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Black Seaweed Extract Powder/Flakes

Black Seaweed Extract Powder/Flakes

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16% Black Seaweed Extract Flakes

AppearanceBlack Flake
Alginic Acid>16%
Organic Matter>40%
Potassium K2O>18%

The Ascophyllum nodosum, imported from Canada, serves as the chief raw ingredient. The production process employs a biological enzymatic technique. Our seaweed extract flake series, obtained from marine seaweed through a biochemical method, encompasses components such as cytokinin, oligomeric alginate potassium, betaine, mannitol, polysaccharide, iodine, microelement, and alginic polyphenol.This seaweed extract fertilizer showcases impressive attributes, including the stimulation of cell division, stress resistance, plant disease and pest prevention, yield enhancement, growth regulation, and soil condition improvement. Concurrently, our China seaweed extract flake adheres to the criteria of green organic food production due to its high effectiveness and safety.


1: Ascophyllum nodosum soluble seaweed extract encourages root expansion, eases continuous cropping issues, maximizes fertilizer use, and delays plant aging.
2: It governs plant growth, curbs overgrowth of branches, and lessens the need for pruning.
3: The extract boosts leaf development and photosynthesis, beneficial for nutrient collection, transport, and storage.
4: Alginate sodium in the extract enhances bud and flower production and reduces fruit abnormalities.
5: It ensures fruits have an appealing form, vibrant peel, high sugar level, and extended shelf-life.
6: Amends small and yellow leaves, fruit shrinkage, bitter pits, and nutrient-deficiency related disorders.7: Repels pests and minimizes the transmission of worm, phytoplasma, and bacterial infections.
8: It strengthens the plant's resistance to drought, cold, disease, and floods.
9: Adjusts soil pH, enhances its structure, retains moisture and fertility, and fosters microbial growth.


*For spraying: Mix with water at a ratio of 1:1500-2000. The recommended dosage is between 0.4 and 0.6 kilograms per acre.
*For crops harvested once, 3-4 sprays throughout the growing period are advisable.
*For multi-harvest crops, reapply the mixture after every harvest.
*For drip irrigation: Dilute the mixture with water for 1500-2000 times, applying 0.6 to 1.2 kilograms per acre.
*It should be applied 3-4 times throughout the entire growth cycle.
Note: For vegetables and fruit products, the optimal dilution is 600-700 times.

CropGrowth StageDosage Ratio (Potassium Fulvate)
RiceSeedling Stage300-500g/Ha
Pre-gestation Stage300-500g/Ha
Seed Maintenance Stage300-500g/Ha
SweetcornGrowth Stage300-500g/Ha
Pod Maintenance Stage300-500g/Ha
PineappleGrowth Stage300-500g/Ha
Fruit Bearing Stage400-600 Kg/Ha
Longan/Lychee/Mango/Durian/Mangosteen/Rambutan/GrapesGrowth Stage300-500g/Ha
Pre-flowering Stage300-500g/Ha
Fruit Bearing Stage400-600 Kg/Ha
Vegetables (Kale, Cucumbers, Long beans, Green peas, Eggplant)All Stages300-500g/Ha
Cabbage/Cauliflower/Turnip/BroccoliAll Stages300-500g/Ha
Mulberry Leaves/Tea LeavesAll Stages300-500g/Ha
SugarcaneAll Stages300-500g/Ha
Chili/PepperGrowth Phase300-500g/Ha
Pre-flowering Stage300-500g/Ha
Fruit Bearing Stage400-600 Kg/Ha
CassavaGrowth Stage300-500g/Ha
Bulb Maintenance Stage300-500g/Ha
RubberGrowth Stage300-500g/Ha
Orange/Lemon/GrapefruitGrowth Stage300-500g/Ha
Pre-flowering Stage300-500g/Ha
Fruit Bearing Stage400-600 Kg/Ha
AsparagusAll Stages300-500g/Ha
PalmGrowth Stage300-500g/Ha
Enduring Period300-500g/Ha


1. How do you maintain quality control?
We place immense value on the quality of our products. To ensure this, our quality control team is deeply involved at every stage of the production process. Each batch of our product undergoes rigorous testing, including HPLC, before dispatch. Additionally, pre-shipment inspections by SGS or PONY are conducted to guarantee the quality of our products.

2. Do you offer samples?
Absolutely, we are happy to provide samples upon request. Once we receive your inquiry, we will promptly arrange to send samples to you.

3. What are the payment terms?
Typically, our payment terms are 30% TT in advance, with the remaining 70% TT against the BL copy. We also accept LC at sight.

4. How can I track my shipment after payment?
Rest assured, we will keep you updated on your shipment. Details including packing, tracking number, loading photos, and shipping documents will be sent to your email promptly.

5. What is your minimum order quantity (MOQ)?
Our standard MOQ is 1 kilogram.

6. Can you customize our bags or print our logo on them?
Absolutely, we welcome and accept OEM requests!

7. How long does delivery take?
Our general delivery timeframe is 7-10 days, assuming we have the product in stock. If not, it may take between 10-15 days to arrange shipping.

8. Are you trading company or manufacturer?
We are manufacture. Our manufacturing facility is nestled in the scenic landscapes of the Ningxia Autonomous Region. With an annual production capacity of 21,000 tons, we cordially invite you to visit our factory.


1KG/BAG, 5KGS/BAG, 10KGS/BAG, 25KGS/Kraft Paper Bag, or customized packing is available. More package information to check:Youtube Video

1: 25KG/50KG/ color pp bags or kraft paper bags




2: 500G/1KG/ Foil bags in cartons




3: 25KG/50KG/1000KG white bags





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