토양효소활성과 렌틸 발아/생장으로 평가한 토양첨가제의정화 처리토 건강성 증진 효과

초록

Soil amendments are often used to improve the soil health of recalimed soil that has lost its value and is only used for roadbackfill of landfill cover. In total, 10 soil amendments were tested on two types of soil, that is, landfarming-treated DDCsoil and thermally treated YJ soil. The 10 amendments were vermicompost (VC), peat moss (PM), chicken manure (CM),EM product (EM), chlorella (CCR), biochar (BC), compound fertilizer (CF), zeolite (ZL), dolomite lime (DL), andgypsum (GS). After 10 weeks of incubation with 5% (W/W) of the amendment, 7 soil enzyme activities along withgermination and seedling growth of lentil were compared to the control. The results showed that the organic amendmentsCM and CR significantly enhanced the soil enzyme activities in both the DDC and YJ soils. However, the VC amendmentin both types of soils best enhanced the germination and growth of lentils. Furthermore, even after 10 weeks of incubationwith the amendment, plant stress and soil infertility, as indicated by the specific root length (SRL), still persisted despitethe addition of soil amendment materials. These results suggest that a longer duration than 10 weeks is necessary foramendments to take effect on soil health enhancement.

키워드