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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/pdfs/29/2/JEQ0290020621
Last checked: 12/14/2016
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| Publication Type:
| Refereed |
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| Author(s): | Maggiotto, S. R.;
Webb, J. A.;
Wagner-Riddle, C.;
Thurtell, G. W. |
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| Author Affiliation: | Department of Land Resource Science, University of Guelph, Guelph, ON, Canada |
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| Title: | Atmospheric polluants and trace gases |
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| Section: | Technical reports: Atmospheric pollutants and trace gases
Other records with the "Technical reports: Atmospheric pollutants and trace gases" Section
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| Source: | Journal of Environmental Quality. Vol. 29, No. 2, March/April 2000, p. 621-630. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Air pollution; Nitrous oxide; Nitrogen fertilization; Fertilizers; Slow-release fertilizers; Urea; Ammonium nitrate; Inorganic fertilizers; Nitrates; Weather; Soil temperature; Seasonal variation; Time-of-day; Volatility; Nitrogen fate; Fate
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| Abstract/Contents: | "The use of N fertilizer in agriculture is considered an important source of atmospheric N₂O and NOₓ. Choice of fertilizer type and management has been considered a method for mitigating these emissions. Micrometereorological methods were used to study the effect of inorganic N fertilizers urea (U), slow-release urea (SRU), and ammonium nitrate (AN) on fluxes of N₂O, NO, and NO₂ from turfgrass field plots during three seasons, from 1995 to 1997 (total of 353 d of measurement). Daily average fluxes after fertilizations reached a maximum of 2091 ng N₂O-N m⁻²s⁻¹ after the first fertilization with AN in 1996. The fertilized plots had significantly higher emissions (P<0.05) than the control plot, and the highest N₂O emissions were from AN in 1995 and 1996 and from SRU in 1997. Daily fluxes of up to 186 ng NO-N m⁻²s⁻¹ were measured within 1 wk following fertilization in 1997. The U plot had significantly higher NO emissions during all seasons compared with other fertilized plots. Fluxes of NOₓ during 1996 and 1997 were consistently downward, indicating that turfgrass was acting as a sink for NOₓ. NO₂ uptake seemed to be directly related to NO emissions, and the U plot presented the highest NO₂ uptake. Urea-based fertilizers seem to minimize N₂O emissions, although long-term effects of SRU still need to be studied. The higher NO emissions from U-based fertilized plots do not seem to be a problem, since NOₓ uptake occurred at higher rates than NO emission." |
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| Language: | English |
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| References: | 48 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Maggiotto, S. R., J. A. Webb, C. Wagner-Riddle, and G. W. Thurtell. 2000. Atmospheric polluants and trace gases. J. Environ. Qual. 29(2):p. 621-630. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/pdfs/29/2/JEQ0290020621
Last checked: 12/14/2016
Requires: PDF Reader
Notes: Item is within a limited-access website |
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MSU catalog number: S 900 .J6 |
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