The market LEADING Soil Improver based on
FISH hydrolysate

Before use, complete a jar test for compatibility and test on a small area first. While Sea2Soil is compatible with most commonly used tank mixes, it’s always best to check compatibility first, especially as ingredient formulations can change. Contact the Sea2Soil team if you have questions about specific products.

Yes. Sea2Soil is a liquid product which works in standard farm sprayers. There are two main ways to use the product: Direct to soil application – common methods include drill-mounted liquid fertiliser applicators at establishment (in spring or autumn) and fertiliser streamers, direct to soil. Foliar application – using a standard crop sprayer, applied with other foliar applications or PPPs. When tank-mixed with herbicides in foliar applications, the fish oil content in Sea2Soil helps act as a natural surfactant, which can enhance spraying performance. The product is pre-screened (filtered) to 100 μm. Thoroughly clean any filters within your equipment after each use.

Sea2Soil cannot be applied to any edible part of the plant. If applied to grass, a withdrawal period of 21 days is required before grazing animals are turned out onto the pasture.

Yes. Grant James and the Sea2Soil team are available for farm visits to discuss how Sea2Soil can fit into your farming system. Contact Grant to arrange a visit.

Yes, Sea2Soil can be mixed with certain liquid fertilisers. We always recommend a simple bucket test before tank mixing, especially as frequent ingredient changes occur with a number of different liquid fertilisers. Sea2Soil is also currently working on further tank mix compatibility testing with a broader range of liquid fertilisers to expand the approved list.

Yes, Sea2Soil is compatible in tank mix with a number of fungicides. Sea2Soil conducts compatibility testing work each year with Eurofins to broaden our compatibility checks and approved listing.

Yes, Sea2Soil is excellent for Sugar Beet. We recommend a soil application at drilling (10-20 L/ha) to stimulate soil biology around the seed. Follow this with foliar applications at the 4-6 leaf stage and again at row closure/canopy expansion. This helps maintain green leaf area and drives sugar production.

Yes. Scope 3 emissions are becoming a major topic for supply chains (e.g., millers and supermarkets). Synthetic nitrogen is usually the biggest carbon cost on an arable farm. By using Sea2Soil to improve efficiency and reduce your synthetic N rates by 20-30%, you significantly lower your crop's carbon footprint. Plus, the increase in Soil Organic Carbon (1.2% increase seen in trials) counts as active sequestration.

Yes. We encourage it! Sea2Soil offers valuable flexibility for growers and fits in well with all farming systems. It is approved for use across conventional and organic situations to improve your soils and promote natural, sustainable crop growth. It is also ideal for modern regenerative and minimal cultivation farming techniques being adopted by a growing number of farms today.

Yes. Following the extreme wet winters of 2024/25, many crops suffered from anaerobic soil conditions and poor rooting. Sea2Soil is an excellent recovery tool because it provides immediate, foliar-absorbed amino acids that the plant doesn't need to expend energy to synthesize. This "free energy" helps the crop restart root growth and overcome the stress of waterlogging much faster than synthetic nitrogen alone.

Yes. Several farmers have reported improved crop resilience during dry conditions. John Mackay in Caithness noted: “Our crops held their colour, rooted well, and bulked up nicely - even through dry spells.” This demonstrates how Sea2Soil can be used practically to improve overall crop resilience in a changing climate, especially in drier seasons. The improved soil biology and structure help soils retain moisture and release nutrients more effectively, even under stress conditions.

Sea2Soil is a powerful tool for reducing synthetic inputs, but we rarely suggest going "cold turkey" immediately unless you are already in a fully organic system. Most farmers use Sea2Soil to improve Nitrogen Use Efficiency (NUE), allowing them to dial back synthetic nitrogen by 20-30% while maintaining yields. It acts as a bridge, rebuilding the soil's natural ability to cycle nutrients so you can reduce synthetics over time.

Because Sea2Soil is made from farmed salmon (which are fed a controlled diet) rather than wild bottom-feeding fish, it has exceptionally low levels of heavy metals, well below all safety limits for agricultural application. Regular batch analysis ensures consistency and safety.

