Pesticide and nitrate movement under conservation and conventional tilled plots

Tammo Steenhuis, Robert Paulsen, Thomas Lehman Richard, Ward Staubitz, Marc Andreini, Jan Surface

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

Carbofuran, alachlor, atrazine, nitrate and bromide (a tracer) were applied to plots with conventional and conservation tillage. During the early part of the growing season the conservation tilled plots had a higher tile discharge than those under conventional tillage due to dead sod cover that suppressed evapotranspiration. Low concentrations of atrazine and carbofuran were found below the rootzone in the conservation tilled plots starting one month after application. In the conventional tillage it was not until late fall that some atrazine was detected below the rootzone. Dye studies indicated that in the plowed layer of the conventional tilled plots water and solutes were in intimate contact with the soil matrix promoting adsorption of the pesticides. The bromide tracer was not adsorbed and the bromide distribution with depth was similar for both tillage practices.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
PublisherPubl by ASCE
Pages587-595
Number of pages9
ISBN (Print)0872626660
StatePublished - Dec 1 1988
EventPlanning Now for Irrigation and Drainage in the 21st Century - Lincoln, NE, USA
Duration: Jul 18 1988Jul 21 1988

Other

OtherPlanning Now for Irrigation and Drainage in the 21st Century
CityLincoln, NE, USA
Period7/18/887/21/88

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Steenhuis, T., Paulsen, R., Richard, T. L., Staubitz, W., Andreini, M., & Surface, J. (1988). Pesticide and nitrate movement under conservation and conventional tilled plots. In Unknown Host Publication Title (pp. 587-595). Publ by ASCE.