Property and quinone profile analysis of the compost made in Kuriyama town

[Synopsis] Application of compost made from garbage and bio-sludge show crop growth promoting effect in the field. We have evaluated to a property of the compost made in Kuriyama town (Hokkaido). Kuriyama town have a compost producing facility established in 2004. Mainly, we have evaluated suppression of the plant disease and plant growth promotion by using this compost. Application of this compost had promoted the cucumber growth in dose dependent manner. Application of native compost was more better than autoclaved compost in root growth of cucumber seedlings. This fact suggest the promoting effect of root growth is attributed to some biological factors in this compost. Additionally, the compost suppressed to develop plant disease cause by Pythium sp. in inoculation test using cucumber seedlings. For monitoring of microbial community of the compost, we have adopted microorganism respiratory quinone analysis by HPLC. As the result, we have detected large amount of ubiquinone 8 and menaquinone 6 by quinone profile analysis and have determined microbial community in the compost. In this compost, there were a lot of bacteria Cytphaga sp., Bacillus sp. and Flavobacterium sp. as acting fermentation process