Effects of different Lentinus edodes residue ratios on the cultivation of Auricularia heimuer

CUI Hui; PENG Keyan; ZHAO Shufang; ZHANG Yan; GONG Zhiyuan; HAN Jiandong; GAO Xia

doi:10.16861/j.cnki.zggc.2025.0193

Abstract：To address the issues of environmental pollution caused by Lentinus edodes residue and the high production costs for Auricularia heimuer,this study investigated the effects of different Lentinus edodes residue ratios(0％,10％,20％,30％,40％,50％,60％,70％,and 80％,corresponding to Formulations Ⅰ to Ⅷ)in the cultivation substrate on the growth of A.heimuer,and evaluated the feasibility of using Lentinus edodes residue to replace apple wood sawdust.The results showed that Lentinus edodes residue is rich in nutrients,with higher content of N,P,K,and ash compared to apple sawdust,making it a suitable cultivation material for A.heimuer.In formulation Ⅲ,the mycelial growth rate was the fast-est,significantly exceeding that of the control and other formulations.Additionally,this formulation promoted the earli-est primordia formation,2 days earlier than CK,with a primordia uniformity of 100％.In terms of yield and efficiency,Formulation Ⅲ performed the best,achieving a total of fresh ear output of 822.72 g·bag-1 and a biological efficiency of 96.79％.From Formulation Ⅰ to Ⅷ,both the total fresh ear output and biological efficiency showed an initial increase followed by a decreasing trend.Based on a comprehensive evaluation using fuzzy membership function method,it was determined that,with fixed supplementary materials(wheat bran,soybean powder,lime,and gypsum)accounting for 13.5％of the substrate,the optimal economic benefits for A.heimuer cultivation could be achieved when the Lentinus edodes residue constituted 30％and apple wood sawdust 56.5％of the formulation.