Fate and transport of pesticides in a Virginia Coastal Plain soil

Simple item page
dc.contributorGeological Survey (U.S.)en
dc.contributorVirginia Water Resources Research Centeren
dc.contributor.authorHeatwole, Conrad D.en
dc.contributor.authorZacharias, Sebastianen
dc.contributor.authorMostaghimi, Saieden
dc.contributor.authorDillaha, Theo A. IIIen
dc.contributor.authorYoung, Roderick W.en
dc.contributor.departmentVirginia Water Resources Research Centeren
dc.coverage.countryUnited Statesen
dc.coverage.stateVirginiaen
dc.date.accessioned2014-03-15T17:14:50Zen
dc.date.available2014-03-15T17:14:50Zen
dc.date.issued1992en
dc.description.abstractThe fate and transport of atrazine, metolachlor, and bromide as a tracer, were characterized through surface runoff monitoring and soil core sampling on no-till and conventionally tilled field plots planted with corn. A rainfall simulator was used to generate a surface runoff event within 48 hours of pesticide application. In comparison with the conventional-tillage plot, the no-till plot yielded 32% of the runoff volume, 8% of the sediment, and 50% of the pesticide mass. Total losses of atrazine and metolachlor in surface runoff were 0.5-1 .5% of the amount applied, with the greatest losses associated with conventional tillage. Significant precipitation in the early stages of the study resulted in rapid leaching of the chemicals in both plots. Statistical tests show that chemicals moved deeper in the no-till plot, as compared to the conventional-tillage plot, in the first two weeks after application. However, statistical analysis of the remaining period shows no consistent differences in pesticide concentrations in the soil profile based on tillage practice. Atrazine dissipation was higher in the no-till plot, and there was a significant carryover of the pesticide in both plots at the end of the 157-day period.en
dc.description.notes... funds provided in part by U.S. Geological Survey, Department of the Interior --P. iien
dc.format.extentx, 116 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.oclc26607016en
dc.identifier.urihttp://hdl.handle.net/10919/46618en
dc.language.isoen_USen
dc.publisherVirginia Water Resources Research Center, Virginia Polytechnic Institute and State Universityen
dc.relation.ispartofseriesBulletin (Virginia Water Resources Research Center) ; 175en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccTD201 .V57en
dc.subject.lcshPesticides -- Environmental aspects -- Virginiaen
dc.subject.lcshSoil absorption and adsorption -- Virginiaen
dc.subject.lcshSoils -- Leachingen
dc.subject.lcshGroundwater -- Pollution -- Virginiaen
dc.subject.lcshTillage -- Environmental aspects -- Virginiaen
dc.titleFate and transport of pesticides in a Virginia Coastal Plain soilen
dc.typeReporten
dc.type.dcmitypeTexten

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
WRRC_Bull_175.pdf
Size:
38.28 MB
Format:
Adobe Portable Document Format
Download

Collections

Bulletins, Virginia Water Resources Research Center