Studies on Potential utilization of Earthworm Cast as Vegetable Plant Growth Media - Effects of mixing ratios with earthworm cast in nursery soil on pepper(Capsicum annuum L.) seedling growth -

원예용 육모 상토로서의 지렁이 분립의 이용에 관한 연구 - 지령이 분립의 혼합비율이 고추묘의 생육에 미치는 영향 -

Earthworm cast was investigated in this study in order to domestically develop inexpensive and safe plug nursery soil. 20,30,40 and 50% of earthworm cast were added to the nursery soil as vegetable plant growth media, in which peatmoss and vermiculite constituted the rest of the soil. The effects of earthworm cast on the growth of pepper (Capsicum annuum L.) seedling were obtained as follows. 1. According to the growth stages, significant differences(p=0.001) were recorded in number of leaves, leaf area and biological dry matter yield per plant(shoor or root dry matter yield per plant). In view of mixing ratios in the nursery soil, number of leaves, leaf area and stem weight per plant showed differences significantly at 1% level and leaf weight, root weight and biological dry weight per plant at 5% level, respectively. 2. The nursery soil with earthworm cast showed increased number of leaves and leaf area per plant compared to the commercial nursery soil particularly in the later stage of this study than in the earlier stage 3. Through the total period of seedling growth, leaf weight, stem weight and root weight per plant in the nursery soil with earthworm cast were genrally higher than those in the control and this trend was apparant in the treatment of more than 40% of mixing ratio with earthworm cast. 4. Although leaf weight per plant was higher than stem weight per plant till the 3rd week, from the 4th week stem weight per plant was getting higher. In the later stage of seedling growth, the stem weight was higher in the earthworm cast mixed treatment than that in the control. 5. There was no significant difference on biological dry matter yield in the earlier stage of this study, however in the later stage, it was higher in the earthworm cast mixed treatment than that in the control.

본 연구는 지렁이 분립의 혼합비율이 고추 플러그묘의 생육에 미치는 효과를 조사하기 위하여 수행되었다. 본 연구에서는 지렁이의 분립은 20,30,40,50%로 투입하고 나머지는 peatmoss와 vermiculite로 보충하여 배합하였다. 얻어진 결과는 다음과 같다. 1. 엽수, 엽면적, 건물수량등에서 차이가 있었으며 (0.1%의 통계적 유리성), 지렁이 분립의 혼합비율에 있어서는 엽수, 엽면적 및 경중에서 1%와 엽중, 근중 및 생물학적 건물수량에서는 5%의 유의성이 인정되었다. 2. 지렁이 분립을 혼합한 상토가 국내 시판중인 상토 보다 조사후기에 접어들수록 많은 엽수와 엽면적의 증거를 나타내었다. 3. 지렁이 분립을 처리한 상토에서 대조구보다 전 육묘기간을 통해 엽중, 경중 및 근중 등이 전반적으로 높았는데, 이러한 경향은 지렁이 분립의 비율이 40% 이상에서 현저하였다. 4. 조사시작 후 3주째까지는 엽중이 경중보다 높았지만 4주째 부터는 경중이 더 높았으며, 또한 육묘후기에는 지렁이 분립을 혼합한 처리에서 대조구 보다 경중이 더 높았다. 5. 생물학적 건물수량은 조사초기에는 처리간 차이가 없었으나 후기에는 지렁이 분립을 혼합한 처리구가 대조구 보다 높았다.