Response of hybrid and inbred rice varieties to the application methods of urea supergranules and prilled urea

The response of hybrid (Sonar Bangla-1 and Alok 6201) and inbred (BRRI Dhan 34) rice varieties was determined to the application methods of urea supergranules (USG) and prilled urea (PU). Grain and straw yields were highest (4.87 and 7.72t ha-1, respectively) in BRRI Dhan 34. The highest grain yield of BRRI Dhan 34 was mostly the outcome of highest number of grains panicle-1. Sonar Bangla-1 produced the second highest (4.28t ha-1) grain yield while the lowest one (3.86t ha-1) was produced by Alok 6201 which was the consequence of lowest number of grains panicle-1 and highest number of sterile spikelets panicle-1. BRRI Dhan 34 showed the best performance among the varieties studied for almost all the growth and yield characters. Grain yield was recorded the highest (4.5t ha-1) in the method of half USG plus half PU at 10 and 30 DAT which maintained similarity with recommended method of USG and furrow placement of USG. BRRI Dhan 34 interacted favourably with furrow placement of USG to produce the highest grain yield.