About Us | Help Videos | Contact Us | Subscriptions
 

Abstract

 

This article in JEQ

  1. Vol. 19 No. 4, p. 701-706
     
    Received: Nov 28, 1989
    Published: Oct, 1990


    * Corresponding author(s):
 View
 Download
 Alerts
 Permissions
 Share

doi:10.2134/jeq1990.00472425001900040012x

Leaching of Chlorsulfuron and Metsulfuron Methyl in Three Swedish Soils Measured in Field Lysimeters

  1. Lars Bergström *
  1. Swedish Univ. of Agric. Sciences, Div. of Water Management, P.O. Box 7072, S-750 07 Uppsala, Sweden.

Abstract

Abstract

Leaching of the herbicides chlorsulfuron (2-chloro-N-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)aminocarbonyl]benzenesulfonamide) and metsulfuron methyl (methyl 2-[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)aminocarbonyl]-aminosulfonyl]benzoate) was studied using field lysimeters containing either undisturbed soil monoliths or packed soil. Three soil types were represented, two sandy soils and one clay soil. Each herbicide was applied at two rates, 4 and 8 g a.i. ha−1, representing normal and double doses of the compounds for spring cereals. All lysimeters received supplementary watering in addition to natural rainfall. With the exception of a single sample that had a chlorsulfuron concentration (14 ng L−1) just above the detection limit, neither compound was detectable in leachate from lysimeters receiving the normal dose of the herbicides. For both herbicides at double dose, levels above the minimum detectable were found in selected lysimeters, reaching 43 and 21 ng L−1 for chlorsulfuron and metsulfuron methyl, respectively. Converted to fluxes over the 7-mo period, considerably less than 1% of the applied chlorsulfuron and metsulfuron methyl appeared in leachate.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .