The Coupled Effects of Irrigation Scheduling and Nitrogen Fertilization Mode on Growth, Yield and Water Use Efficiency in Drip-Irrigated Winter Wheat
文献类型： 外文期刊
第一作者： Zain, Muhammad
作者： Zain, Muhammad;Si, Zhuanyun;Li, Sen;Gao, Yang;Mehmood, Faisal;Rahman, Shafeeq-Ur;Mounkaila Hamani, Abdoul Kader;Duan, Aiwang;Zain, Muhammad;Si, Zhuanyun;Rahman, Shafeeq-Ur;Mounkaila Hamani, Abdoul Kader;Mehmood, Faisal
作者机构：
关键词： winter wheat; drip irrigation; irrigation scheduling level; nitrogen application mode; grain yield; water use efficiency
期刊名称：SUSTAINABILITY （ 影响因子：2.576； 五年影响因子：2.798 ）
ISSN：
年卷期： 2021 年 13 卷 5 期
页码：
收录情况： SCI
摘要： Sound irrigation and nitrogen management strategies are necessary to achieve sustainable yield and water use efficiency of winter wheat in the North China Plain (NCP). The coupled effects of irrigation scheduling and the nitrogen application mode (NAM) on winter wheat growth, yield and water use efficiency under drip irrigation were evaluated with a two-year field experiment, which consisted of three irrigation scheduling levels (ISLs) (irrigating when soil water consumption (SWC) reached 20, 35 and 50 mm, referred as I20, I35 and I50, respectively) and three nitrogen application modes (NAMs) (ratio of basal application and topdressing as 50:50, 25:75 and 0:100, referred as N50:50, N25:75 and N0:100, respectively). The experimental results showed that irrigating winter wheat at ISL I35 substantially (p < 0.05) improved the grain yield by 15.89%, 3.32% and 14.82%, 4.31% and water use efficiency (WUE) by 5.23%, 16.03% and 5.26%, 12.36%, compared with those at ISL I20 and I50 in 2017-2018 and 2018-2019 growing seasons, respectively. NAM N25:75 appeared very beneficial in terms of grain yield, yield components and WUE as compared to other NAM levels. The maximum grain yield (8.62 and 9.40 t ha(-1)) and water use efficiency (1.88 and 2.09 kg m(-3)) were achieved in treatment I35N25:75 in two growing seasons over those in other treatments. The results in this study may deliver a scientific basis for irrigation and nitrogen fertilization management of the drip-irrigated winter wheat production in the NCP.
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