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A nEW APPROACH TO HOLISTIC nITROGEn management In CHInA

Frontiers of Agricultural Science and Engineering 2022年第3期9卷 490-510页

作者： Xuejun LIU Zhenling CUI Tianxiang HAO Lixing YUAn Ying ZHAnG Baojing GU Wen XU Hao YInG Weifeng ZHAnG Tingyu LI Xiaoyuan YAn Keith GOULDInG David KAnTER Robert HOWARTH Carly STEVEnS Jagdish LADHA Qianqian LI Lei LIU Wim DE VRIES Fusuo ZHAnG Key Laboratory of Plant-Soil Interactions of Ministry of Education National Academy of Agriculture Green DevelopmentCollege of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China Key Laboratory of Ecosystem network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Environmental&Resource Sciences Zhejiang UniversityHangzhou 310058China College of Tropical Crops Hainan UniversityHaikou 570228China State Key Laboratory of Soil and Sustainable Agriculture Nanjing Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China Department of Sustainable Agriculture Sciences Rothamsted ResearchHarpenden AL52JQUK Department of Environmental Studies New York UniversityNew YorkNY 10003USA Department of Ecology&Evolutionary Biology Cornell UniversityIthacaNY 14853USA Lancaster Environment Centre Lancaster UniversityLancasterLA14YQUK Department of Plant Sciences University of CaliforniaDavisDavisCA 95616USA School of Life Sciences Jiangsu Normal UniversityXuzhou 221116China College of Earth and Environmental Sciences Lanzhou UniversityLanzhou 730000China Environmental Systems Analysis Group Wageningen University&ResearchPO Box 476700 AA Wageningenthe Netherlands.

Since the 1980s,the widespread use of n fertilizer has not only resulted in a strong increase in agricultural productivity but also caused a number of environmental problems,induced by excess reactive n emissions.A range of approaches to improve n management for increased agricultural production together with reduced environmental impacts has been *** 4R principles(right product,right amount,right time and right place)for n fertilizer application have been essential for improving crop productivity and n use efficiency while reducing n *** example,site-specific n management(as part of 4R practice)reduced n fertilizer use by 32%and increased yield by 5%in ***,it has not been enough to overcome the challenge of producing more food with reduced impact on the environment and *** paper proposes a new framework of food-chainnitrogen-management(FCnM).This involves good n management including the recycling of organic manures,optimized crop and animal production and improved human diets,with the aim of maximizing resource use efficiency and minimizing environmental *** could meet future challenges for food demand,resource sustainability and environmental safety,key issues for green agricultural transformation in China and other countries.

关键词： 4R technology food chain n management n use efficiency soil-crop system sustainable management

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