用塑料袋生产食用菌三级种,要在袋料中央打接种孔,最初是用木棒打孔,后来改用铁棒。木棒打接种孔阻力大,向外拔时易带出培养料堵住接种孔;用铁棒打接种虽然省力,但向外拔时也存在带料堵孔的问题。笔者采取在先端渐尖的铁棒后面装一个小圆盘,因铁 With plastic bags of edible fungi three species, to play the central hole in the bag hole, the first hole is perforated with sticks, then switch to iron bars. Injecting holes with wooden stick resistance, easy to bring out when pulling out culture materials to plug inoculation hole; vaccination with iron rods although labor-saving, but when there is also the problem of material plugged holes. I take a tip in the tip of the iron behind a small disc, due to iron