Enhanced atrazine degradation is widespread across the United States

被引：20

作者：

Mueller, Thomas C. ^{[1
]}

Parker, Ethan T. ^{[1
]}

Steckel, Larry ^{[2
]}

Clay, Sharon A. ^{[3
]}

Owen, Micheal D. K. ^{[4
]}

Curran, William S. ^{[5
]}

Currie, Randall ^{[6
]}

Scott, Robert ^{[7
]}

Sprague, Christy ^{[8
]}

Stephenson, Daniel O. ^{[9
]}

Miller, Donnie K. ^{[10
]}

Prostko, Eric P. ^{[11
]}

Grichar, W. James ^{[12
]}

Martin, James ^{[13
]}

Kruz, L. Jason ^{[14
]}

Bradley, Kevin ^{[15
]}

Bernards, Mark L. ^{[16
]}

Dotray, Peter ^{[17
]}

Knezevic, Stevan ^{[18
]}

Davis, Vince ^{[19
]}

Klein, Robert ^{[20
]}

机构：

[1] Univ Tennessee, Knoxville, TN 37996 USA

[2] Univ Tennessee, West TN Res & Educ Ctr, Jackson, TN USA

[3] South Dakota State Univ, Brookings, SD USA

[4] Iowa State Univ, Ames, IA USA

[5] Penn State Univ, University Pk, PA 16802 USA

[6] Kansas State Univ, Manhattan, KS 66506 USA

[7] Univ Arkansas, Lonoke, AR USA

[8] Michigan State Univ, E Lansing, MI 48824 USA

[9] LSU AgCtr, Alexandria, LA USA

[10] LSU AgCtr, St Joseph, LA USA

[11] Univ Georgia, Tifton, GA USA

[12] Texas A&M AgriLife Res, Beeville, TX USA

[13] Univ Kentucky, Princeton, KY USA

[14] Mississippi State Univ, Stoneville, MS USA

[15] Univ Missouri, Columbia, MO USA

[16] Western Illinois Univ, Macomb, IL 61455 USA

[17] Texas Tech Univ, Lubbock, TX 79409 USA

[18] Univ Nebraska, Concord, NE USA

[19] Univ Wisconsin, Madison, WI USA

[20] Univ Nebraska, North Platte, NE USA

来源：

PEST MANAGEMENT SCIENCE | 2017年 / 73卷 / 09期

关键词：

atrazine; enhanced degradation; environmental fate; GLUTATHIONE CONJUGATION; MICROBIAL-DEGRADATION; DEGRADING BACTERIA; MISSISSIPPI DELTA; MAJOR METABOLITES; SURFACE-WATER; SOIL DEPTH; MINERALIZATION; HERBICIDES; PERSISTENCE;

D O I：

10.1002/ps.4566

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

BACKGROUNDAtrazine (ATZ) has been a key herbicide for annual weed control in corn, with both a soil and post-emergence vegetation application period. Although enhanced ATZ degradation in soil with a history of ATZ use has been reported, the extent and rate of degradation in the US Corn Belt is uncertain. We show that enhanced ATZ degradation exists across much of the country. RESULTSSoils from 15 of 16 surveyed states had enhanced ATZ degradation. The average ATZ half-life was only 2.3 days in ATZ history soils, compared with an average 14.5 days in soils with no previous ATZ use, meaning that ATZ degrades an average 6 times faster in soils with previous ATZ use. CONCLUSIONWhen ATZ is used for several years, enhanced degradation will undoubtedly change the way ATZ is used in agronomic crops and also its ultimate environmental fate. (c) 2017 Society of Chemical Industry

引用

页码：1953 / 1961

页数：9