March 2016

Mushroom Soil

The recipe for mushroom compost varies from company to company, but can include composted wheat or rye straw, peat moss, ground up corn cob, used horse bedding straw, chicken manure, cottonseed or canola meal, grape crushing’s from wineries, soybean meal, potash, gypsum, urea, ammonium nitrate and lime.

Huge piles of mushroom compost sit for about a month and do what compost does - heat up. The straw provides the structure and some food for bacteria, and the urea, cottonseed meal and chicken manure provide most of the nutrients.