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| DOI: | 10.1081/CSS-100103904 |
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| Web URL(s): | http://www.tandfonline.com/doi/full/10.1081/CSS-100103904
Last checked: 11/21/2016
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http://www.tandfonline.com/doi/pdf/10.1081/CSS-100103904
Last checked: 11/21/2016
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Report |
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| Author(s): | Seybold, Cathy;
Mersie, Wondi;
Delorem, Don |
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| Author Affiliation: | Seybold: United States Department of Agriculture - Natural Resource Conservation Service, Oregon State University, Corvallis, Oregon; Mersie: Agricultural Research Station, Virginia State University, Petersburg, Virginia; Delorem: Virginia Department of Agriculture and Consumer Services, Richmond, Virginia |
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| Title: | Removal and degradation of atrazine and metolachlor by vegetative filter strips on clay loam soil |
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| Source: | Communications in Soil Science and Plant Analysis. Vol. 32, No. 5/6, April 2001, p. 723-737. |
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| # of Pages: | 15 |
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| Publishing Information: | New York, NY: Marcel Dekker |
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| Related Web URL: | http://www.tandfonline.com/doi/figure/10.1081/CSS-100103904?scroll=top&needAccess=true
Last checked: 11/21/2016
Notes: Figures and tables only
http://www.tandfonline.com/doi/abstract/10.1081/CSS-100103904
Last checked: 12/15/2016
Notes: Abstract only |
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| Keywords: | TIC Keywords: Atrazine; Metolachlor; Filter strips; Surface runoff; Runoff control; Herbicide safety; Infiltration; Water pollution; Clay loam soils; Soil analysis; Sampling; Panicum virgatum; Leaching; Temperatures
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| Abstract/Contents: | "The effectiveness of filter strips, with and without vegetation, in removing dissolved atrazine and metolachlor in runoff was investigated using aluminum tilted beds set at 1% slope on Cullen clay loam soil. Runon containing atrazine and metolachlor was applied on the up-slope end of the simulated filter strips. Water samples from surface runoff, lateral subsurface movement, and leachates as well as filter strip soil samples were collected and herbicide concentrations determined. The filter strips reduced the amount of dissolved atrazine and metolachlor in runoff by about 6% of the amount applied. The absence or presence of switchgrass did not affect the amount of herbicide filtered. About 56 to 82% of the runon volume leached through the 30-cm soil depth of the filter strips. In the leachate, about 72 to 88% of the amount of applied herbicide was filtered or absorbed to the soil. The presence of switchgrass reduced the amount of runoff volume and increased the amount of leachate volume. In total, about 53 to 73% of the amount of herbicide applied was removed by the filter strips. The primary mode of dissolved herbicide removal in applied runon was infiltration and soil adsorption mechanisms. Soil herbicide concentrations were greatest at the 0 to 10 cm depth, decreased to less than 50 μg kg-1 over a 7-week period. In the filter strip soil, the presence of switchgrass significantly increased the degradation rate of metolachlor, but not atrazine. Infiltration of runoff into the filter strips is key to reducing dissolved herbicides from moving offsite. The presence of surface connected macropores is important in facilitating this process on heavier textured soils." |
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| Language: | English |
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| References: | 47 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Seybold, C., W. Mersie, and D. Delorem. 2001. Removal and degradation of atrazine and metolachlor by vegetative filter strips on clay loam soil. Commun. Soil. Sci. Plant Anal. 32(5/6):p. 723-737. |
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| DOI: 10.1081/CSS-100103904 |
| Web URL(s):
http://www.tandfonline.com/doi/full/10.1081/CSS-100103904
Last checked: 11/21/2016
Access conditions: Item is within a limited-access website
http://www.tandfonline.com/doi/pdf/10.1081/CSS-100103904
Last checked: 11/21/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2211306a |
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