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Delayed Incorporation of Trifluralin and Nitralin

Published online by Cambridge University Press:  12 June 2017

D. T. Smith  and
A. F. Wiese
D. T. Smith
Affiliation:
Texas A&M Univ. Agr. Res. & Ext. Center at Lubbock, Lubbock, TX. 79401
A. F. Wiese
Affiliation:
U. S. Dep. Agr. Southwestern Great Plains Res. Center, Bushland, TX. 79012
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Abstract

Trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) required more thorough soil incorporation with a disk, probably to prevent loss by volatility, than did 4-(methylsulfonyl)-2,6-dinitro-N,N-dipropylaniline (nitralin). Mechanical incorporation of nitralin could be delayed for 96 hr after application, whereas trifluralin needed to be incorporated within 24 hr to control weeds. Gas chromatographic analyses of soil showed that trifluralin decreased rapidly during the first 24 hr that incorporation was delayed. Application of trifluralin with undiluted crop oil on dry soil did not prolong the persistence prior to incorporation compared to applications with water.

Type
Research Article
Information
Weed Science , Volume 21 , Issue 3 , May 1973 , pp. 163 - 165
Copyright
Copyright © 1973 Weed Science Society of America 

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References

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