상수도 슬러지(WSPS)를 분화용 배지로 활용하고자 피트모스 와 휠라이트의 혼합상토에 WSPS를 다른 비융로 혼합하여 HederG helix를 식재 60일과 90일 후 생장과 무기원소함량올 조사하였다. 식재 전 배지의 유기물함량은 WSPS가 혼합된 처리구에서 대조구 에 비해 다소 높게 나타났고 유효인산은 전반적으로 WSPS가혼합 된 배지에서 낮게 나타났다. 질산태질소의 함량은 WSPS가 부피비 로 각각 25,50%가 합유된 처리구에서 높게 나타났다. 처리 후 60일과 90일이 경과한 후, 초장과 엽수,지상부 생체중은 대조구와 CW구에서 통계적£로 유의성이 없었으나 분지수는 CW구가 가 장 높게 나타났다. 식물체 부위별 미량원소 함량은 Fe과 Mn에서 대조구에 비해 WSPS가 혼합된 배지에서 높았고 특히 Fe는 지상 부보다지히부에서 10배 가까이 높게 나타났다. 중금속의 경우,Cd 는 모든 처리구에서 검출되지 않았으며 Pb는 WSPS가 혼합된 배지에서 미량으로 검출되었다. 이상의 결과에서 WSPS는 H. helix 의 재배용 배지로 이용가능성이 높을 것으로 판단된다.
In order to utilize a water supply plant sludge (WSPS) as a potting medium amendment, growth and mineral uptake in Hedera helix (ivy) were investigated after plants were grown for 60 and 90 days in potting media consisting ofpeatmoss, perlite. and WSPS with different mixing ratios. TI10ugh organic contents of media treated with WSPS were higher than those of control before planting, the concentrations of available phosphate were lower in media treated with WSPS. The facts that any treatment treated with WSPS was higher in nitrate nitrogen (N03-N) than control indicate WSPS may be utilized as a fe11ilizer with potential nitrogen source. At 90 days after treatment, differences of the plant height, number of! eaves and fresh weight of shoot were not significant among treatments. However, the number of branches with WSPS showed higher value of2.0 than control of 1.5. Contents of trace elements, such as Fe and Mn, were higher in ivy grown in media with WSPS than control. Especially, Fe contents were I 0 times higher in shoots than in roots. In all the treatments, Cd was not detected in ivy. Although Pb was detected in the treatments with sludge, but detected content ofPb was negligible amount. ln conclusion, WSPS may be used as a potting medjum amendment for ivy.