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Infiltration into soil of contaminants present in cattle slurry was studied. Column experiments were performed in order to characterize the release of contaminants at the slurry-soil interface after surface application of slurry, with subsequent rainfall or irrigation. A gradual decrease of contaminant concentrations was observed at this interface. The shape of the release curves suggests that the...
Column trials were used to characterize the downward movement of sodium, potassium, ammonium, orthophosphate and chloride (all typically present in cattle slurry) through the soil profile. The soil used was a pasture soil developed over amphibolite; trials were carried out with the < 2 mm fraction, each column being packed with soil from a single horizon. A feed solution containing known concentrations...
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