... Ca, Mg, S, Cu, Zn,Mn, Mo Humic Acid 50-55% Granule Soil Conditioner :SpecificationAppearance: black brown granule Diameter : ... , Mg, S, Cu, Zn, Mn, Mo Humic Acid Granular Specification: ITEMS PROPERTIES Source:Leonardite or Lignite Appearanceblack brown granuleSize: 2 ... -4mmSolubility in waterNot soluble in waterOdorodorlessHumic acid (dry basis)50-55%Organic matter (dry basis)60-65%Content of ...