Place of Origin : Xiamen,China

first grade granular Appeance: black irregular granular (1-5mm size granular more than 90%) Soluble matter in water (dry base): 85.0%min Humic acid (dry base): 65.0%min K2O (dry base): 10.0%min Moisture: 15.0%max PH: 9.0-10.0 residues bigger than 0.5mm: 5.0%max packing: 25kgs plastic woven bags, 20mts/20'fcl