1.natural seaweed extract 2.20% organic matter 3.rich npk element 4.yield increase significant 1. Active ingredientsNPK >= 18%-30% ... . b. this product is both rich in microelements (such as NPK ) , and in microelements, such as Ca, Mg, Fe, Zn, and ... consulting the technology department of our company. organic&inorganic seaweed NPK-25 fertilizer