Adsorption of glyphosate and aminomethylphosphonic acid in soils
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Institute of Soil Research, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences, Peter Jordan-Strasse 82, 1190 Vienna, Austria
Int. Agrophys. 2013, 27(2): 203-209
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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