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Wetland soils may act as sinks for phosphorus from agricultural soils but P sorption is sensitive to soil redox conditions. When soils become flooded and anoxic, Fe III is reduced and P sorption decreases. To get improved knowledge about the relationship between redox state and P solubility under field conditions, a grid of 4 × 5 sampling points laid out in an Fe-rich meadow soil...
Adsorption by synthetic 2-line ferrihydrite and hematite of glyphosate and phosphate, separately and together, was compared with adsorption results for goethite, gibbsite and two kaolinites in order to determine adsorption differences and similarities, in particular competition and phosphate preference, of these variable-charge minerals. Hematite rapidly adsorbed both compounds, while adsorption by...
Adsorption and mineralisation of the herbicide glyphosate in five contrasting Danish surface soils were investigated using 14 C labelled glyphosate. A comparison was made to several chemical and microbiological soil characteristics to identify their role in regulating the fate of glyphosate in these soils. Glyphosate was rapidly adsorbed to iron and aluminium oxides, but were later released...
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