| Nitrogen use efficiency and N2O and NH3 losses attributed to three fertiliser types applied to an intensively managed silage crop | |
Cowan Nicholas1; Levy Peter1; Moring Andrea4; Simmons Ivan1; Bache Colin1; Stephens Amy1; Marinheiro Joana1; Brichet Jocelyn1; Song Ling2 ; Pickard Amy1; McNeill Connie1; McDonald Roseanne1; Maire Juliette1,3,4; Loubet Benjamin5; Voylokov Polina5; Sutton Mark1; Skiba Ute1
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| Corresponding Author | Cowan, Nicholas(nicwan11@ceh.ac.uk) |
| 2019 | |
| Source Publication | BIOGEOSCIENCES
 |
| ISSN | 1726-4170 |
| EISSN | 1726-4189 |
| Volume | 16Issue:23Pages:4731-4745 |
| Subtype | Article |
| Contribution Rank | 2 |
| Abstract | 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. |
| DOI | 10.5194/bg-16-4731-2019 |
| Indexed By | SCI |
| WOS Keyword | AMMONIA VOLATILIZATION ; UREASE INHIBITOR ; OXIDE EMISSIONS ; NITRIFICATION INHIBITORS ; GLOBAL NITROGEN ; NITRATE ; FLUXES ; AGRICULTURE ; MODEL ; WHEAT |
| Language | 英语 |
| Funding Project | BBSRC[BB/N013468/1] |
| WOS Research Area | Environmental Sciences & Ecology ; Geology |
| WOS Subject | Ecology ; Geosciences, Multidisciplinary |
| WOS ID | WOS:000502996600001 |
| Funding Organization | BBSRC |
| Publisher | COPERNICUS GESELLSCHAFT MBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/33560 |
| Collection | 山地表生过程与生态调控重点实验室 |
| Corresponding Author | Cowan Nicholas |
| Affiliation | 1.Centre for Ecology and Hydrology, Bush Estate, Penicuik EH34 5DR, UK; 2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 3.Scotland’s Rural College, King’s Buildings, West Mains Road, Edinburgh EH9 3JG, UK; 4.School of GeoSciences, University of Edinburgh, High School Yards, Edinburgh EH8 9XP, UK; 5.Institut National de la Recherche Agronomique, UMR ECOSYS, INRA, AgroParisTech, Univerité Paris-Saclay, 78850 Thiverval-Grignon, France |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| bg-16-4731-2019.pdf（864KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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