... chelated form; 3,foliar fertilizer 100% water soluble npk fertilizer 19-19-19Balance formulas, high purity Soluble NPK fertilizer, easy to be ... .). TEST SPECIFICATION1 Appearance white or color crystal2N 19.0%min3 P2O5 19.0%min4 K2O 19.0%min5 Cl 0.1%max 6 ... mixes or with various nutrient. 100% water soluble npk fertilizer 19-19-19