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—、主要异常现象及病因1、退菌丝即茵丝萎缩、菌丝自溶。主要原因是基料配比不尽合理，堆酵不当，致使播种后的基料继续产热，料温超过37℃，使菌丝萎缩或自溶；另外，栽培方式也是重要原因之一；基料及覆土的含水率过高，通气不良也可造成该现象。2、烂料①基料酸化、腐败原?
-, the main anomalies and causes 1, retreat mycelia that Yin Yin atrophy, mycelium autolysis. The main reason is the unreasonable ratio of base material and improper heap fermentation, which causes the base material after sowing to continue to generate heat. The temperature of the material exceeds 37 ℃, causing the atrophy or autolysis of the mycelium. In addition, the cultivation method is also one of the important reasons. Material and casing moisture content is too high, poor ventilation can also cause this phenomenon. 2, bad material ① base material acidification, the original corruption?