Seaweed Extract    

Suppliers of100% water soluble seaweed extract from ascophyllum nodosum in flakes or powder form. The main ingredients are natural biologically active substances and mineral nutrients that are beneficial to plant growth.
  • 18%
  • 48%
  • 20%
  • 6-8
  • flakes or powder

Seaweed extract is a natural active substance got from the fermented enzyme disintegration that has fertilizer effects can be absorbed directly. It is an important component in the category of biological stimulant. Seaweed extract contains plant growth regulators and biological activity substances, which has the effects of promoting roots, raising seedlings, and swelling fruits. As a professional seaweed extract manufacturer and global supplier, Shandong Jiejing Group Corporation has been specialized in manufacturing and exporting seaweed extract for decades. Please be rest assured to buy seaweed extract from Shandong Jiejing. Any questions or inquiry feel free to contact us by email, you will get response in one working day.

Seaweed extract flakes and Seaweed extract powder

In addition to alginic acid, seaweed extract also contains plant essential elements nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S), iron (Fe), manganese (Mn), copper (Cu), zinc (Zn), molybdenum (Mo), boron (B), also contains 18 protein amino acids that can be directly absorbed by plants and plant growth substances that have a significant impact on plant physiological processes ( Auxin, cytokinin, gibberellin), also contains vitamins, nucleotides, humic acid and plant stress resistance factors. Seaweed extract integrates plant nutrients, biologically active substances, and plant stress resistance factors. It is an ideal full-featured seaweed fertilizer.

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Seaweed extract benefits for agriculture:

  • Regulate immunity: Natural seaweed active substances can induce the plant's own immune system, enhance crop immunity, and adjust the two-way balance to obtain the best yield.

  • Resist stress and increase production: Rich in betaine, mannitol, seaweed polysaccharides, etc., improving crop resistance to waterlogging, drought, and cold, and prevent bacterial and fungal diseases.

  • Improve quality: Contains a variety of natural plant endogenous hormones, trace elements, minerals, etc. that participate in plant metabolism, promotes the accumulation of dry matter, increases the sugar content of the fruit, ensures uniform expansion of the fruit, and prolongs the shelf life.

  • Rhizosphere regulation: Provide a good ecological environment for root development, fast rooting of crops, large root volume, strong root vitality, and relieve symptoms such as root rot and root poisoning caused by soil overacidity, heavy metals, herbicides, etc.

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How to use seaweed extract:

  • Foliar spraying: dilute 1500-3000 times, stir and spray evenly.

  • Root irrigation or drip irrigation: diluted 800-1500 times, 6-15 kilograms per HA. It can also be adjusted appropriately according to the local soil fertility.

  • Compound use: add 6-10kg per ton for compound fertilizer containing alginic acid. Add 10-20kg per ton for compound water-soluble fertilizer.

Package: 200g, 500g, 10kg, 20kg

Certificate of analysis

Appearanceblack powder or flakes
Alginic acid (%)≥18.0
Organic matters (%)≥45.0
Moisture %≤5.0
Hg mg/kg≤5
As mg/kg≤10
Cd mg/kg≤10
Pb mg/kg≤50
Cr mg/kg≤50


1. What kinds of certificates can supply?

Shandong Jiejing Group is an ISO2008 9001, ISO14001 certified company. 

2. Is Shandong Jiejing Group Corporation a manufacturer or a trading company?

Shandong Jiejing Group Corporation is not only a manufacturer, but also a pioneer in the industry since 1968. Our manufacturing site covers 133,200 square meters. We devote ourselves to leading the sustainable development of industry. We would like to cooperate with all distributors, traders, wholesalers, retailers and end-users.

3. What is the Min Order Quantity of seaweed extract?

Generally our MOQ of seaweed extract is 5kg. But it depends, if your quantity is less, we also can accept it.

4. Can you supply seaweed extract sample for test before official order?

For sure, 200g free seaweed extract sample is available for your analysis. You also can buy more sample according to your actual situation.

5. What is the price of seaweed extract?

As the leading seaweed extract manufacturer and exporter in China, our seaweed extract price is very competitive. And you can get discount based on order quantity.

6. What's your packing size of seaweed extract?

Our seaweed extract packing is 20kg/paper kraft bag, or customized. Your own brand or logo or buyer information can be sticked onto bags. 

7. What kinds of transportation can you offer?

We can offer by sea, by air, by courier, by train, any transportation you can do. 

8. What kinds of payment terms can you accept?

We can accpet TT, LC, CAD, DP etc.

9. What's the lead time?

Generally we can make shipment in 5 working days after order confirmation.

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