JINGFENG · Organic Input
Insoluble Humic Acid Granules

JINGFENGR®'s Insoluble Humic Acid Granules are made from high-purity natural weathered coal / lignite via disc granulation, curing, and precision…

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Insoluble Humic Acid Granules

Product Overview

JINGFENGR®’sInsoluble Humic Acid Granulesare made from high-purity naturalweathered coal/ligniteviadisc granulation, curing, and precision sieving.

Featuring a stable 2-5mm particle size and excellent flowability, this product addresses key pain points of traditional humic acid powder (dust pollution, difficult mechanized application, high transportation loss).

Tailored for large-scale agricultural production, it delivers long-lasting soil improvement while retaining humic acid’s core soil amendment properties, with enhanced convenience and compatibility.

OEM service:

Key Benefits

  • Long-Lasting Soil Amendment: Slowly releases humic acid via microbial degradation (3-6 months sustained effect), boosting soil CEC (≥200 meq/100g), promoting aggregate structure, and effectively ameliorating saline-alkaline/compacted soils.
  • Mechanization-Friendly: Uniform particle size enables seamless use with fertilizer spreaders/seeding machines, slashing labor costs by 60% for large-scale fields, orchards, and plantations.
  • Eco & Low Loss: Dust-free during application (protects operator health/equipment), resistant to moisture caking, and transportationloss ≤1%(vs. 5-8% for powder), reducing logistics/packaging costs.

Technical Details

*1NY525-2012 (The standards of the Ministry of Agriculture of China for organic matter detection)
*2ISO5073 Analysis method
*3ISO19822 / HPTA / AAPFCO / IHSS Analysis method
*4HJ615 Analysis method

SpecificationJFHA-HA-1 Granule
Organic Matter (Dry Basis)*180.0% min
Total Humic Acid (Dry Basis)*2/*350.0% min
Free Humic Acid (Dry Basis)*240.0% min
Organic Carbon (Dry Basis)*420.0% min
SolubilityNo (soil application only)
Cation Exchange Capacity (CEC)≥200 meq/100g
Particle Size Range2-5mm (≥ 90%)
Moisture Content25.0% max (Not recommended for blending with other fertilizers)
pH (1% Aqueous Suspension)5-7
Heavy Metal Limits (Dry Basis)Pb ≤10 mg/kg; Cd ≤3 mg/kg; As ≤5 mg/kg

Recommended Applications

Scenario

Crops

Scenario

Vegetables

Scenario

Fruit Trees

Application ScenarioTarget Crops/SoilsRecommended DosageApplication Method
Large-Scale Field CropsCorn, wheat, cotton, rice800-1200 kg/haMechanically broadcast as base fertilizer, then plow into 20-30 cm soil
Orchards & Tea GardensApple, citrus, grape, tea plants0.5-1 kg per treeFurrow/hole application (30 cm away from roots) with organic fertilizer blending
Saline-Alkaline & Compacted Soil RemediationSaline-alkaline soil (pH 8.5+), compacted/degraded soil1000-1500 kg/haUniform broadcasting, incorporate into soil; apply for 2-3 consecutive seasons

Packaging & Storage

Scenario

1kg bag

Scenario

5-25kg bag​

Scenario

Jumbo bag

We offer a range of standard packaging solutions: 1kg, 5kg, 10kg, 20kg bags, 25kg bags, jumbo bags.Custom packaging services are also available. Our team will provide tailored recommendations based on your specific requirements to ensure proper storage and transportation, maintaining product integrity throughout the process.

Storage Instructions

  • Store in a dry, ventilated, and rainproof warehouse.
  • Protect from heavy pressure during transportation to avoid particle crushing.
  • This product is water-insoluble;do not use for fertigation or drip irrigation(only for base application).
Insoluble Humic Acid Granules
Insoluble Humic Acid Granules

QUOTATION OR TECHNICAL SUPPORT

Certifications & Compliance

📑JINGFENG Humic acid CERES Organic Certificate(Confirmation for Materials Used in Organic Agriculture)
📑REACH(Green chemical innovation, permitted in the EU)
📑ISO Certificate9001 / ISO14001 / ISO22000
📑Heavy Metal Test Reportfrom ISO certified lab

CONTACT US TO GET OUR LATEST DOCS.

Safety Data Sheet / Technical Data Sheet

📑 MSDS (Insoluble Humic Acid Granule Material Safety Data Sheet)
📑 TDS (Insoluble Humic Acid Granule Technical Data Sheet)

CONTACT US TO GET OUR LATEST DOCS.

Successful Cases

Saline-Alkaline Soil Remediation for Rice Cultivation (Inner Mongolia, China)Case

Saline-Alkaline Soil Remediation for Rice Cultivation (Inner Mongolia, China)

The demonstration site in Horqin Left Rear Banner suffered from severe soil salinization (pH 8.5-9.0), low organic matter content (0.25mm) increased by 42%. Sustainable effect: The granular product degraded slowly, maintaining soil improvement effects for 2 consecutive planting seasons with no salinization rebound.

