| Buckaroo i just skimmed through the growth parameters for the mushrooms listed in GGMM and found what you say to be a generalizable truth ( not neccesarily fact but it works for the mushrooms in the book at least) Almost all listed required greater than 5,000 ppm for the spawn run and then required much less for primordia formation usually around 1,000-2000 ppm. Theres always someone whose gotta be different and mushrooms are no exception- hericium erinaceus needs a whopping 5,000 to 40,000 ppm for spawn run and ONLY 500-700 ppm for primordia formation. Hericums in nature love to invade tree wounds with strong sap run.....i wonder if the sap prevents air from getting to the mycelium. just a wild ass theory there...no real proof |