Performance of Varieties under Different Nitrogen Fertilizer Levels

Nitrogen influence plant growth and yield of crops. To evaluate the potential different pre released rice genotypes at levels under Northern Telangana Zone. Experiment was laid out insplit plot design with five main plots (pre cultures) four sub (nitrogen levels) RARS, Jagtial, Kharif 2018-19 to Rabi 2019-20.
 Four cultures TelaganaZone viz., C1-KNM-733, C2- KNM-1638, C3- JGL 24423 C4: JGL-H-1 along one check variety C5-MTU-1010 were evaluated nitrogen tested . Based on two seasons data, 100% RDN:100-120 kg N ha-1 is enough respect KNM 1638 during 2018 JGL-24423 RDN-120-150 ha-1. Application RDN par 90% urea recorded highest yields varieties Kharifand Rabi.The in (9341kgha-1) followed JGL24423 (9927kgha-1) compare (9,341 kgha-1) kharif season. Among (10328 ha-1) increasing dose resulted decreasing yield. But cost benefit ratio also JGL-24423(1:1.37) by (1:1.31) In rabithe (5802kgha-1) 733 (5731kgha-1) (4651 @5231 90%RDN @ 4774 B:C maximum 1.37 KNM733 1.36 among 100 1.32 @1.02.It canbe concluded that RDN-100-120 ha -1 Rabi-18-19 -1.