DOI: 10.1016/j.atmosenv.2017.07.034
Scopus记录号: 2-s2.0-85025085469
论文题名: Nitrification inhibitor's effect on mitigating N2O emissions was weakened by urease inhibitor in calcareous soils
作者: Zhao Z ; , Wu D ; , Bol R ; , Shi Y ; , Guo Y ; , Meng F ; , Wu W
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 166 起始页码: 142
结束页码: 150
语种: 英语
英文关键词: N2O
; Nitrification inhibitor
; Nitrogen use efficiency
; Urease inhibitor
; Wheat–maize cropping system
Scopus关键词: Agriculture
; Carbon
; Crops
; Cultivation
; Efficiency
; Fertilizers
; Metabolism
; Nitrification
; Nitrogen
; Nitrogen fertilizers
; Nitrogen oxides
; Organic carbon
; Urea
; Agricultural soils
; Calcareous soils
; Cropping systems
; Long-term effects
; Nitrification inhibitor
; Nitrogen-use efficiency
; Plant n contents
; Urease inhibitors
; Soils
; 3,4 dimethylpyrazole phosphate
; n (n butyl)thiophosphoric triamide
; nitrogen fertilizer
; nitrous oxide
; organic carbon
; phosphate
; phosphorus
; unclassified drug
; urea
; urease inhibitor
; calcareous soil
; crop production
; crop yield
; enzyme activity
; inhibitor
; nitrification
; nitrous oxide
; organic carbon
; organic soil
; soil emission
; wheat
; agricultural worker
; Article
; China
; crop production
; environmental factor
; harvest
; maize
; nitrification
; priority journal
; soil
; soil moisture
; wheat
; China
; Triticum aestivum
; Zea mays
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The application of nitrification or urease inhibitors together with nitrogen (N) fertilizer has been proposed to reduce N losses, including nitrous oxide (N2O) emissions, from agricultural soils. We measured N2O fluxes, crop yield and plant N content over 3 years (2012–2015) to evaluate the long-term effects of nitrification and/or urease inhibitors on N2O emissions, crop production and N use efficiency (NUE) in an intensively farmed wheat–maize system in northern China. The experiment consisted of the following five treatments: 1) CK, no N fertilizer; 2) U, urea; 3) NI, urea with 3,4-dimethylpyrazole phosphate (DMPP); 4) UI, urea with N-(n-butyl) thiophosphoric triamide (NBPT); and 5) NIUI, urea with combined DMPP and NBPT. Compared with the U treatment, the NI, NIUI and UI treatments mitigated cumulative N2O emissions by 55%, 40% and 21% in the maize season, respectively, and 47%, 40% and 33% in the wheat season, respectively. The annual direct emission factors of N2O for the U, NI, UI and NIUI treatments were 0.4%, 0.1%, 0.3% and 0.2%, respectively. The NIUI, NI and UI treatments increased the annual crop yield (7%, 6% and 4%) and the NUE (15%, 10% and 7%) relative to the U treatment. The NI treatment showed the best effect on mitigating N2O emissions, but its efficacy was reduced when applied together with UI. This indicates that more studies are required focusing on the performances and mechanisms of these two inhibitors in alkaline and low organic carbon soils. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82722
Appears in Collections: 气候变化事实与影响
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作者单位: Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; Institute of Bio- and Geosciences, Agrosphere (IBG–3), Research Centre Jülich, Jülich, Germany
Recommended Citation:
Zhao Z,, Wu D,, Bol R,et al. Nitrification inhibitor's effect on mitigating N2O emissions was weakened by urease inhibitor in calcareous soils[J]. Atmospheric Environment,2017-01-01,166