蘑菇的增减料须经发酵腐熟。因而有的菇农认为发酵腐熟程度越高越好，其实不然。这是因为：l发酵过熟的培养料，营养成分已有很大部分被微生物消耗了，不能满足蘑菇对营养的需要；2过熟的培养料中草茎已腐熟，失去弹性，通气性差，不利于蘑菇菌丝体的呼吸；3过熟的培养料，常因 Mushrooms increase or decrease the material to be decomposed by fermentation. Therefore, some farmers believe that the higher the degree of maturity fermentation, the better, actually not. This is because: l fermentation overripe culture materials, nutrients have been consumed by a large part of the microorganisms, can not meet the nutritional needs of mushrooms; 2 overripe culture medium grass stem has been matured, loss of elasticity, poor ventilation, Not conducive to mushroom mycelium breathing; 3 over-cooked culture material, often due to