Effect of different sources of nitrogen on growth and yield of transplanted rice cv. CG Dhan-1919 under rainfed condition

Abstract

A field experiment was conducted during the Kharif season 2023 at Research cum Instructional Farm Shaheed Gundadhoor College of Agriculture and Research Station Jagdalpur, Chhattisgarh, to study the “ Effect of different sources of nitrogen on growth and yield of transplanted rice cv. CG Dhan-1919 under rainfed condition” in Randomized Block Design using ten treatments which were replicated in three times. The results obtained under (T2) 100% NPK (120:60:40 kg h-1) (50% N basal + 50% N at 30 DAT and 50 DAT) with 100% PK revealed significantly higher growth parameters viz., number of tillers, leaf area index, dry matter accumulation, crop growth rate, relative growth rate, net assimilation rate and yield attributing characters viz., length of panicles, total number of grains panicle-1.The statistically highest grain yield, straw yield and harvest index was recorded under treatment T2. Maximum gross return, net return and B: C ratio was obtained treatment T2. and lowest was recorded under T1 (Absolute control).