Laboratory studies on glyphosate transport in soils of the Maresme area near Barcelona, Spain: Transport model parameter estimation

Differential Transport of Atrazine and Glyphosate in Undisturbed Sandy Soil Column

“…Different sets of parameter values can satisfactorily fit the experiment data. Using the values of parameters for sandy soil (59% sand, 13% silt and 10% clay) reported by Candela et al (2007), the initial values R = 175, β = 0.17, ω = 0.60, µ1 = 0, µ2 = 0 were used. In order to reduce the uncertainty, commonly embedded in multi-parameter estimation approaches, the later three parameters were estimated by keeping R and β constant.…”

Influence of soil tillage and erosion on the dispersion of glyphosate and aminomethylphosphonic acid in agricultural soils

“…Glyphosate, among the non-selective herbicides, is one of the most applied organophosphonates worldwide with 60% of the global sales (Candela et al, 2007). The major sustainable agricultural systems in South America and USA are fundamentally based on a technological package that combines no-till and glyphosate in the cultivation of maize (Aparicio et al, 2013;Cerdeira and Duke, 2006;Christoffoleti et al, 2008.)…”

Adsorption of glyphosate and aminomethylphosphonic acid in soils

“…Organophosphonates are released into the environment in enormous quantities and, among the non-selective herbicides, glyphosate is applied at a volume corresponding with about 60% of the global sales (Candela et al, 2007). Glyphosate is a polar, highly water-soluble substance that easily forms complexes with metals and binds tightly to soil components (Ghanem et al, 2007;Gimsing et al, 2004;Schnurer et al, 2006).…”