Mushroom compost

Mushroom compost (also called mushroom soil or mushroom culture substrate) is used in mushroom production industry. Mushrooms are cultivated in this substrate under controlled climatic conditions. The substrate primarily serves as a moisture reservoir.

It is readily available (bagged, at nursery suppliers), and its formulation generally consists of a combination of wheat straw, dried blood, horse manure and ground chalk, composted together. Each ton of horse manure contains an average of: