目前在食用菌生产上，扩接原种和栽培种，多采用将培养料装至距瓶口3～5厘米。然后用直径约1厘米的木棒在瓶中央，从上到下掏一孔洞，最后再灭菌接种。这样却存在着一些不足之处：如捣洞的木棒在抽出时，若不慎会使周围的培养料落入孔洞中，造成堵塞；并且培养瓶与瓶之间，也会 At present, the production of mushrooms, expansion of original species and cultivars, and more use of the culture material loaded to the mouth from 3 to 5 cm. Then use a diameter of about 1 cm stick in the middle of the bottle, dig a hole from top to bottom, and finally sterilized vaccination. However, there are some shortcomings: such as the stick when the hole in the hole, if inadvertently will make the surrounding culture materials fall into the hole, resulting in congestion; and between the flask and bottle, will