水稻氮肥利用效率的研究进展  

Research Progress on Improving the Utilization Efficiency of Nitrogen Fertilizer in Rice

作　　者：赵琦 

机构地区：[1]辽宁省农业技术推广总站,沈阳110034

出　　处：《中国稻米》2016年第6期15-19,共5页China Rice

摘　　要：我国水稻生产发展迅速,氮肥的使用起了重要作用,但我国氮肥利用率却明显低于世界平均水平。这不仅严重影响我国水稻生产整体竞争力,还会引发一系列环境问题。本文综述了氮对水稻生长的影响,以及影响水稻对氮肥吸收的各种因素,并就如何提高我国水稻氮肥利用效率展开讨论,以期为提高我国氮肥利用水平和农民增产增收提供参考。Rice production develops rapidly in our country, nitrogen fertilizer play an important role in rice production, but the utiliza- tion rate of nitrogen fertilizer is lower than the average level of the world obviously. It not only affects the overall competitiveness of rice production in our country, but also leads to a series of environmental problems. The author introduced the effects of nitrogen on rice growth, the influencing factors of nitrogen absorption of rice, and discussed how to improve the nitrogen use effieiency of rice in our country in this paper, in order to increase the nitrogen use efficiency and income for farmers.

关 键 词：水稻 氮肥利用效率 施肥技术 

分 类 号：S511.062[农业科学—作物学]