Apple Orchard Soil Improvement (Shandong, China)Case

Apple Orchard Soil Improvement (Shandong, China)

A 10-year-old apple orchard faced soil compaction, nutrient imbalance, and declining fruit quality (low sugar content, uneven coloring) due to long-term chemical fertilizer use. Application Details: Applied 0.8 kg per tree via furrow application (30 cm away from roots) in autumn. Mixed with organic fertilizer at a 10% ratio, then covered with soil after application. Results: Fruit quality enhanced: Soluble solid content increased by 18%, fruit coloring uniformity reached over 90%, and storage resistance improved by 30%. Soil structure optimized: Soil bulk density decreased from 1.45 g/cm³ to 1.12 g/cm³, and root system biomass increased by 25% in the 0-40 cm soil layer. Fertilizer efficiency improved: Reduced chemical fertilizer usage by 20% while maintaining yield, lowering production costs by $120 per acre.

Large-Scale Corn Cultivation (Heilongjiang, China)Case

Large-Scale Corn Cultivation (Heilongjiang, China)

500-acre corn field with sandy loam soil, poor water and nutrient retention, and high fertilizer leaching loss. Mechanical planting required efficient, dust-free soil amendments. Application Details: Applied 1200 kg/ha via mechanical broadcasting before sowing, integrated with compound fertilizer application. No additional manual operation needed. Results: Yield increased by 15.8% compared to the powder humic acid group, reaching 8.2 tons/ha. Labor and logistics cost saved: Mechanization compatibility reduced application time by 60%, and transportation loss was only 0.8% (vs. 6.5% for powder products). Drought resistance enhanced: The field maintained normal growth during a 20-day drought period, with leaf wilting rate 50% lower than the control group.

FAQ

1. What is the difference between water-insoluble and water-soluble humic acid granules?

Water-insoluble granules release humic acid slowly through microbial degradation, providing long-term (3-6 months) soil improvement effects. They are ideal for base application and mechanized use. Water-soluble types act quickly but have a short residual period (1-2 months), suitable for fertigation or foliar application. Our water-insoluble granules also eliminate dust pollution and reduce transportation loss.

2. Why choose water-insoluble humic acid if it doesn't dissolve in water?

Its water-insoluble nature ensures slow, sustained release in soil, avoiding nutrient leaching. It forms stable bonds with soil particles to promote aggregate structure formation, which is more effective for long-term soil remediation (e.g., saline-alkaline or compacted soils). The granular form also enhances mechanization compatibility and storage stability.

3. Which soil types are most suitable for this product?

It works best for saline-alkaline soil (pH 7.5-9.5), compacted soil, sandy soil with poor water retention, and degraded soil with low organic matter content (<2%). It is also suitable for soil with long-term chemical fertilizer use to restore soil health.

4. Can it be mixed with other fertilizers or pesticides?

Not recommended for blending with other fertilizers due to higher moisture (≤25%), which may cause caking. Compatible with organic fertilizers for standalone base application; avoid strong acidic fertilizers (pH <3) or copper-based pesticides.

5. How to adjust the application rate for different crops?

For field crops (corn, wheat): 800-1200 kg/ha; for fruit trees: 0.5-1 kg per tree; for vegetables: 100-150 kg/mu; for saline-alkaline soil remediation: 1000-1500 kg/ha. Adjust based on soil degradation degree and crop nutrient requirements—increase dosage by 20% for severely degraded soil.

6. Is this product suitable for organic farming?

Yes, it is derived from natural leonardite and certified compliant with USDA Organic, EU 2019/1009, and OMRI standards. It contains no synthetic additives, making it ideal for organic crop production.

7. How long does it take to see visible results?

Soil structure improvement (e.g., reduced compaction) can be observed after 1 planting season. Significant yield increases and quality improvement (e.g., higher sugar content) typically appear after 2-3 consecutive applications. For saline-alkaline soil, pH reduction and yield improvement can be achieved in the first year.

8. What are the storage requirements?

Store in a dry, ventilated warehouse with relative humidity <60% and temperature <30°C. Avoid rain, moisture, and heavy pressure to prevent caking or particle crushing. The shelf life is 24 months in original packaging.

9. Will over-application cause negative effects?

Excessive application (more than twice the recommended dosage) may reduce soil bulk density excessively, affecting water retention. Follow the recommended rate for optimal results—our product has no heavy metal residues (Pb ≤50 mg/kg, Cd ≤10 mg/kg) and is safe for soil and crops.

10. Does it cause root burn?

No, high-purity natural humic acid has excellent biocompatibility. When applied as directed (30 cm away from roots for hole/furrow application), it stimulates root growth rather than causing burn. Avoid direct contact with young roots for newly transplanted seedlings.

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