Humic Acid is extracted from natural leonardite source which has high content of humic acid. It is the raw material of humic acid fertilizer such as potassium humate, sodium humate, potassium fulvate and other organic formulations. Humic Acid Appearance: powder/ball/granule Size: 80mesh/2-5mm/1-2mm Humic Acid: 30%/40%/50%/60% Organic matter: 65%/70%/85%/90% Water solubility: insoluble Packaging: 25kg/kraft paper bag
