Nitrous oxide(N2O)emissions make up a significant part of agricultural greenhouse gas emissions.There is an urgent need to identify new approaches to the mitigation of these emissions with emerging technology.In this ...Nitrous oxide(N2O)emissions make up a significant part of agricultural greenhouse gas emissions.There is an urgent need to identify new approaches to the mitigation of these emissions with emerging technology.In this short review four approaches to precision managements of agricultural systems are described based on examples of work being undertaken in the UK and New Zealand.They offer the opportunity for N2 O mitigation without any reduction in productivity.These approaches depend upon new sensor technology,modeling and spatial information with which to make management decisions and interventions that can both improve agricultural productivity and environmental protection.展开更多
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 redu...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.展开更多
基金the Scottish Government Strategic Research ProgrammeN-Circle project(BB/N013484/1)+1 种基金Teagasc in Irelandfunded by the New Zealand Government through the Global Research Alliance。
文摘Nitrous oxide(N2O)emissions make up a significant part of agricultural greenhouse gas emissions.There is an urgent need to identify new approaches to the mitigation of these emissions with emerging technology.In this short review four approaches to precision managements of agricultural systems are described based on examples of work being undertaken in the UK and New Zealand.They offer the opportunity for N2 O mitigation without any reduction in productivity.These approaches depend upon new sensor technology,modeling and spatial information with which to make management decisions and interventions that can both improve agricultural productivity and environmental protection.
基金supported through Newton Fund via UK BBSRC/NERC(BB/N013484/1 and BB/N013468/1)。
文摘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.
