Journal article

Fates and Use Efficiency of Nitrogen Fertilizer in Maize Cropping Systems and Their Responses to Technologies and Management Practices: A Global Analysis on Field N-15 Tracer Studies

Zhi Quan, Xin Zhang, Eric A Davidson, Feifei Zhu, Shanlong Li, Xinghan Zhao, Xin Chen, Li-Mei Zhang, Ji-Zheng He, Wenxue Wei, Yunting Fang

EARTHS FUTURE | AMER GEOPHYSICAL UNION | Published : 2021

Abstract

Nitrogen (N) fertilization has boosted grain production during the past century, while excess N fertilization with declining N use efficiency (NUE) has led to severe pollution in many regions. To achieve the goal of sustainable food production, Technologies and Management Practices (TMPs, e.g., optimum N application rate and methods, N-transformation inhibitors) have been developed to improve crop yield and NUE and to reduce N losses. However, it remains unclear how N fate has been changed by environmental factors and TMPs. Here, we compiled a dataset of 366 field 15N tracer observations from 74 publications worldwide and conducted a meta-analysis to examine how environmental conditions and ..

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University of Melbourne Researchers

Grants

Awarded by National Key Research and Development Program of China


Awarded by Strategic Priority Research Program of the Chinese Academy of Sciences


Awarded by National Natural Science Foundation of China


Awarded by Open Research Project of Shouguang Facility Agriculture Center in Institute of Applied Ecology


Awarded by Liaoning Vitalization Talents Program


Funding Acknowledgements

The work was financially supported by the National Key Research and Development Program of China (grant number 2018YFC0213305, 2016YFD0800103), the Strategic Priority Research Program of the Chinese Academy of Sciences (grant number XDB15020200), the National Natural Science Foundation of China (grant number 41701309, 41671290, 41773094), the Open Research Project of Shouguang Facility Agriculture Center in Institute of Applied Ecology (grant number 2018SG-B-03), and the Liaoning Vitalization Talents Program (grant number XLYC1902016). We also acknowledge supports from the K.C. Wong Education Foundation, the Youth Innovation Promotion Association CAS, and the CAS Scholarship Fund.