No NPK Green Seaweed Extract Powder
The NPK-Free Green Powder — 100% Soluble, Micronutrient-Rich
Organic matter ≥ 60%
Mannitol ≥ 3%
Water solubility 100%
Every lot ships with a Certificate of Analysis stating the tested values against the stated Chinese industry standards.
Product Overview
Seaweed extract is a water-soluble organic biostimulant produced from marine brown algae. JINGFENG’s Ascophyllum nodosum extract is obtained by physical crushing followed by enzymatic or biochemical hydrolysis, so the algae’s own alginic acid, seaweed polysaccharides, mannitol, betaine, amino acids and natural plant growth regulators (auxins, cytokinins and gibberellins) are preserved intact. The enzymatic range below is fermented and colour-graded (green, brown and black) for different formulation and label needs, and includes NPK-free grades for organic-only blends.
No NPK Green Seaweed Extract Powder is our NPK-free enzymatic seaweed powder: it carries the seaweed’s own alginic acid, polysaccharides, mannitol, betaine, amino acids and natural growth regulators, but contains no added nitrogen, phosphorus or potassium. That makes it a clean base for organic-only fertilizer blends and for growers who want to control N, P and K separately. It is supplied as a fine green powder and is 100% water soluble.
Key Benefits
NPK-free by design
No added nitrogen, phosphorus or potassium — blend your own N-P-K programme on top of a pure seaweed base.
High organic load
≥ 60% organic matter and ≥ 60% seaweed polysaccharides + alginic acid in every batch.
Natural growth regulators
Carries the seaweed’s own auxins, cytokinins and gibberellins, plus mannitol and betaine for stress tolerance.
100% water soluble
Dissolves with no residue for drip, foliar and hydroponic routes.
COA on every batch
Each lot ships with a Certificate of Analysis stating the tested values against Chinese industry standards.
Technical Specification
| Parameter | Specification | Test standard |
|---|---|---|
| Appearance | Green powder | Visual inspection |
| Water solubility | 100% | NY/T 1973-2021 |
| pH | 6 – 7 | NY/T 1973-2021 |
| Organic matter | ≥ 60% | NY/T 1976-2010 |
| Seaweed polysaccharides + alginic acid | ≥ 60% | GB/T 5009 |
| Mannitol | ≥ 3% | HPLC |
| Amino acid | ≥ 3% | NY/T 1979-2008 |
| Betaine | ≥ 3% | HPLC |
| Boron (B) | ≥ 1% | NY/T 1117-2010 |
| Indoleacetic acid (IAA) | 50 ppm | HPLC |
| Cytokinin | 30 ppm | HPLC |
| Gibberellin | 50 ppm | HPLC |
| Moisture | ≤ 3% | GB/T 8576-2010 |
| Nitrogen / P₂O₅ / K₂O | None — NPK-free | Product specification |
| Cadmium (Cd) | ≤ 1 ppm | NY/T 1978-2022 |
| Nickel (Ni) | ≤ 1 ppm | NY/T 1978-2022 |
| Lead (Pb) | ≤ 1 ppm | NY/T 1978-2022 |
| Mercury (Hg) | ≤ 1 ppm | NY/T 1978-2022 |
| Chromium (Cr) | ≤ 1 ppm | NY/T 1978-2022 |
| Arsenic (As) | ≤ 1 ppm | NY/T 1978-2022 |
Specification values are guaranteed minimums on a dry basis, taken from the batch Certificate of Analysis and tested against the stated Chinese industry standards. Every shipment travels with its own COA stating the tested values.
Need the full Certificate of Analysis, MSDS, or TDS for your formulation or tender file?
Form & Solubility
Form: green, free-flowing powder. Low dust for a seaweed powder; wets out readily and mixes evenly into dry blends.
In water: 100% water soluble. It disperses within seconds under light agitation and leaves no residue, so it can go straight into the spray tank or the fertilizer stock.
Handling: standard dust protection when handling bulk. Reseal opened bags to keep moisture out.
How the enzymatic seaweed extracts compare
| Grade | Form | Seaweed active | Organic matter | NPK | Best for |
|---|---|---|---|---|---|
| No NPK Green Seaweed Extract Powder (this product) | Powder | ≥ 60% alginic + poly | ≥ 60% | No NPK | Organic-only blends, soil |
| No NPK Brown Seaweed Extract Powder | Powder | ≥ 30% alginate + oligo | ≥ 40% | No NPK | Micronutrient-rich organic blends |
| Enzymatic Brown Seaweed Extract Liquid | Liquid | ≥ 15% seaweed oligo | ≥ 8% | N + P + K | Foliar and fertigation |
| Enzymatic Brown Seaweed Extract Powder | Powder | ≥ 30% alginate | ≥ 60% | N + P + K (K₂O ≥ 16%) | Compound fertilizer blending |
| Enzymatic Green Seaweed Extract Liquid | Liquid | ≥ 40% seaweed oligo | ≥ 15% | N + P + K | High-load foliar |
| Enzymatic Green Seaweed Extract Powder | Powder | ≥ 40% alginate | ≥ 60% | N + P + K (K₂O ≥ 18%) | Premium organic blends |
| Seaweed Extract Black Liquid | Liquid | ≥ 40 g/L alginic | ≥ 100 g/L | N + P + K (K₂O ≥ 40 g/L) | Instant soil and plant rejuvenation |
The enzymatic range spans NPK-free powders, NPK-bearing powders and ready-to-use liquids. Liquids are dosed per litre (g/L); powders are dosed per kilogram (w/w). Pick the form that fits your blending and application route.
