Mushroom rearing preparations; growth regulating preparations for mushrooms cultivation; mycelium growth stimulators; mushroom growth stimulators; biostimulants for mushrooms; mushroom yield enhancers; shiitake mushroom yield enhancers; maitake mushroom (mushrooms) yield enhancers; mushroom yield enhancers mainly made from tea extracts; shiitake mushroom yield enhancers mainly made from tea extracts; maitake mushroom (mushrooms) yield enhancers mainly made from tea extracts; tea extracts for ...