Nutritive substances for microorganism cultures, other than for medical or veterinary purposes; Nutritive additive to enhance the biological activity of water, soil, seeds and plants for purposes of fertilization and bioremediation of pollutants; Plant growth nutrients; Plant growth regulating preparations; Substances for regulating plant growth; Biostimulants being plant growth stimulants; Plant growth regulators for agricultural use; Substances for regulating growth in plants; Seaweed extra...