Mineral Source Potassium Humate is a highly active, small-molecule organic potassium fertilizer extracted from natural minerals such as weathered coal and lignite. It has good water solubility, can be directly absorbed by crops, and features high activity, high water solubility, high chelation, high stress resistance, and batch-to-batch stability. Its applications focus on soil improvement, crop growth promotion, and stress enhancement; it belongs to the category of biostimulant soil conditioners.
Our factory can also supply high-quality Humic Acid, Sodium Humate, Fulvic Acid, Potassium Fulvate, and other fertilizer products. Feel free to inquire anytime; we will provide you with the best price and service.
Characteristics of Mineral Source Potassium Humate:
1. Natural raw materials, high activity: Mineral Source Potassium Humate originates from weathered coal/lignite formed over millions of years, containing humic acid (≥50%), various functional groups (carboxyl groups, phenolic hydroxyl groups, etc.), and potassium oxide (≥12%). Its small molecular weight (300–500 Da) allows for direct absorption by crops, and its biological activity is far higher than that of biochemical potassium humate.
2. Fully Water-Soluble and Anti-Flocculating: High-quality products dissolve rapidly at room temperature (no residue within 10 seconds), are resistant to hard water and acids/alkalis (pH 5.5–6.5), and do not flocculate when mixed with most fertilizers and pesticides, making them suitable for drip irrigation, foliar spraying, and fertigation.
3. Strong Chelating and Synergistic Effects: Mineral Source Potassium Humate can chelate nutrients such as calcium, magnesium, zinc, and phosphorus in the soil, reducing fixation and loss, and improving the utilization rate of nitrogen, phosphorus, potassium, and micronutrients (typically increasing by 10%–30%), thus reducing fertilizer usage.
4. Improves Soil Structure: Mineral Source Potassium Humate promotes soil aggregate formation, improves compaction, salinization, and acidification, enhances aeration and water retention (actually increasing aeration by approximately 40%), activates beneficial microorganisms, and increases organic matter.
5. Promotes root growth and seedling development, enhances stress resistance and improves quality: Mineral Source Potassium Humate stimulates root meristems, increasing capillary roots by 30%–50%, enhancing drought, cold, and disease resistance; it also promotes photosynthesis, color change, and fruit expansion, increasing sugar content and marketability.
6. Safe and stable: Legitimate products meet the standards of the Ministry of Agriculture and Rural Affairs (e.g., HG/T 5334-2018) for heavy metals (Cd, Pb, As, etc.) and microbial indicators. It contains no added hormones and degrades without residue.
Applications of Mineral Source Potassium Humate:
The core applications of Mineral Source Potassium Humate focus on soil improvement, crop growth promotion, and stress resistance enhancement. It is a biostimulant soil conditioner and cannot replace conventional fertilizers.
1. Soil improvement: Alleviates compaction, acidification, and salinization; promotes soil aggregate formation; improves water retention, fertilizer retention, and aeration; and activates soil microorganisms.
2. Promotes root growth and seedling development: Stimulates root meristems, increases the number and absorption capacity of fine roots, and alleviates stunted and weak seedlings after transplanting.
3. Enhances nutrient efficiency: Chelates micronutrients (such as calcium, zinc, and iron), solubilizes phosphorus, fixes nitrogen, and activates potassium, increasing fertilizer utilization by 20%–30%.
4. Enhances stress resistance: Improves crop resistance to drought (by regulating stomatal opening), cold, waterlogging, and salinity, and reduces damage from abiotic stresses.
5. Improves quality and yield: Application during flowering, young fruit enlargement, and coloring stages can improve fruit sugar content, gloss, and uniformity, enhancing the marketability of cash crops.
6. Repairs and buffers: Passivates heavy metals in the soil (cadmium, lead, etc.), alleviates fertilizer damage, pesticide damage, and continuous cropping problems, and helps restore the soil ecology of continuously cropped soils.
Important Note: Mineral Source Potassium Humate contains approximately 8%–12% potassium oxide and is essentially a “synergistic conditioner” rather than a nutrient fertilizer. It must be used in conjunction with nitrogen, phosphorus, potassium, and organic fertilizers. Suitable for field crops, fruits and vegetables, cash crops, and potted plants, but it does not have fungicidal/insecticide functions and is not a pesticide. For foliar spraying, dilute 500–800 times; for drip irrigation, typically use 200–500 grams per acre. Avoid high concentrations or application alone.
How to Choose Mineral Source Potassium Humate?
1. Pure Raw Materials: Mineral Source Potassium Humate must be derived from natural weathered coal or lignite (such as high-quality mines from Shanxi, Inner Mongolia, and Xinjiang), and not from biochemical raw materials (such as molasses or fermented straw). The packaging should clearly indicate “mineral source” and not include the words “biochemical humic acid.” Pure mineral-derived products are typically dark brown or blackish-brown, dry and loose, and have no molasses or ammonia odor.
2. Effective Ingredients Meet Standards: Dry-basis mineral-derived humic acid ≥50%, potassium oxide (K₂O) ≥12%, and labeled “dry-basis” rather than “wet-basis”; mineral-derived humic acid typically ≥60%, water-insoluble matter ≤1% (≤0.5% recommended for drip irrigation); falsely labeled low prices (e.g., <30 RMB/kg) are highly likely to be adulterated.
3. Complete Compliance and Certifications: Look for the Ministry of Agriculture and Rural Affairs fertilizer registration certificate (verifiable on the official website), the implementation standard is HG/T 5334-2018, and an attached third-party testing report from the past year (including compliance with 6 heavy metals).
4. Completely Water-Soluble and Residue-Free: Dissolve a small amount of Mineral Source Potassium Humate in water; it should dissolve completely within 10 seconds, the solution should be dark brown and transparent, with no precipitate or suspended matter; inferior products or those using biochemical smuggling often appear cloudy, have black residue, and are pure black or yellowish-brown.
5. Resistance to hard water and flocculation: High-quality products do not flocculate or clog drip irrigation heads when mixed with well water or tap water (medium to high hardness). Mineral Source Potassium Humate can be mixed with most neutral/weakly acidic fertilizers (such as potassium dihydrogen phosphate and urea) and used immediately. If it immediately becomes turbid and precipitates when it comes into contact with calcium and magnesium ions, it indicates poor processing or impurities.
