... many fields in modern agricultural and industrial production. Humic Acid is one of the major components of humic substances which ... ) Agriculture : with high content of organic matters, natural humic acid is the best additive for the organic fertilizer, raw material ... wastewater treatment agent,cathodal plate additive for accumulator. Specification:Humic Acid (dry basis): 45%min 45%min 50%min 55%min ...