Abstract

The field experiment was conducted at the research farm College of Agriculture, JNKVV, Rewa M.P. during kharif season 2011 to study the performance of rice varieties and relation to nitrogen level under irrigated conditions. Twenty one treatment combinations, comprising three nitrogen levels (40, 80 and 120 kg ha^-1) allotted to the main plots and seven varieties (IET 21288, Jaldidhan, Varalu, IET 21296, IET 21278, Aditaya and Dantensavari) to the subplots, were tested in split-plot design with three replications. Application of 120 N kg ha^-1 proved significantly superior to 40 kg N and produced maximum grain yield (49.88 q ha^-1), straw yield (93.10 q ha^-1) and net income (Rs. 30836 ha^-1) over 80 N kg ha^-1. Among different rice varieties, Dantensavari produced significantly higher grain yield (45.56 q ha^-1), straw yield, fetched highest net return (Rs. 32037.46 ha^-1) and B: C ratio during the study; While, the rest of the varieties remained differed for different traits. The other promising varieties for the region were IET 21278, Varalu, and IET 21278. The treatment combination of Dantensavari with 120 N kg ha^-1 was found to be best in producing grain yield (58.39q ha^-1), followed by IET 21278 (56.78 q ha^-1) and obtained net income Rs. 40871 ha^-1 and Rs. 38983 ha^-1, respectively.

Key words: Nitrogen, varieties, rice, grain yield, straw yield.