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Volume 27 Issue 7
Sep.  2012
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Article Contents
CHEN Jun, YE Rong-rong, LI Cheng-xun, ZHU Hai-lin, ZHAO Hong, LI Zhong, ZHANG Zhi-xing, LIN Wen-xiong. Effects of Nitrogen Fertilizer Management on Rice Yield and Nitrogen Utilization Efficiency[J]. Fujian Journal of Agricultural Sciences, 2012, 27(7): 759-763.
Citation: CHEN Jun, YE Rong-rong, LI Cheng-xun, ZHU Hai-lin, ZHAO Hong, LI Zhong, ZHANG Zhi-xing, LIN Wen-xiong. Effects of Nitrogen Fertilizer Management on Rice Yield and Nitrogen Utilization Efficiency[J]. Fujian Journal of Agricultural Sciences, 2012, 27(7): 759-763.

Effects of Nitrogen Fertilizer Management on Rice Yield and Nitrogen Utilization Efficiency

  • Received Date: 2012-06-05
  • Rev Recd Date: 2012-07-10
  • Publish Date: 2012-07-30
  • Nitrogen (N) fertilizer management is one of the important factors in the rice cultural regulation, which plays a significant role in the growth of rice.Using the rice cultivar Yonyou No. 6 as experimental material, four different N application proportions at the early and late growth stages were carried out to understand the effects of N fertilizer management on rice yield and N utilization efficiency. In detail, the N application rates were the same for each treatment, but the N application proportions at the early and late growth stage were 4:6 (N1), 5:5 (N2), 6:4 (N3) and 7:3 (N4), respectively. The results indicated that appropriate N application rates at late growth stage, for example, N3 treatment (6:4), could effectively slow down the degradation of chlorophyll, reduce ineffective tillers and increase rice spike rate, which led to the high yield of rice. Moreover, the N accumulation, rice yield, agronomic and physiological nitrogen utilization rate in N3 treatment were more than other treatments. It's concluded that a optimized method of N fertilizer management could play an important role in the yield formation of Yonyou No. 6.
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  • [1]
    丁艳锋,刘胜环,王绍华,等.氮素基、蘖肥用量对水稻氮素吸收与利用的影响[J].作物学报,2004,30(8):739-744
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    黄卫群,郝兴顺,冯志峰,等.不同氮肥水平下水稻干物质生产量及氮素利用率研究[J].陕西农业科学,2010,4:7-9.
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