the results indicate that addition of ca salts to kcl or k ( 2 ) so ( 4 ) solutions increased anion uptake and the effect of the addition of the ca salts on k uptake was in part the result of increased anion uptake and not entirely a direct effect of ca.in contrast , accumulation of na and k from solutions containing these ions as so ( 4 ) or cl salts was changed from preferential uptake of na to preferential uptake of k by addition of either cacl ( 2 ) or caso ( 4 ) .
C0003075
anion
C0022023
ions