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Soil Persistence of Atrazine and Cyanazine

Published online by Cambridge University Press:  12 June 2017

A.W. Libik  and
R.R. Romanowski
A.W. Libik
Affiliation:
Dep. of Hort. Purdue Univ., Lafayette, IN 47907
R.R. Romanowski
Affiliation:
Dep. of Hort. Purdue Univ., Lafayette, IN 47907
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Abstract

The persistence of atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] and cyanazine {2-[[4-chloro-6-(ethylamino)-s-triazin-2-yl] amino]-2-methylpropionitrile} both applied at 2.24 and 4.48 kg/ha was studied in the field on two soils. A greenhouse bioassay using cucumber (Cucumis sativus L. ‘Wisconsin SMR-18′) showed no reduction in growth when plants were grown in soil taken from cyanazine and atrazine treatments at the end of the season. Similarly, fall-sown rye (Secale cereale L.) was not injured. The yields of transplanted tomatoes (Lycopersicum esculentum L. ‘Campbell 28′) and transplanted watermelons (Citrullus vulgaris ‘Crimson Sweet’) were not significantly reduced when grown 1 yr after the initial application of either herbicide.

Type
Research Article
Information
Weed Science , Volume 24 , Issue 6 , November 1976 , pp. 627 - 629
Copyright
Copyright © 1977 by the Weed Science Society of America 

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References

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