67cm), tillers hill

(21.42), effective tillers hill -1 (14.58), panicle length (22.84cm), filled grains panicle

(132.24), 1000 grain weight (29.35 g), grain yield (7.6 t ha -1 ), straw yield (5.15t ha ) was obtained from the time of application. Mustard oil cake @ 75 kg gave the highest grain yield (7.6 t ha -1 ). Therefore, application of MOC @ 75 kg ha at 35 DAT appears to be the best package for BRRI dhan67 produced higher yield.