期刊名称：Journal of Applied Sciences in Environmental Sanitation
印刷版ISSN：0126-2807
电子版ISSN：1978-6980
出版年度：2010
卷号：5
期号：4
页码：397-402
出版社：Sepuluh Nopember Institute of Technology (ITS)
摘要：Inhibitions of seed germination and plant injuries have been reported following the application of fresh or partially composted wastes to soil. However, effective test determining compost biomaturity after storage is on a trial and error basis. An incubation experiment and a pot experiment were conducted to investigate the decomposition, transformation and optimal application rate of compost, which was prepared from municipal solids waste. The compost showed inhibition of seed germination using aqueous extract of the compost when compared with distilled water or mature compost for their effect on germination and root development of Zea maize L. The germination index (G.I.) and the ratio of optical densities at 465nm and 665nm (E4/E6) of dilute aqueous extract were used to show the time required for municipal solid waste compost reaching its biomaturity. The E4/E6 ratio increased with time and then decreased after 30 days of decomposition. This decrease was linked with biomaturity and stabilization stage of the fresh compost, as observed with a decrease in inhibition effect on seed germination. With reference to the period of maturity of the compost, MSW compost was incorporated in to pots with sandy soil at different ratio of application three different ratio 25:75, 50:50, 75:25 and 100% compost. The results showed significant effects on plant height and dry mater yield. The optimal ratio of application was 50:50
