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- This study was performed to determine the effect of nutritional concentrations and fertilization intervals ongrowth of native pteridophyte (Pteris multifida, Cyrtomium falcatum, Cheilanthes argentea). Nutrient concentrationswere treated with non-treat, 500X, 1,000X and 2,000X solution, and fertilization periods were treated in everyday, 5, 10and 20day respectively, under the 30% shading net.Pteris multifidaappeared to be very good for growth by fertilizing at intervals of 10 day with nutrient concentration of2,000X drainage solution. The growth of Cyrtomium falcatumwas the best in the treatment of 1,000∼2,000Xconcentration for 10 days while that of Cheilanthes argenteawas the highest in the treatment of 1,000X concentrationfor 5days.Key words - Pteris multifida, Cyrtomium falcatum, Cheilanthes argentea.Pot