Journal
ENVIRONMENTAL POLLUTION
Volume 157, Issue 10, Pages 2865-2870Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2009.04.004
Keywords
Glyphosate; Humic acid; Fulvic acid; Soil; Sorption
Categories
Ask authors/readers for more resources
Soil organic matter (SOM) is generally believed not to influence the sorption of glyphosate in soil. To get a closer look on the dynamics between glyphosate and SOM, we used three approaches: I. Sorption studies with seven purified soil humic fractions showed that these could sorb glyphosate and that the aromatic content, possibly phenolic groups, seems to aid the sorption. II. Sorption studies with six whole soils and with SOM removed showed that several soil parameters including SOM are responsible for the strong sorption of glyphosate in soils. III. After an 80 day fate experiment, similar to 40% of the added glyphosate was associated with the humic and fulvic acid fractions in the sandy soils, while this was the case for only similar to 10% of the added glyphosate in the clayey soils. Glyphosate sorbed to humic substances in the natural soils seemed to be easier desorbed than glyphosate sorbed to amorphous Fe/Al-oxides. (C) 2009 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available