What is Humic Acid Powder?
Highassay’s Humic Acid Powder is a highly active organic substance extracted from natural lignite.Water-insoluble Humic Acid Powder enables long-lasting effects in the soil, continuously improving soil structure and enhancing the utilization rate of chemical fertilizers.The bulk Humic Acid Powder we supply is an ideal raw material to help you achieve high-quality agriculture and boost both yield and quality.
Features of Highassay Humic Acid Powder:High purity、General、Economy.
Specification of Humic Acid Powder
We provide Ultrafine Humic Acid Powder and Standard Humic Acid Powder.
- Specification of Humic Acid Powder(Ultrafine)
- Specification of Humic Acid Powder(Standard)
| Item | Specification |
| Solubility | Insoluble in water, soluble in alkaline solution |
| Humic Acid (dry basis) | 70%–80% |
| Moisture | Max. 25% |
| pH Value | 5.0–6.0 |
| Particle Size | Superfine powder, 325 mesh |
| Item | H100P | H104P | H106P |
| Humic Acid (dry basis) | 70% | 50% | 40% |
| pH | 5.0 – 6.0 | 5.0 – 6.0 | 5.0 – 6.0 |
| Water Solubility | Insoluble | Insoluble | Insoluble |
| Moisture | Max. 25% | Max. 25% | Max. 25% |
| Appearance | Black powder, 100 mesh | Black powder, 100 mesh | Black powder, 100 mesh |
Applications of Humic Acid Powder
As a versatile organic fertilizer, it plays a significant role in agriculture and forestry. For example:
Humic acid powder is used for soil improvement: it acts directly on the soil itself, making it looser and enhancing its water and nutrient retention capabilities.
Blending humic acid powder with chemical fertilizers allows for reduced application rates while simultaneously enhancing fertilizer utilization efficiency. Data indicates that incorporating humic acid into fertilizers enables crops to maintain stable yields—or even achieve increased yields—despite a 10% to 30% reduction in chemical fertilizer usage.
Humic acid powder used on fruits and vegetables delivers a dual boost to both yield and quality; for instance, it makes tomatoes mealy-textured and juicy and improves the sugar-to-acid ratio in apples, while also helping to increase wheat yields by approximately 25% even under conditions of water scarcity.
Ultrafine Humic Acid Powder vs. Standard Humic Acid Powder
| Properties | Ordinary Humic Acid Powder | Humic Acid Superfine Powder |
| Core Difference | Standard fineness for general use | Ultrahigh fineness, usually 325 mesh or above |
| Solubility / Dispersibility | Generally insoluble in water, can form suspension | Higher suspension rate, more uniform dispersion, suitable for suspension fertilizers |
| Reaction Speed | Relatively slow and gentle | Larger specific surface area, more sufficient contact with soil, faster reaction |
| Main Application Scenarios | Soil conditioner, fertilizer filler, used for basal fertilizer or conventional topdressing | Suitable for water-soluble fertilizers, drip irrigation, fertigation, and high-end fertilizer formulations with strict fineness requirements |
Ordering Information: Packaging, MOQ, Pricing & Lead Time
Humic Acid Powder Packaging
We offer standard 25kg kraft paper bag packaging and bulk packaging in ton bags; packaging specifications and labeling can be customized to meet customer requirements.
MOQ
- Standard MOQ: 1,000 kg (40 bags of 25 kg).
- Flexible MOQ: We accept a minimum of 500 kg (20 bags) for trial orders.
- Free samples are available; please contact customer service to request a sample.
Humic Acid Powder Pricing
We utilize a tiered pricing structure.
- 500 kg – 1,000 kg: Small-batch trial order price
- 1,000 kg – 5,000 kg: Standard unit price
- ≥1×20GP (22–25 MT): Discounted base price for full container loads
Lead Time
Small-batch orders: 5–10 days; 20GP full container orders: 12–20 days.
Storage & Shelf Life
Store in a cool, dry, and ventilated warehouse; keep away from moisture and heavy pressure. Shelf life: 3 years in unopened original packaging.
Highassay also offers Humic Acid Granules and Humic Acid Liquid; for details, please refer to the Humic Acid product collection page.

