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Herbicide Transport in Goodwater Creek Experimental Watershed: II. Long-Term Research on Acetochlor, Alachlor, Metolachlor, and Metribuzin1

2010; Wiley; Volume: 47; Issue: 2 Linguagem: Inglês

10.1111/j.1752-1688.2010.00504.x

1752-1688

Robert N. Lerch, E. J. Sadler, Claire Baffaut, Newell R. Kitchen, Kenneth A. Sudduth,

Pharmaceutical and Antibiotic Environmental Impacts

JAWRA Journal of the American Water Resources AssociationVolume 47, Issue 2 p. 224-238 Herbicide Transport in Goodwater Creek Experimental Watershed: II. Long-Term Research on Acetochlor, Alachlor, Metolachlor, and Metribuzin† R.N. Lerch, R.N. Lerch Respectively, Soil Scientist (Lerch, Sadler, Kitchen), Hydrologist (Baffaut), Agricultural Engineer (Sudduth), USDA-Agricultural Research Service, Cropping Systems and Water Quality Research Unit, 1406 Rollins St., Rm. 265, Columbia, Missouri 65211Search for more papers by this authorE.J. Sadler, E.J. Sadler Respectively, Soil Scientist (Lerch, Sadler, Kitchen), Hydrologist (Baffaut), Agricultural Engineer (Sudduth), USDA-Agricultural Research Service, Cropping Systems and Water Quality Research Unit, 1406 Rollins St., Rm. 265, Columbia, Missouri 65211Search for more papers by this authorC. Baffaut, C. Baffaut Respectively, Soil Scientist (Lerch, Sadler, Kitchen), Hydrologist (Baffaut), Agricultural Engineer (Sudduth), USDA-Agricultural Research Service, Cropping Systems and Water Quality Research Unit, 1406 Rollins St., Rm. 265, Columbia, Missouri 65211Search for more papers by this authorN.R. Kitchen, N.R. Kitchen Respectively, Soil Scientist (Lerch, Sadler, Kitchen), Hydrologist (Baffaut), Agricultural Engineer (Sudduth), USDA-Agricultural Research Service, Cropping Systems and Water Quality Research Unit, 1406 Rollins St., Rm. 265, Columbia, Missouri 65211Search for more papers by this authorK.A. Sudduth, K.A. Sudduth Respectively, Soil Scientist (Lerch, Sadler, Kitchen), Hydrologist (Baffaut), Agricultural Engineer (Sudduth), USDA-Agricultural Research Service, Cropping Systems and Water Quality Research Unit, 1406 Rollins St., Rm. 265, Columbia, Missouri 65211Search for more papers by this author R.N. Lerch, R.N. Lerch Respectively, Soil Scientist (Lerch, Sadler, Kitchen), Hydrologist (Baffaut), Agricultural Engineer (Sudduth), USDA-Agricultural Research Service, Cropping Systems and Water Quality Research Unit, 1406 Rollins St., Rm. 265, Columbia, Missouri 65211Search for more papers by this authorE.J. Sadler, E.J. Sadler Respectively, Soil Scientist (Lerch, Sadler, Kitchen), Hydrologist (Baffaut), Agricultural Engineer (Sudduth), USDA-Agricultural Research Service, Cropping Systems and Water Quality Research Unit, 1406 Rollins St., Rm. 265, Columbia, Missouri 65211Search for more papers by this authorC. Baffaut, C. Baffaut Respectively, Soil Scientist (Lerch, Sadler, Kitchen), Hydrologist (Baffaut), Agricultural Engineer (Sudduth), USDA-Agricultural Research Service, Cropping Systems and Water Quality Research Unit, 1406 Rollins St., Rm. 265, Columbia, Missouri 65211Search for more papers by this authorN.R. Kitchen, N.R. Kitchen Respectively, Soil Scientist (Lerch, Sadler, Kitchen), Hydrologist (Baffaut), Agricultural Engineer (Sudduth), USDA-Agricultural Research Service, Cropping Systems and Water Quality Research Unit, 1406 Rollins St., Rm. 265, Columbia, Missouri 65211Search for more papers by this authorK.A. Sudduth, K.A. Sudduth Respectively, Soil Scientist (Lerch, Sadler, Kitchen), Hydrologist (Baffaut), Agricultural Engineer (Sudduth), USDA-Agricultural Research Service, Cropping Systems and Water Quality Research Unit, 1406 Rollins St., Rm. 265, Columbia, Missouri 65211Search for more papers by this author First published: 06 December 2010 https://doi.org/10.1111/j.1752-1688.2010.00504.xCitations: 14 (E-Mail/Lerch: [email protected]). † Paper No. JAWRA-09-0147-P of the Journal of the American Water Resources Association (JAWRA). Discussions are open until six months from print publication. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract Lerch, R.N., E.J. Sadler, C. Baffaut, N.R. Kitchen, and K.A. Sudduth, 2010. Herbicide Transport in Goodwater Creek Experimental Watershed: II. Long-Term Research on Acetochlor, Alachlor, Metolachlor, and Metribuzin. Journal of the American Water Resources Association (JAWRA) 1-15. DOI: 10.1111/j.1752-1688.2010.00504.x Abstract: Farmers in the Midwestern United States continue to be reliant on soil-applied herbicides for weed control in crop production, and herbicide contamination of streams remains an environmental problem. The main objective of this study was to analyze trends in concentration and load of acetochlor, alachlor, metolachlor, and metribuzin in Goodwater Creek Experimental Watershed (GCEW) from 1992 to 2006. A secondary objective was to document the effects of best management practices (BMPs) implemented within GCEW on herbicide transport trends. Median relative herbicide loads, as a percent of applied, were 3.7% for metolachlor, 1.3% for metribuzin, 0.36% for acetochlor, and 0.18% for alachlor. The major decrease in alachlor use and increase in acetochlor use caused shifts in flow-weighted concentrations that were observed over the entire concentration range. The smaller decrease in metolachlor use led to a consistent decreasing time trend only for the upper end of the concentration distribution. Metribuzin also showed moderate decreases in concentration with time since 1998. Annual loads were generally correlated to second quarter discharge. Despite extensive education efforts in the watershed, conservation BMPs within GCEW were mainly implemented to control erosion, and therefore had no discernable impact on reducing herbicide transport. Overall, changes in herbicide use and second quarter discharge had the greatest effect on trends in flow-weighted concentration and annual load. Literature Cited Battaglin, W.A. and D.A. Goolsby, 1999. Are Shifts in Herbicide Use Reflected in Concentration Changes in Midwestern Rivers? Environmental Science and Technology 33: 2917-2925. Battaglin, W.A., D.W. Kolpin, E.A. Scribner, K.M. Kuivila, and M.W. Sandstrom, 2005. 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Soil and Tillage Research 30: 49-74. Citing Literature Volume47, Issue2April 2011Pages 224-238 ReferencesRelatedInformation