Unlocking the potential of crops with our unique range of seaweed extracts

Innovative Biofertiliser extracts for the agricultural, horticultural, and amenity markets

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Harvesting the potential of seaweed

The majority of our seaweed extracts are manufactured by producers based in the UK. Find out how seaweed is harvested and the bioactive components are carefully extracted.

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How our products are used

Seaweed extracts are used across a broad range of agricultural crops worldwide. They are particularly useful where the crop is under stress due to poor soil conditions, drought or extremes of temperature.

In potatoes, SeaFol is used to extend the bulking period and to improve tuber yield and dry matter content. In sugar beet, SeaFol promotes vigorous seedling establishment better able to withstand stresses that may cause bolting mid summer.

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The potential of seaweed

Our seaweed extract is manufactured using sustainably harvested Ascophyllum nodosum, a slow-growing, large, brown macroalgae found in the sheltered, rocky shores and pristine waters of the Irish North Atlantic coast.

CroptekBio is the largest producer of seaweed extracts in the UK. Find out how we harvest our seaweed and carefully extract the maximum available bioactive components.

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Horticultural support

Seaweed extracts are widely used in the horticultural sector as plant biostimulants. Known for their growth promoting effects, they can also aid tolerance to the stresses of drought, nutrient deficiency and extremes of temperature.

Seaweed extracts have an important role in enhancing soil health by stimulating soil microbes resulting in greater root activity. The stronger the root, the better the plant is able to withstand stresses caused by drought and pathogens.

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See how we can help

CroptekBio products are used across a wide range of market sectors, whether you’re looking to improve yields,
or improving soil and turf growth we can help.

Agriculture

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Agriculture

Improving agronomic performance in farming environments worldwide

Our suppliers seaweed biostimulants are used worldwide, to promote growth, boost yields and improve plant resilience in all kinds of farming environments. Learn More

Organics

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Organics

Our biostimulant products are the perfect fit for organic farming systems, whether for farmers or horticulturalists.

What’s more, our suppliers products are recognised by organic produce certifying bodies including the Soil Association. Learn More

Turf & Amenity

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Turf & Amenity

Need to maintain a well-used sports field, or pristine golf course? Our suppliers seaweed extracts can alleviate the effects of heavy use, regular mowing and the resulting deteriorating turf quality.

It’s the perfect aid for green keepers and groundsmen, looking for a natural, effective way to get the best of turf grass throughout an entire season. Learn More

Horticulture

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Horticulture

With biostimulants and bionutrients, horticulturalists can enhance soil health, strengthen roots and improve resistance to pests and disease. This is particularly useful for high-value crops and fruit. Find out more. Learn More

The potential of seaweed

See how Croptek Bio have helped Growers Direct increase their yields through the introduction of Seaweed.

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Latest news

The latest news and research from the team at CroptekBio.

28th May 2025

Why British Seaweed Extract Should Be Every Farmer’s First Choice

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16th April 2025

Field‑Proven Trials Reveal Big Yield Gains with Seaweed Biostimulants

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10th May 2024

Exciting Trial Results: Croptek Bio’s Seaweed Biostimulants Enhance 2023 Potato Yields

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