All Categories
Black Seaweed Extract Powder/Flakes

Black Seaweed Extract Powder/Flakes

Home > Products > Seaweed Extract > Black Seaweed Extract Powder/Flakes


20% Black Seaweed Extract Flakes

AppearanceBlack Flake
Alginic Acid>20%
Organic Matter>40%
Potassium K2O>18%

Sourced from Canada, Ascophyllum nodosum is our key raw material. Our production methodology uses a biological enzymatic approach to ensure quality. The series of our seaweed extract flake, derived from oceanic seaweed through biochemical procedures, incorporates elements such as cytokinin, oligomeric alginate potassium, betaine, mannitol, polysaccharide, iodine, microelement, and alginic polyphenol.
These constituents of our buy seaweed extract exhibit incredible properties in promoting cell proliferation, enhancing stress resilience, protecting against plant diseases and pests, boosting yield, regulating growth, and enriching soil conditions. Additionally, our seaweed extract fertilizer aligns with the standards of green organic food production due to its superior effectiveness and safety.


Ascophyllum nodosum soluble seaweed extract fosters root enlargement, resolves successive cropping problems, enhances fertilizer efficacy, and prolongs plant life.
It manages plant growth, halts branch overgrowth, and minimizes pruning requirements.
The extract nurtures leaf proliferation and photosynthesis, facilitating nutrient accumulation, transportation, and safekeeping.
Alginate sodium present in the extract improves bud and flower quantity and lowers fruit anomalies.
It enables fruits to retain a pleasing shape, vibrant skin, elevated sugar levels, and extended durability.
Rectifies small, yellow leaves, fruit deflation, bitter pits, and nutrient-lacking diseases.
Repels insects and decreases the dissemination of worm, phytoplasma, and bacterial diseases.
It escalates the plant's resilience to drought, cold, disease, and floods.
Regulates soil pH, improves soil structure, sustains moisture and fertility, and stimulates microbe growth.


*For spray application: The product should be diluted with water in a 1500-2000:1 ratio. Use 0.4-0.6 kg per acre.
*For single-harvest crops, administer the spray 3-4 times throughout the entire growth period.
*In case of crops with several pickings, spray again after every picking.
*For drip irrigation: Dilute the product in a 1500-2000:1 water ratio. Use 0.6-1.2 kg per acre.
*Make 3-4 applications during the entire crop growth period.
Advice: Vegetables and fruits give optimal results when diluted 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





Hot categories