... Humic Acid Soil Conditioner Granule NPK: 3-5% , Humic acid : 70%-75%, Trace element: Ca, Mg, S, Cu, Zn,Mn, Mo Humic Acid Soil Conditioner Granule :SpecificationAppearance: black brown granule Diameter : 2-4mm Humic acid ... S, Cu, Zn, Mn, Mo Humic Acid Granular Specification: ITEMS PROPERTIES Source:Leonardite or ... 4mmSolubility in waterNot soluble in waterOdorodorlessHumic acid (dry basis)70-75%Organic ...