Bio Fulvic Acid Chelate Zinc
Tightens Up Zinc Deficiency — The Fulvic-Chelated Zinc Grade
Product code JFHA-BFA-Zn
Zinc (Zn) ≥ 10.0%
Fulvic acid (dry basis) ≥ 15.0%
Code JFHA-BFA-Zn
Every lot ships with a Certificate of Analysis stating actual tested values.
Product Overview
Bio Fulvic Acid is JINGFENG’s biotech-fermented fulvic acid — produced by microbial fermentation of plant-derived feedstock rather than mined from leonardite. It is a short-chain humic substance rich in fulvic acid, free amino acids, enzymes, sugars and trace nutrients. Fully water soluble and hormone-free, it is used worldwide as a fertilizer raw material and plant biostimulant — chelating nutrients, buffering soil pH, and improving nutrient uptake in foliar, fertigation and blending programmes.
Bio Fulvic Acid Chelate Zinc corrects zinc deficiency with 10% zinc (Zn) carried by 15% fulvic acid, plus 30% organic matter and 1% medium elements (Ca+Mg) for a complete micronutrient package. Water-insoluble matter is just 0.05% — effectively zero blockage in any irrigation system.
Zinc deficiency shows as small, narrow, mottled leaves, poor flower-bud formation and low fruit set; corn (striped leaves), rice, citrus, tomato, soybean and peanut are the classic sufferers. Fulvic acid chelates the zinc and carries it into the plant, correcting the disorder that straight zinc sulphate cannot on high-pH soils.
Low moisture (3%), uniform powder, no caking; compliant with agricultural standards and safe for crops, soil and environment. Use it in drip, foliar and seed treatments.
Key Benefits
10% chelated zinc
High Zn load carried by fulvic acid for fast correction of deficiency.
15% fulvic acid + 30% organic matter
Chelation, transport and a broad organic nutrient supply.
0.05% water-insoluble
Practically zero blockage; perfect for drip, sprinkler and foliar.
Corrects zinc disorders
The grade for striped corn, mottled citrus, small tomato leaves, poor pod set.
Low moisture, no caking
Uniform powder, easy to store and apply.
COA on every batch
Tested Zn, fulvic acid, moisture and pH against HG/T and NY/T methods.
Technical Specification
| Parameter | Specification | Test standard |
|---|---|---|
| Zinc (Zn) | ≥ 10.0% | NY/T 1974-2010 |
| Fulvic acid | ≥ 15.0% | HG/T 3276-2019 |
| Organic matter | ≥ 30.0% | NY/T 525-2021 |
| Medium elements (Ca+Mg) | ≥ 1.0% | NY/T 1117-2010 |
| Water-insoluble matter | ≤ 1.0% | NY/T 1973-2021 |
| Moisture | ≤ 3.0% | NY/T 525-2021 |
| pH (1:100) | 4.0 – 6.0 | NY/T 525-2021 |
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?
Form & Solubility
Form: uniform brown powder, low moisture (3%), free-flowing, no caking.
In water: dissolves completely with no residue; suitable for drip, sprinkler and foliar.
Best practice: foliar at 1500–2000× in morning/evening; drip at 1000–1500×. Do not mix with strong alkaline products; jar-test before blending.
Storage: cool, dry, ventilated; seal tightly. Shelf life 24 months.
How Bio Fulvic Acid grades compare
| Grade | Form | Fulvic acid | Key element | K₂O | Best for |
|---|---|---|---|---|---|
| Bio Fulvic Acid Powder 50% | Powder | ≥ 50% | — | ≥ 12% | Standard blending & foliar base |
| Bio Fulvic Acid Powder 70% | Powder | ≥ 70% | — | ≥ 12% | Higher-active powder |
| Bio Fulvic Acid Powder 90% | Powder | ≥ 90% | — | — | Concentrated / high-fulvic label |
| Bio Fulvic Acid Chelate Calcium | Powder | ≥ 45% | Ca ≥ 8% | — | Correct Ca deficiency |
| Bio Fulvic Acid Chelate Iron | Powder | ≥ 15% | Fe ≥ 14% | — | Correct Fe chlorosis |
| Bio Fulvic Acid Chelate Zinc (this product) | Powder | ≥ 15% | Zn ≥ 10% | — | Correct Zn deficiency |
| Bio Fulvic Acid Chelate Manganese | Powder | ≥ 24.86% | Mn ≥ 13% | — | Correct Mn deficiency |
| Bio Fulvic Acid Chelate Magnesium | Powder | ≥ 21.54% | Mg ≥ 10% | ≥ 3.48% | Correct Mg deficiency |
| Bio Fulvic Acid Round Granule | Granule | ≥ 52.3% | — | ≥ 10.42% | Dust-free spread or dissolve |
All grades are fermented, 100% water soluble and stable in hard/saline water (anti-flocculation 32 meq/g).
