폐하수슬러지 퇴비 시용이 토양의 화학성 및 옥수수의 생육에 미치는 영향 = Originals : Effects of Municipal Sewage and Industrial Wastewater Sludge Composts on Chemical Properties of Soil and Growth of Corn Plant

다국어 초록 (Multilingual Abstract)

To study the possibility of agricultural utilization of the municipal sewage and the industrial wastewater sludges, the chemical properties of soil, the growth response of corn plant and uptake of inorganic nutrients in plant tissues were investigated by application of the composts made of the sludges to the pots at the rate of 2,000㎏/10a. The contents of organic matter, T-N, P₂O_5 and K in soil were increased by application of the composts. Each heavy metals contents in soil were increased very slightly by application of the composts. The fresh weights of corn plant were increased with 9∼19% and 60∼79% at the plot of compost and NPK+composts in comparing with the plot of NPK, respectively. Uptake of N, P₂O_5, K₂O, CaO and MgO in stem and leaf of corn plant were increased by applications of the composts.