Vermicompost: Tool for Agro-industrial Waste Management and Sustainable Agriculture
2010 年 1 巻 2 号 p. 38-43
詳細
2010 年 1 巻 2 号 p. 38-43
Rapid increasing of agro-industrial waste production has caused a serious environmental damage in Thailand. Thus, a proper management of agro-industrial waste has become an important issue. The objective of this study was to prove vermicompost as a suitable tool for agro-industrial waste management. The experiment of feasibility study of using vermicompost to reduce the cadmium contaminated in some typical Thai soil (Nampong (Sandy) and Phimai (Clay) soil series) were conducted by spike soil at various concentrations of Cd (0, 5, 50 mg/kg of Cd) as CdCl2. The physical and chemical properties of soil were analyzed before and after compost and vermicompost. The results indicated that vermicompost could absorb the cadmium in sludge waste and subsequently reduce the cadmium contamination. Earthworm activity significantly increased the availability of soil pH, P, K, Na, Mg, Ca and decreased organic carbon as well as Cd contamination in soil. The production of earthworm was increased followed by the increasing of agro industrial waste. Thus vermicompost is a promising method for agro-industrial waste management that use locally available materials, enrich microorganism in soil and less impact on the environment.
