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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1002/ps.600/full
Last checked: 01/31/2014
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http://onlinelibrary.wiley.com/doi/10.1002/ps.600/pdf
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| Publication Type:
| Refereed |
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| Author(s): | Coquet, Yves |
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| Author Affiliation: | UMR INAPG/INRA Environnement et Grandes Cultures, Thiverval-Grigon, France |
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| Title: | Variation of pesticide sorption isotherm in soil at the catchment scale |
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| Source: | Pest Management Science. Vol. 59, No. 1, January 2003, p. 69-78. |
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| Publishing Information: | London: for the Society of Chemical Industry by John Wiley & Sons |
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| # of Pages: | 10 |
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| Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1002/ps.600/abstract
Last checked: 01/31/2014
Notes: Abstract only |
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| Keywords: | TIC Keywords: Pesticides; Sorption; Atrazine; Isoproturon; Metamitron; Models; Carbon; Variations
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| Abstract/Contents: | "The variation of the sorption isotherm of pesticides has seldom been explored at the catchment scale. Such a study was conducted at the scale of a 187-ha agricultural catchment for three herbicides: atrazine, isoproturon and metamitron. Partition coefficient (Kd) values were measured in batch experiments on 51 topsoil samples, and showed moderate variability at the catchment scale (coefficient of variation CV ~ 30%). Values of Kd ranged from 0.47 to 1.70 litrekg-1 for atrazine, 0.47 to 1.81 for isoproturon, and 0.55 to 2.21 for metamitron. A clustering method was used to reduce the number of samples on which to measure sorption isotherms to 14. Sorption isotherms agreed with the Freundlich rather than the linear model. Kf parameters had CV values similiar to those for Kd, with values ranging from 0.78 to 2.13 mg1-Nf litre Nf kg-1 for atrazin, 0.61 to 1.82 for isoproturon, and 0.69 and 2.58 for metamitron. Nf exponents showed little variation (CV<5%). Nf values were between 0.86 and 0.98 for atrazine, 0.85 and 0.90 for isoproturon, and 0.82 and 0.87 for metamitron. More than 97% of the Kf catchment-scale variations could be explained by the variations of the soil organic carbon content." |
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| Language: | English |
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| References: | 48 |
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| Note: | Figures
Tables
Graphs
Maps",Top soil and texture of the Bruyéres-et-Montbérault", page 70
Maps, "Agriculture fields and sampling scheme of Bruyéres-et-Montbérault", page 70 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Coquet, Y. 2003. Variation of pesticide sorption isotherm in soil at the catchment scale. Pest Manage. Sci. 59(1):p. 69-78. |
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| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1002/ps.600/full
Last checked: 01/31/2014
Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1002/ps.600/pdf
Last checked: 01/31/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 951 .A1 P45 |
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