You are looking for mushroom compost
Mushroom Compost is made from agricultural materials, such as hay, straw, straw horse bedding, poultry litter, cottonseed meal, cocoa shells and gypsum.
www.mushroomcompost.org
About Mushroom Compost, About Liquid Lime, wholesale and retail bulk landscape materials and your source for Dixie Mix real stuff mushroom compost,
www.mushroomcompost.com/index.html
Mushroom compost is a viable and useful by-product of mushroom farming. Overall, compost can be very beneficial to the soil, and mushroom compost is no exception.
www.mushroomcompost.org/faqs.htm
Mushroom compost is rich in soluble salts and other nutrients and can kill germinating seeds and harm salt-sensitive plants including rhododendrons and azaleas.
extension.oregonstate.edu/news/story.php?S_No=29&s...
Mushroom Compost. Commercial mushrooms grow in a specially formulated and processed compost made from wheat Mushroom soil is great for gardens as a slow release organic
www.americanmushroom.org/compost.htm
Spent mushroom compost is the residual compost waste generated by the mushroom production industry. Mushroom compost may also contain pesticide residues, particularly
en.wikipedia.org/wiki/Spent_mushroom_compost
Mushroom compost. Q: Can you tell me what mushroom compost is and explain the advantages Mushroom compost is great for gardens as a slow-release fertilizer
www.finegardening.com/how-to/qa/mushroom-compost.a...
Mushroom Compost. Recently on a few of the composting and compost tea listservs, there have been some questions about mushroom compost, and if it is any good.
squtch.quiet-like-a-panther.org/story/mushroom_com...
Mushroom compost is, in my opinion, one of the most over-hyped gardening products on garden shop shelves. Let us examine the data.
www.simplegiftsfarm.com/mushroom-compost.html
Two types of material are generally used for mushroom compost, the most used and least Synthetic compost is usually made from hay and crushed corncobs,
www.mushroomcouncil.com/aboutmushrooms/sixsteps.ht...
