Hostname: page-component-848d4c4894-pftt2 Total loading time: 0 Render date: 2024-05-06T04:04:42.892Z Has data issue: false hasContentIssue false
  • English
  • Français

Fluometuron Adsorption-Desorption Equilibria in Soil

Published online by Cambridge University Press:  12 June 2017

K. E. Savage  and
R. D. Wauchope
K. E. Savage
Affiliation:
Southern Weed Sci. Lab., Agr. Res. Serv., U.S. Dep. Agr., Stoneville, MS 38776
R. D. Wauchope
Affiliation:
Southern Weed Sci. Lab., Agr. Res. Serv., U.S. Dep. Agr., Stoneville, MS 38776
Get access Rights & Permissions [Opens in a new window]

Abstract

The adsorption-desorption equilibria of fluometuron [1,1-dimethyl-3-(α,α,α-trifluoro-m-tolyl)urea] were studied; a slurry technique with soil at 0-bar moisture tension was used. The equilibria established with Bosket very fine sandy loam (VFSL) were evaluated by three equations. The equation best describing the adsorption isotherm was x/m = K1Ce + K2Ce2. Successive equilibrations resulted in a shift in the equilibria toward the adsorbed state, most likeiy due to a physical change in the adsorption capacity of the soil with repeated agitation. Desorption studies with seven additional soils indicated the importance of soil organic matter content in the adsorption-desorption equilibria of fluometuron. The relationship between soil organic matter contents and the adsorption-desorption equilibrium constants was characterized by a highly significant linear correlation (r = 0.93) and the resulting regression equation: K1 = 0.46 + 0.45(O.M.%). Clay content of these soils was not significantly correlated with fluometuron equilibrium constants.

Type
Research Article
Information
Weed Science , Volume 22 , Issue 2 , March 1974 , pp. 106 - 110
Copyright
Copyright © 1974 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. 1964. Review of adsorption and desorption of organic pesticides by soil colloids, with implications concerning pesticide bioactivity. J. Agr. Food Chem. 12:324–332.Google Scholar
2. Bailey, G.W., White, J.L., and Rothberg, T. 1968. Adsorption of organic herbicides by montmorillonite: Role of pH and chemical character of adsorbate. Proc. Soil Sci. Soc. Amer. 32:222–234.Google Scholar
3. Bozarth, G.A. and Funderburk, H.H. Jr. 1971. Degradation of fluometuron in sandy loam soil. Weed Sci. 19:691–695.Google Scholar
4. Dalton, R.L., Evans, A.W., and Rhodes, R.C. 1966. Disappearance of diuron form cotton field soils. Weeds 14:31–33.CrossRefGoogle Scholar
5. Darding, R.L. and Freeman, J.F. 1968. Residual phytotoxicity of fluometuron in soils. Weed Sci. 16:226–229.Google Scholar
6. Frissel, M.J. and Bolt, G.H. 1962. Interaction between certain ionizable organic compounds (herbicides) and clay minerals. Soil Sci. 94:284–291.CrossRefGoogle Scholar
7. Geissbühler, H., Haselbach, C., and Aebi, H. 1963. The fate of N'-(4-chlorophenoxy)-phenyl-N,N-dimethylurea (C-1983) in soils and plants. I. Adsorption and leaching in different soils. Weed Res. 3:140–153.CrossRefGoogle Scholar
8. Green, R.E. and Obien, S.R. 1969. Herbicide equilibrium in soils in relation to soil water content. Weed Sci. 17:514–519.CrossRefGoogle Scholar
9. Grover, R. and Hance, R.J. 1970. Effect of ratio of soil to water on adsorption of linuron and atrazine. Soil Sci. 109:136–138.CrossRefGoogle Scholar
10. Hance, R.J. 1965. The adsorption of urea and some of its derivatives by a variety of soils. Weed Res. 5:98–107.Google Scholar
11. Hance, R.J., Hocombe, S.D., and Holroyd, J. 1968. The phytotoxicity of some herbicides in field and pot experiments in relation to soil properties. Weed Res. 8:136–144.Google Scholar
12. Harris, C.I. and Warren, G.F. 1964. Adsorption and desorption of herbicides by soils. Weeds. 12:120–126.Google Scholar
13. Hilton, H.W. and Yuen, Q.H. 1963. Adsorption of several pre-emergence herbicides by Hawaiian sugar cane soils. J. Agr. Food Chem. 11:230–234.Google Scholar
14. Lambert, S.M. 1967. Functional relationship between sorption in soil and chemical structure. J. Agr. Food Chem. 15:572–576.CrossRefGoogle Scholar
15. Lambert, S.M., Porter, P.E., and Schieferstein, R.H. 1965. Movement and sorption of chemicals applied to soil. Weeds 13:185–190.CrossRefGoogle Scholar
16. Rogers, R.L. and Funderburk, H.H. Jr. 1968. Physiological aspects of fluometuron in cotton and cucumber. J. Agr. Food Chem. 16:434–440.Google Scholar
17. Scott, H.D. and Lutz, J.F. 1971. Release of herbicides from clay minerals as a function of water content: I. kaolinite. Proc. Soil Sci. Soc. Amer. 35:374–379.Google Scholar
18. Sheets, T.J. 1958. The comparative toxicities of four phenylurea herbicides in several soil types. Weeds 6:413–424.CrossRefGoogle Scholar
19. Upchurch, R.P. 1958. The influence of soil factors on the phytotoxicity and plant selectivity of diuron. Weeds 6:161–171.Google Scholar
20. Upchurch, R.P. and Mason, D.D. 1962. The influence of soil organic matter on the phytotoxicity of herbicides. Weeds 10:9–14.Google Scholar
21. Voss, G. and Geissbühler, H. 1966. The uptake, translocation, and metabolism of fluometuron and metobromuron in plants. Proc. British Weed Control Conf. 8:266–268.Google Scholar
22. Yuen, Q.H. and Hilton, H.W. 1962. The adsorption of monuron and diuron by Hawaiian sugar cane soils. J. Agr. Food Chem. 10:386–392.Google Scholar