草菇一般播种后１２小时内菌种块即可萌发吃料。如果播后２４小时仍不萌发，就证明是因菌丝不吃料而发生了萎缩现象，或头潮菇产出后出现菌丝萎缩现象。据调查，产生这种现象的原因，一是培养料偏厚，进床后料温升高，或露地阳畦栽培覆盖物偏薄等原因，引发高温烧菌所致；二是 Straw mushrooms generally sow within 12 hours after germ breeds can germinate eat. If you still do not germinate 24 hours after sowing, it is proved that due to hyphae do not eat material and the occurrence of atrophy, or the first tide mushroom yield mycelium atrophy. According to the survey, the reasons for this phenomenon, one is the training material is too thick, into the bed after the material temperature increase, or open cover cultivation cover is too thin and other reasons, caused by high temperature bacteria; second is