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Influence of Various Soil Properties on the Adsorption and Desorption of ICIA-0051 in Five Soils

Published online by Cambridge University Press:  12 June 2017

John S. Wilson
Affiliation:
Dep. Plant Pathol., Physiol., Weed Sci., Va. Polytech. Inst. State Univ., Blacksburg, VA 24061
Chester L. Foy
Affiliation:
Dep. Plant Pathol., Physiol., Weed Sci., Va. Polytech. Inst. State Univ., Blacksburg, VA 24061

Abstract

The soil organic matter and/or humic matter fraction was highly correlated with the adsorption of ICIA-0051 herbicide onto five soils; clay content and other soil factors were less correlated. The Freundlich equation was used to describe the adsorption of ICIA-0051 by the various soils. Based on the K constants, the general order for adsorption for each soil was Hyde silty clay loam > Frederick silt loam > Davidson clay = Bojac sandy loam > Appling loamy sand. Across all soils, 25 to 50% of the amount adsorbed was removed by two desorptions. Appling, Bojac, and Davidson soils retained less herbicide after two desorptions than did Frederick and Hyde.

Type
Research
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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