蘑菇培养料中一般都要添加石膏,尤其是在大量使用鸡粪和合成堆肥中石膏用量还要适当增加,通常每吨培养料要添加石膏15～20公斤(或以等量的碳酸钙代替)。添加石膏的主要作用是:①能提高培养料的缓冲能力,抑制由NH_4所引起的,甚至在播种后也会发生的pH值过高的副作用;②中和发菌期间,尤其在子实体形成阶段,蘑菇新陈代谢所产生的 Mushroom cultivation materials generally have to add gypsum, especially in the heavy use of chicken manure and synthetic compost in the amount of gypsum should also be an appropriate increase, usually per ton of culture to add gypsum 15 to 20 kg (or an equivalent amount of calcium carbonate instead) . The main effects of adding gypsum are: ① can improve the buffering capacity of culture material, inhibit the NH_4 caused, even after the sowing will occur too high pH value side effects; ② during neutralization and germination, especially in the formation of fruiting bodies Stage, produced by mushroom metabolism