Adsorption of glyphosate and aminomethylphosphonic acid in soils
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| Authors: | N. Rampazzo1, G. Rampazzo Todorovic1, A. Mentler1, W. Blum1 1Institute of Soil Research, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences, Peter Jordan-Strasse 82, 1190 Vienna, Austria |
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| Abstract : | The results showed that glyphosate is initially adsorbed mostly in the upper 2 cm. It is than transported and adsorbed after few days in deeper soil horizons with concomitant increasing content of its metabolite aminomethylphosphonic acid. Moreover, Fe-oxides seem to be a key parameter for glyphosate and aminomethylphosphonic adsorption in soils. This study confirmed previous studies: the analysis showed lower contents of dithionite-soluble and Fe-oxides for the Chernozem, with consequently lower adsorption of glyphosate and aminomethylphosphonic as compared with the Cambisol and the Stagnosol. |
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| Keywords : | adsorption, glyphosate, aminomethylphosphonic acid, soils | ||||||||||
| Language : | English | ||||||||||