| 摘要 |
PROBLEM TO BE SOLVED: To provide a soil conditioner which is a natural material free from an adverse effect on an ecosystem and which collectively solves problems of high water repellency, a high C/N ratio and a decrease in the effect of preventing weeds from growing, in effectively utilizing a bark serving as an unused material containing various effective constituents. SOLUTION: A dried bark powder can be improved in reducing its high water repellency and high C/N ratio and can be effectively utilized as a soil conditioner provided with an effect of preventing weeds from growing, by mixing a dried bark powder with a powder of hinoki cypress leaves at a volume ratio of 1:(1 or greater). COPYRIGHT: (C)2004,JPO&NCIPI |
