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Anales de la Asociación Química Argentina
versão impressa ISSN 0365-0375
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PESSAGNO, R.C.; DOS SANTOS AFONSO, M. e TORRES SANCHEZ, R.M.. N-(Phosphonomethyl) Glycine Interactions With Soils. An. Asoc. Quím. Argent. [online]. 2005, vol.93, n.4-6, pp.97-108. ISSN 0365-0375.
Glyphosate is a non selective, broad spectrum, postemergent herbicide widely used in weed control. The adsorption isotherms and surface coverage of glyphosate (NPhosphonomethylglycine, PMG) in aqueous suspensions of Argentine soils as a function of PMG concentration and pH were measured. Zeta potential curves for the PMG/soils system were also determined. The formation of inner sphere surface complexes of PMG on the soil surface, were analyzed as a function of pH and surface coverage.