Water-soluble / specialty fertilizers
Fulvic Acid Concentrate — 50% Soluble Chelator for Foliar Spray & Fertigation
FOB Black Sea / MENA · CFR/CIF worldwide on request
Indicative price
USD 492–600 / MT
Indicative range, firm quote on request
Key parameters
Quick contact
Full product details
Product overview
Fulvic acid concentrate is a high-purity fraction of humified organic matter — the low-molecular-weight component that remains fully soluble across the pH range encountered in irrigation water and foliar spray tanks. At 50% fulvic acid on a dry basis, each tonne delivers a concentrated chelating agent that binds iron, zinc, manganese and copper into plant-available complexes without the heavier humic residue that can clog drip emitters at high injection rates.
Export buyers use fulvic acid in three main channels. Fertigation operators inject dilute fulvic solutions to improve micronutrient uptake in alkaline soils where free metal ions precipitate. Foliar-programme suppliers add fulvic to stress-recovery sprays on fruit trees, vegetables and turf after heat, salinity or transplant shock. Liquid-fertilizer and biostimulant formulators incorporate the concentrate as a carrier base for proprietary blends sold to greenhouse clusters, protected-crop growers and high-value horticulture estates across the Middle East, South Asia and East Africa.
Production routes include alkaline extraction of leonardite followed by fulvic fraction separation, or enzymatic hydrolysis of peat and lignitic feedstocks. The potassium salt form contributes 8% K2O and dissolves instantly at field concentrations — a practical complement to chloride-free potassium programmes built on SOP or potassium nitrate.
Full specification
| Fulvic acid (dry basis) | 50% min |
| Humic acid | 5% max |
| Potassium (K2O) | 8% min |
| Water solubility (20°C) | 100% |
| Water insoluble | 0.2% max |
| Moisture | 10% max |
| pH (1% solution) | 4.5–6.5 |
| Appearance | Golden-brown powder or amber flakes |
| Particle size | 80–120 mesh powder (standard) or 2–4 mm flakes on request |
| HS code | 3824.90 |
- FOB
- CFR
- CIF
- Foliar spray
- Fertigation
- Biostimulant
- Chelator
Loading ports & logistics
Fulvic acid concentrate ships as non-hazardous organic fertilizer input under IMDG general cargo rules. The powder grade is hygroscopic — PE-lined bags and container desiccants are standard to prevent caking during transit through humid ports.
FOB from Black Sea container terminals and MENA repackaging hubs. Standard parcel: 24 MT per 20-foot container (25 kg PE-lined PP woven bags, palletised) or 100–500 MT FIBC parcels on coaster vessels for regional distribution centres. Fine powder grades load at 120–200 bags/hour with dust-extraction hoods at origin warehouses.
CFR/CIF to South Asia (Nhava Sheva, Mundra, Chittagong), East Africa (Mombasa, Dar es Salaam), Middle East (Jeddah, Jebel Ali, Dammam) and Mediterranean horticulture ports. Lead time 10–22 days from contract to loading window, subject to fractionation-line capacity and bagging availability at origin.
Packaging & documentation
Standard export pack: 25 kg PE-lined PP woven bags, palletised (40 bags per pallet) and stretch-wrapped for container stuffing. One-tonne FIBC big bags with moisture-barrier liner available for liquid-fertilizer plants and biostimulant blending facilities with pneumatic discharge. Amber powder grade ships in double-lined bags to limit UV degradation during extended storage at destination.
Each lot includes mill certificate of analysis (fulvic acid, humic acid, K2O, moisture, water solubility, pH), commercial invoice, packing list and bill of lading. Certificate of origin, phytosanitary clearance where required by destination customs, and third-party inspection at loading (SGS, Bureau Veritas) available for LC-backed contracts. SDS per GHS supplied on request.
FAQ
When should buyers choose fulvic acid concentrate instead of humic acid concentrate?
Choose fulvic acid when the priority is rapid nutrient chelation, foliar uptake or injection through fertigation lines with minimal residue risk. Fulvic molecules are smaller and more mobile in soil solution than humic fractions, making them effective for stress recovery sprays and micronutrient carrier formulations. Humic acid concentrate remains the better option when the goal is long-term soil organic-matter building and cation exchange improvement.
What foliar dilution rate is recommended for fulvic acid concentrate?
For field crops, dissolve at 0.02–0.1% in spray water (0.2–1.0 g/L) and apply during early morning or late afternoon to avoid leaf burn. Greenhouse operators often run 0.05–0.15% in weekly maintenance passes. Always jar-test with hard water before tank mixing — fulvic acid can precipitate with high calcium or iron if pH rises above 7 in the stock solution.
Can fulvic acid concentrate be tank-mixed with crop protection products?
Fulvic acid is widely used as a tank-mix adjuvant to improve pesticide and micronutrient penetration through leaf cuticles. Compatibility depends on product pH and formulation type — conduct a small-scale mix test before full application. Avoid combining concentrated fulvic stock with alkaline copper or lime-sulphur sprays in the same tank; split applications by 24–48 hours when in doubt.
Related products
- Humic Acid Concentrate — high-humate grade for soil conditioning and paired organic programmes
- Water-Soluble NPK — multi-ratio fertigation grades for fulvic-enhanced nutrient delivery
- Zinc Sulphate — micronutrient source commonly chelated with fulvic in foliar blends