... Soil Conditioner NPK: 3-5% , Humic acid : 50%-55%, Trace element: Ca, Mg, S, Cu, ... Zn,Mn, Mo Humic Acid 50-55% Granule Soil Conditioner :SpecificationAppearance: black brown granule Diameter ... : 2-4mm Humic acid (dry base): 50%-55% Organic matter (dry base): 60%-65% NPK ... in waterNot soluble in waterOdorodorlessHumic acid (dry basis)50-55%Organic matter (dry basis)60-65%Content ...