Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-19T01:34:28.449Z Has data issue: false hasContentIssue false
  • English
  • Français

Atrazine Adsorption on Soil as Influenced by Temperature, Moisture Content and Electrolyte Concentration

Published online by Cambridge University Press:  12 June 2017

T. H. Dao  and
T. L. Lavy
T. H. Dao
Affiliation:
Formerly Grad. Res. Asst. Univ. of Nebraska, presently Res. Assoc., Western Washington Res. and Ext. Center, Washington State Univ. Puyallup, WA 98371
T. L. Lavy
Affiliation:
Formerly Prof. Agron., Univ. of Nebraska, presently Prof. Agron., Univ. of Arkansas, Fayetteville, AR, 72701
Get access Rights & Permissions [Opens in a new window]

Abstract

The adsorption of atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] was measured on soil at water:soil ratio of 5:1 and 0.4:1. The adsorption isotherms for atrazine were described by the Freundlich equation. A decrease in water:soil ratio and in soil moisture content led to an increased adsorption of the herbicide. Increasing the concentration of electrolytes in the soil solution by adding solutions up to 0.1M CaCl2 increased atrazine adsorption. Greater amounts of atrazine were adsorbed at 30 than at 5 C on four soils at 0.1 bar moisture content. This indicates an endothermic reaction which was observed both before and after correction for differential atrazine solubility due to temperature. Thermodynamic quantities associated with the adsorption reaction were calculated to characterize the adsorption of atrazine on soil.

Keywords

Freundlich isothermreduced concentration
Type
Research Article
Information
Weed Science , Volume 26 , Issue 3 , May 1978 , pp. 303 - 308
Copyright
Copyright © 1978 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Bailey, G. W. and White, J. L. 1970. Factors influencing the adsorption, desorption, and movement of pesticides in soil. Residue Rev. 32:29–92.Google Scholar
2. Best, J. A. and Weber, J. B. 1974. Disappearance of s-triazines as affected by soil pH using a balance-sheet approach. Weed Sci. 22:364–373.Google Scholar
3. Biggar, J. W. and Cheung, M. W. 1973. Adsorption of picloram on Panoche, Ephrata and Palouse soils: a thermodynamic approach to adsorption mechanism. Soil Sci. Soc. Am. Proc. 37:863–868.CrossRefGoogle Scholar
4. Colbert, F. O., Volk, V. V., and Appleby, A. P. 1975. Sorption of atrazine, terbutryne and GS-14254 on natural and lime-amended soils. Weed Sci. 23:390–394.Google Scholar
5. Dao, T. H. and Lavy, T. L. 1977. Extraction of soil solution using a simple centrifugation method for pesticide absorption-desorption studies. Soil Sci. Soc. Am. Proc. (Accepted for publication).Google Scholar
6. Green, R. E. 1974. Pesticide-clay-water interactions. Pages 3–37 in Guenzi, W. D., ed. Pesticides in soil and water. Soil Sci. Am. Inc., Madison, Wisconsin.Google Scholar
7. Green, R. E. and Obien, S. R. 1969. Herbicide equilibrium in soils in relation to soil water content. Weed Sci. 17:514–519.Google Scholar
8. Greenland, D. J. 1965. Interaction between clays and organic compounds in soils. I: Mechanisms of interaction between clays and defined organic compounds. Soils Fert. 28:415–425.Google Scholar
9. Harris, C. I. and Warren, G. F. 1964. Adsorption and desorption of herbicides by soil. Weeds 12:120–126.Google Scholar
10. Hurle, K. B. and Freed, V. H. 1972. Effect of electrolytes on the solubility of some 1,3,5-triazines and substituted ureas and their adsorption on soil. Weed Res. 12:1–10.Google Scholar
11. Lavy, T. L. 1975. Effect of soil pH and moisture on the direct radioassay of herbicides in soil. Weed Sci. 23:49–52.CrossRefGoogle Scholar
12. McGlamery, M. D. and Slife, F. W. 1966. The adsorption and desorption of atrazine as affected by pH, temperature, and concentration. Weeds 14:237–239.CrossRefGoogle Scholar
13. Miller, R. W. and Faust, S. D. 1972. Sorption from aqueous solutions by organic clays: I. 2,4-D by Bentone 24. Pages 121–134 in Fate of organic pesticides in the aquatic environment. Advances in Chemistry No. 111.Google Scholar
14. Mills, A. C. and Biggar, J. W. 1969. Solubility-temperature effect on the adsorption of gamma- and beta-BHC from aqueous and hexane solutions by soil materials. Soil Sci. Soc. Am. Proc. 33:210–216.CrossRefGoogle Scholar
15. Scott, H. D. and Lutz, J. F. 1971. Release of herbicides from clay minerals as a function of water content. I. Kaolinite. Soil Sci. Soc. Am. Proc. 35:374–379.CrossRefGoogle Scholar
16. Swanson, R. A. and Dutt, G. R. 1973. Chemical and physical processes that affect atrazine distribution in soil systems. Soil Sci. Soc. Am. Proc. 37:872–876.CrossRefGoogle Scholar
17. Talbert, R. E. and Fletchall, O. H. 1965. The adsorption of some s-triazines in soils. Weeds 13:46–52.Google Scholar
18. Upchurch, R. P. 1957. The influence of soil moisture content on the response of cotton to herbicide. Weeds 5:112–120.Google Scholar
19. Yamane, V. K. and Green, R. E. 1972. Adsorption of ametryne and atrazine on an Oxisol, montmorillonite, and charcoal in relation to pH and solubility effects. Soil Sci. Soc. Am. Proc. 36:58–64.Google Scholar