... 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): 80%-85% NPK: 3-5% ... Trace element: Ca, Mg, S, Cu, Zn, Mn, Mo Humic Acid Granular Specification ... 2-4mmSolubility in waterNot soluble in waterOdorodorlessHumic acid (dry basis)70-75%Organic matter (dry ...