This field experiment was undertaken to assess the effects of two rates of Ca(OH)₂ (0, 250 ㎏/l0a) and five rates of N-P₂O_5-K₂O (0-0-0, 0-10-10, 6-15-15, 12-20-20, 24-25-20 ㎏/l0a) on the grassland establishment, forage yield and quality, botanical composition, and persistence of different forage species in a mixed grass/ clover sward established by oversowing method on new reclaimed steep mountain. This third part was concerned with the concentrations and uptake of mineral nutrients, and percentage recovery of NPK. The results obtained were summarized as follows; 1. Liming increased concentrations of N, Ca, Mg and Na in mixed forages, but effect of liming on concentrations of K and P was inconsistent. By increasing the NPK rate, concentrations of N, P, K, Rnd Ns in mixed forages were increased, whereas Ca and Mg concentrations tended to be reduced. 2. Overall values of Mg concentrations in mixed forages were below 0.15%. That value is considerably below 0.15%. That value is considerably below the critical level for forage growth and likelihood of grass tetany ($lt;0.2%). Amounts of individual and total mineral uptake, and total concentration of minerals were increased by both liming and increasing the NPK rate. 3. Liming increased markedly the percent recoveries of N,P and K, Percent recovery of N was reduced by increasing the N rate, whereas those of P and K were inconsistently affected by their application rates. The percent recoveries of N, P and K by mixed forages were highest in the order; K$gt;N$gt;P. 4. Forage quality was greatly influenced by both liming and applications of NPK. Concentrations of N, P, K, Ca, Mg and Na were lower in weeds than in seeded forages.