Sea-Sol: Norwegian Kelp Extract Biostimulant for Plant Health and Stress Resistance

Sea-Sol is a liquid biostimulant derived from **Ascophyllum nodosum** (knotted wrack), a cold-water brown kelp harvested off Norway's coast. It's not a fertilizer — it's a **plant physiology modulator** that enhances how plants use nutrients and handle stress.

Composition

• Alginates, laminarin, fucoidan: Polysaccharides — root growth, microbial stimulation
• Cytokinins, auxins, betaines: Natural growth hormones — cell division, delayed senescence
• Minerals: 60+ trace elements (iodine, selenium, zinc, iron) — chelated, bioavailable
• Mannitol: Sugar alcohol — osmotic stress protection
• Organic acids: Nutrient chelation, soil conditioning

Mode of Action

• Root stimulation: Cytokinins → lateral root proliferation → nutrient/water foraging
• Stress priming: Betaines + mannitol → osmotic adjustment → **frost, heat, drought, salinity tolerance**
• Photosynthetic boost: Chlorophyll retention, Rubisco activation
• Defense elicitation: Laminarin/fucoidan → systemic acquired resistance (SAR) → pathogen/pest resistance
• Microbiome support: Alginates feed beneficial rhizobacteria/fungi

Application

• Foliar spray: 1–2 mL/L — rapid uptake, stress rescue
• Soil drench/fertigation: 2–5 L/ha — root zone conditioning
• Seed treatment: 5 mL/kg — germination vigor
• Timing: Pre-stress (frost, transplant, bloom), early vegetative, fruit set
• Compatible: Most fertilizers, pesticides (jar test first)

Crops & Uses

• Row crops: Corn, soy, wheat — yield stability under stress
• Fruit/Veg: Tomato, strawberry, citrus — quality, shelf life
• Turf/Ornamental: Golf courses, landscaping — color, recovery
• Organic: OMRI-listed (verify formulation)

Not a Fertilizer Replacement

Sea-Sol **supplements** NPK programs — doesn't replace them. Think: **fertilizer = fuel; Sea-Sol = engine tune-up**.

From Arctic kelp to your crop — a billion years of marine evolution in a bottle.