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Transformation of Isopropalin in Soil and Plants

Published online by Cambridge University Press:  12 June 2017

Tomasz Golab
Affiliation:
Lilly Research Laboratories, Division of Eli Lilly and Company, Greenfield, IN 46140
W. A. Althaus
Affiliation:
Lilly Research Laboratories, Division of Eli Lilly and Company, Greenfield, IN 46140

Abstract

Field soil studies with 14C-isopropalin (2,6-dinitro-N,N-dipropylcumidine) have demonstrated its biodegradability. None of the recognizable transformation products in soil accumulated beyond 4% of the amount of applied herbicide. After 15 months, approximately 25% of the applied isopropalin remained in soil, and less than 10% was observed after 28 months. Only negligible amounts of radioactivity were detected in crops grown in soil treated with the herbicide. Isopropalin and its recognizable transformation products were not detected in any of the plant tissues examined. Fractionation techniques indicated that the radioactivity was randomly distributed throughout the plant tissue.

Type
Research Article
Copyright
Copyright © 1975 by the Weed Science Society of America 

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References

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