Sea2Soil is a cold-processed hydrolysate, not a heated emulsion. While it does have a distinct fish aroma, it is significantly less pungent than traditional heat-treated fish fertilisers. The smell dissipates rapidly after application (usually within a few hours). However, we recommend avoiding application on windy days near sensitive areas (like housing) just to be considerate.

Absolutely. In fact, it's often more effective in these systems. In a no-till system, you rely on earthworms to do your cultivation. University of Nottingham trials showed a 5x increase in earthworm populations with Sea2Soil. Applying it down the spout or as a foliar spray in a direct-drill system ensures that the biology is there to digest the crop residue and turn it into available nutrients for the next crop.

Sea2Soil is an ideal tool to support several SFI actions, particularly SAM1 (Assess soil, test organic matter) and IPM1 (Integrated Pest Management). By building soil health and increasing earthworm counts, you are directly hitting the physical metrics SFI rewards. Furthermore, by using Sea2Soil to improve plant health and reduce reliance on insecticides (by increasing Brix levels), you align your farm with the "nature-friendly" goals of the incentive.

The key difference is the processing temperature. Fish *Emulsions* are typically cooked at high heat to remove oil (sold separately), which denatures the proteins and kills beneficial enzymes. Sea2Soil is a *Hydrolysate*, made using a cold-process enzymatic breakdown. This preserves the natural oils, vitamins, enzymes, and proteins in their raw, bio-available form, making it a far superior food source for soil biology.

Sea2Soil is a soil improver based on fish hydrolysate, which makes it unique and differentiates it from many other products available in the market. Sea2Soil conditions soils, improves soil health and promotes plant growth, feeding crops more efficiently to help them reach their full potential. Sea2Soil was the UK’s first soil improver based on fish hydrolysate and is a market leader in this technology sector in agriculture.

As of 2025, enforcement on "evidence-based nutrient planning" has tightened. Sea2Soil helps you comply by improving your Nitrogen Use Efficiency (NUE). Because it contains organic nitrogen and amino acids rather than just soluble nitrates, it is less prone to leaching. Using Sea2Soil allows you to lower your total synthetic nitrogen application while maintaining yield, which demonstrates responsible nutrient planning to inspectors.

Sea2Soil fish hydrolysate, as a naturally high source of protein and carbohydrate, provides an ideal food source for soil biology. By feeding the beneficial underground livestock in the soil – the bacteria and fungi – these, in turn, help with the mobilisation of vital trace minerals. Sea2Soil can be utilised by both the soil microbiome and the plant directly and contains a full range of naturally balanced amino acids and fatty acids that support microbial growth and activity.

Sea2Soil helps to boost and replenish the nutrient content in the soil, promoting plant health and optimal crop growth. Plants cannot function and grow efficiently without the assistance of beneficial soil bacteria and fungi. Sea2Soil provides vital nutrients to boost soil microbial activity and soil health. Sea2Soil is naturally high in fat and promotes the growth of fungi, which are hugely important in soil root systems, performing important functions within the soil: nutrient cycling, disease suppression and water dynamics. The improved microbial populations also feed secondary and higher-level consumers like protozoa, nematodes, and earthworms, which work to improve soil structure by aerating the soil, leading to better root development and a reduction in abiotic stress. These macro-organisms also contribute to improved nutrient availability in the soil through excretion, providing additional bioavailable nutrients to the growing plant. Sea2Soil promotes a biologically active soil, fostering beneficial microorganisms and earthworms. This can help soils have better aeration, retain moisture and release nutrients in a bioavailable form to plants, increase stress tolerance and promote better, healthy crop growth.

Sea2Soil is delivered on farm in IBC containers, bulk delivery, and 25kg tubs, depending on your requirements.

Multiple Sea2Soil foliar applications of 5-10 L/ha can be made in the season up to 3-6 times a year. Terrafarmer trials work is showing that a ‘little but often’ approach to applications can work well too, in many grassland situations. Application should be timed to work around grazing cycles: 20 to 30 days is generally about right. However, little and often is always better.