Applications & Dosage
| Application | How to use | Rate |
|---|---|---|
| Drip / fertigation | 1000–1500× dilution, once every 7–10 days at seedling/tillering/flowering. | 7.5–12 kg/ha |
| Foliar spray | 1500–2000× dilution, every 10–14 days; focus on young-leaf stage. | 3–5 kg/ha |
| Seed soaking | 2500× dilution at sowing. | as per crop |
| Soil application | Before sowing/transplanting, with organic fertiliser. | 15–22.5 kg/ha |
Packaging & Storage
| Pack size | Description |
|---|---|
| 1 kg / 5 kg / 10 kg | Printed aluminium foil bag — retail and sample size |
| 20 kg / 25 kg | Woven or paper bag with inner PE liner |
| 1000–1100 kg | Jumbo bag with discharge spout |
Storage: Store in a cool, dry, well-ventilated warehouse away from direct sunlight, high temperature and humidity. Seal the package tightly after each use. Shelf life 24 months from production date.
Custom packaging, private-label printing and OEM specifications are available on request. Packaging photos are available in the product gallery.
Successful Cases
Apple orchard, Shaanxi
Foliar 1800× every 10 days ×3 at young leaf/bud differentiation. Leaf size +25%, bud formation +30%, fruit set +22%.
Explore applications →
Field reference
Corn grower, Henan
Seed soak 2500× + drip 1200× at seedling. Germination +14%, ears/plant +12%, yield +17%.
Explore applications →
Field reference
Tomato greenhouse, Hebei
Foliar 1600× + drip 1300× ×2. Chlorosis corrected in 1 week; flower drop −28%, fruit set +24%.
Explore applications →
Full case studies with crop data are published in our application sectors.
Frequently Asked Questions
How does fulvic-chelated zinc work?
Fulvic acid chelates the Zn and carries it into the plant, correcting deficiency that straight zinc sulphate cannot fix on high-pH soils. Striped corn and mottled citrus recover within days of spraying.
Which crops are most sensitive?
Corn (striped leaves), rice, citrus, tomato, soybean, peanut and other zinc-sensitive crops.
Can it be used during flowering?
Yes. At recommended dilution it strengthens flower organs and improves fruit set without affecting pollination.
Is it compatible with other inputs?
Mixes with most neutral/acidic fertilizers and pesticides; not with strong alkaline products. Jar-test first.
What is the shelf life?
24 months from production date under proper storage. Seal tightly after use.
Do you provide a COA per batch?
Yes — Zn, fulvic acid, moisture and pH tested to HG/T and NY/T methods.
Also Available in This Family
Bio Fulvic Acid Round Granule – 52.3% Fulvic Acid, Uniform Granule
Bio Fulvic Acid Chelate Magnesium – 21.54% Fulvic Acid, 10% Mg
Bio Fulvic Acid Chelate Manganese – 24.86% Fulvic Acid, 13% Mn
Bio Fulvic Acid Chelate Iron – 15% Fulvic Acid, 14% Fe
Bio Fulvic Acid Chelate Calcium – 45% Fulvic Acid, 8% Ca
Bio Fulvic Acid Powder 90% – 90% Fulvic Acid, Max Active Load
Bio Fulvic Acid Powder 70% – 70% Fulvic Acid, Higher Active Load
Bio Fulvic Acid Powder 50% – 50% Fulvic Acid, 100% Water SolubleNeed a quotation or a sample?
Tell us your application, target market and packaging — we will come back with specification, price and lead time.
