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Adsorption of Picloram by Soil Colloids and Various Other Adsorbents

Published online by Cambridge University Press:  12 June 2017

R. Grover
R. Grover*
Affiliation:
Weed Sci. Sect., Res. Sta., Canada Dep. of Agr., Regina, Saskatchewan, Canada
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Abstract

The adsorption of picloram (4-amino-3,5,6-trichloropicolinic acid) was studied for several Canadian prairie soils and for various other adsorbents. The kd values for the soils ranged from 0.09 to 0.75 and were correlated only with soil organic matter. The kd values for other adsorbents varied from 0 to 232, the order of adsorption being activated charcoal > anion exchange resin > peat moss > cellulose triacetate. There was no adsorption of picloram on montmorillonite and kaolinite clays, cation exchange resin, wheat straw (Triticum aestivum L.), or cellulose powder. The differences in the adsorption of picloram were explained on the basis of the relative affinities of the various adsorptive surfaces for the molecular or the ionized forms of the acid.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 4 , July 1971 , pp. 417 - 418
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

1. Bailey, G. W. and White, J. L. 1964. Review of adsorption and desorption of organic pesticides by soil colloids, with implications concerning pesticide bioactivity. J. Agr. Food Chem. 12:324–332.CrossRefGoogle Scholar
2. Hamaker, J. W., Goring, C. A. I., and Youngson, C. R. 1966. Sorption and leaching of 4-amino-3,5,6-trichloropicolinic acid in soils, p. 23–37. In Gould, R. F., Advan. Chem. Ser. 60, Amer. Chem. Soc., Washington, D.C. Google Scholar
3. Herr, D. E., Stroube, E. W., and Ray, D. A. 1966. The movement and persistence of picloram in soil. Weeds 14:248–250.CrossRefGoogle Scholar
4. Keys, C. H. and Friesen, H. A. 1968. Persistence of picloram activity in soil. Weed Sci. 16:341–343.CrossRefGoogle Scholar
5. Patterson, M. S. and Green, R. C. 1965. Measurement of low energy beta-emitters in aqueous solutions by liquid scintillation counting of emulsions. Anal. Chem. 37:854–856.CrossRefGoogle ScholarPubMed
6. Scifres, C. J., Burnside, O. C., and McCarty, M. K. 1969. Movement and persistence of picloram in pasture soils of Nebraska. Weed Sci. 17:486–488.CrossRefGoogle Scholar