| |
DOI: | 10.1080/03601230701771107 |
Web URL(s): | http://www.tandfonline.com/doi/full/10.1080/03601230701771107 Last checked: 09/05/2014 Access conditions: Item is within a limited-access website http://www.tandfonline.com/doi/pdf/10.1080/03601230701771107 Last checked: 09/05/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Report |
Author(s): | Anhalt, Jennifer C.;
Moorman, Thomas B.;
Koskinen, William C. |
Author Affiliation: | Anhalt: Department of Microbiology, Iowa State University, Ames, Iowa; Moorman: United States Department of Agriculture, Agricultural Research Service, National Soil Tilth Laboratory, Ames, Iowa; Koskinen: United States Department of Agriculture, Agricultural Research Service, Soil and Water Management Research Unit, Saint Paul, Minnesota |
Title: | Degradation and sorption of imidacloprid in dissimilar surface and subsurface soils |
Source: | Journal of Environmental Science and Health: Part B: Pesticides, Food Contaminants, and Agricultural Wastes. Vol. 43, No. 3, March/April 2008, p. 207-213. |
Publishing Information: | New York: Marcel Dekker |
# of Pages: | 7 |
Related Web URL: | http://www.tandfonline.com/doi/abs/10.1080/03601230701771107#.VAoHW7S-2f8 Last checked: 09/05/2014 Notes: Abstract only |
Keywords: | TIC Keywords: Degradation; Sorption; Imidacloprid; Soils; Leaching; Pesticides; Subsoil; Microbial activity; Application rates
|
Abstract/Contents: | "Degradation and sorption/desorption are important processes affecting the leaching of pesticides through soil. This research characterized the degradation and sorption of imidacloprid (1-[(6-chloro-3-pyridinyl)-methyl]-N-nitro-2-imidazoli< >dinimine) in Drummer (silty clay loam) and Exeter (sandy loam) surface soils and their corresponding subsurface soils using sequential extraction methods over 400 days. By the end of the incubation, approximately 55% of imidacloprid applied at a rate of 1.0 mg kg-1 degraded in the Exeter sandy loam surface and subsurface soils, compared to 40% of applied imidacloprid within 300 days in Drummer surface and subsurface soils. At the 0.1 mg kg-1 application rate, dissipation was slower for all four soils. Water-extractable imidacloprid in Exeter surface soil decreased from 98% of applied at day 1 to >70% of the imidacloprid remaining after 400 d, as compared to 55% in the Drummer surface soil at day 1 and 12% at day 400. These data suggest that imidacloprid was bioavailable to degrading soil microorganisms and sorption/desorption was not the limiting factor for biodegradation. In subsurface soils >40% of 14C-benzoic acid was mineralized over 21 days, demonstrating an active microbial community. In contrast, cumulative 14CO2 was less than 1.5% of applied 14C-imidacloprid in all soils over 400 d. Qualitative differences in the microbial communities appear to limit the degradation of imidacloprid in the subsurface soils." |
Language: | English |
References: | 38 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Anhalt, J. C., T. B. Moorman, and W. C. Koskinen. 2008. Degradation and sorption of imidacloprid in dissimilar surface and subsurface soils. J. Environ. Sci. Health. 43(3):p. 207-213. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=135594 |
| If there are problems with this record, send us feedback about record 135594. |
| Choices for finding the above item: |
| DOI: 10.1080/03601230701771107 |
| Web URL(s): http://www.tandfonline.com/doi/full/10.1080/03601230701771107 Last checked: 09/05/2014 Access conditions: Item is within a limited-access website http://www.tandfonline.com/doi/pdf/10.1080/03601230701771107 Last checked: 09/05/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2199345a |
| Find from within TIC: Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |