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Fluridone Adsorption on Mineral Clays, Organic Matter, and Modified Norfolk Soil

Published online by Cambridge University Press:  12 June 2017

Patrick J. Shea  and
Jerome B. Weber
Patrick J. Shea
Affiliation:
Agron. Dep., Univ. of Nebraska, Lincoln, NE 68583, Crop Sci. Dep., North Carolina State Univ. Raleigh, NC 27607
Jerome B. Weber
Affiliation:
Agron. Dep., Univ. of Nebraska, Lincoln, NE 68583, Crop Sci. Dep., North Carolina State Univ. Raleigh, NC 27607
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Abstract

Adsorption and desorption characteristics of fluridone (1-methyl-3-phenyl-5-[3-txifluoromethyl)phenyl]-4-(1H)-pyridinone} on prepared clays and organic matter were studied in unbuffered and buffered aqueous solutions. In unbuffered aqueous solution the adsorption of fluridone decreased in the order: H-saturated organic matter (H-OM) > Ca-saturated montmorillonite (Ca-mont) > Ca-saturated organic matter (Ca-OM) > kaolinite. Based on the chemistry of fluridone, the nature of the adsorbent, and previously reported studies, the major adsorption mechanisms appear to be pH-dependent adsorption of protonated fluridone and direct protonation of the herbicide at acidic surfaces, supplemented by physical adsorption forces such as van der Waals attractions and charge transfer bonds. The adsorption of fluridone on Norfolk sand (Typic Paleudult; fine-loamy, siliceous, thermic), unmodified (CK), or amended with montmorillonite (HC) or organic matter (HM) at pH 4.0, 5.2, and 7.0 was also studied. Over all adsorption was greatest on HC soil, least on CK soil, and intermediate on the HM soil. In each system adsorption was inversely related to pH. These results were interpreted by comparison with adsorption observed on prepared clay minerals and organic matter.

Keywords

MontmorillonitekaolinitepH effectsbuffer effects
Type
Research Article
Information
Weed Science , Volume 31 , Issue 4 , July 1983 , pp. 528 - 532
Copyright
Copyright © 1983 Weed Science Society of America 

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References

Literature Cited

1. Banks, P. A. and Merkle, M. G. 1978. Effectiveness and persistence of fluridone. Proc. South. Weed Sci. Soc. 31:74.Google Scholar
2. Buendia-Maya, J., Gonzalez Pedrens, D., and Laita, F. J. 1978. El-171 fluridona, nuevo herbicida de amplio espectro. Proc. Med. Herb. Symp. 2:78–86.Google Scholar
3. Day, P. R. 1965. Particle fractionation and particle size analysis. Pages 545–566, in Black, C. A., ed. Methods of Soil Analysis, Part I. Monograph No. 9, Am. Soc. Agron., Inc., Madison, WI.Google Scholar
4. Fusi, P. and Corsi, R. 1968. The effect of some electrolytes on adsorption and release by organic colloids of symmetrical triazines. Agrochimica 12:109–119.Google Scholar
5. Gilmour, J. G. and Coleman, N. T. 1971. s-triazine adsorption studies: Ca-H-humic acid. Soil Sci. Soc. Am. Proc. 35:256–259.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. Soc. Am., Inc., Madison, WI.Google Scholar
7. Harter, R. D. and Aldrichs, J. L. 1969. Effects of acidity on reactions of organic acid amines with montmorillonite clay surfaces. Soil Sci. Soc. Am. Proc. 33:859–863.Google Scholar
8. Hayes, M.H.B., Stacey, M., and Thompson, J. M. 1968. Adsorption of s-triazine herbicides by soil organic matter preparation, Page 75, in Isotopes and Radiation in Soil Organic-Matter Studies. I.A.E.A., Vienna.Google Scholar
9. McCowan, M. C., Young, C. L., West, S. D., Parka, S. J., and Arnold, W. B. 1979. Fluridone, a new herbicide for aquatic plant management. J. Aquat. Plant Manage. 17:30–33.Google Scholar
10. Parka, S. J., Albritton, R., and Lin, C. 1978. Correlation of chemical and physical properties of the soil with herbicidal activity of fluridone. Proc. South. Weed Sci. Soc. 31:260–269.Google Scholar
11. Savage, K. E. 1978. Persistence of fluridone in soil. Proc. South. Weed Sci. Soc. 31:270.Google Scholar
12. Shea, P. J. and Weber, J. B. 1980. Effect of pH and soil constituents on the persistence and availability of fluridone. Proc. South. Weed Sci. Soc. 33:240–246.Google Scholar
13. Shea, P. J. and Weber, J. B. 1981. Fluridone behavior as influenced by soil clay, organic matter, and pH. Abstr. Weed Sci. Soc. Am., p. 131.Google Scholar
14. Waltrep, T. W. and Taylor, H. M. 1976. 1-methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]-4-(1H)-pyridinone, a new herbicide. J. Agric. Food Chem. 24:1250–1251.Google Scholar
15. Weber, J. B. 1970. Mechanisms of adsorption of s-triazines by clay colloids and factors affecting plant availability. Residue Rev. 32:93–130.Google Scholar
16. Weber, J. B. 1980. Adsorption of buthidazole, VEL 3510, tebuthiuron, and fluridone by organic matter, montmorillonite clay, exchange resins, and a sandy loam soil. Weed Sci. 28:478–483.Google Scholar
17. Weber, J. B. 1980. Ionization of buthidazole, VEL 3510, tebuthiuron, fluridone, metribuzin, and prometryn. Weed Sci. 28:467–474.Google Scholar
18. Weber, J. B. and Weed, S. B. 1968. Adsorption and desorption of diquat, paraquat, and prometone by montmorillonite and kaolinite clay minerals. Soil Sci. Soc. Am. Proc. 32:485–487.Google Scholar
19. Weed, S. B. and Weber, J. B. 1974. Pesticide-organic matter interactions. Pages 39–66, in Guenzi, W. D. ed. Pesticides in Soil and Watser. Soil Sci. Soc. Am., Inc., Madison, WI.Google Scholar