Asked September 14, 2018, 12:58 PM EDT
What is the chemical analysis of mushroom compost as sold to consumers ?
Cape May County New Jersey
There will be variability of the analysis based on the amount and type of materials used in the production. Here are a couple of papers that provide some data that will give you an idea of the range of values.
Also, the producer should be able to provide that information on request.
Hope this helps!