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Optimizing water and nitrogen inputs for sustainable wheat yields and minimal environmental impacts

文献类型：期刊论文

作者Huang, Xiaomeng2,3; Xu, Xinpeng2; Zhu, Qichao3; Zhang, Yitao1
刊名AGRICULTURAL SYSTEMS
出版日期2024-10-01
卷号220页码:8
关键词Wheat Integrated water and nitrogen management Nitrogen use efficiency Greenhouse gas emissions Meta-analysis
ISSN号0308-521X
DOI10.1016/j.agsy.2024.104061
英文摘要Context: Northern China still has great potential to increase wheat productivity. Studies have shown that the improper wheat management of water and fertilizer aggravates the risk of yield instability and environmental pollution in this region. Optimizing water and N management can increase wheat yield, improve nitrogen (N) use efficiency (NUE) and water-use-efficiency (WUE), and reduce nutrient loss and environmental pollution. Therefore, the potential benefits of water and N management measures for wheat productivity in Northern China require further quantification. Objective: We quantified the effects of different N fertilizers, water, and integrated water and N management strategies on wheat yield, NUE, WUE, and greenhouse gas emissions and comprehensively evaluated the potential benefits of integrated water and N management in wheat-producing areas in Northern China. Methods: Using a meta-analysis approach, we quantified and compared the effects of four water and N management strategies (optimal N management [ONM], optimal water management [OWM], integrated water and N management [IWNM], and traditional farmers' practices [FP]) on winter wheat yield, NUE and WUE, and related environmental effects in Northern China. Results and conclusions: The results showed that, compared to those in FP, the N fertilizer application rate was 35% lower in ONM, irrigation water was 39% lower in OWM, and the N fertilizer application rate and irrigation water rate decreased by 45% and 42% in IWNM, respectively. Water and N management strategies had positive effects on yield and partial factor productivity of applied N (PFP-N), with ONM, OWM, and IWNM with 7%, 10%, and 11% higher yields and 64%, 10%, and 103% higher PFP-N than those in FP, respectively. The management practices had a positive impact on gas emission reduction, i.e., NH3 3 volatilization decreased by 48%, 58%, and 72%, and N2O 2 O emissions were reduced by 29%, 32%, and 57% for ONM, OWM, and IWNM, respectively, compared to those in FP. In addition, the WUEs of OWM and IWNM were 16% and 31% higher than those of FP, respectively. The results of the meta-analysis showed that, compared with ONM and OWM, IWNM could achieve higher wheat yields and lower greenhouse gas emissions based on less fertilizer and water consumption. Significance: Water and N are important for sustaining crop productivity in China. Focusing on exploring and optimizing the relationship and interaction between fertilization and water management can increase wheat yield, reduce environmental impacts, ensure NUE and WUE, and provide a theoretical basis for ensuring food security.
WOS关键词IRRIGATION WATER ; USE EFFICIENCY ; GRAIN-YIELD ; DRIP IRRIGATION ; SOIL ; CHINA ; EMISSIONS ; NITRATE ; SYSTEM ; FERTILIZATION
资助项目National Key Research & Development Program of China[2023YFD2300402] ; Innovation Program of Chinese Academy of Agricultural Sciences[CAAS-CSAL-202401] ; Smart Fertilization Project[20221805]
WOS研究方向Agriculture
语种英语
WOS记录号WOS:001274203400001
出版者ELSEVIER SCI LTD
资助机构National Key Research & Development Program of China ; Innovation Program of Chinese Academy of Agricultural Sciences ; Smart Fertilization Project
源URL[http://ir.igsnrr.ac.cn/handle/311030/207034]  
专题禹城站农业生态系统研究中心_外文论文
通讯作者Xu, Xinpeng
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, State Key Lab Efficient Utilizat Arid & Semiarid A, Key Lab Plant Nutr & Fertilizer,Minist Agr & Rural, Beijing 100081, Peoples R China
3.China Agr Univ, Coll Resources & Environm Sci, Beijing 100097, Peoples R China
推荐引用方式
GB/T 7714		 Huang, Xiaomeng,Xu, Xinpeng,Zhu, Qichao,et al. Optimizing water and nitrogen inputs for sustainable wheat yields and minimal environmental impacts[J]. AGRICULTURAL SYSTEMS,2024,220:8.
APA Huang, Xiaomeng,Xu, Xinpeng,Zhu, Qichao,&Zhang, Yitao.(2024).Optimizing water and nitrogen inputs for sustainable wheat yields and minimal environmental impacts.AGRICULTURAL SYSTEMS,220,8.
MLA Huang, Xiaomeng,et al."Optimizing water and nitrogen inputs for sustainable wheat yields and minimal environmental impacts".AGRICULTURAL SYSTEMS 220(2024):8.

入库方式： OAI收割

来源：地理科学与资源研究所

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