Background : Usually, planting and harvest time is around the middle of April. A labor shortage deu to her planting time as harvest time and some farmers were late planting culture. After planting until take rooting It will take more than one month when late planting growth is bad. Seedling cultivation, just taking rooting is agricultural growth promotion. Methods and Results : So did design the optimum nursery days and number of plants. Nursery days were 30 days and 45 days and number of plants 1, 3, 5 plants. Plant length was longer in less number of plants while Root length was longer in more number of plants of Temporary planting seedling, Leaf number was a big increase but number of plants was not a big shift. In post-havest survey, plant length was longer in 3 number of stem and root length was longer in one number of stem. 45 days and 3 number of stem seedling was the most good in number, weight and length of tuberous root. Yield of 45 days and 3 number of stem seedling was higher 7% than 1 number of stem seedling and higher 5% than 5 number of stem seedling. 45 days and 3 number of stem seedling was 1,789 thousand per 10a in income was the most. Conclusion : Result of this study, for rasing healthy seeding nursery days 45 days and number of plants 3 plant

• Young Chun Park(Chungcheongnam-Do ARES Agricultural Ginseng and Medicinal Crop Institute) | 박영춘 Corresponding author
• Jung Il Ju(Chungcheongnam-Do ARES Agricultural Ginseng and Medicinal Crop Institute) | 주정일
• Tug Sang Yun(Chungcheongnam-Do ARES Agricultural Ginseng and Medicinal Crop Institute) | 윤덕상
• Bo Hee Lee(Chungcheongnam-Do ARES Agricultural Ginseng and Medicinal Crop Institute) | 이보희
• Hyun Ho Kim(Chungcheongnam-Do ARES Agricultural Ginseng and Medicinal Crop Institute) | 김현호
• Min Sick In(Chungcheongnam-Do ARES Agricultural Ginseng and Medicinal Crop Institute) | 인민식