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Nitrogen use efficiency and N2O and NH3 losses attributed to three fertiliser types applied to an intensively managed silage crop

文献类型：期刊论文

作者Cowan Nicholas5; Levy Peter5; Moring Andrea3; Simmons Ivan5; Bache Colin5; Stephens Amy5; Marinheiro Joana5; Brichet Jocelyn5; Song Ling1; Pickard Amy5
刊名BIOGEOSCIENCES
出版日期2019
卷号16期号:23页码:4731-4745
ISSN号1726-4170
DOI10.5194/bg-16-4731-2019
产权排序2
通讯作者Cowan, Nicholas(nicwan11@ceh.ac.uk)
文献子类Article
英文摘要Three different nitrogen (N) fertiliser types, ammonium nitrate, urea and urea coated with a urease inhibitor (Agrotain (R)), were applied at standard rates (70 kg N ha(-1)) to experimental plots in a typical and intensively managed grassland area at the Easter Bush Farm Estate (Scotland). The nitrogen use efficiency of the fertilisers was investigated as well as nitrogen losses in the form of nitrous oxide fluxes (N2O) and ammonia (NH3) during fertilisation events in the 2016 and 2017 growing seasons. Nitrous oxide was measured by the standard static chamber technique and analysed using Bayesian statistics. Ammonia was measured using passive samplers combined with the Flux Interpretation by Dispersion and Exchange over Short Range (FIDES) inverse dispersion model. On average, fertilisation with ammonium nitrate supported the largest yields and had the highest nitrogen use efficiency, but as large spatial and seasonal variation persisted across the plots, yield differences between the three fertiliser types and zero N control were not consistent. Overall, ammonium nitrate treatment was found to increase yields significantly (p value < 0.05) when compared to the urea fertilisers used in this study. Ammonium nitrate was the largest emitter of N2O (0.76% of applied N), and the urea was the largest emitter of NH3 (16.5% of applied N). Urea coated with a urease inhibitor did not significantly increase yields when compared to uncoated urea; however, ammonia emissions were only 10% of the magnitude measured for the uncoated urea, and N2O emissions were only 47% of the magnitude of those measured for ammonium nitrate fertiliser. This study suggests that urea coated with a urease inhibitor is environmentally the best choice in regards to nitrogen pollution, but because of its larger cost and lack of agronomic benefits, it is not economically attractive when compared to ammonium nitrate.
电子版国际标准刊号1726-4189
WOS关键词AMMONIA VOLATILIZATION ; UREASE INHIBITOR ; OXIDE EMISSIONS ; NITRIFICATION INHIBITORS ; GLOBAL NITROGEN ; NITRATE ; FLUXES ; AGRICULTURE ; MODEL ; WHEAT
资助项目BBSRC[BB/N013468/1]
WOS研究方向Environmental Sciences & Ecology ; Geology
语种英语
WOS记录号WOS:000502996600001
出版者COPERNICUS GESELLSCHAFT MBH
资助机构BBSRC
源URL[http://ir.imde.ac.cn/handle/131551/33560]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者Cowan Nicholas
作者单位1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;
2.Institut National de la Recherche Agronomique, UMR ECOSYS, INRA, AgroParisTech, Univerité Paris-Saclay, 78850 Thiverval-Grignon, France
3.School of GeoSciences, University of Edinburgh, High School Yards, Edinburgh EH8 9XP, UK;
4.Scotland’s Rural College, King’s Buildings, West Mains Road, Edinburgh EH9 3JG, UK;
5.Centre for Ecology and Hydrology, Bush Estate, Penicuik EH34 5DR, UK;
推荐引用方式
GB/T 7714		 Cowan Nicholas,Levy Peter,Moring Andrea,et al. Nitrogen use efficiency and N2O and NH3 losses attributed to three fertiliser types applied to an intensively managed silage crop[J]. BIOGEOSCIENCES,2019,16(23):4731-4745.
APA Cowan Nicholas.,Levy Peter.,Moring Andrea.,Simmons Ivan.,Bache Colin.,...&Skiba Ute.(2019).Nitrogen use efficiency and N2O and NH3 losses attributed to three fertiliser types applied to an intensively managed silage crop.BIOGEOSCIENCES,16(23),4731-4745.
MLA Cowan Nicholas,et al."Nitrogen use efficiency and N2O and NH3 losses attributed to three fertiliser types applied to an intensively managed silage crop".BIOGEOSCIENCES 16.23(2019):4731-4745.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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