Substrates for soil-free growing; bacterial preparations for use in horticulture; soil improving preparations; fertilizers; charcoal for horticultural purposes; soil conditioners; fertilizers for soil and potting soil; plant growth regulators for agricultural purposes; nitrogenous fertilizers; biostimulants being plant growth stimulants; plant growth regulating preparations; hydroponic substrates; organic soil enhancement powders and preparations; soil improving agents; surfactant soil wettin...