Jai Hyun Park
Gyeongsang National University, South Korea
Title: Evaluation of the availability of growing media containing woody biomass on experimental slope for slope greening
Biography
Biography: Jai Hyun Park
Abstract
Many road slopes have been created along with many road works. Since these road slopes have problems of landslides and soil erosion, there are many studies on road slope greening. However, it is difficult to grow plants on a general slope. Generally, growing medium is used to replace soil for plant growth and in recent years, many studies have been conducted to produce the growing medium using various materials such as agricultural byproducts and sewage sludge. Since, the study on the road slope greening to use this growing medium is quite limited, we produce the growing media using woody biomass and apply the prepared growing media to the preliminary slope to determine the germination of Lotus corniculatus. The growing media was prepared by mixing woody biomass, peat, perlite and sodium nitrate. Soil was used as a control. Soil, soil and growing media mixture (1:1, w/w) and growing media were applied to slope to observe physical and chemical properties and germination of Lotus corniculatus. As a result, physical properties (moisture content, bulk density and porosity) were improved by using growing media to compare soil for plant growth. Among the chemical properties, the organic matter, available phosphate and CEC were also higher in the using growing media than soil. However, the germination of Lotus corniculatus was the highest in the mixture of soil and growing media followed by the higher in the soil. The lowest germination was in the growing media. In conclusion, when the results of physical and chemical properties and germination, it was confirmed that the mixture of soil and the growing media was most suitable for plant growth on the slope.