Product Name
Liquid, flakes or powder Seaweed Extract Fertilizer 18%
Product Description
This premium 18% formulation delivers the highest natural levels of plant growth regulators (auxins, cytokinins, gibberellins, brassinosteroids), alginic acids, mannitol, glycine betaine, laminarin, fucoidan, complex polysaccharides, oligopeptides, free amino acids, vitamins and organically chelated trace elements currently available in liquid form.
The 18% concentration corresponds to minimum 180 g/L dry seaweed solids (18% w/v equivalent) with typical values 185–195 g/L in current production batches.
Physical and Chemical Properties
| Property | Specification |
|---|---|
| Appearance | Very dark brown to near-black viscous liquid/flakes/powder |
| Odour | Intense characteristic marine/seaweed |
| pH (neat) | 9.0 – 10.5 |
| pH (1:100 dilution) | 8.5 – 9.8 |
| Density @ 20°C | 1.22 – 1.30 kg/L |
| Solubility in water | 100% miscible |
| Viscosity @ 20°C | 300 – 800 cP |
| Freezing point | ≈ –8°C to –10°C |
| Boiling point | >100°C |
| Shelf life (unopened, cool storage) | Minimum 4 years |
Guaranteed Minimum Analysis (w/v)
| Component | Content |
|---|---|
| Seaweed extract (Ascophyllum nodosum) | 18.0% (minimum 180 g/L) |
| Organic matter | ≥ 15.0% |
| Alginic acid | ≥ 3.0% (≥ 30 g/L) |
| Mannitol | ≥ 1.0% (≥ 10 g/L) |
| Total Nitrogen (N) | 0.8 – 1.8% |
| Phosphorus pentoxide (P₂O₅) soluble | 0.3 – 6.0% |
| Potassium oxide (K₂O) soluble | 14.0 – 19.0% |
| Cytokinins + Gibberellins + Auxins + Brassinosteroids | ≥ 1 100 ppm |
| Total free amino acids + oligopeptides | ≥ 3.0% |
| Glycine betaine | ≥ 1 800 ppm |
| Laminarin + Fucoidan | ≥ 2.0% |
| Total trace elements (Fe, Zn, Mn, Cu, B, Mo, Co, I) | ≥ 0.8% (organically chelated) |
Key Benefits
- Exceptional root architecture development and explosive early vigour
- Outstanding abiotic stress mitigation (drought, heat, cold, salinity, waterlogging, UV)
- Dramatically improved nutrient-use efficiency – documented 20–35% reduction in NPK fertiliser requirements
- Significantly higher chlorophyll density and photosynthetic rate resulting in superior yield and quality parameters
- Excellent control of physiological disorders (blossom-end rot, tip burn, bitter pit, cracking)
- Superior fruit size uniformity, colour, sugar content, flavour and post-harvest shelf life
- Strong induction of systemic acquired resistance (SAR) and priming of plant defence pathways
- Completely safe for pollinators, beneficial insects, earthworms and soil microbial populations
Recommended Application Rates (18% ultra-concentrate)
| Application Method | Dilution Rate | Dosage per ha (per application) | Frequency / Timing |
|---|---|---|---|
| Foliar spray | 1:1,500 – 1:3,000 | 0.5 – 1.5 L | 3–6 applications from early vegetative to pre-harvest |
| Fertigation / drip | 1:5,000 – 1:10,000 | 5.0 – 12.0 L | Weekly to bi-weekly during peak demand periods |
| Soil drench | 1:2,000 – 1:4,000 | 1.5 – 3.5 L | At transplanting, flowering and fruit development stages |
| Root dip (transplants) | 1:800 – 1:1,000 | 0.10–0.125% solution | Immediately before planting |
| Seed treatment | 1:300 – 1:500 | 4–8 mL/kg seed | Soak 8–24 h or wet dressing |
Compatibility
Outstanding stability and compatibility with humic/fulvic acids, amino acids, phosphites, biological inoculants and most conventional agrochemicals. Highly recommended in integrated programs with seaweed + humic + microbes.
Storage and Handling
- Store between 5–30°C in dark conditions; avoid freezing and prolonged heat >40°C
- Keep containers tightly sealed; product is hygroscopic
- Thoroughly agitate/shake before use (natural settling may occur)
- Non-hazardous, non-flammable, not classified as dangerous goods (ADR/IMDG/IATA)
Safety Information
- Classification: Non-hazardous substance/non-dangerous good
- Eye/skin contact: Rinse thoroughly with water
- Ingestion: Drink water; no specific antidote required
- Environmental: Readily biodegradable, EC50 >1 500 mg/L (aquatic organisms), safe at label rates
Packaging Options
5 L, 10 L, 20 L, 200 L drum, 1000 L IBC (Other sizes and private label available)

