Liquid Seaweed Extract

Liquid seaweed extract is a natural, liquid biostimulant based on freshly harvested Ascophyllum nodosum. The extract is produced through a carefully controlled cold extraction process, which does not involve heat or chemical solvents. This preserves the bioactive components of the seaweed in their original, biologically active form.

Thanks to this production method, liquid seaweed extract contains a broad spectrum of functional marine components that directly influence plant physiological processes. The product is used in professional agriculture and horticulture systems, both as a final product and as a functional raw material for fertilizers and biostimulants.

Composition and Origin

Liquid seaweed extract is derived from Ascophyllum nodosum, a brown seaweed that grows in cold, rugged coastal waters. Due to these natural growth conditions, the seaweed develops a high concentration of protective and regulatory substances, which also exhibit biostimulating effects when applied to crops.

The extract contains, among other things, oligo- and polysaccharides, polyphenols, natural sugars, free amino acids, marine minerals, and specific seaweed components such as mannitol, alginic acid, and laminarin. These substances do not act as direct nutrients but as activators of internal plant processes.

Working Mechanism in Plants

The functioning of liquid seaweed extract is based on stimulating the plant's natural regulation and protection mechanisms. Certain polysaccharides, such as laminarin, act as elicitors and activate the plant?s defense system. This so-called priming effect ensures that plants respond more quickly and efficiently to abiotic stress factors.

Additionally, osmotically active substances like mannitol and betaines support water stress, temperature stress, and salt stress. Polyphenols contribute to the plant's antioxidant capacity, while free amino acids and organic carbon components support metabolic processes.

Effects on Growth and Vitality

Through this combined action, liquid seaweed extract supports, among other things:

• an active and uniform root development
• improved nutrient uptake and utilization
• enhanced cell activity and photosynthesis efficiency
• higher tolerance to drought, heat, frost, and salinity

The product functions as a supportive and complementary addition within existing fertilization and biostimulant programs, without imposing hormonal signals on the plant.

Use as Raw Material and Final Product

Liquid seaweed extract is highly versatile: as a standalone biostimulant and as a functional raw material within liquid fertilizers, foliar fertilizers, and biostimulant formulations. Its high solubility (>99%) and stable liquid form make it suitable for foliar application, fertigation, and mixing applications.

Thanks to the natural alginic acid fractions, the extract also has mild chelating properties, which can support micronutrient availability in combined formulations.

Technical Product Features

• Form: liquid extract
• Color: olive green
• pH (20°C): 4.0 ? 4.5
• Total dissolved solids: approx. 65 g/L
• Organic matter: approx. 5.2% (w/w)
• Total Organic Carbon (TOC): approx. 3.6% (w/w)
• Free amino acids: approx. 0.65% (w/w)

Disclaimer: Liquid seaweed extract is a natural product. Composition and analytical values may vary per batch, harvest period, and origin of the seaweed.