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Seaweed Extract Granules
| Ingredients | Content I | Content II |
| Alginic Acid | ≥25% | ≥35% |
| Organic Matter | ≥45.0% | ≥45.0% |
| Total Nitrogen (N) | ≥1.0% | ≥2.0% |
| Phosphorus (P2O5) | ≥2.0% | 0-1.0% |
| Potassium (K2O) | ≥20% | ≥18% |
| Mannitol | ≥1.0% | ≥1.0% |
| Microelements (Fe/Zn/B/Mo) | ≥0.5% | ≥0.5% |
| Natural Plant Hormone | 600ppm | 700ppm |
| PH | 9.0-11.0 | 9.0-11.0 |
| Solubility In Water | 100% | 100% |
| Appearance | Powder/Black Brown Granule | Black Brown Granule |
- Form
- Granule
- Declared
- Composition: Over 60 minerals, 17 amino acids, natural growth hormones (auxin, cytokinin, gibberellin), alginic acids and complex sugars
- Applied by
- Foliar · soil treatment · hydroponics
Seaweed Extract Granules — specification
| Parameter | Declared value |
|---|---|
| Declared grades | Content I (standard) · Content II (high alginic) |
| Appearance | Content I: powder / black-brown granule · Content II: black-brown granule |
| Alginic acid | Content I ≥ 25% · Content II ≥ 35% |
| Organic matter | Content I ≥ 45.0% · Content II ≥ 45.0% |
| Total nitrogen (N) | Content I ≥ 1.0% · Content II ≥ 2.0% |
| Phosphorus (P₂O₅) | Content I ≥ 2.0% · Content II 0–1.0% |
| Potassium (K₂O) | Content I ≥ 20% · Content II ≥ 18% |
| Mannitol | Content I ≥ 1.0% · Content II ≥ 1.0% |
| Microelements (Fe/Zn/B/Mo) | Content I ≥ 0.5% · Content II ≥ 0.5% |
| Natural plant hormones | Content I 600 ppm · Content II 700 ppm |
| pH | 9.0–11.0 (both grades) |
| Solubility in water | 100% (both grades) |
| Composition | Over 60 minerals, 17 amino acids, auxin/cytokinin/gibberellin, alginic acids and complex sugars |
| Field observation | Trials report up to a 60% increase in root mass (trial conditions available on request) |
Two declared grades are supplied under this product page: Content I carries ≥ 25% alginic acid, Content II ≥ 35%. Figures are the declared values carried on this page, not a guaranteed result in every field. Granules are the slowest of the solid grades to dissolve, which is what makes the soil-conditioning effect the strongest. Moisture is not declared on this grade — ask our export team for the batch certificate of analysis.
How it is applied
- Foliar spray — dissolve in water for direct leaf delivery
- Soil treatment — incorporate for long-lasting root nourishment
- Hydroponic systems — dissolves without clogging nutrient lines
Rate guidance: the rate depends on crop, growth stage and whether you spray, drench or apply to soil. Tell us the crop and the application method you use and we will send the rate for this grade.
Choosing between our seaweed extract grades
Our seaweed extract is supplied in four physical forms and three fortified variants. The right grade depends on how you apply it and what you are correcting.
| Grade | Form | What distinguishes it | Usual application |
|---|---|---|---|
| Seaweed Extract Flakes | Flake | Concentrated solid; dissolves for spray or irrigation | Foliar, root irrigation, soil |
| Seaweed Extract Powder | Ultra-fine powder | Dissolves completely; also used in cosmetic formulations | Foliar, drip, hydroponics, seed treatment |
| Seaweed Extract Granules (this grade) | Granule | Slowest to dissolve of the solids; strongest soil-conditioning effect | Foliar, soil treatment, hydroponics |
| Seaweed Extract Liquid | Liquid | Ready-to-dilute; alginic acid ≥ 8 g/L, K₂O ≥ 30 g/L | Foliar, drench, irrigation |
| Green Seaweed Liquid | Liquid, two grades | Standard and high-grade variants with different NPK balance | Foliar, soil, irrigation |
| Seaweed Extract — Micronutrient Type | Powder | Fortified to ≥ 13% micronutrients for trace-element correction | Foliar, soil, hydroponics |
| Seaweed Extract — Protein Type | Powder | Fortified to ≥ 80% protein and ≥ 14% N | Foliar, drench, drip |
| Seaweed Extract — Green NPK Type | Powder | Balanced with K₂O ≥ 16% for pre-harvest quality work | Foliar, drench, fertigation |
Technical background
If you are comparing this grade with others, or you need to justify the application to an agronomist or a buyer, these two guides cover the underlying chemistry and the field evidence: Seaweed fertiliser active ingredients — full guide and Application efficacy — what the evidence shows.
Related grades:
Technical data sheet, batch COA and packing options for this grade are available on request through our export team.
Seaweed Extract Granules — frequently asked questions
Which grades of Seaweed Extract Granules are available?
Seaweed Extract Granules is supplied as Content I (standard) · Content II (high alginic). Declared appearance: Content I: powder / black-brown granule · Content II: black-brown granule.
What are the declared specifications of Seaweed Extract Granules?
Declared values on this page: alginic acid — Content I ≥ 25% · Content II ≥ 35%; organic matter — Content I ≥ 45.0% · Content II ≥ 45.0%; total nitrogen (N) — Content I ≥ 1.0% · Content II ≥ 2.0%; phosphorus (P2O5) — Content I ≥ 2.0% · Content II 0–1.0%; potassium (K2O) — Content I ≥ 20% · Content II ≥ 18%; mannitol — Content I ≥ 1.0% · Content II ≥ 1.0%; microelements (Fe/Zn/B/Mo) — Content I ≥ 0.5% · Content II ≥ 0.5%; pH — 9.0–11.0 (both grades); water solubility — 100% (both grades). All figures are declared minimums or ranges, not guaranteed field results, and a batch-specific Certificate of Analysis accompanies every shipment.
How is Seaweed Extract Granules applied?
Typical application routes: foliar spray — dissolve in water for direct leaf delivery; soil treatment — incorporate for long-lasting root nourishment; hydroponic systems — dissolves without clogging nutrient lines. The exact rate depends on the crop, the growth stage and the application method — send us your crop and method and we will return the recommended rate for this grade.
What should I know before ordering Seaweed Extract Granules?
Two declared grades are supplied under this product page: Content I carries ≥ 25% alginic acid, Content II ≥ 35%. Figures are the declared values carried on this page, not a guaranteed result in every field. Granules are the slowest of the solid grades to dissolve, which is what makes the soil-conditioning effect the strongest. Moisture is not declared on this grade — ask our export team for the batch certificate of analysis.
