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Quick Details

  • Classification: Organic Fertilizer
  • Type: Seaweed
  • CAS No.: 479-66-3
  • Other Names: Seaweed Extract
  • MF: (OH)n-R-(COOH)n
  • EINECS No.: 215-809-6
  • Place of Origin: Shaanxi, China (Mainland)
  • Release Type: Quick
  • State: Powder
  • Purity: 100%
  • Application: Organic Fertilizer,Increase in Yield
  • Brand Name: CITYMAX
  • Model Number: MAX SeaOwner
  • Product Name: seaweed fertilizer
  • Origin: Ascophyllum nodosum
  • Form: granular fertilizer
  • Appearance: Granule
  • Color: black
  • PH: 6.0-8.0
  • Alginic acid: 9%
  • Organic matter: 13.5%
  • Microelement: 0.8%
  • NPK: 10-2-6

Packaging & Delivery

Packaging Details Available in 20kg/25kg Paper bag
Delivery Time Delivery will be within 5-7 days after receiving deposit.

2017 hot seaweed fertilizer

What advantages that our seaweed fertilizer have

Seaweed fertilizer is derived from natural Ascophyllum Nodosum. This product has many features, such as totally decomposed, high content of medium trace elements (Ca, Mg, S), hard particles, large volume, slow-releasing, controlled release, safe, efficient and so on. It Appears as round granular. 

Seaweed fertilizer details


Test Result


Black Granular


Seaweed flavor

Organic Matter


Alginic Acid


Soluble in Water

Not water soluble


6 ~ 8

Total Nitrogen
















Seaweed fertilizer more information


Seaweed fertilizer in Granular form is derived from natural Ascophyllum Nodosum.It mostly used for soil application.

Seaweed fertilizer application


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

Soil Application:

For Fruit Trees: 3-5kg/plant, once a year

For Field Crops: 600-800kg/ha before planting, once a crop season

Vegetables: 2400-4800kg/ha before planting, once a crop season


Seaweed fertilizer benefits


Improves soil structure to loosen soil and break the soil compaction
• Environmental friendly: regulating soil micro ecology, decreasing pesticide residues, and passivating heavy metals
• Reduces diseases: controlling the growth of soil-borne pathogens, and reducing the underground pests
• Various nutrition: Be rich in medium trace elements, and prevents the syndrome effectively
• Increases yield: promoting flower bud differentiation, increasing fruit setting rate, promoting the expansion, and improving fruit weight
• Develops the root system, prevents excessive growth, makes plants produce antitoxin, and increases the ability of crop resistance.
• Improves fruit color, surface light and hardness. Improves the content of solid matters and storage stability

Seaweed fertilizer packages


20kg/25kg per bag.


Seaweed fertilizer certificate


ISO9001, SGS.


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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Supplier's Trade Assurance Limit: US $56,000
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