... element: Ca, Mg, S, Cu, Zn,Mn, Mo Humic Acid Soil Conditioner Granule :SpecificationAppearance: black brown granule Diameter : 2- ... 4mm Humic acid (dry base): 70%-75% Organic matter (dry base): ... : Ca, Mg, S, Cu, Zn, Mn, Mo Humic Acid Granular Specification: ITEMS PROPERTIES Source:Leonardite or Lignite Appearanceblack brown granuleSize ...