2.7. Casing
When substrate was completely colonized (12 days post inoc- ulation), a 3e4 cm layer of Sphagnum Peat Moss and CaCO3 1:1 (v/v) with addition of 65% of water were applied on top of the substrate. Final moisture and pH of the mixture was 79% and 7.25, respec- tively. Containers were placed back in the incubation room.