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Quick Details

  • Classification: Organic Fertilizer
  • Type: Seaweed
  • CAS No.: 68917-51-1
  • Other Names: Algae, Varek, Seaware
  • MF: C12H16O12)n
  • EINECS No.: 250-715-9
  • Place of Origin: Shaanxi, China (Mainland)
  • Release Type: Quick
  • State: Powder
  • Purity: 100% Natural
  • Application: Reduces disease, improve production, and increase stress resistance
  • Brand Name: CityMax
  • Model Number: MAX SeaSailer
  • Product Name: Seaweed extract
  • Appearance: Black Flake/Powder
  • Origin: Ascophyllum Nodosum, Laminaria
  • Certificate: ISO9001, OMRI
  • Color: Dark
  • PH: 9-11
  • WEBSITE: www.citymax-agro.com
  • alginic acid: 16%min
  • mannitol: 3%
  • potassium: 18%

Packaging & Delivery

Packaging Details Available in 20kg/ bag or Paper bag with inner plastic lining or customized.
Delivery Time Shipped in 5 days after payment

New Arrival! Seaweed Extract

What advantages that our seaweed extract have

Seaweed extract is a 100% natural seaweed extract from Ascophyllum nodosum.  It contains various natural nutrient substances, mannitol, trace minerals, carbohydrates such as alginic acids, polysaccharide and etc. It has obvious positive effects on crops and helps reduce the risk of disease. 

Seaweed extract details


Alginic Acid


Water Solube


Organic Matter


PH Value



Seaweed extract more information


Seaweed Extract is totally soluble in water, and has obvious positive effects on crops and helps reduce the risk of disease. It contains various mineral elements and is rich in vitamins, particularly in unique algae seaweed polysaccharides and alginic acid. Also, it has highly unsaturated fatty acids and a variety of natural plant growth regulators.


Seaweed extract application


Seaweed extract is suitable for all crops including field crops, potting soil, vegetable and flower gardens, orchards and turf grass, and suitable for most methods of application, such as foliar application, irrigating application (including irrigation in drops, irrigation by infiltration and spray irrigation etc.), soil application, soaking seed and so on.


Seaweed extract benefits


Enhances yield and quality of crops, vegetables, and fruits

Resists diseases and improves yield

Increases stress resistance

Improves soil structure

Inhibits harmful pests, alleviates pest damage

Accelerates the formation of soil aggregate structure

Free of pollutants

Promotes cell division, increases metabolism

Promotes the bud to bloom

Contains PGR like gibberellic acid

Stimulates root growth and transplants

Increases fertilizer efficiency and chelation


Seaweed extract packages


500g, 1kg, 5kg, 10kg, 20kg/25kg bag.

Seaweed extract certificate


ISO9001, OMRI organic certification. 


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


Transaction History of the Supplier

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Transaction Overview


Transaction Details

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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.
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Supplier's Trade Assurance Limit: US $46,000
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