Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-26T02:32:19.371Z Has data issue: false hasContentIssue false

Competitive adsorption and desorption of glyphosate and phosphate on clay silicates and oxides

Published online by Cambridge University Press:  09 July 2018

A. L. Gimsing*
Affiliation:
Department of Chemistry, Royal Veterinary and Agricultural University, Thorvaldsensvej 40, 1871 Frederiksberg C., Denmark
O. K. Borggaard
Affiliation:
Department of Chemistry, Royal Veterinary and Agricultural University, Thorvaldsensvej 40, 1871 Frederiksberg C., Denmark
*
*E-mail: angi@kvl.dk

Abstract

Competitive adsorption of glyphosate and phosphate on goethite and gibbsite and on illite, montmorillonite and two kaolinites differing in surface area was evaluated. The results show that glyphosate and phosphate are competing for the adsorption sites, but the degree of competition depends on the adsorbent. On goethite the competition is very much in favour of phosphate, on gibbsite the competition is closer, but still phosphate is favoured, while on illite, montmorillonite and kaolinite the competition is almost equal. The amounts of glyphosate and phosphate, which can be adsorbed also depends on the adsorbent: the oxides adsorb more than the clay silicates. The amount adsorbed on kaolinite was dependent on the specific surface area. Changes in the surface area did not affect the competition between glyphosate and phosphate for adsorption sites. The results indicate that differences among soils of different mineralogical composition regarding the adsorption of glyphosate and phosphate can be expected.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2002

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

Borggaard, O.K. (2002) Soil Chemistry in a Pedological Context, 6th edition. DSR Forlag, Royal Veterinary and Agricultural University, Copenhagen.Google Scholar
Borggaard, O.K., Jørgensen, S.S., Møberg, J.P. & Raben-Lange, B. (1990) Influence of organic matter on phosphate adsorption by aluminium and iron oxides in sandy soils. Journal of Soil Science, 41, 443449.Google Scholar
Brunauer, S., Emmet, P.H. & Teller, E. (1938) Adsorption of gases in multimolecular layers. Journal of the American Chemical Society, 62, 17231732.Google Scholar
Del Campillo, M.C., van der Zee, S.E.A.T.M. & Torrent, J. (1999) Modelling long-term phosphorus leaching and changes in phosphorus fertility in excessively fertilized acid sandy soils. European Journal of Soil Science, 50, 391399.Google Scholar
Dion, H.M., Harsh, J.B. & Hill, H.H. (2001) Competitive sorption between glyphosate and inorganic phosphate on clay minerals and low organic matter soils. Journal of Radioanalytical and Nuclear Chemistry, 249, 385390.Google Scholar
Fontes, M.P.F. & Weed, S.B. (1996) Phosphate adsorption by clays from Brazilian Oxisols: relationships with specifi c surfac e area and mineralogy. Geoderma, 72, 3751.CrossRefGoogle Scholar
Franz, J.E., Mao, M.K. & Sikorski, J.A. (1997) Glyphosate, a Unique Global Herbicide. American Chemical Society, Washington, D.C.Google Scholar
Gimsing, A.L. & Borggaard, O.K. (2001) Effect of KCl and CaCl2 as background electrolytes on the competitive adsorption of glyphosate and phosphate on goethite. Clays and Clay Minerals, 49, 270275.CrossRefGoogle Scholar
Glass, R.L. (1987) Adsorption of glyphosate by soils and clay minerals. Journal of Agricultural and Food Chemistry, 35, 497500.Google Scholar
Hance, R.J. (1976) Sorption of glyphosate by soils. Pesticide Science, 7, 363366.Google Scholar
He, Z.L., Yuan, K.N. & Zhu, Z.X. (1992) Effects of organic anions on phosphate adsorption and desorption from variable-charge clay minerals and soil. Pedosphere, 2, 111.Google Scholar
Hingston, F.J., Atkinson, R.J., Posner, A.M. & Quirk, J.P. (1968) Specific adsorption of anions on goethite. Transactions of the 9th International Congress in Soil Science, Vol. 1, Australia.Google Scholar
Janse, T.A.H.M., van der Wiel, P.F.A. & Kateman, G. (1983) Experimental optimization procedures in the determination of phosphate by flow-injection analysis. Analytica Chimica Acta, 155, 89102.CrossRefGoogle Scholar
Lookman, R., Grobet, P., Merckx, R. & van Riemsdijk, W.H. (1997) Application of 31P and 27Al MAS NMR for phosphate speciation studies in soil and aluminium hydroxi des: promises and constra ints. Geoderma, 80, 369388.Google Scholar
McBride, M. & Kung, K.-H. (1989) Complexation of glyphosate and related ligands with iron(III). Journal of the Soil Science Society of America, 53, 1668–1673.Google Scholar
McConnel, J.S. & Hossner, L.R. (1985) pH dependent adsorption isotherms of glyphosate. Journal of Agricultural and Food Chemistry, 33, 1075–1078.Google Scholar
McConnel, J.S. & Hossner, L.R. (1989) X-ray diffraction and infrared spectroscopic studies of adsorbed glyphosate. Journal of Agricultural and Food Chemistry, 37, 555560.Google Scholar
Morillo, E., Undabeytia, T. & Maqueda, C. (1997) Adsorption of glyphosate on the clay mineral montmorillonite: Effect of Cu(II) in solution and adsorbed on the mineral. Environmental Science and Technology, 31, 3588–3592.CrossRefGoogle Scholar
Nicholls, P.H. & Evans, A.A. (1991) Sorption of ionisable organic compounds by field soils. Part 2: cations, bases and zwitterions. Pesticide Science, 33, 331345.CrossRefGoogle Scholar
Piccolo, A., Celano, G. & Pietramellara, G. (1992) Adsorption of the herbicide glyphosate on a metalhumic acid complex. The Science of the Total Environment, 123/124, 7782.CrossRefGoogle Scholar
Piccolo, A., Celano, G., Arienzo, M. & Mirabella, A. (1994) Adsorption and desorption of glyphosate in some European soils. Journal of Environmental Science and Health, B29, 11051115.Google Scholar
Ruzicka, J. & Hansen, E.H. (1983) Flow Injection Analysis. Wiley, New York.Google Scholar
Schwertmann, U. & Cornell, R.M. (1991) Iron Oxides in the Laboratory. Preparation and Characterization. VCH Verlagsgesellschaft GmbH, Weinheim, Germany.Google Scholar
Slater, C. & Cohen, L. (1962) A centrifugal particle size analyzer. Journal of Scientific Instrumentation, 39, 614617.Google Scholar
Sprankle, P., Meggitt, W.F. & Penner, D. (1975a) Rapid inactivation of glyphosate in the soil. Weed Science, 23, 224228.CrossRefGoogle Scholar
Sprankle, P., Meggitt, W.F. & Penner, D. (1975b) Adsorption, mobility, and microbial degradation of glyphosate in the soil. Weed Science, 23, 229234.Google Scholar
Strauss, R., Brümmer, G.W. & Barrow, N.J. (1997) Effects of crystallinity on goethite: II. Rates of sorption and desorption of phosphate. European Journal of Soil Science, 48, 1001–1014.CrossRefGoogle Scholar
van der Zee, S.E.A.T.M. & van Riemsdijk, W.H. (1986) Sorption kinetics and transport of phosphate in sandy soil. Geoderma, 38, 293309.Google Scholar
Willet, I.R., Chartres, C.J. & Nguyen, T.T. (1988) Migration of phosphate into aggregated particles of ferrihydrite. Journal of Soil Science, 39, 275282.Google Scholar