DOI: 10.1016/j.atmosenv.2014.06.057
Scopus记录号: 2-s2.0-84904104122
论文题名: Ammonia emission from a permanent grassland on volcanic soil after the treatment with dairy slurry and urea
作者: Salazar F ; , Martínez-Lagos J ; , Alfaro M ; , Misselbrook T
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 95 起始页码: 591
结束页码: 597
语种: 英语
英文关键词: Ammonia volatilization
; Chile
; Slurry
; Urea
; Urease inhibitor
; Volcanic soil
Scopus关键词: Agriculture
; Ammonia
; Dairies
; Fertilizers
; Metabolism
; Soils
; Urea
; Urea fertilizers
; Agricultural activities
; Ammonia volatilization
; Chile
; Environmental and economic impacts
; Fertilizer applications
; Surface applications
; Urease inhibitors
; Volcanic soils
; Slurries
; ammonia
; urea
; urease inhibitor
; agricultural practice
; ammonia
; atmospheric pollution
; environmental fate
; grassland
; inhibitor
; livestock farming
; slurry
; urea
; volatilization
; volcanic soil
; adsorption
; agricultural slurry
; air pollution
; article
; Chile
; evapotranspiration
; falling
; fertilizer application
; grassland
; moisture
; perennial ryegrass
; priority journal
; seasonal variation
; soil
; solar radiation
; spring
; summer
; volatilization
; volcanic ash
; volcanic soil
; winter
; Chile
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: Ammonia (NH3) is an air pollutant largely emitted from agricultural activities including the application of livestock manures and fertilizers to grassland. This gas has been linked with important negative impacts on natural ecosystems. In southern Chile, the use of inorganic and organic fertilizers (e.g. slurries) has increased in cattle production systems over recent years, heightening the risk of N losses to the wider environment. The objectives of this study were to evaluate on permanent grasslands on a volcanic ash soil in southern Chile: 1) the N loss due to NH3 volatilization following surface application of dairy slurry and urea fertilizer; and 2) the effect of a urease inhibitor on NH3 emissions from urea fertilizer application. Small plot field experiments were conducted over spring, fall, winter and summer seasons, using a system of wind tunnels to measure ammonia emissions. Ammonia losses ranged from 1.8 (winter) to 26.0% (fall) and 3.1 (winter) to 20.5% (summer) of total N applied for urea and slurry, respectively. Based on the readily available N applied (ammoniacal N for dairy slurry and urea N for urea fertilizer), losses from dairy slurry were much greater, at 16.1 and 82.0%, for winter and summer, respectively. The use of a urease inhibitor proved to be an effective option to minimize the N loss due NH3 volatilization from urea fertilizer, with an average reduction of 71% across all seasons. The results of this and other recent studies regarding N losses suggest that ammonia volatilization is the main pathway of N loss from grassland systems in southern Chile on volcanic ash soils when urea and slurry are used as an N source. The use of good management practices, such as the inclusion of a urease inhibitor with urea fertilizer could have a beneficial impact on reducing N losses due NH3 volatilization and the environmental and economic impact of these emissions. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81189
Appears in Collections: 气候变化事实与影响
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作者单位: Instituto de Investigaciones Agropecuarias INIA, Carretera Panamericana Sur km 8 Norte, Osorno, Chile; Rothamsted Research, North Wyke, Okehampton, Devon EX20 2SB, United Kingdom
Recommended Citation:
Salazar F,, Martínez-Lagos J,, Alfaro M,et al. Ammonia emission from a permanent grassland on volcanic soil after the treatment with dairy slurry and urea[J]. Atmospheric Environment,2014-01-01,95