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一、代料栽培的理论依据和意义代料栽培是指利用木屑及各种农作物副产品及工业下脚料为原料进行食用菌栽培的一种新的栽培形式。众所周知,食用菌所需营养最主要的是氮源和碳源。氮源可从麸皮、谷糠等有机氮和硫铵等无机氮中获得;碳是食用菌生活中另一种重要元素,约占菌体成分的50～65%。食用菌不能利用二氧化碳和碳酸盐等无机碳源,它所需要的碳素全部来自有机态碳。如葡萄糖、蔗糖、有机酸和醇等小分子有机物,以及纤维素、半纤维
First, the theoretical basis and meaning of substituting cultivation Substitute cultivation refers to the use of wood chips and a variety of crop by-products and industrial waste as raw material for edible fungus cultivation of a new form of cultivation. As we all know, the most important nutrients needed by mushrooms are nitrogen and carbon sources. The nitrogen source can be obtained from inorganic nitrogen such as bran, bran and other organic nitrogen and ammonium sulfate; carbon is another important element in the life of edible fungi, accounting for 50-65% of the bacterial components. Edible mushrooms can not use inorganic carbon sources such as carbon dioxide and carbonates, all of which require carbon from organic carbon. Such as glucose, sucrose, organic acids and small organic molecules such as alcohol, and cellulose, hemicellulose