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Fig. 5. (a) Ammonium sorption and (b) desorption in Kennebec (closed symbol) and Haynie (open symbol) soils exposed to the modified swine waste solutions containing varying dissolved organic C concentrations (circle symbols) and (NH4)2SO4 solutions (square symbols) for 24 h. The initial NH4+ concentration of all the solutions was 250 mg NH4+–N L–1. The pH and the concentrations of all the major cations and anions in the solutions matched that of the liquid swine waste shown in Table 2.
