EFFECT OF DIFFERENT RATES AND DATES OF· MUSTARD· OIL CAKE APPLICATION ON GROWTH AND YIELD OF RICE

Abstract

The experiment was carried out at the Soil Science Farm at Sher-e-Bangla Agricultural University, Dhaka during the period of November, 2018 to May 2019 to study the effect of different rates and dates 'of mustard oil cake application on growth and yield of rice (BRRJ 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" Mr=no mustard oil cake, M2=25 kg ha", M3=50 kg ha-l, M4=75 kg ha" and three time of application viz., Tj=Basal dose, T2=20 DAT, and T3=35 DAT, Mustard oil cake was top dressed in three equal splits at 10, 35 and 55 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-] (21.55), effective tillers hill-] (14.22), panicle Jength (21,:87cm), filled grains panicle" (132.1), 1000 grain Weight (29.35 g), grain yield ( 8.2 t ha-\ straw yield (5.16 tha") was obtained from the application of MOC, Onthe other hand, highest plant height (81.67cm), tillers hill-] (21.42), effective tillers hill-l (14,58), panicle length (22.84cm), filled grains panicle" (132,24), 1000 grain weight (29.35 g), grain yield ( 7.6 t ha"), straw yield ( 5.'] 5t ha") was obtained from the time of application .. Mustard 011 cake @ 75 kg gave the highest grain yield (7.6 t ha"). Interaction effect showed that application of MOC @75 kg application in 75 days after application gave the highest (9.9 t ha") grain yield. Therefore, application of MOC .® 75 kg ha-1 at 35 DAT appears to be the best package for BRRl dhan67 produced higher yield,