PROGRESS ON IMPROVING AGRICULTURAL NITROGEN USE EFFICIENCY: UK−CHINA VIRTUAL JOINT CENTERS ON NITROGEN AGRONOMY  

作　　者：Tom MISSELBROOK Zhaohai BAI Zejiang CAI Weidong CAO Alison CARSWELL Nicholas COWAN Zhenling CUI David RCHADWICK Bridget EMMETT Keith GOULDING Rui JIANG Davey LJONES Xiaotang JU Hongbin LIU Yuelai LU Lin MA David POWLSON Robert MREES Ute SKIBA Pete SMITH Roger SYLVESTER-BRADLEY John WILLIAMS Lianhai WU Minggang XU Wen XU Fusuo ZHANG Junling ZHANG Jianbin ZHOU Xuejun LIU 

机构地区：[1]Rothamsted Research,North Wyke,Okehampton,Devon EX202SB,UK [2]Center for Agricultural Resources Research,Chinese Academy of Sciences,Shijiazhuang 050021,China [3]Qiyang Agro-ecosystem of National Field Experimental Station,Yongzhou 426182,China [4]College of Resources and Environmental Sciences,Nanjing Agricultural University,Nanjing 210095,China [5]UK Centre for Ecology and Hydrology,Bush Estate,Penicuik,Midlothian EH260QB,UK [6]College of Resources and Environmental Sciences,China Agricultural University,Beijing 100193,China [7]School of Natural Sciences,Bangor University,Bangor LL572UW,UK [8]UK Centre for Ecology and Hydrology,Bangor LL572UW,UK [9]Rothamsted Research,Harpenden,Hertfordshire AL52JQ,UK [10]College of Resources and Environment,Northwest A&F University,Yangling 712100,China [11]Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China [12]School of International Development,University of East Anglia,Norwich,Norfolk NR47TJ,UK [13]Scotland’s Rural College(SRUC),West Mains Road,Edinburgh,EH93JG,UK [14]Institute of Biological and Environmental Sciences,University of Aberdeen,Aberdeen AB243FX,UK [15]ADAS Boxworth,Battlegate Road,Boxworth,Cambridge CB234NN,UK.

出　　处：《Frontiers of Agricultural Science and Engineering》2022年第3期475-489,共15页农业科学与工程前沿（英文版）

基　　金：supported through Newton Fund via UK BBSRC/NERC(BB/N013484/1 and BB/N013468/1)。

摘　　要：Two virtual joint centers for nitrogen agronomy were established between the UK and China to facilitate collaborative research aimed at improving nitrogen use efficiency(NUE)in agricultural production systems and reducing losses of reactive N to the environment.Major focus areas were improving fertilizer NUE,use of livestock manures,soil health,and policy development and knowledge exchange.Improvements to fertilizer NUE included attention to application rate in the context of yield potential and economic considerations and the potential of improved practices including enhanced efficiency fertilizers,plastic film mulching and cropping design.Improved utilization of livestock manures requires knowledge of the available nutrient content,appropriate manure processing technologies and integrated nutrient management practices.Soil carbon,acidification and biodiversity were considered as important aspects of soil health.Both centers identified a range of potential actions that could be taken to improve N management,and the research conducted has highlighted the importance of developing a systemslevel approach to assessing improvement in the overall efficiency of N management and avoiding unintended secondary effects from individual interventions.Within this context,the management of fertilizer emissions and livestock manure at the farm and regional scales appear to be particularly important targets for mitigation.

关 键 词：CINAg N-CIRCLE nitrogen use efficiency reactive nitrogen sustainable production 

分 类 号：S181[农业科学—农业基础科学]