Applications & Dosage
For soil application, foliar spray and hydroponic / irrigation systems — as a pure seaweed base with no added N, P or K.
| Application | How to use | Rate |
|---|---|---|
| Soil application | Apply 1 – 4 lbs per acre as a top-dressing or mix into soil before planting. | 1 – 4 lbs / acre |
| Foliar spray | Apply 0.5 – 2 lbs per acre, sprayed in the cool part of the day; reapply every 2 – 4 weeks. | 0.5 – 2 lbs / acre |
| Hydroponics / irrigation | Add 1 – 2 oz per 100 gallons of nutrient solution or irrigation water. | 1 – 2 oz / 100 gal |
Packaging & Storage
| Pack size | Description |
|---|---|
| 1 kg / 5 kg / 10 kg | Printed aluminium foil bag |
| 10 kg / 20 kg | Printed carton box |
| 20 / 25 kg | Woven or paper bag with inner liner; colour-printed PP/PE bag with inner liner |
| 1000 / 1100 kg | Jumbo bag with discharge spout |
Storage: Store in a cool, dry, well-ventilated place, away from direct sunlight and moisture. Stable for 2 years in the sealed original packaging; reseal opened bags.
Custom packaging, private-label printing and OEM specifications are available on request. Packaging photos are available in the product gallery.
Successful Cases
Organic blender, Shandong
Used as an NPK-free seaweed base in an organic granular line; dispersed uniformly through the batch.
Explore applications →
Field reference
Vegetable programme, Spain
Sprayed in the cool part of the day; steady leaf colour and less heat stress noted across the block.
Explore applications →
Field reference
Hydroponic herb grower, Netherlands
Dosed into the nutrient line; clean solubility with no filter blockage.
Explore applications →
Full case studies with crop data are published in our application sectors.
Frequently Asked Questions
What does No NPK mean?
This powder contains no added nitrogen, phosphorus or potassium. It delivers the seaweed’s alginic acid, polysaccharides, mannitol, betaine, amino acids and natural growth regulators, so you can build your own N-P-K programme on top of a pure seaweed base.
Is it suitable for organic farming?
It is a seaweed-derived organic input with no added synthetic plant hormones. Ask us for the input list and technical data sheet you need for your certification body.
How do I apply it?
For soil use 1 – 4 lbs per acre as a top-dressing; for foliar 0.5 – 2 lbs per acre; for hydroponics 1 – 2 oz per 100 gallons. Always add the product to water, not water to the product.
Is it 100% water soluble?
Yes — 100% water soluble with no residue. It dissolves under light agitation and leaves nothing to filter, so it is safe for drip lines, micro-sprinklers and spray tanks.
Do you provide a COA per batch?
Yes. Every shipment travels with a Certificate of Analysis stating the tested organic matter, seaweed polysaccharides + alginic acid, mannitol, amino acid, betaine and micronutrients.
What is the minimum order and lead time?
Standard stock item. MOQ one pallet; 7 – 15 days ex-works. Private-label printing and custom blends are available on request.
Also Available in This Family
Seaweed Extract Black Liquid – High-Content Liquid Biostimulant
Enzymatic Green Seaweed Extract Powder – Alga GSP 50%
Enzymatic Green Seaweed Extract Liquid – Alga L 40% Biostimulant
Enzymatic Brown Seaweed Extract Powder – Bio-Alga BSP
Enzymatic Brown Seaweed Extract Liquid – Alga L 15% Biostimulant
No NPK Brown Seaweed Extract Powder – Enzymatic Biostimulant
20% Seaweed Extract Big Flakes – High-Load Biostimulant
18% Seaweed Extract Micro Granule – High-Alginic Biostimulant
18% Seaweed Extract Big Flakes – High-Alginic Soil Conditioner
16% Seaweed Extract Big Flakes – Water-Soluble Biostimulant
25% Seaweed Extract Micro Granule – Maximum-Alginic Grade
25% Seaweed Extract Big Flakes – Maximum-Alginic Grade
20% Seaweed Extract Micro Granule – High-Load Biostimulant
14-16% Seaweed Extract Small Flakes – Water-Soluble Biostimulant
14-16% Seaweed Extract Micro Granule – Water-Soluble Biostimulant
12% Seaweed Extract Small Flakes – Water-Soluble Biostimulant
12% Seaweed Extract Powder – Organic Biostimulant Raw MaterialNeed a quotation or a sample?
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