Yield and water use responses of winter wheat to irrigation and nitrogen application in the North China Plain

作     者：ZHANG Ming-ming DONG Bao-di QIAO Yun-zhou SHI Chang-hai YANG Hong WANG Ya-kai LIU Meng-yu 

作者机构：Key Laboratory of Agricultural Water Resources Hebei Laboratory of Agricultural Water-Saving Center for Agricultural Resources Research Institute of Genetics and Developmental Biology Chinese Academy of Sciences Shijiazhuang 050021 P.R. China University of Chinese Academy of Sciences Beijing 100049 P.R. China Qingdao Agricultural University Qingdao 266109 P.R.China 

出 版 物：《Journal of Integrative Agriculture》 (农业科学学报（英文版）)

年 卷 期：2018年第17卷第5期

页      面：1194-1206页

核心收录：

学科分类：09[农学] 0901[农学-作物学] 

基　　金：supported by the National Key Research and Development Program of China (2016YFD0300808) the National Key Technologies R&D Program of China during the 12th Five-Year Plan period (2013BAD05B02) the National Natural Science Foundation of China (31571612 and 31100191) the Science and Technology Service Network Initiative of Chinese Academy of Sciences (KFJ-STSZDTP-001) the Hebei Key Research and Development Program, China (15226407D and 17227006D) 

主　　题：winter wheat irrigation regime nitrogen application grain yield water use efficiency 

摘      要：With increasing water shortage resources and extravagant nitrogen application, there is an urgent need to optimize irrigation regimes and nitrogen management for winter wheat（Triticum aestivum L.） in the North China Plain（NCP）. A 4-year field experiment was conducted to evaluate the effect of three irrigation levels（W1, irrigation once at jointing stage; W2, irrigation once at jointing and once at heading stage; W3, irrigation once at jointing, once at heading, and once at filling stage; 60 mm each irrigation） and four N fertilizer rates（N0, 0; N1, 100 kg N ha-（-1）; N2, 200 kg N ha-（-1）; N3, 300 kg N ha-（-1）） on wheat yield, water use efficiency, fertilizer agronomic efficiency, and economic benefits. The results showed that wheat yield under W2 condition was similar to that under W3, and greater than that under W1 at the same nitrogen level. Yield with the N1 treatment was higher than that with the N0 treatment, but not significantly different from that obtained with the N2 and N3 treatments. The W2 N1 treatment resulted in the highest water use and fertilizer agronomic efficiencies. Compared with local traditional practice（W3 N3）, the net income and output-input ratio of W2 N1 were greater by 12.3 and 19.5%, respectively. These findings suggest that two irrigation events of 60 mm each coupled with application of 100 kg N ha-（–1） is sufficient to provide a high wheat yield during drought growing seasons in the NCP.