몇가지 양분 결핍에 대한 벼 유묘의 생육반응 = Growth Responses of Rice Seedlings to Deficiencies of Several Mineral Nutrients

다국어 초록 (Multilingual Abstract)

Infant seedling transplanting outweighs direct seeding in stability, productivity, and product quality of rice cultivation though it requires intensive management in seedling nursery. This study was conducted to identify key mineral nutrients for the production of quality infant seedlings by analyzing the effects of mineral nutrients deficiency on early seedling growth. Deficiency of N, P, K, Ca, Fe, or all nutrients was induced by using Yoshida`s nutrient solution for up to 10 days from germination or 5 days after germination in Dasanbyeo. Seedling height and fresh weight, shoot fresh weight, root number, root length, and root fresh weight were decreased by deficiency of the nutrients, but most severely by N or Fe deficiency. This result demonstrates the relatively greater importance of N and Fe than other nutrients in early seedling growth. Seed germination was little affected by any nutrient. The results indicate that additional supply of nutrients should be considered based on the nutrients levels of nursery soil for quality seedling production.