What is Humic Acid Powder?
Humic Acid Powder is a naturally derived organic soil amendment extracted from leonardite, a naturally oxidised form of lignite (a type of low-grade coal), or from other humified organic matter sources. It is a complex mixture of organic macromolecules formed through the long-term decomposition of plant and microbial material, valued in agriculture for its ability to improve soil structure, enhance nutrient availability, and stimulate beneficial soil microbial activity.
Polychem Industries supplies Humic Acid Powder to fertiliser companies, biostimulant formulators, and agricultural input distributors across India and internationally. As interest in soil health, sustainable agriculture, and nutrient use efficiency continues to grow, Humic Acid has become an increasingly important component of modern crop nutrition and soil management programmes.
Available Grades
| Grade | Form | Purity | Standard | Applications |
|---|---|---|---|---|
| Agricultural Grade | Dark brown to black fine powder | Humic acid content 50–85% (grade dependent) | Agricultural / Soil Conditioner | Soil conditioning, foliar application, fertigation, biostimulants |
Applications & Uses
Soil Conditioning & Structure Improvement
One of the most valued applications. Humic Acid improves soil structure by promoting aggregate formation, which enhances water retention, aeration, and root penetration, particularly beneficial in degraded or compacted soils requiring structural improvement.
Nutrient Availability Enhancement
Used to improve the availability and uptake efficiency of applied fertiliser nutrients, particularly micronutrients and phosphorus, through chelation and other chemical interactions that can reduce nutrient lock-up in soil.
Foliar & Fertigation Applications
Used in foliar spray and fertigation formulations, often combined with other nutrients, to enhance overall plant nutrient uptake efficiency and support general plant vigour and stress tolerance.
Soil Microbial Activity Stimulation
Used to stimulate beneficial soil microbial populations, supporting the broader soil biological activity that contributes to nutrient cycling, organic matter decomposition, and overall soil health and fertility.
Water Retention Improvement
Used to improve soil water-holding capacity, particularly valuable in sandy or low-organic-matter soils where water retention is naturally limited, helping improve crop resilience during periods of water stress.
Root Development & Plant Establishment
Used to support enhanced root development and improved plant establishment, particularly valuable in transplanting operations, nursery production, and the early growth stages of field and horticultural crops.
Technical Specifications
Humic Acid Powder — Key Properties
Why Source Humic Acid Powder from Polychem Industries?
- Agricultural Grade with consistent humic acid content
- Certificate of Analysis available on request
- Improves soil structure, water retention and nutrient availability
- Reliable bulk supply for fertiliser and biostimulant manufacturers
- Competitive pricing with consistent year-round availability
- Export documentation experience for international shipments
