| 摘要 |
The principal components, for the culture ground, of one or more plant materials, selected from grain hulls, saw dust, shredded pine bark, coconut fibers and hemp, and mineral materials, selected from perlite, dialomaceous earth, zeolite, vermiculite and montmorillonite, are mixed with addition of a binder of waste paper or pulp in the amount of 10-50 wt% relative to the whole of principal components to be further added with water for a uniform mixture, which is pressure formed into a shape with dehydration to be dried further until no change in weight occurs. |
