Full TGIF Record # 34720
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Web URL(s):https://dl.sciencesocieties.org/publications/jeq/pdfs/24/4/JEQ0240040742
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Publication Type:
i
Refereed
Author(s):Majewski, Michael S.; McChesney, Michael M.; Woodrow, James E.; Prueger, John H.; Seiber, James N.
Author Affiliation:Water Resources Division, U.S. Geological Survey, 2800 Cottage Way, Room W-2233, Sacramentom CA 95825; University of California, Department of Envionmental Toxicology, Davis, CA 95616. Presently FMC Corp., Agricultural Chemical Group, 855 Parr Blvd., Richmond, CA 94801; Center for Environmental Sciences and Engineering, University of Nevada, Reno, NV 89557; Tilth Laboratory, USDA-Agricultural Research Service, Ames, IA 50011.
Title:Aerodynamic measurements of methyl bromide volatilization from tarped and nontarped fields
Source:Journal of Environmental Quality. Vol. 24, No. 4, July/August 1995, p. 742-752.
Publishing Information:Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
# of Pages:11
Keywords:TIC Keywords: Methyl bromide; Volatility; Fumigants; Trials; Evaluations; Chemicals; Soils; Ozone; Application rates
Abstract/Contents:"Methyl bromide (MeBr) is used extensively in agriculture as a soil fumigant and there is growing concern over the role it may play in the depletion of stratospheric ozone. Methyl bromide is applied using various techniques and very little is know about how much of the applied fumigant volatilizes into the atmosphere after the application. This field study was designed to estimate the post-application methyl bromide volatilization loss rates from two different application practices. The fields were approximately 6 km aprt in Monterey County, California, and were treated in conformity with local practices as of 1992. The MeBr was injected at a depth of 25 to 30 cm. One field was covered similtaneously with a high-barrier plastic film tarp during the application, and the other was left uncovered, but the furrows made by the injection shanks were bedded over. Volatilization fluxes were estimated using an aerodynamic-gradient technique immediately following the completion of the application process and continued for 9 d for the tarped field and 6 d for the nontarped field. The cumulative volatilization losses from the tarped field were 22% of the nominal application within the first 5 d of the experiment and about 32% of the nominal application within 9 d including the one day after the tarp was removed on Day 8 after application. In contrast, the nontarped field lost 89% of the nominal application by volatilization in 5 d. The volatilization rate from the tarped field was shown to be significantly lower than the nontarped field at a 95% confidence level."
Language:English
References:43
See Also:Other items relating to: MEBR
Note:Figures
Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Majewski, M. S., M. M. McChesney, J. E. Woodrow, J. H. Prueger, and J. N. Seiber. 1995. Aerodynamic measurements of methyl bromide volatilization from tarped and nontarped fields. J. Environ. Qual. 24(4):p. 742-752.
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Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/pdfs/24/4/JEQ0240040742
    Last checked: 12/12/2016
    Requires: PDF Reader
    Notes: Item is within a limited-access website
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