My Account: Log In | Join | Renew
Search
Author
Title
Vol.
Issue
Year
1st Page

Abstract

 

This article in JEQ

  1. Vol. 6 No. 2, p. 127-132
     
    Received: May 3, 1976
    Published: Apr, 1977


 View
 Download
 Alerts
 Permissions
 Share

doi:10.2134/jeq1977.00472425000600020005x

Persistence of Propanil, DCA, and TCAB in Soil and Water Under Flooded Rice Culture1

  1. L. E. Deuel,
  2. K. W. Brown,
  3. F. C. Turner,
  4. D. G. Westfall and
  5. J. D. Price2

Abstract

Abstract

Field experiments were conducted to determine the residue levels of propanil (3′,4′-dichloropropionanilide), DCA (3,4-dichloroaniline), and TCAB (3,3′,4,4′-tetrachloroazobenzene) in the flood water and Beaumont clay soil under normal rice (Oryza sativa L.) cultivation. Propanil applied as a foliar spray at 3.4 and 6.8 kg/ha 24 hours before flooding was dissipated from the flood water within 24 hours following the flood. The amount of propanil dissipated corresponded to the DCA concentration in the flood water at 24 hours, indicative of biological degradation of propanil to DCA. TCAB was never detected in other than trace quantities. Neither propanil nor its metabolites were detected in soil samples collected at 2.5–5.0 cm and 17.5–20.0 cm below the surface 24 hours following the application of the flood water.

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

Copyright © .