A Method for Measuring the Degree of Fermentation of the Edible Mushroom Cultivation Substrate

In the study, eight treated substrates were designed to explore the possibility to determine the degree of fermentation of the substrate by the mycelial growth rate, whose main raw material includes composted pine sawdust, oil tea shell and hickory shell respectively, and auxiliary materials contain ribran, soybean powder, etc. The result showed that the shiitake mushroom grew well in 7 treatments whose mycelial growth rate could be measured on 3rd days when the mycelial growth rates of P1, C1 and H1 were 5.0 mm/d,9.66 m/s, 13.33 m/s. Auricularia cornea var. Li exhibited the fastest growth on P1 substrate. And mycelial growth rates of P1, P0 and CK1 were 5.8 mm/d,3.66 mm/d, and 4.66 mm/d on 3rd day, respectively. The growth ratesPleurotus geesteranus of C1, CK2 and P0 were 9.0mm/d, 11.66 mm/d, and 4.00 mm/d on 3rd day, respectively.