Humic Acid for Agriculture and Fertilizer Formulations
Humic Acid Humic Acid is a soil-focused organic raw material used in organic-mineral fertilizer, soil conditioner, compost activation, granular fertilizer, and crop nutrition support programs.
For agricultural buyers, humic acid should be positioned as a soil and fertilizer formulation material rather than a universal crop-yield promise. It is mainly selected for organic matter contribution, cation exchange support, soil aggregation concepts, nutrient holding behavior, and compatibility with granular or bulk-blend fertilizer systems.
Buyer Positioning
Written for importers, distributors, fertilizer formulators, and agricultural input brands comparing practical specifications.
SEO / GEO Focus
Answer-first definitions, specification tables, application notes, grade selection, visible FAQ, and natural internal links.
Safe Claim Style
Performance depends on grade, formula, crop, soil, water quality, dosage, and local registration. Validate before commercial use.
Answer-First Product Overview
For agricultural buyers, humic acid should be positioned as a soil and fertilizer formulation material rather than a universal crop-yield promise. It is mainly selected for organic matter contribution, cation exchange support, soil aggregation concepts, nutrient holding behavior, and compatibility with granular or bulk-blend fertilizer systems.
Buyer Note
Humic acid grades vary widely by raw material, extraction method, solubility, humic acid assay, ash, moisture, and particle size. If the application needs high water solubility for drip or foliar use, potassium humate or fulvic acid may be a better first option.
Main Specification
Specifications should be confirmed with the latest TDS, COA, SDS, sample result, and commercial contract. The values below are buyer-screening ranges for product-page qualification.
| Item | Typical value | Buyer note |
|---|---|---|
| Name | Humic acid | Confirm source and extraction route before order |
| Product code | GAC-HA | Use for sample and quotation reference |
| Appearance | Black to dark brown powder, granule, or flake | Choose by fertilizer process |
| Humic acid | 50-70% | Commercial benchmark range; confirm by COA |
| Organic matter | 60-85% | Important for soil-conditioner positioning |
| Moisture | 15% max | Relevant for storage and flowability |
| pH | 8-10 or by grade | Check formulation compatibility |
| Water solubility | Partly soluble to low soluble by grade | Use potassium humate or fulvic acid for high-solubility programs |
| Particle size | Powder, granule, or buyer-defined | Confirm dust, blending, and granulation needs |
Agriculture and Fertilizer Applications
Application should be selected by crop, soil test, water quality, formulation route, compatibility, dosage, and destination-market rules rather than by product name alone.
Soil Conditioner
Used in soil-amendment and organic-mineral fertilizer concepts where organic matter and humic substances are desired.
Granular Fertilizer
Works as a humic raw material for NPK, compound fertilizer, and soil-improvement granule programs.
Compost and Organic Fertilizer
Can be evaluated in compost, manure, and organic fertilizer blends.
Bulk Blending
Powder or granule forms can be selected for dry blending with compatible fertilizer materials.
Root-Zone Programs
Supports root-zone fertilizer concepts, subject to soil test and agronomic validation.
Private Label Supply
Useful for distributors requiring COA-driven humic acid grades and export documents.
Grade Selection Guide
Select the grade by assay, solubility, pH, application method, handling, regulatory fit, and the buyer’s required documentation.
- Humic acid assay
- Organic matter
- Solubility need
- Particle size
- Moisture and caking
- Destination-market label rules
Formulation and Industrial Uses
Some grades can be evaluated beyond field fertilizer programs. Treat all process behavior as grade-specific and test-specific.
| Use | Common role | Buyer check |
|---|---|---|
| Fertilizer granulation | Organic carrier and powder component | Check binding, moisture, and granule strength |
| Soil product blending | Bulk humic raw material | Check homogeneity and dust level |
| Compost blends | Organic matter and humic substance input | Confirm local input rules |
Packaging, Documents, and Related Products
Common export supply can include 25 kg bags with liner, jumbo bags, pallets, moisture protection, sample lots, and buyer-defined packaging. Request TDS, COA, SDS, packing details, sample information, and destination-market label support before order.
FAQ
Is humic acid fully water soluble?
Not always. Many humic acid grades are partly soluble or mainly used for soil and granular fertilizer systems. For high water solubility, compare potassium humate and fulvic acid.
What is the most important specification for humic acid?
Humic acid content, organic matter, moisture, pH, solubility, particle size, and raw-material consistency are the key buyer checks.
Can humic acid be used in foliar fertilizer?
Only selected soluble or finely processed grades should be tested for foliar systems. Compatibility and filtration testing are required.