Field experiments were conducted during kharif seasons of 1999-2000 and 20002001 to study the effect of irrigation, drainage and nitrogen management on CoRH 2 Hybrid rice at Agricultural college and Research Institute, Madurai. The results revealed that irrigation to 5cm depth one day after disappearance of ponded water with mid season drainage and application of N in four splits viz., 16.7% at 10 DAT, 33.3% at AT, 33.3% at PI and 16.7% at Heading registered the higher growth attributes, yield attributes, grain yields, WUE and economics. The above treatment combinations registered the maximum grain yield of 7533 and 8078 kg ha -1 during 1999-2000 and 20002001 respectively.
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