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Adsorption of Five Phenylurea Herbicides by Selected Soils of Czechoslovakia

Published online by Cambridge University Press:  12 June 2017

Josef Kozak  and
Jerome B. Weber
Josef Kozak
Affiliation:
Univ. of Agric., Prague 6, Suchdol, Czechoslovakia
Jerome B. Weber
Affiliation:
Dep. Crop Sci., North Carolina State Univ., Raleigh, NC 27650
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Abstract

Adsorption of five phenylurea herbicides, metobromuron [3-(p-bromophenyl)-1-methoxy-1-methylurea], monolinuron [3-(p-chlorophenyl)-1-methoxyl-1-methylurea], linuron [3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea], chlorbromuron [3-(4-bromo-3-chlorophenyl)-1-methoxy-1-methylurea], and CGA-15646 [3-(3-chloro-4-methylphenyl)-1,1-dimethylurea] by eight selected soils of Czechoslovakia were studied. Constants from Freundlich and Langmuir equations were calculated and correlated with the major soil properties. Freundlich K values ranged from 1.84 to 128, and the Freundlich equation was better fitted to the adsorption isotherms than was the Langmuir equation. Soil organic-matter content was the most important factor influencing the range of adsorption.

Keywords

Adsorption isothermsadsorption constantsmetobromuronmonolinuronlinuronchlorbromuronCGA-15646
Type
Research Article
Information
Weed Science , Volume 31 , Issue 3 , May 1983 , pp. 368 - 372
Copyright
Copyright © 1983 Weed Science Society of America 

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References

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