| 摘要 |
PURPOSE:To obtain culture soil for suppressing bacterial damping-off of paddy rice plant as an important blight of raising seedling of paddy rice plant, containing a powdered porous substance. CONSTITUTION:10-80wt.% one or more natural soils are blended with 0.1-20wt.% porous substance having a fine pore structure of <=30nm diameter, comprising woody, coconut shell-based or coal-based active carbon, active alumina, etc., optionally vermiculite, peat-moss, etc., adjusted to pH and mixed with fertilizer and made into a granular or powdery state to give the objective culture soil. |
