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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (33): 114-120.

所属专题： 水稻

• 农学 农业基础科学 • 上一篇    下一篇

不同氮肥管理模式对早稻产量及氮肥利用率的影响

柴慧清 彭建伟 荣湘民 刘强 周旋 周虎   

  • 收稿日期:2011-05-27 修回日期:2011-10-11 出版日期:2011-12-25 发布日期:2011-12-25
  • 基金资助:

    公益性行业（农业）科研专项“农作物最佳养分管理技术研究与应用”;湖南省重点实验室开放基金项目“不同养分管理技术下湖南双季稻产量及肥料利用效率研究”

Effects of Different Nutrient Management Models on Yield and Nitrogen Use Efficiency of Early Rice

  • Received:2011-05-27 Revised:2011-10-11 Online:2011-12-25 Published:2011-12-25

PDF (PC)

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摘要：

为了探明不同氮肥管理模式对水稻产量及氮肥利用率的影响，采用田间小区试验，对氮肥用量、施用时期、有机无机肥结合等氮肥管理方式下早稻产量及氮肥利用率的差异进行研究。结果表明，施用氮肥在水稻生产中增产效果显著，与对照相比，早稻施氮比不施氮增产41.06%~76.90%。不同的氮肥管理模式对产量的影响较大，高产高效模式、超高产高效模式与农民模式相比均可以显著提高水稻产量，增产幅度为16.62%~25.41%，并可以不同程度地提高氮肥利用率，同时提高了单位面积有效穗，也促进了氮、磷养分的累积。

关键词: 一次性施氮肥, 一次性施氮肥, 不同氮肥比例, 河蟹生长, 河蟹营养价值, 河蟹成活率

Abstract:

The effects of different nutrient management modes on yield and nitrogen use efficiency of early rice were studied in field-plot experiments. The results showed that the application of nitrogen fertilizer could significantly increase rice yield, compared with black treatment, the early rice increased by 41.06%-76.90%. different nitrogen management significantly influenced by the mode on yield, high yield and high efficiency model and the super-high-yield compared with farmers mode high mode, the yield were greatly increased by 16.62%-25.41%, and the nitrogen use efficiency also could be improved in varies degrees. While improving the effective ear of unit area, but also promote the accumulation of nitrogen, phosphorus nutrients.