Potassium Fulvate is humic acid and fulvic acid potassium salts,completely water soluble with pH around 9. Its strong ability of resisting hard water makes this product can dissolve in all kinds of irrigation water,can be used as foliar spray fertilizer directly. Other names: Resisting hard water potassium humate, deflocculation potassium humate or non-flocculating potassium humate.
![]() |
![]() |
![]() |
Appearance | Black Flake/Powder | Black Flake/Powder |
Water solubility | 100% | 100% |
Potassium(K₂O dry basis) | 10.0% min | 10.0% min |
Humic Acid(dry basis) | 60.0%min | 60%min |
Fulvic Acid(dry basis) | 30.0%min | 15%min |
Moisture | 15.0%max | 15.0%max |
Particle size | 1-2mm/2-4mm | 1-2mm/2-4mm |
Fineness | 80-100mesh | 80-100mesh |
pH | 9-10 | 9-10 |
Fertigation and Foliar | |
Nitrogen | 50-100 grams / hectare for each unit of Nitrogen applied as UAN, Urea,SOA |
e.g. | 2.3-4.6 kg/ha with 100 kg/ha of Urea |
e.g. | 2.1-4.2 kg/ha with 100 litres of UAN |
e.g. | 1.0-2.1 kg/ha with 100 kg/ha of SOA |
Salt-water | 0.5-1 kg/ha with each and all irrigation applications |
Salt-Soil Mitigation | 0.5-1 kg/ha with each and all irrigation applications |
Soil Improvement | 0.5-1 kg/ha with each and all irrigation applications |
N.B. | This product is not compatible used in concentration with solution pH under 4. For combination with elements or chemicals solution which pH is under 4, select fulvic acid. |
If you are unable to locate a Chemical or Mineral you need, our sales department can custom source any needed materials for you directly.