14%-16% Seaweed Extract Fertilizer
  • Product Name: Seaweed Extract Liquid Fertilizer (14%–16% w/w Seaweed Extract)
  • Category: 100% Organic Biostimulant & Natural Plant Growth Promoter

1. Specifications

Parameter ContentTypical Value
Seaweed Extract (Ascophyllum nodosum)14% – 16%15.0%
Total Organic Mattermin. 18%20–25%
Alginate (polysaccharide)min. 2.5%3.0–4.0%
Mannitolmin. 0.8%1.0–1.5%
Total Nitrogen (N)0.8–1.5%1.2%
Phosphorus (P₂O₅) soluble0.1–0.5%0.3%
Potassium (K₂O) soluble2.0–4.0%3.0%
Calcium (Ca)0.2–0.6%0.4%
Magnesium (Mg)0.1–0.4%0.25%
Sulfur (S)0.5–1.2%0.9%
Iron (Fe) chelated150–400 mg/kg280 mg/kg
Zinc (Zn) chelated50–200 mg/kg120 mg/kg
Manganese (Mn) chelated50–150 mg/kg90 mg/kg
Copper (Cu) chelated20–80 mg/kg50 mg/kg
Boron (B)50–150 mg/kg100 mg/kg
Molybdenum (Mo)5–20 mg/kg12 mg/kg
Total Amino Acids (free + combined)2.0–4.0%3.2%
Cytokinins (as zeatin equivalent)80–150 ppm120 ppm
Auxins (IAA equivalents)20–50 ppm35 ppm
Betaines (glycine betaine)300–800 ppm550 ppm
Polyphenols0.2–0.6%0.4%

2. Physical and Chemical Properties

PropertySpecification
AppearanceDark brown/black viscous liquid
OdorCharacteristic marine/seaweed
pH (1:250 dilution)8.0 – 10.0
Density (20°C)1.10 – 1.18 g/cm³
Solubility in water100% miscible
Electrical Conductivity (1:250)8–15 mS/cm
Total Solids22–28%
Viscosity (20°C)200–600 cP
Heavy Metals (total)< 20 ppm (complies with EU 2019/1009)
Arsenic (As)< 2 ppm
Cadmium (Cd)< 1 ppm
Lead (Pb)< 5 ppm
Mercury (Hg)< 0.1 ppm

3. Key Active Components & Mode of Action

  • Alginic acid & polysaccharides → improve soil structure, water retention, cation exchange capacity
  • Natural plant growth regulators (cytokinins, auxins, gibberellins) → stimulate cell division, root development, flowering, and fruit setting
  • Mannitol & betaines → osmotic stress protection, antioxidant activity
  • Amino acids & peptides → chelate micronutrients, enhance nutrient uptake
  • Trace elements in natural chelated form → high bioavailability

4. Recommended Application Rates

Crop / UseFoliar Spray (L/ha)Fertigation/Drip (L/ha)Frequency
Vegetables & Leafy Greens1.5–3.05–102–4 times
Fruit Trees (apple, citrus, grape)2.0–4.010–203–6 times
Field Crops (cereals, maize, soybean)1.5–3.05–152–3 times
Turf & Ornamentals1.0–2.05–10every 14–21 days
Seed Treatment2–4 L per 1000 kg seedonce

5. Packaging

  • 1 L, 5 L, 20 L HDPE bottles/drums
  • 200 L plastic drums
  • 1000 L IBC totes

6. Storage & Shelf Life

  • Store in cool, shaded place (5–30°C)
  • Avoid direct sunlight and freezing
  • Shelf life: 36 months from manufacturing date when stored properly
  • Agitate before use if stored for extended periods

7. Safety & Handling

  • Non-toxic, non-hazardous
  • Wear gloves and eye protection during handling
  • In case of eye contact: rinse with plenty of water
  • Not classified as dangerous goods (ADR/IMDG/IATA)