TBIO Humikey 800 Granular It is a concentrated potassium humate isolated from leonardite; it is rich in humic and fulvi acid content as well as trace elements. Water SolubilityTotal Humic extracts (dry basis)Humic acid (dry basis)Potassium (K2O dry basis)Moisture size 97% 85% 80% 10% 15%0.2-1mm Application: TBIO Humikey is widely applied in agricultural and horticultural crops, fruit trees, landscaping, gardening and pasture 1. Base application: 2-7kg/ha or 5% of total fertilizer application 2. Drop irrigation: 1-2kg/ha, flood: 2-2.5kg/ha 3. Foilar application: 1-2g/l, 1-2kg/ha