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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/pdfs/26/4/JEQ0260041107
Last checked: 12/12/2016
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| Publication Type:
| Refereed |
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| Author(s): | Gan, J.;
Yates, S. R.;
Ohr, H. D.;
Sims, J. J. |
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| Author Affiliation: | J. Gan and S. R. Yates, USDA-ARS, Soil Physics and Pesticides Research Unit, U.S. Salinity Laboratory, Riverside, CA 92507; H. D. Ohr and J. J. Sims Department of Plant Pathology, Universisty of California, Riverside, CA 92521 |
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| Title: | Volatilization and distribution of methyl iodide and methyl bromide after subsoil application |
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| Section: | Organic Chemicals in the Environment
Other records with the "Organic Chemicals in the Environment" Section
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| Source: | Journal of Environmental Quality. Vol. 26, No. 4, July/August 1997, p. 1107-1115. |
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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: | 9 |
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| Keywords: | TIC Keywords: Volatility; Gases; Methyl iodide; Environmental effects; Methyl bromide; Soil fumigants; Fate; Soil fumigation
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| Abstract/Contents: | "Methyl iodide (MeI) was recently proposed as a potential replacement for methyl bromide (MeBr) as a soil fumigant, but little is known about its fate in the environment. Volatilization of MeI was measured and compared with that of MeBr in packed soil columns with different soils and under various soil surface conditions. Under the same conditions, MeI volatilization loss was greater than that of MeBr, and the enhanced volatilization was attributed to its slower degradation in soil. In the Greenfield sandy loam (course-loamy, mixed, thermic Typic Haploxeralfs), the greatest loss occurred in a nontarped application (78% for MeI and 62% for MeBr), with the smallest loss in a high-barrier plastic-tarped treatment (28% for MeI and 24% for MeBr). Covering the soil surface with polyethylene film was ineffective in preventing MeI or MeBr volatilization. Volatilization losses of MeI and MeBr were also influenced by soil type, and were significantly less from soils that were high in organic matter content and capable of rapidly degrading the fumigants. Ten days after a point application (30 cm) in field plots covered with polyethylene film, higher MeI concentrations were detected at most depths. Because of its longer persistence in soil, MeI may have a greater tendency to reach groundwater than MeBr." |
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| Language: | English |
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| References: | 18 |
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| See Also: | Other items relating to: MEBR |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gan, J., S. R. Yates, H. D. Ohr, and J. J. Sims. 1997. Volatilization and distribution of methyl iodide and methyl bromide after subsoil application. J. Environ. Qual. 26(4):p. 1107-1115. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/pdfs/26/4/JEQ0260041107
Last checked: 12/12/2016
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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