... Ca, Mg, S, Cu, Zn,Mn, Mo Humic Acid Soil Conditioner Granule :SpecificationAppearance: black brown granule Diameter ... Mg, S, Cu, Zn, Mn, Mo Humic Acid Granular Specification: ITEMS PROPERTIES Source:Leonardite or Lignite Appearanceblack ... %Organic matter (dry basis)80-85%Content of waterNaturePH value5-7 Packing: 25kg /PP. ... stages Storage: should be stored out of direct sunlight and preferably in a dry ...