From research worldwide, many farmers have comfortably reduced nitrogen inputs by 20–30%, with pasture systems sometimes cutting their inputs by up to 50%. The key is replacing reactive inorganic nitrogen with more stable, carbon-based organic forms. These not only reduce losses to leaching and off-gassing but also improve nitrogen use efficiency, allowing plants to produce more biomass per unit of input. In the Terrafarmer trials, for a grass-based, multicut system using 250kg/ha of nitrogen, using foliar nitrogen plus biologicals (molasses + Sea2Soil) delivered a cost of £110/ha compared to £115/ha for standard urea application – a saving of £5/ha whilst reducing nitrogen use by 20% and feeding the soil.

Foliar application: 5-10 L/ha (applied 2-6 times a year). Direct soil application: 10-20 L/ha. Recommended dilution: 1:250. Multiple applications can be made during the growing season.

While some visual improvements in crop health and colour can be seen relatively quickly, rebuilding soil takes time. Farmers may see measurable changes within 3–5 years, but regeneration is a lifelong process of continual improvement. Inputs like Sea2Soil can help speed up the transition, but ultimately it’s about balancing nutrient offtake with sustainable inputs, while unlocking the reserves already stored in the soil.

We’re here to help you get started with Sea2Soil. Whether you’re ready to introduce the product on your farm or want to discuss how it fits into your farming system, get in touch. Contact Grant James, Business Development Manager: E: grant.james@pelagia.com T: 07976 879646

Yes. The "wet winter / dry spring" cycle is becoming a common challenge. Sea2Soil helps buffer against this by building soil aggregation. The fungal stimulation from the fish oils helps glue soil particles together, improving water infiltration when it rains and water retention when it's dry. Additionally, the amino acid 'Proline' (found in Sea2Soil) is specifically known to help plants regulate water and survive drought stress.

No product is a "silver bullet," but Sea2Soil is a catalyst. In 2025, with the launch of the "Regenerative Farmer of the Year" awards, interest in regen is high. Sea2Soil speeds up the transition by jump-starting the soil biology that tillage and synthetics have suppressed. It helps you "earn the right" to reduce inputs by building the biological fertility required to sustain yields without high chemical support.

Yes. With European registration now secured, Sea2Soil is set to support growers across Europe in 2026, helping farmers battle changing climatic conditions with drought and excess rainfall while building long-term soil stability.

Seaweed and Fish Hydrolysate do different jobs and actually work brilliantly together. Seaweed is primarily a biostimulant rich in hormones (cytokinins) to reduce plant stress. Sea2Soil is a *nutritional soil improver*—it provides the actual proteins, amino acids, and fatty acids to feed the soil biology and the plant. For the best regenerative results, we often recommend using them in a program together.

Yes. Sea2Soil is the UK’s first liquid fish hydrolysate approved by the Animal & Plant Health Agency (APHA) and The Soil Association. Sea2Soil also has full organic accreditation with the Organic Farmers & Growers C.I.C., as well as OF/SI Approval from the Scottish Government (which classifies Sea2Soil as an Organic Fertiliser/Soil Improver). Sea2Soil’s existing organic use status with the UK Soil Association and Organic Farmers & Growers as a certified product allows for use in both their approved input schemes run in the UK. Always seek advice from your agronomist before using and applying Sea2Soil for use in organic production. Not to be applied to any edible parts of plants. Following application, an interval of at least 21 days must be observed before animals are permitted to graze the land or before crops/herbage are harvested.

Yes, Sea2Soil is compatible in tank mix with a wide range of plant protection products, including a number of herbicides. Sea2Soil conducts compatibility testing work each year with Eurofins to broaden our compatibility checks and approved listing. When tank-mixed with herbicides in foliar applications, the fish oil content in Sea2Soil helps act as a natural surfactant, which can enhance spraying performance. Farmer Paul Davey, noted: “I recently started using Sea2Soil when I apply my herbicides. Doing this, I noticed that my crops didn’t show the same level of stress. The science behind this observation was confirmed by Joel Williams, when he explained that the plant utilises the free amino acids provided by Sea2Soil to counter the potential harmful effects of the herbicide.”

Yes, Sea2Soil is a natural product and is not toxic to wildlife or pets. However, because it smells like fish, dogs may be tempted to roll in it or drink it! We recommend keeping pets away during application and until the product has dried or been absorbed into the soil. As per organic standards, keep livestock off treated pasture for 21 days.

