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- Title
Adsorption of Glyphosate on Variable-Charge, Volcanic Ash--Derived Soils.
- Authors
Cáceres-Jensen, L.; Gan, J.; Báez, M.; Fuentes, R.; Escudey, M.
- Abstract
The article discusses research examining the adsorption of glyphosate (N-phosphonometylglycine), which is a nonselective, broad spectrum herbicide, in variable-charged soil derived from volcanic ash. The team evaluated the adsorption kinetics, equilibrium isotherms, and the effect of hydrogen-ion concentrations in glyphosate adsorption of three volcanic ash-derived soils from Chilean towns including Andisols, from Nueva Braunau and Diguillin, and Ultisols, from Nueva Braunau. The team also examined the influence of glyphosate on the retention of phosphorous in the soil. A nonlinear relationship was used to describe glyphosate adsorption and adsorption isotherms. An overview of the effect of glyphosate on the maximum adsorption capacity of phosphate in each soil type is presented.
- Subjects
CHILE; SOIL absorption &; adsorption; VARIABLE charge soils; PHOSPHORUS in soils; GLYPHOSATE -- Environmental aspects; HERBICIDES &; the environment; CHEMICAL kinetics; ISOTHERMAL surfaces (Thermodynamics); ULTISOLS; ANDOSOLS
- Publication
Journal of Environmental Quality, 2009, Vol 38, Issue 4, p1449
- ISSN
0047-2425
- Publication type
Article