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Quick Details

  • Classification: Organic Fertilizer
  • Type: Humic Acid
  • CAS No.: 68514-28-3
  • Other Names: Humic acid potassium
  • MF: C9H8K2O4
  • EINECS No.: 271-030-1
  • Place of Origin: China (Mainland)
  • Release Type: Controlled
  • State: Powder
  • Purity: Humic Acid(Dry Basis)80%
  • Application: Fertilizer
  • Brand Name: CITYMAX
  • Model Number: Ultra HumiMax
  • Product Name: Humic acid
  • Color: Dark
  • Appearance: shiny flake and fine powder
  • Humic Acid(Dry Basis): 80%
  • Potassium(As K2O): 10%
  • Water Solubility: 99%
  • Source: High Grade Leonardite
  • Certificate: OMRI
  • Qualification: ISO9001
  • WEBSITE: www.citymax-agro.com

Packaging & Delivery

Packaging Details 500g/can, 1kg/bag, 1kg/box,5kg/bag,10kg/Bag,25kg/Bag or as per your request
Delivery Time About 10-15days after receiving your deposit

Water soluble potassium humate humic acid 

What advantages that our humic acid have

1  flake ,powder and granular
2 MOQ:1MT  
3 Certification:OMRI,ISO
4 99%water solubility 

Humic acid details

Product Name

Ultra HumiMax

Humic Acid(Dry Basis)


Potassium(As K2O)


Water Solubility





Shiny flake and  fine powder


Store in cool and dry place


500g/can,1kg/box,10kg/Bag,25kg/Bag or as per your request

Shelf life


Humic acid more information

Ultra HumiMax is an economical Potassium Humate organic fertilizer. It can be used for foliar
spraying and soil application, and meets most consumer demands in both flake and powder form.

Humic acid application

Ultra HumiMax is mainly used in agricultural crops, fruit trees, landscaping, gardening, pastures,
grains and horticultural crops, etc.

Soil Application: 10-15kg/ha
Irrigation: 10-15kg/ha
Foliar Application: 8-10kg/ha with the dilution rate of 1:500-600

Humic acid benefits

• Increases organic matter of soil
• Improves crop respiration and photosynthesis
• Improves potash fertilizer utilization
• Slows decomposition to increase the release of potassium
• Improves stress tolerance of crops
• Enhances water holding capacity of soil
• Reduces soil erosion and improves workability of soil
• Regulates the release of nutrients
• Improves the quality of agricultural crops
• Improves efficacy of Herbicide
• Improves the efficiency of fertilizer


Humic acid packages

Humic acid certificate

The exhibitions we took part in


Why Choose us?

  1. We are a China Leading humic acid Manufacturer.
  2. Alibaba Assessed Gold Supplier.
  3. We are the only Chinese humic acid company who has OMRI certificate in every series.
  4. We have already attracted customers from more than 30 countries and regions.
  5. Cases in many countries.

How to Contact Us?

Send us your enquiry, and we would solve all problems of your soil and crops

Once you choose CITYMAX, forever we have a fulfilling relationship


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China (Mainland) | Manufacturer, Trading Company
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2 Transactions 100+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $46,000
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