Reutilization of Waste Nameko (Pholiota microspora) Mushroom Substrate for Cedar (Cryptomeria japonica) Sawdust Enokitake (Flammulina velutipes) Cultivation

Abstract

Two cultivation trials were conducted to test the feasibility of using waste beds of nameko mushrooms as a replacement for the substrate in the cultivation of enokitake mushroom beds with cedar sawdust as the medium substrate. In the first trial, the culture medium with cedar sawdust as the entire medium substrate was used as the control group (hereinafter referred to as "0％ replacement"), and the culture medium with 10, 20, 30, 50, 70, and 100％ by volume of cedar sawdust as the substrate was used as the experimental group. In the second, 0.95 g of calcium carbonate per test bottle was added to the first experimental group. The results showed that no experimental group had a significantly increased yield of fruiting bodies than the 0％ replacement, but the difference in yield between the 0％ replacement and most of the experimental groups was about 10 g. The number of growing days was not clearly different between any of the experimental groups and 0％ replacement. These results suggest that wast substrate of nameko mushroom would be useful for enokitake cultivation.