China Lignin · Humic–Lignin Technology Platform
Iron Lignohumate
Organic Iron and Humic–Lignin Technology for Crop Nutrition
Iron Lignohumate is a functional organic iron material developed and manufactured within China Lignin’s humic–lignin technology platform. It combines iron with humic substances and lignin-derived organic matter for use in crop nutrition, organic-mineral fertilizers, soil conditioners and specialty agricultural formulations.
Humic–Lignin Technology Platform
Iron availability in agricultural systems is influenced by soil pH, bicarbonate, irrigation water quality, rhizosphere conditions and interactions with other nutrients. GAC-FeLH 4 is designed as an organic iron input in which iron is associated with a matrix of humic substances and lignin-derived organics.
Integrated Organic Matrix
Combines iron, humic substances, lignin-derived organic matter and total organic matter in one formulation material.
Formulation Flexibility
Suitable for evaluation in powders, granules, compound fertilizers, soil conditioners and trace-element blends.
Manufacturing Control
Standardized around defined iron, moisture, particle-size, dispersibility and bulk-density parameters.
Product Characteristics
- Organic iron source supported by humic and lignin-derived components.
- High total organic matter for organic-mineral formulation development.
- Controlled fine-powder particle size for blending and granulation.
- Good water dispersibility for process and application flexibility.
- Compatible with technical customization and batch quality documentation.
Technical Properties
Product standard: GAC-FeLH 4 · Form: brown to dark-brown free-flowing powder
| Parameter | Standard Specification |
|---|---|
| Total iron (Fe) | ≥ 4.0% |
| Humic substances | ≥ 35% |
| Lignin-derived organic matter | ≥ 20% |
| Total organic matter | ≥ 55% |
| Moisture | ≤ 10% |
| pH (1% solution) | 6.0–8.5 |
| Water solubility / dispersibility | ≥ 80% |
| Particle size | ≥ 95% through 80 mesh |
| Bulk density | 0.45–0.75 g/cm³ |
| Insoluble matter | ≤ 20% |
Specifications represent the GAC-FeLH 4 standard grade. Contract specifications and batch results are governed by the approved product specification, TDS and batch Certificate of Analysis.
Agricultural Applications
Organic-Mineral Fertilizers
Organic iron and humic–lignin input for powder or granular fertilizer development.
Specialty Crop Nutrition
For formulation programs where iron supply and organic components are evaluated together.
Soil Conditioners
For soil-oriented formulations requiring humic substances, lignin-derived organics and iron.
Compound Fertilizers
Fine-powder component for blending, granulation and trace-element enrichment.
Trace-Element Blends
Can be assessed alongside other micronutrient and organic fertilizer materials.
Formulation Development
| Formulation Type | Suggested Laboratory / Pilot Starting Range |
|---|---|
| Organic-mineral fertilizer | 2–8% |
| Soil conditioner | 3–10% |
| Compound fertilizer | 1–5% |
| Granule coating or functional layer | 0.5–3% |
These ranges are formulation-development starting points, not universal field application rates. Final use level should be established through compatibility testing, process trials and crop-specific agronomic validation.
Technical Considerations
Iron Lignohumate is not automatically equivalent to Fe-EDTA, Fe-DTPA or Fe-EDDHA. Material selection should reflect soil or substrate pH, bicarbonate level, crop sensitivity, application method and formulation compatibility.
| Selection Factor | Technical Review |
|---|---|
| Soil / substrate conditions | Review pH, carbonate and bicarbonate conditions. |
| Application route | Confirm suitability for soil, fertigation, blending, granulation or coating process. |
| Compatibility | Test with phosphates, calcium sources, micronutrients, binders and process water. |
| Performance target | Define whether the priority is iron supply, organic-matter contribution, soil interaction or combined functionality. |
Product Development Options
- Target iron content and organic-matter profile.
- Humic-substance and lignin-derived organic specifications.
- Particle-size distribution and water dispersibility.
- Powder, granulation-support or coating applications.
- Private label, export packaging and customer specification alignment.
Quality Control
Production and release controls can include raw-material identity, total iron, humic substances, total organic matter, moisture, pH, water dispersibility, insoluble matter, particle size and bulk density. Batch traceability and retained quality records support consistent supply.
Technical Documentation
Product Documents
TDS, product specification, SDS, packaging specification and application guidance.
Batch Documents
Certificate of Analysis, batch identification and traceability information.
Project Support
Samples, compatibility discussions, pilot-trial support and export documentation.
Packaging and Storage
Standard Packaging
- 25 kg multi-wall kraft paper bag with inner PE liner.
- 25 kg PP woven bag with inner PE liner.
- 500 kg or 1,000 kg FIBC for qualified bulk programs.
- Standard pallet: 40 × 25 kg bags, 1,000 kg net per pallet.
- Stretch film and moisture-protection cover for export shipment.
- Export-compliant treated wood pallet or plastic pallet.
Storage
- Store sealed in a cool, dry and well-ventilated area.
- Protect from moisture, direct sunlight and incompatible materials.
- Reseal opened packaging promptly and prevent dust contamination.
- Standard shelf life: 24 months in unopened original packaging under recommended storage conditions.
Safety and Handling
Use suitable gloves and eye protection, minimize airborne dust and provide appropriate ventilation during transfer and blending. Consult the current Safety Data Sheet before handling, processing or transportation.
Lignohumate Product Platform
Develop with China Lignin
Share the intended crop, formulation type, application route, soil or water conditions and target technical parameters. Our team can review grade selection, compatibility, trial design, documentation and packaging requirements for your project.