... organic agriculture.PHYSICAL DATAAppearance brown powderOdder characteristicWater Solubility 97% soluble pH 4-7GUARANTEED ANALYSIS Fuvic Acid 70 %K2O 12% ... , as chelating and buffering agents, respectively helps retain water soluble inorganic fertilizers, preventing them from leaching, and protect plants ... be stored under sealed moisture-proof condition. 80% Soluble Fulvic Acid Powder Fertilizer