Effect of Nitrogen Application Rate on Growth of Rumohra aristata and Cyclosorus dentatus of Korea Native Fern

질소시비량이 자생 가는쇠고사리와 탐라별고사리의 생육에 미치는 효과

For the two species of native fern that have high development potential for interior landscape, Rumohra aristata and Cyclosorus dentatus, the physiological and growth characteries as nitrogen application rate such as $NaNO_3$ 0.0mg/L, $NaNO_3$ 0.5mg/L, $NaNO_3$5.0mg/L, $NaNO_3$ 50mg/L and $NaNO_3$ 500mg/L were surveyed. 1. A significant changes of Rumohra aristata, in top growth was not distinctive. However, as nitrogen application rate increased, the numbers of leaves declined and the content of chlorophyll and the number of wilted leaves increased. 2. As nitrogen application rate increased, the top growth of Cyclosorus dentatus and the content of chlorophyll was increased. However, its overall, ornamental value was reduced due to the rising number of wilted leaves and the declining number of new leaves.