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Product Detail

Seaweed Extract

Ascophyllum nodosum / kelp-source flake and powder, alginic acid ≥16%, K2O ≥18%, organic matter ≥45%, an organic biostimulant raw material. Values are industry-typical and confirmed per batch COA.

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What it is / When to use

Organic biostimulant raw material for rooting and stress tolerance

Seaweed Extract is an organic biostimulant raw material from Ascophyllum nodosum or kelp-source seaweed, supplied as a water-soluble flake or powder with typically alginic acid ≥ 16%, K2O ≥ 18%, organic matter ≥ 45%, and pH 8–10. RunziChem exports it for rooting, stress recovery, and crop-quality programs.

  • What it is Ascophyllum nodosum / kelp-source seaweed extract, dark brown to black flake or powder, water-soluble.
  • When to use Use it as a biostimulant for rooting and stress tolerance, and as a chelating and blending base for NPK and micronutrient formulas via foliar, drip, or flush application.
  • Honesty note specifications are industry-typical values for evaluation; final values are confirmed per batch COA.
Alginic ≥16%Seaweed Extract

Specification

Typical specification for buyer evaluation

Source, appearance, content, pH, solubility, packaging, and document availability are shown for procurement screening. Values are industry-typical; final values are confirmed per batch COA.

ProductSeaweed Extract
SourceAscophyllum nodosum / kelp-source seaweed extract
CASNatural seaweed extract — no single CAS number; composition confirmed per COA
Grade/PurityFertilizer/biostimulant grade; industry-typical values — exact grade confirmed per inquiry
AppearanceDark brown to black flake or powder
Alginic acid≥ 16% (typical), confirmed per batch COA
Potassium (K2O)≥ 18% (typical), confirmed per batch COA
Organic matter≥ 45% (typical), confirmed per batch COA
pH (1% solution)8–10 (typical)
SolubilityWater-soluble flake and powder for foliar, drip, and blending programs
ApplicationsBiostimulant for rooting, stress tolerance, and crop quality; chelating and blending base for NPK and micronutrient formulas
Packaging25 kg / 50 kg export bags, jumbo bags (1,250 kg), and custom packaging on request
DocumentsTDS, current batch COA, and SDS available on request

Applications

Where Seaweed Extract fits

Confirm crop, rate, compatibility, and local label requirements before application.

Rooting & establishment

Alginates and natural growth-promoting compounds support root development and transplant recovery.

Abiotic stress tolerance

Used in programs targeting drought, heat, and cold stress recovery across a range of crops.

Crop quality & potassium

Delivers organic matter ≥ 45% together with K2O ≥ 18% to support fruit set, colour, and quality.

Chelating & blending base

A carrier and biostimulant base for NPK, amino acid, and micronutrient water-soluble formulas.

Compare with amino acid / fulvic acid

For nitrogen-rich uptake compare Amino Acid; for humic-family chelation and drought tolerance compare Fulvic Acid.

Batch documents

TDS, COA, and SDS support procurement and formulation review.

Packaging & Documents

Export packaging with batch-level documents

RunziChem supports standard export bags and procurement documents for review before order confirmation.

  • Packaging 25 kg / 50 kg export bags, jumbo bags (1,250 kg), and custom packaging on request.
  • Documents TDS, current batch COA, SDS, packing list, and shipment documents on request.
  • Quality system ISO 9001-certified quality management, with final product values confirmed by batch COA.

Procurement note

Send target grade, annual volume, destination port, packaging preference, and application route. The export team can reply with the current specification, document set, and quotation.

25 kg 50 kg Jumbo bags Custom pack TDS COA SDS

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Buyer FAQ

Seaweed Extract questions

What is seaweed extract and what does RunziChem seaweed extract contain?
Seaweed extract is a natural biostimulant made from Ascophyllum nodosum or kelp-source brown seaweed. RunziChem supplies it as a water-soluble flake or powder with typical alginic acid ≥ 16%, K2O ≥ 18%, organic matter ≥ 45%, and pH 8–10. These are industry-typical values confirmed per batch COA, not guaranteed minimums for every lot.
Should I choose seaweed extract or amino acid powder for a biostimulant program?
Choose seaweed extract when you want alginates, natural cytokinin-type activity, and K2O ≥ 18% for rooting, stress recovery, and fruit quality. Choose amino acid powder (free amino acids ≥ 40–80%) when the priority is rapid nitrogen uptake and a chelating carrier. Many buyers blend both, since seaweed extract and amino acid perform complementary biostimulant roles.
How is seaweed extract applied and can it be tank-mixed with fertilizers?
Seaweed extract flake and powder are fully water-soluble and are applied through foliar spraying, drip irrigation, and flush application, or blended into NPK and micronutrient formulas. Its pH 8–10 should be checked for compatibility before tank-mixing with acidic products; RunziChem can confirm dissolution behaviour and blend guidance per inquiry.
Are the alginic acid, K2O, and organic matter values guaranteed?
No. The figures shown for seaweed extract, such as alginic acid ≥ 16%, K2O ≥ 18%, and organic matter ≥ 45%, are industry-typical values for buyer screening. The current batch certificate of analysis (COA) confirms the final alginic acid, potassium, organic matter, moisture, and pH for the lot you receive.

Request Seaweed Extract documents and a quote.

Send annual volume, destination market, packaging, and application route. RunziChem can provide TDS, current batch COA, SDS, and a formal quotation.

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