Humic Acid 50-55% Granule Soil Conditioner NPK: 3-5% , Humic acid : 50%-55%, Trace element: Ca, Mg, S, Cu, Zn,Mn, Mo Humic Acid 50-55% Granule ... waterNot soluble in waterOdorodorlessHumic acid (dry basis)50-55%Organic matter (dry basis)60-65%Content of waterNaturePH value5-7 Packing: ... and different growth stages Storage: should be stored out of direct sunlight and preferably in a dry and cool place ...