Application Experiment of Nitrogen Fertilizer for Tianliangyou 616

The application ratio of base nitrogen fertilizer to tillering fertilizer to panicle fertilizer that suit for high yield of super hybrid rice was explored,and the quantifiable application rate of nitrogen fertilizer and the efficient application technique were formed.In order to find out the optimum fertilization method,three experiments with different ratios of base nitrogen fertilizer to tillering fertilizer to panicle fertilizer were conducted by using accurate quantitative fertilization technique to the key project area of high yield of super hybrid rice.The results showed that when ratio of base nitrogen fertilizer to tillering fertilizer to panicle fertilizer was 4:3:3,the fertilization effect was the best,the yield was the highest that reached 10 005 kg/hm2 and increased by 82.3% than control,the economic effect and the ratio of input to output were the highest,which reached 16700.4 Yuan/hm2 and 8.23,respectively.The results of this ratio had extremely difference with that of the others.Therefore,it should pay attention to the application,application ratio and application time of panicle fertilizer during rice production.