Integrative knowledge-based nitrogen management practices can provide positive effects on ecosystem nitrogen retention

被引:35
|
作者
Elrys, Ahmed S. [1 ,2 ]
Wang, Jing [3 ]
Meng, Lei [1 ]
Zhu, Qilin [1 ]
El-Sawy, Mostafa M. [2 ]
Chen, ZhaoXiong [4 ]
Tu, XiaoShun [4 ]
El-Saadony, Mohamed T. [5 ]
Zhang, YanHui [4 ]
Zhang, JinBo [1 ,4 ,6 ]
Cai, ZuCong [4 ,6 ,7 ]
Mueller, Christoph [6 ,8 ,9 ,10 ]
Cheng, Yi [4 ,6 ,7 ,11 ]
机构
[1] Hainan Univ, Coll Trop Crops, Haikou, Hainan, Peoples R China
[2] Zagazig Univ, Soil Sci Dept, Fac Agr, Zagazig, Egypt
[3] Nanjing Forestry Univ, Coll Forestry, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing, Peoples R China
[4] Nanjing Normal Univ, Sch Geog, Nanjing, Peoples R China
[5] Zagazig Univ, Dept Agr Microbiol, Fac Agr, Zagazig, Egypt
[6] Justus Liebig Univ, Liebig Ctr Agroecol & Climate Impact Res, Giessen, Germany
[7] Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing, Peoples R China
[8] Justus Liebig Univ Giessen, Inst Plant Ecol, Giessen, Germany
[9] Univ Coll Dublin, Sch Biol & Environm Sci, Dublin, Ireland
[10] Univ Coll Dublin, Earth Inst, Dublin, Ireland
[11] Nanjing Normal Univ, Minist Educ, Key Lab Virtual Geog Environm, Nanjing, Peoples R China
来源
NATURE FOOD | 2023年 / 4卷 / 12期
基金
中国国家自然科学基金;
关键词
D O I
10.1038/s43016-023-00888-6
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Knowledge-based nitrogen (N) management provides better synchronization of crop N demand with N supply to enhance crop production while reducing N losses. Yet, how these N management practices contribute to reducing N losses globally is unclear. Here we compiled 5,448 paired observations from 336 publications representing 286 sites to assess the impacts of four common knowledge-based N management practices, including balanced fertilization, organic fertilization, co-application of synthetic and organic fertilizers, and nitrification inhibitors, on global ecosystem N cycling. We found that organic and balanced fertilization rather than N-only fertilization stimulated soil nitrate retention by enhancing microbial biomass, but also stimulated soil N leaching and emissions relative to no fertilizer addition. Nitrification inhibitors, however, stimulated soil ammonium retention and plant N uptake while reducing N leaching and emissions. Therefore, integrative application of knowledge-based N management practices is imperative to stimulate ecosystem N retention and minimize the risk of N loss globally. Understanding the general responses of soil gross N cycling to commonly used knowledge-based N management practices on a global scale could help predict ecosystem N retention capacity and subsequent N losses. This global meta-analysis provides evidence for different responses of soil N cycling rates and N losses and associated soil properties to various knowledge-based N management practices.
引用
收藏
页码:1075 / +
页数:16
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