Sodium Fulvate Flakes I (Type I)
Type I — Balanced Fulvic + Humic, Fast Plant Uptake
Every lot ships with a Certificate of Analysis stating actual tested values.
Product Overview
Sodium Fulvate is the sodium salt of fulvic acid, extracted from leonardite-sourced humic substances. Fulvic acid is the short-chain, low-molecular-weight fraction of humus, so it moves through leaf and root cuticle within hours and chelates nutrients tightly. Sodium fulvate is highly water soluble and is used as a foliar biostimulant, a micronutrient chelate, an aquaculture water aid and a feed additive.
Sodium Fulvate Flakes I (Type I) carries 50% fulvic acid and 50% humic acid on a dry basis with 95% water solubility. Type I is the balanced grade — a strong fulvic load for fast foliar and root uptake plus the soil-conditioning humic fraction, in one fully-soluble flake.
Use it as a foliar biostimulant and micronutrient chelate where quick plant response matters, or as the fulvate base of a soluble feed. It is clean to handle and dissolves almost completely.
Key Benefits
50% fulvic acid
The short-chain active fraction that enters leaf and root tissue within hours.
50% humic acid
Adds soil conditioning and nutrient chelation alongside the fast fulvic action.
95% water soluble
Dissolves almost completely — only a small residue for most uses.
Fast uptake
Fulvic acid moves quickly through cuticle, so deficiency correction and stress recovery show sooner.
Chelates micronutrients
Binds Fe, Zn, Mn and Cu tightly, keeping them available to the plant.
COA on every batch
Each lot ships with a Certificate of Analysis stating tested fulvic, humic, solubility and pH.
Technical Specification
| Parameter | Specification | Test standard |
|---|---|---|
| Appearance | Yellow-brown flakes | Visual inspection |
| Humic acid (dry basis) | ≥ 50% | HG/T 3278-2011 |
| Fulvic acid (dry basis) | ≥ 50% | HG/T 5334-2018 |
| Water solubility (dry basis) | ≥ 95% | HG/T 3278-2018 |
| pH (1:100) | 9.0 – 10.0 | GB/T 33804-2017 |
Specification values are guaranteed minimums on a dry basis, taken from the batch Certificate of Analysis and tested against the stated Chinese industry standards. Every shipment travels with its own COA stating the tested values.
Need the full Certificate of Analysis, MSDS, or TDS for your formulation or tender file?
Request COA / MSDS / TDSForm & Solubility
Form: yellow-brown flakes, low-dust and free-flowing. The balanced Type I grade.
In water: wets out and disperses almost completely within seconds under light agitation. Add onto moving water to avoid a surface crust.
Handling: low dust, standard PPE recommended during bulk handling.
How the sodium fulvate types compare
| Grade | Form | Humic acid | Fulvic acid | Water solubility | Best for |
|---|---|---|---|---|---|
| Sodium Fulvate Flakes I (Type I) (this product) | Flakes | ≥ 50% | ≥ 50% | ≥ 95% | Balanced foliar & chelate |
| Sodium Fulvate Flakes II (Type II) | Flakes | ≥ 55% | ≥ 25% | 100% | Soil-first, fully soluble |
Type I is balanced (50/50); Type II is soil-first (55% humic, 25% fulvic) and fully soluble. Both are alkaline (pH 9–10).
Applications & Dosage
Fast-uptake foliar biostimulant and micronutrient chelate for crops and greenhouse programmes.
| Application | How to use | Rate |
|---|---|---|
| Foliar spray | Dilute 1:1000–1:1500 and spray in the cool part of the day for fast uptake. | 0.2–0.5 kg/mu |
| Drip / fertigation | Pre-dissolve and meter into the line; chelates nutrients in the feed. | 0.5–1.0 kg/mu |
| Micronutrient chelate | Use as the fulvate base of a chelated trace-element formula. | 5–10% of formula |
| Seed / root dip | Dilute 1:500–1:800 and dip at planting to reduce transplant shock. | 1:500 – 1:800 |
Packaging & Storage
| Pack size | Description |
|---|---|
| 25 kg | Woven bag with inner PE liner |
| 1000–1100 kg | Jumbo bag with discharge spout |
Storage: Store in a cool, dry, well-ventilated place. The flakes are stable for 2 years; reseal opened bags to keep moisture low.
Custom packaging, private-label printing and OEM specifications are available on request. Packaging photos are available in the product gallery.
Successful Cases
Tomato greenhouse, Shandong
Sprayed at 1:1000; firmer fruit and lower blossom-end rot on calcareous soil.
Explore applications → Field referenceWheat cooperative, Henan
More than 10% yield increase and stronger tillering versus the untreated block.
Explore applications → Field referenceCitrus orchard, Spain
Steadier leaf nutrient levels and less heat stress noted.
Explore applications →Full case studies with crop data are published in our application sectors.
Frequently Asked Questions
Type I or Type II?
Type I is balanced — 50% fulvic and 50% humic, the all-round foliar and chelate grade. Type II carries more humic and less fulvic (25%) for a stronger soil/conditioning emphasis.
Is it soluble?
About 95% on a dry basis — almost complete, a small residue only. Pre-dissolve and filter for a fully clear solution.
How fast does it work?
Fulvic acid enters leaf and root tissue within hours, so foliar response and stress recovery show sooner than with humate salts.
Can it chelate micronutrients?
Yes — it binds Fe, Zn, Mn and Cu tightly, keeping them available; ideal as the base of a chelated formula.
Do you provide a COA per batch?
Yes — tested fulvic acid, humic acid, solubility and pH against Chinese industry standards.
What is the minimum order and lead time?
Stock item. MOQ one pallet; 7–15 days ex-works. Private-label printing available.
Need a quotation or a sample?
Tell us your application, target market and packaging — we will come back with specification, price and lead time.
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