石膏,又叫硫酸钙,是平菇生长中重要的无机盐类之一。石膏可直接补足平菇生长的硫、钙营养元素,能使气态氮固定成化合态氮,减少培养料中氮素损失,加速有机质的分解,促使可溶性磷钾迅速释放,供平菇菌 Gypsum, also known as calcium sulfate, is one of the important inorganic salts in the growth of mushrooms. Gypsum can directly supplement the sulfur and calcium nutrients of Pleurotus ostreatus, which can fix the gaseous nitrogen into the compound nitrogen, reduce the nitrogen loss in the culture material, accelerate the decomposition of the organic matter, prompt the release of soluble phosphorus and potassium,