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The Adsorption of Some s-Triazines in Soils

Published online by Cambridge University Press:  12 June 2017

Ronald E. Talbert  and
O. Hale Fletchall
Ronald E. Talbert
Affiliation:
University of Missouri, Columbia, Missouri
O. Hale Fletchall
Affiliation:
University of Missouri, Columbia, Missouri
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Abstract and summary

The extent of adsorption of five C14-labeled s-triazines, 2-chloro-4,6-bis(ethylamino)-s-triazine (simazine), 2-chloro-4-ethylamino-6-isopropylamino-s-triazine (atrazine), 2-chloro-4,6-bis(isopropylamino)-s-triazine (propazine), 2-methoxy-4,6-bis(isopropylamino)-s-triazine (prometone), and 2,4-bis(isopropylamino)-6-methylmercapto-s-triazine (prometryne) from aqueous solutions by soil constituents was expressed as a distribution coefficient (Kd), which is the ratio of the amount of herbicide adsorbed to the amount in the equilibrium solution. The Kd value for a given s-triazine and exchanger remained relatively constant over a range of concentrations. The adsorption reaction was essentially at equilibrium within 1 hour. Increasing the temperature and pH resulted in decreased adsorption of simazine and atrazine. The order of increasing adsorption of these compounds by soils was propazine, atrazine, simazine, prometone and prometryne. Increased amounts of organic matter and/or clay in a soil generally were associated with increased adsorption of these s-triazines. No adsorption of simazine or atrazine was detected with kaolinite. Putnam clay, illite, and montmorillonite were increasingly adsorptive in that order. The organic materials were generally much more adsorptive than the clays. The adsorption reaction was reversible by increasing temperatures, water elution, and elution with various organic solvents. Fifty percent ethanol plus heat was very effective in eluting the chloro-s-triazines from soil.

Type
Research Article
Information
Weeds , Volume 13 , Issue 1 , January 1965 , pp. 46 - 52
Copyright
Copyright © 1965 Weed Science Society of America 

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References

Literature Cited

1. Anonymous. 1955. Key for identifying soils of Missouri. Missouri Agr. Expt. Sta. Prog. Rept. 12.Google Scholar
2. Ashton, F. M. 1961. Movement of herbicides in soil with similated furrow irrigation. Weeds 9:612–619.CrossRefGoogle Scholar
3. Ashton, F. M. and Sheets, T. J. 1959. The relationship of soil adsorption of EPTC to oats injury in various soil types. Weeds 7:88–90.CrossRefGoogle Scholar
4. Baver, L. D. 1956. Soil physics. Third edition. John Wiley and Sons, Inc., New York. 489 p.Google Scholar
5. Burnside, O. D. and Behrens, R. 1961. Phytotoxicity of simazine. Weeds 9:145–157.CrossRefGoogle Scholar
6. Coggins, C. W. Jr. and Crafts, A. S. 1959. Substituted urea herbicides: their electrophoretic behavior and the influence of clay colloids in nutrient solution on their phytotoxicity. Weeds 7:349–358.CrossRefGoogle Scholar
7. Frissel, M. J. 1961. The adsorption of some organic compounds, especially herbicides on clay minerals. (Trans.) Voor Landbouw Publikaties En Landlouwdocumentatie, Wageningen, Holland.Google Scholar
8. Glasstone, S. and Lewis, D. 1960. Elements of physical chemistry. D. van Norstrand Co., Inc., Princeton, New Jersey. 758. p.Google Scholar
9. Graham, E. R. 1959. An explanation of theory and methods of soil testing. Missouri Agr. Expt. Sta. Bull. 734.Google Scholar
10. Jackson, M. L. 1958. Soil chemical analysis. Prentice-Hall, Inc., Englewood Cliffs, New Jersey. 498 p.Google Scholar
11. Leopold, A. C., van Schaik, P., and Neal, M. 1960. Molecular structure and herbicidal adsorption. Weeds 8:48–54.CrossRefGoogle Scholar
12. Samuelson, O. 1953. Ion exchangers in analytical chemistry. John Wiley and Sons, Inc., New York. 291 p.Google Scholar
13. Sheets, T. J. 1959. The comparative toxicities of monuron and simazine in soil. Weeds 7:189–194.CrossRefGoogle Scholar
14. Sheets, T. J., Crafts, A. S., and Drever, H. R. 1962. Influence of soil properties on the phytotoxicities of the s-triazine herbicides. J. Agr. Food Chem. 10:458–462.CrossRefGoogle Scholar
15. Sheets, T. J. and Danielson, L. L. 1960. Herbicides in soils, p. 170–181. In The nature and fate of chemicals applied to soils, plants and animals. USDA, ARS 20-9. 221 p. Google Scholar
16. Sheets, T. J. and Shaw, W. C. 1963. Herbicidal properties and persistence in soils of s-triazines. Weeds 11:15–21.CrossRefGoogle Scholar
17. Sherburne, H. R. and Freed, V. H. 1954. Adsorption of 3-(p-chlorophenyl)-1,1-dimethylurea as a function of soil constituents. J. Agr. Food Chem. 2:937–939.CrossRefGoogle Scholar
18. Upchurch, R. P. and Mason, D. D. 1962. The influence of soil organic matter on the phytotoxicity of herbicides. Weeds 10:9–14.CrossRefGoogle Scholar