An experiment was carried out from June to August 1971 at Institute of Korean Grassland Development, Konkuk University to investigate how to effect N, P₂O_5, K₂O and CaO application on the growth, yields and plant components of Korean lespedeza(Lespedeza stipulacea M_(AXIM)) and on the soil components. The results were summarized as follows: 1. Lime and phosphate were definitly effective on the growth and yields. Phosphate was more effective than lime. 2. Nitrogen was not effective to the growth and yields. Abundunt application of nitrogen was thought to deter the growth and to decrease the yields. 3. Effects of potash were not appreciated when it was used alone, nevertheless the effects were apparent when it was used together with phosphate. 4. NPK Ca-plot showed the best growth and the largest yield among all plots(P$lt;0.05) Significant differences were not found among the plots of P, Ca, and NPK(P$gt;0.05). 5. Compound fertilization of P-K-Ca without N was thought to be more economical and effective. 6. Potash seems to act effectively in increasing root DM weight. 7. Percentages of the plant components were not changed significantly by fertilization. 8. Exchangeable Ca and K of the soil were increased by application of lime.