Leaching of trifluralin, linuron, prometryne, and cotoran in soil columns

Author

Shahiedy Ibrahim Shahied

Date of Award

12-1965

Degree Type

Thesis

Degree Name

Master of Science

Major

Agronomy

Major Professor

Henry Andrews

Committee Members

Horace Smith, Homer Swingle

Abstract

An understanding of the persistence of herbicides in soils is necessary in order to prevent possible injury both to crop plants being treated and to succeeding crops in the rotation.

In order to be acceptable for use, a preemergence herbicide must insure that the crop will obtain a good competitive position and must therefore remain in an active condition in the zone of weed seed germination until the crop has attained such a position. The active condition is dependent upon many variables—the herbicide's chemical stability and solubility, temperature, soil type, rainfall, and microorganism activity.

One of the major factors in herbicide inactivation is leaching. Therefore, a study was made of the leachability of N, N-di-n-propyl-2, 6-dinitro-4-trifluromethaniline (trifluralin); 3(3,4-dichlorophenyl)-1-methoxy-l-methyl urea (linuron); 2,4-bis(isopropylamino)-6-methylmercapto-striazine (prometryne); and 3-(m-trifluoromethylphenyl)-1,1- dimethylurea (cotoran) in four agriculturally important soils.

Recommended Citation

Shahied, Shahiedy Ibrahim, "Leaching of trifluralin, linuron, prometryne, and cotoran in soil columns. " Master's Thesis, University of Tennessee, 1965.
https://trace.tennessee.edu/utk_gradthes/8636