
There is hardly any mycelium to be seen, but it is present in the compost. The compost in a tunnel is white because of the mycelium, while compost that is filled into a growing room is reddish-brown. This is a big difference compared with compost that is incubated in a tunnel. If the compost is colonised in the growing room, it is left there so the mycelium stays intact. Generally speaking the optimal time is 16 to 19 days, but there are certainly also exceptions.Ĭolonisation in tunnels, versus colonisation in growing rooms The precise length of time this takes varies per system, season and type of compost. The compost is fully colonised at the moment that activity decreases. There is a simple answer to what the optimal time for colonisation of the compost is. Abundant growth causes a lot of activity, sparse growth causes little activity. Activity is the difference in compost and air temperature combined with the movement of air through the compost (in a tunnel) or around the compost (in a growing room). This is indicated by the compost activity. When the compost has been completely colonised by mycelium, growth stops of its own accord. Growth is initially slow, but after seven to eight days the mycelium grows exponentially.

Spawn is mixed through the compost and the thread-like mycelium carried by the spawn grows and colonises the compost. What happens during mycelium growth in the compost? Or when mycelium growth in compost took place in the growing room, it continues until the moment the compost is covered with casing soil.

Mycelium growth is the stage from the moment of spawning up to the moment the compost is removed from the tunnel and filled into the growing room.
