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Potassium Humate Granular Fertilizer

40% Potassium Humic Acid Granular Fertilizer

Main Specification

ParameterSpecification
AppearanceBlack shiny round granules/ Prills /Column
Total Humic Acid (dry basis)≥ 65 %
Humic Acid (water-soluble, dry basis)≥ 40 % (minimum guaranteed)
Fulvic Acid (dry basis)3 – 8 %
Potassium (K₂O, water-soluble)≥ 10 %
Organic Matter (dry basis)≥ 80 %
Moisture Content≤ 15 %
pH (1 % suspension)8.5 – 10.5
Water Solubility (humic part)40 – 50 % (slow & continuous release)
Granule Hardness (crushing strength)≥ 6 kg/granule
Bulk Density0.80 – 0.95 g/cm³
Heavy Metals (Pb / As / Cd / Hg)≤ 10 / ≤ 5 / ≤ 2 / ≤ 1 ppm
Total Plate Count≤ 10,000 CFU/g
E. coli / SalmonellaNegative

Benefits

  1. The product slowly releases 40%+ water-soluble potassium humate over 60–120 days, providing long-lasting humic stimulation and potassium nutrition.
  2. It significantly improves soil structure, increases aeration, and enhances water-holding capacity in sandy and degraded soils.
  3. It supplies high potassium (≥ 10% K₂O) in organic form that does not cause salinity or burn roots even at high rates.
  4. It strongly boosts cation exchange capacity (CEC), reducing nutrient leaching by 30–50%.
  5. It promotes vigorous root development and increases microbial population in the rhizosphere.
  6. It buffers soil pH and detoxifies aluminum and heavy metals in acidic soils.
  7. It enhances fertilizer use efficiency – reduces NPK requirement by 20–30%.
  8. It improves crop resistance to drought, salinity, and temperature extremes.
  9. It increases yield and quality of fruits, vegetables, field crops, and turf by 10–25%.

Usage

  1. Basal soil application (broadcast or band placement)
  2. Side dressing for row crops and vegetables
  3. Top dressing for orchards and fruit trees
  4. Pre-planting incorporation into soil
  5. Mechanical spreading with fertilizer spreaders
  6. Suitable for rice, sugarcane, corn, wheat, cotton, fruit trees, golf courses

Recommended Application Rate

  • Field crops: 200 – 600 kg/ha
  • Fruit trees & orchards: 1 – 3 kg/tree or 500 – 1000 kg/ha
  • Vegetables: 300 – 800 kg/ha
  • Turf & lawn: 200 – 400 kg/ha

Packaging

  1. 25 kg PP/PE woven bag with inner liner
  2. 50 kg PP woven bag
  3. 500 kg / 1000 kg jumbo bag (FIBC) with discharge spout
  4. 20 kg kraft paper bag (export grade)
  5. Private label & customized printing available

Key Advantages

  1. Minimum 40% water-soluble humic acid – highest in granular category
  2. Slow-release mechanism → 3–4 months continuous feeding
  3. High potassium content (≥ 10% K₂O) with zero chloride
  4. Round, dust-free, high-hardness granules – perfect for mechanical spreading
  5. Approved for organic farming (OMRI-listed grades, Ecocert, EU 2019/1009)
  6. Improves soil for many seasons – long-term soil conditioning effect
  7. Non-burning, non-hygroscopic, excellent storage stability
  8. Dark color helps warm soil faster in spring

Storage

Cool, dry, well-ventilated warehouse. Avoid rain and direct sunlight. Stack max. 10 bags high.

Shelf Life

Minimum 5 years in original sealed packaging.