摘要
针对目前水稻水田氮肥投放量大而导致氮肥利用率低的问题进行研究。分析影响水稻氮肥利用率的主要因素,从生理机制方面分析不同水稻品种氮利用效率的差异,介绍水稻氮利用效率在遗传与分子生物学方面取得的进展,指出现有研究方法中存在的问题,旨在为培育高效利用氮肥的水稻品种提供参考。
This article examines the issue of overuse of nitrogen fertilizer in paddy field while generating low utilization efficiency.The author makes analysis on the major factors affecting the nitrogen use efficiency and the difference in nitrogen use efficiency of different rice varieties from the perspective of physiological mechanism,describes the progress of rice nitrogen use efficiency in terms of genetics and molecular biology,and points out the existing problems in research methods in order to provide reference for the cultivation of rice varieties which can make efficient use of nitrogen fertilizer.
出处
《农业科技与装备》
2013年第3期9-10,共2页
Agricultural Science & Technology and Equipment
关键词
水稻
氮肥利用率
生理机制
遗传
方法
rice
nitrogen use efficiency
physiological mechanism
genetic
method
