Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-26T19:07:15.822Z Has data issue: false hasContentIssue false
  • English
  • Français

Adsorption of Buthidazole, VEL 3510, Tebuthiuron, and Fluridone by Organic Matter, Montmorillonite Clay, Exchange Resins, and a Sandy Loam Soil

Published online by Cambridge University Press:  12 June 2017

J. B. Weber
J. B. Weber*
Affiliation:
Crop Sci. Dep., N.C. State Univ., Raleigh, NC 27650
Get access Rights & Permissions [Opens in a new window]

Abstract

Adsorption isotherms were obtained for buthidazole {3-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-4-hydroxy-1-methyl-2-imidazolidinone}, VEL 3510 {1-β,β-dimethoxy-1-methyl-3-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]urea}, tebuthiuron {N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N′-dimethylurea}, and fluridone {1-methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]-4 (1H)-pyridinone} on soil organic matter (H- and Ca-saturated), Ca-montmorillonite, and Cape Fear sandy loam soil. Prometryn [2,4-bis (isopropylamino)-6-(methylthio)-s-triazine] was included as a reference. The order of adsorption on all adsorbents was fluridone ≥ prometryn > > tebuthiuron ≥ VEL 3510 > buthidazole. Fluridone adsorption on the various adsorbents was: H-organic matter > Ca-montmorillonite > Ca-organic matter > > Cape Fear sandy loam. Tebuthiuron, VEL 3510, and buthidazole adsorption on the various adsorbents was in the order: H-organic matter > Ca-organic matter = Ca-montmorillonite > Cape Fear sandy loam. Adsorption of all herbicides increased with decreasing pH, suggesting that the adsorption mechanism was molecular under neutral pH conditions and ionic under acidic conditions. All of the herbicides were adsorbed in high amounts as protonated species on IR-120-H cation exchange resin and in low amounts as molecular species on IR-400-Cl anion exchange resin. Buthidazole and VEL 3510 were adsorbed in high amounts as anionic species by the IR-400-Cl exchange resin at high pH levels.

Keywords

Herbicide inactivationherbicide retentionpH-dependent adsorptionherbicide sorptionionizing herbicides
Type
Research Article
Information
Weed Science , Volume 28 , Issue 5 , September 1980 , pp. 478 - 483
Copyright
Copyright © 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. Bohn, H. L., McNeal, B. L., and O'Conner, G. A. 1979. Soil Chemistry. John Wiley & Sons, Inc., New York, NY 329 pp.Google Scholar
2. Best, J. A., Weber, J. B., and Monaco, T. J. 1975. Influence of soil pH on s-triazine availability to plants. Weed Sci. 23:378–382.Google Scholar
3. Broadbent, F. E. 1965. Organic matter. Pages 1397–1400 in Part 2, Black, C. A., ed., Methods of Soil Analysis. Am. Soc. of Agron., Inc., Madison, WI.Google Scholar
4. Carringer, R. D., Weber, J. B., and Monaco, T. J. 1975. Adsorption-desorption of selected pesticides by organic matter and montmorillonite. J. Agric. Food Chem. 23:568–572.Google Scholar
5. Chang, S. S. and Strizke, J. F. 1977. Sorption, movement and dissipation of tebuthiuron in soils. Weed Sci. 25:184–188.Google Scholar
6. MacDiarmid, B. N. 1975. VEL 5026 – A new herbicide for nonselective weed control. Proc. New Zealand Weed Pest Conf. 28:154–159.Google Scholar
7. Parka, S. J., Albritton, R., and Lin, C. 1978. Correlation of chemical and physical properties of the soil with herbicidial activity of fluridone. Proc. South. Weed Sci. Soc. 31:260–269.Google Scholar
8. Peeper, T. F. and Weber, J. B. 1976. Activity and persistence of atrazine, procyazine, and VEL 5026 as influenced by soil organic matter and clay. Proc. South. Weed Sci. Soc. 29:387–398.Google Scholar
9. Weber, J. B. 1970. Mechanisms of adsorption of s-triazines by clay colloids and factors affecting plant availability. Pages 93–130 in Gunther, F. A., ed., The Triazine Herbicides, Vol. 31 of Residue Rev., Springer-Verlag, New York.Google Scholar
10. Weber, J. B. 1970. Adsorption of s-triazines by montmorillonite as a function of pH and molecular structure. Soil Sci. Soc. Am. Proc. 34:401–404.CrossRefGoogle Scholar
11. Weber, J. B. 1972. Interaction of organic pesticides with particulate matter in aquatic and soil systems. Pages 55–120 in Gould, R. F., ed., Fate of Organic Pesticides in the Aquatic Environment. Am. Chem. Soc., Washington, DC.Google Scholar
12. Weber, J. B. 1977. Soil properties, herbicide sorption, and model soil systems. Pages 59–72 in Truelove, Bryan, ed., Res. Methods in Weed Sci. (2nd Ed.). South Weed Sci. Soc., Auburn Printing Co., Auburn, AL.Google Scholar
13. Weber, J. B. 1977. Spectrophotometric analysis of herbicides. Pages 109–117 in Truelove, Bryan, ed., Res. Methods in Weed Science (2nd Ed.). South Weed Sci. Soc., Auburn Printing Co., Auburn, AL.Google Scholar
14. Weber, J. B. 1980. Ionization of buthidazole, VEL 3510, tebuthiuron, fluridone, metribuzin, and prometryn. Weed Sci. 28: In press.Google Scholar
15. Weber, J. B., Perry, P. W., and Ibaraki, K. 1968. Effect of pH on the phytotoxicity of prometryn applied to synthetic soil media. Weed Sci. 16:134–136.CrossRefGoogle Scholar
16. Weber, J. B., Weed, S. B., and Ward, T. M. 1969. Adsorption of s-triazines by soil organic matter. Weed Sci. 17:417–421.Google Scholar