中国水稻科学 ›› 2017, Vol. 31 ›› Issue (3): 327-334.DOI: 10.16819/j.1001-7216.2017.6078 327

• • 上一篇    

水分与氮素及其互作对水稻产量和水肥利用效率的影响研究进展

李俊峰, 杨建昌*()   

  1. 扬州大学 江苏省作物遗传生理国家重点实验室培育点/粮食作物现代产业技术协同创新中心,江苏 扬州 225009
  • 收稿日期:2016-05-11 修回日期:2016-08-22 出版日期:2017-05-10 发布日期:2017-05-10
  • 通讯作者: 杨建昌
  • 基金资助:
    国家自然科学基金资助项目(31461143015, 31271641, 31471438);国家科技支撑计划资助项目(2014AA10A605,2013BAD07B09);江苏高校优势学科建设工程资助项目(PAPD);扬州大学高端人才支持计划资助项目(2015-1)

Research Advances in the Effects of Water, Nitrogen and Their Interaction on the Yield, Water and Nitrogen Use Efficiencies of Rice

Junfeng LI, Jianchang YANG*()   

  1. Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
  • Received:2016-05-11 Revised:2016-08-22 Online:2017-05-10 Published:2017-05-10
  • Contact: Jianchang YANG

摘要:

了解水分、氮素及其互作对水稻产量与水、氮利用效率的影响,对协同提高水稻产量与水氮利用效率有重要意义。本文概述了水稻节水灌溉技术、氮肥利用效率与氮肥施用技术、水分与氮素对水稻产量及水氮利用效率的耦合效应、作物-土壤关系及水氮调控机制等方面取得的进展;讨论了存在的问题,这些问题包括:高产水稻作物与土壤的水氮互作效应尚不明确;高产水稻水氮耦合与高效利用的分子机理不清楚;协同提高水稻产量与水氮利用效率的调控途径尚未掌握。针对这些问题,建议今后重点研究:高产水稻作物与土壤的水氮互作效应及其机制;水氮互作调控水稻吸收利用水分和氮素的生理与分子机理;协同提高水稻产量和水氮利用效率的调控途径与关键技术。

关键词: 水稻, 水氮互作, 产量, 水分利用效率, 氮肥利用率

Abstract:

Understanding the effects of water, nitrogen (N) and their interaction on the yield, water and N use efficiencies of rice would have great significance in synergistically realizing high yield, high water use efficiency (WUE) and high N use efficiency (NUE). This paper reviewed the advances achieved in water-saving irrigation techniques, NUE and N fertilizer application techniques, coupling effect of water and N on grain yield, WUE and NUE in rice, and crop-soil relationship and its mechanism regulated by water and N. The existing problems were discussed, i.e., very limited work on synergistic interaction between water and N on the crop growth and soil quality; little information on the molecular mechanism that water and nitrogen interact on the efficient absorption and utilization of water and nitrogen in high-yielding rice; and yet to be established the crop-soil integrative management system for simultaneous increases in grain yield, WUE and NUE. Aiming to solve these problems, several important issues meriting further investigation were suggested, that is, the synergistic interaction between water and N on the crop and soil for high yield, high WUE and high NUE and its biological process, the physiological and molecular mechanism in which high-yielding rice absorbs and utilizes water and N efficiently, and crop-soil integrative approaches and key techniques to simultaneously increase grain yield, WUE, and NUE in rice.

Key words: rice, water-nitrogen interaction, grain yield, water use efficiency, nitrogen use efficiency

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