Effect of Different Nitrogen Fertilizer Management Modes on Yield of Liaoyou 5218

To build up a high efficient nitrogen management mode for large-spike hybrid japonica,the effect of different nitrogen fertilizer management modes on the yield of Liaoyou 5218 was studied by field experiment.The results showed that the yield of Liaoyou 5218 in treatment of tillering fertilizer was applied at June 4 and June 17 was higher under two nitrogen fertilizer management modes.Among them,the highest yield of Liaoyou 5218 reached 10 430.2 kg/hm2 when the ratio of basal,tillering and panicle nitrogen fertilizer was 3∶ 5∶ 2.