Herbicide and Nitrate in Surface and Ground Water: Results from the Iowa Management Systems Evaluation Area

dc.contributor.author Moorman, Thomas
dc.contributor.author Hatfield, Jerry
dc.contributor.author Kanwar, Rameshwar
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-14T16:20:31.000
dc.date.accessioned 2020-06-29T22:40:52Z
dc.date.available 2020-06-29T22:40:52Z
dc.date.embargo 2014-09-21
dc.date.issued 2004-04-13
dc.description.abstract <p>Herbicides are transported through subsurface drainage to surface waters from corn-growing areas of the USA and Canada. Herbicide losses are highly variable, ranging between 0.01 to 10 g/ha. The magnitude of herbicide loss results from precipitation patterns, herbicide-soil interactions, and farming practices. This report reviews existing literature and presents new research concerning effects of farming practices on herbicide losses in drainage water. Conservation tillage practices which increase infiltration tend to increase herbicide losses. Increasing intensity of drainage and increased frequency and rate of herbicide use also increase herbicide losses. Banding lowers the application rate and reduces annual losses and average concentrations of atrazine compared to broadcast applications. Metolachlor losses were reduced by banding, but the effect was only statistically significant in continuous corn systems.</p>
dc.description.comments <p>This book chapter is from <em>ACS Symposium Series</em> 877 (2004): 235–248, doi:<a href="http://dx.doi.org/10.1021/bk-2004-0877.ch017" target="_blank">10.1021/bk-2004-0877.ch017</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/563/
dc.identifier.articleid 1874
dc.identifier.contextkey 6144099
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/563
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1343
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/563/2004_Moorman_HerbicideNitrate.pdf|||Sat Jan 15 00:57:36 UTC 2022
dc.source.uri 10.1021/bk-2004-0877.ch017
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Water Resource Management
dc.title Herbicide and Nitrate in Surface and Ground Water: Results from the Iowa Management Systems Evaluation Area
dc.type article
dc.type.genre book_chapter
dspace.entity.type Publication
relation.isAuthorOfPublication 5210e67e-b8da-4e17-be3f-843a09381196
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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