INSTITUTO DE QUIMICA, FISICA DE LOS MATERIALES, MEDIOAMBIENTE Y ENERGIA
Unidad Ejecutora - UE
N-phosphonomethylglycine interactions with soils
ROMINA C. PESSAGNO; MARÍA DOS SANTOS AFONSO; ROSA M TORRES SANCHEZ
Journal of the Argentine Chemical Society
Asociación Química Argentina
Año: 2006 vol. 93 p. 97 - 97
Glyphosate is a non selective, broad spectrum, postemergent herbicide widely used inweed control. The adsorption isotherms and surface coverage of glyphosate (NPhosphonomethylglycine, PMG) in aqueous suspensions of Argentine soils as a function ofPMG concentration and pH were measured. Zeta potential curves for the PMG/soils systemwere also determined. The formation of inner sphere surface complexes of PMG on the soilsurface, were analyzed as a function of pH and surface coverage.