Mushroom rearing preparations, namely, plant growth regulating preparations; growth regulating preparations for mushrooms cultivation; mycelium growth stimulators, namely, biostimulants being plant growth stimulants; mushroom growth stimulators, namely, biostimulants being plant growth stimulants; biostimulants for mushrooms being plant growth stimulants; Biostimulants being mushroom growth stimulants in the nature of mushroom yield enhancers, namely, compounds for stimulating fruiting of mus...