... seaweed . specification: powder, flake, solution Seaweed fertilizer (manufactuer)Seaweed fertilizer (powder ,flake) and seaweed fertilizer solutionOur seaweed fertilizer are finely derived from brown seaweed ... nutrition element and plant growth regulators including nitrogen, phosphate, potassium, calcium, magnesium, microelement (Cu, Fe, Zn, Mn, B), alginic acid, cytokinin ...