Bio Fulvic Acid Chelate Calcium
Fast Calcium, No Fixation — The Fulvic-Chelated Calcium Grade
Product code JFHA-BFA-Ca
Fulvic acid (dry basis) ≥ 45.0%
Calcium (Ca) ≥ 8.0%
Code JFHA-BFA-Ca
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 Calcium combines high-purity fulvic acid with chelated calcium so the calcium is taken up directly by the crop instead of being fixed in the soil. Guaranteed 45% fulvic acid and 8% calcium (Ca), with 0% water-insoluble matter — it dissolves completely and will not block drip lines.
Calcium is the element crops need most but absorb least efficiently: it is immobile in the plant and easily fixed by soil phosphate and bicarbonate. Fulvic acid acts as the chelating and transport agent, carrying calcium into the root and leaf where ordinary calcium fertilisers fail. That is why this grade is the standard correction for blossom-end rot in tomato, bitter pit in apple, tip burn in lettuce and cabbage, and cracking in citrus and strawberry.
Free of harmful impurities and heavy metals, it is safe for crops, soil and the environment and suitable for organic-input programmes. Use it in fertigation, foliar spray, or as a seed treatment across fruit, vegetable, grain and cash crops.
Key Benefits
Chelated calcium, directly absorbed
Fulvic acid carries calcium past soil fixation into root and leaf — fixes the deficiency ordinary calcium can’t.
45% fulvic acid
High-active short-chain carbon for rapid uptake, plus the chelation and buffering effect.
0% water-insoluble
Fully soluble, no pipeline blockage, suitable for every irrigation system.
Targets calcium disorders
The grade of choice for blossom-end rot, bitter pit, tip burn and fruit cracking.
Safe and clean
No harmful impurities or heavy metals; suitable for organic-input programmes.
COA on every batch
Tested fulvic acid, Ca, moisture and pH against HG/T and NY/T methods.
Technical Specification
| Parameter | Specification | Test standard |
|---|---|---|
| Appearance | Brown powder | Visual inspection |
| Fulvic acid | ≥ 45.0% | HG/T 5334-2018 |
| Calcium (Ca) | ≥ 8.0% | NY/T 1117-2010 |
| Water-insoluble matter | 0% | NY/T 1973-2021 |
| Moisture | ≤ 3.0% | GB/T 20886.2-2021 |
| pH (1:100) | 5.0 – 6.0 | NY/T 1973-2021 |
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, free-flowing, no caking.
In water: dissolves completely with no residue — suitable for drip, sprinkler and foliar systems alike. Light agitation gives a clear solution.
Best practice: spray in the morning or evening, avoid high noon; if it rains within 4 hours, rinse and re-spray. Do not mix with strong acid/alkali products — run a small jar test first.
Storage: cool, dry, ventilated; seal tightly after use. 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 (this product) | Powder | ≥ 45% | Ca ≥ 8% | — | Correct Ca deficiency |
| Bio Fulvic Acid Chelate Iron | Powder | ≥ 15% | Fe ≥ 14% | — | Correct Fe chlorosis |
| Bio Fulvic Acid Chelate Zinc | 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 | 800–1200× dilution, 2–3 times per growth period (seedling, flowering, fruit expansion). | 7.5–15 kg/ha |
| Foliar spray | 1000–1500× dilution, 2–3 times; focus on young fruit and expansion stage. | 3–5 kg/ha |
| Seed dressing / soaking | 1500–2000× dilution; soak 6–12 h or dress to wet seeds. | as per crop |
| Soil application | Before sowing or transplanting, mixed 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
Strawberry greenhouse, Shandong
Drip at 800× every 7 days ×3. Lateral roots +30%, blossom-end rot controlled, fruit setting +15%, sugar +1–2°.
Explore applications →
Field reference
Apple orchard, Shaanxi
Foliar 1200× at young fruit and expansion. Colouring area +20%, cracking −80%, commodity rate >95%.
Explore applications →
Field reference
Citrus plantation, Guangxi
Drip 1000× + foliar 1200× at expansion. Average fruit +10%, canker −70%, soluble solids +1.5°.
Explore applications →
Full case studies with crop data are published in our application sectors.
Frequently Asked Questions
Why chelated calcium instead of ordinary calcium nitrate?
Ordinary calcium is fixed by soil phosphate and bicarbonate and is immobile in the plant, so little reaches the fruit. Fulvic acid chelates the calcium and carries it into root and leaf, fixing deficiency that straight calcium cannot.
Which disorders does it correct?
Blossom-end rot (tomato), bitter pit (apple), tip burn (lettuce, cabbage), fruit cracking (citrus, strawberry) and general calcium shortage in fruit, vegetable and grain crops.
Can it be used in organic farming?
It is produced from quality raw materials, free of harmful chemicals and heavy metals, and meets relevant organic-input standards. Confirm your certification body at enquiry.
Is it compatible with other fertilizers?
Mixes with most neutral/acidic fertilizers and pesticides. Do not mix with strong acid/alkali; run a small jar test first.
What is the shelf life?
24 months from production date under proper storage. Seal tightly after use to prevent caking.
Do you provide a COA per batch?
Yes — fulvic acid, Ca, 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 Zinc – 15% Fulvic Acid, 10% Zn
Bio Fulvic Acid Chelate Iron – 15% Fulvic Acid, 14% Fe
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.
