| 摘要 |
PROBLEM TO BE SOLVED: To obtain a mushroom cultivation bag solving a problem that conventionally a cultivation bag main body of this kind is equipped with a filter, however, various germs pass through the filter and reach a medium and there is a drawback that the various germs propagate in the medium in the vicinity of a vent hole to inhibit growth of cultivated mushroom. SOLUTION: The mushroom cultivation bag has the vent hole that is not one large hole but is composed of a large number of small holes dispersed in a fixed range to prevent propagation of various germs. COPYRIGHT: (C)2006,JPO&NCIPI
|
