Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (12): 1-6.doi: 10.11924/j.issn.1000-6850.casb2021-0700

Special Issue: 生物技术

    Next Articles

Effects of Nitrogen Application on Crop Growth and Yield Under Waterlogging Stress: A Review

LI Xia1(), PAN Chen1, WANG Xiaoyan1, HOU Jun1, YANG Jun1, LI Rui2, QI Dongliang1()   

  1. 1College of Agriculture, Yangtze University, Jingzhou, Hubei 434025
    2Agricultural Technology Extension Center of Shenmu, Yulin, Shaanxi 719300
  • Received:2021-07-21 Revised:2021-11-05 Online:2022-04-25 Published:2022-05-18
  • Contact: QI Dongliang E-mail:2683665532@qq.com;qdl198799@126.com

Abstract:

With the aggravation of climate change, the frequency and intensity of waterlogging disasters are increasing, which seriously restrict the sustainable crop production. It is an inherent and urgent demand for fully exploiting the potential of crops and improving their resistance to water stress and adaptability to climate change. With the in-depth study of physiological and biochemical mechanism of crop stress resistance, more attention has been paid to the important role of nitrogen application in stress resistance of crops. To further understand the regulatory effect and mechanism of nitrogen fertilizer on crop growth and yield under waterlogging conditions, the authors summarized the effects of waterlogging stress on photosynthesis of the aboveground part, antioxidant enzyme activity, membrane oxidation, endogenous hormone content, root growth and yield formation of crops, and the nitrogen regulation effects on these aspects, clarified the physiological mechanism of nitrogen fertilizer regulating crop growth and yield formation, and pointed out the problems in the study of nitrogen fertilizer regulating crop growth and yield under waterlogging stress. On this basis, we proposed some future research directions, such as applying new nitrogen fertilizer and modern high-tech technology, and breeding nitrogen efficient and stress resistant varieties to improve crop stress resistance.

Key words: waterlogging stress, nitrogen application, root growth, yield, physiological mechanism, solution

CLC Number: