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| DOI: | 10.2136/vzj2017.07.0139 |
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| Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.2136/vzj2017.07.0139
Last checked: 02/20/2024
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https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/vzj2017.07.0139
Last checked: 02/20/2024
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Satkowski, Laura E.;
Goyne, Keith W.;
Anderson, Stephen H.;
Lerch, Robert N.;
Webb, Elisabeth B.;
Snow, Daniel D. |
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| Author Affiliation: | Satkowski, Goyne, and Anderson: School of Natural Resources, Univ. of Missouri, Columbia, MO; Lerch: USDA-ARS, Cropping Systems and Water Quality Research Unit, Columbia, MO; Webb: School of Natural Resources, Univ. of Missouri, Columbia, MO and USGS, Missouri Cooperative Fish and Wildlife Research Unit, Columbia, MO; Snow: Water Sciences Lab, Univ. of Nebraska, Lincoln, NE |
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| Title: | Imidacloprid sorption and transport in cropland, grass buffer, and riparian buffer soils |
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| Source: | Vadose Zone Journal. Vol. 17, No. 1, 2018, p. [1-12]. |
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| Publishing Information: | Madison, Wisconsin: Soil Science Society of America |
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| # of Pages: | 12 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/vzj/supplements/17/170139-supplement1.pdf
Last checked: 09/05/2018
Notes: Supplemental information only |
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| Keywords: | TIC Keywords: Agroecosystems; Buffer zones; Imidacloprid; Insecticide evaluation; Mobility; Riparian zones; Soil sorption; Transport (chemical)
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| Abstract/Contents: | "An understanding of neonicotinoid sorption and transport in soil is critical for determining and mitigating environmental risk associated with the most widely used class of insecticides. The objective of this study was to evaluate mobility and transport of the neonicotinoid imidacloprid (ICD) in soils collected from cropland, grass vegetative buffer strip (VBS), and riparian VBS soils. Soils were collected at six randomly chosen sites within grids that encompassed all three land uses. Single-point equilibrium batch sorption experiments were conducted using radio-labeled (14C) ICD to determine solid-solution partition coefficients (Kd). Column experiments were conducted using soils collected from the three vegetation treatments at one site by packing soil into glass columns. Water flow was characterized by applying Br- as a nonreactive tracer. A single pulse of 14CICD was then applied, and ICD leaching was monitored for up to 45 d. Bromide and ICD breakthrough curves for each column were simulated using CXTFIT and HYDRUS-1D models. Sorption results indicated that ICD sorbs more strongly to riparian VBS (Kd = 22.6 L kg-1) than crop (Kd = 11.3 L kg-1) soils. Soil organic C was the strongest predictor of ICD sorption (p < 0.0001). The column transport study found mean peak concentrations of ICD at 5.83, 10.84, and 23.8 pore volumes for crop, grass VBS, and riparian VBS soils, respectively. HYDRUS-1D results indicated that the two-site, one-rate linear reversible model best described results of the breakthrough curves, indicating the complexity of ICD sorption and demonstrating its mobility in soil. Greater sorption and longer retention by the grass and riparian VBS soils than the cropland soil suggests that VBS may be a viable means to mitigate ICD loss from agroecosystems, thereby preventing ICD transport into surface water, groundwater, or drinking water resources." |
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| Language: | English |
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| References: | 65 |
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| Note: | Summary appears in CSA News, 63(8) August 2018, p. 8
Figures
Tables
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Satkowski, L. E., K. W. Goyne, S. H. Anderson, R. N. Lerch, E. B. Webb, and D. D. Snow. 2018. Imidacloprid sorption and transport in cropland, grass buffer, and riparian buffer soils. Vadose Zone J. 17(1):p. [1-12]. |
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| DOI: 10.2136/vzj2017.07.0139 |
| Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2136/vzj2017.07.0139
Last checked: 02/20/2024
Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/vzj2017.07.0139
Last checked: 02/20/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b4896766 |
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