Yes. While temperature is an important consideration, UV index and humidity should be considered first when applying biological fertilisers and foliar applications. When you have a high UV index, the plant is conserving moisture, and it’s not going to want to take in any nutrition. So the biological fertiliser or soluble nitrogen will sit on the leaf and can scorch or burn it, particularly if you’ve got urea in there. It’s best to apply these when the UV index is low and the humidity is high. Humidity means moisture, and that means stomata are open to take in these products.

Yes, we always recommend completing a jar test for compatibility before tank mixing, and testing on a small area first before treating larger areas.

Yes, Sea2Soil is compatible in tank mix with a number of PGRs (plant growth regulators). Sea2Soil conducts compatibility testing work each year with Eurofins to broaden our compatibility checks and approved listing.

Sea2Soil contains a full range of 20 naturally balanced amino acids (in both L and D forms), with a total amino acid content of 25-30%. The amino acid profile includes: Alanine: 2.0%, Arginine: 1.6%, Aspartic: 2.8%, Glutamic: 3.7%, Glycine: 2.1%, Histidine: 0.7%, Hydroxyproline: 0.3%, Isoleucine: 1.3%, Leucine: 2.1%, Lysine: 2.3%, Phenylalanine: 1.2%, Proline: 1.3%, Serine: 1.2%, Threonine: 1.3%, Tyrosine: 0.9%, Valine: 1.6%, Cysteine: 0.2%, Methionine: 0.8%

IBC containers, bulk delivery, and 25kg tubs are all available.

Sea2Soil is approved for use on cereals, oilseed rape, linseed, potatoes, pulses, field vegetables, maize, grassland and agro-forestry. For further information on any crops not listed, please contact Grant James at grant.james@pelagia.com or call 07976 879646.

University of Nottingham Research showed: 5x increase in earthworm populations (9.0 vs 1.6 per pit); 35.8% increase in soil organic matter (9.1% vs 6.7%); 1.2% increase in soil carbon content (4.65% vs 3.45%); Significant improvements in pH, moisture, and porosity. The Terrafarmer trials also showed Sea2Soil ranked in the top three out of all treatments for improving microbial biomass in mid-season assessments. Soil, leaf, and forage tests show more trace minerals (boron, manganese, magnesium) becoming readily plant-available, moving from the soil into the leaf and therefore into the forage.

Independent research trials and farm-scale trials using Sea2Soil began in 2020 across the UK. Major trials include: Terrafarmer Grassland Trials (2024-2025): Innovate UK-funded research across seven working farms testing seven biological products; Claydon Farms Arable Trials (2024-2025): Two years of ongoing trials at Wickhambrook, Suffolk; University of Nottingham Research (2024-2025): Phase 2 research assessing soil health and carbon footprint impacts; NIAB trials: Testing across wheat, barley, oilseed rape, oats and beans; Waitrose & Partners Farms: Trials in winter wheat and oilseed rape; Eurofins Compatibility Testing: Ongoing tank mix compatibility work across multiple crops

Hydrolysation is the process of breaking down complex proteins into their component amino acids. These can then be utilised by both the soil microbiome and the plant directly. Fish hydrolysate contains a full range of naturally balanced amino acids and fatty acids. Rich in essential nutrients such as nitrogen, phosphorus and potassium, it also provides important micronutrients like calcium, magnesium and other trace elements in a bioavailable formulation, establishing a good basis for any crop nutritional plan. Fish hydrolysate utilises recycled by-products of the aquaculture industry that would otherwise go to waste. Sea2Soil is packed with vital nutrients and amino acids derived from its fish oil content, providing a real health boost for soils and crops.

Maize responds very well to the amino acids and phosphate availability from Sea2Soil. Apply 10-20 L/ha down the spout or incorporated at drilling to kickstart rooting. A follow-up foliar spray at the 4-8 leaf stage (V4-V8) helps the crop through its rapid growth phase, mitigating stress from heat or herbicide applications.

Sea2Soil is stable and has a shelf life of up to 2 years when stored correctly. It should be stored in a cool, dry place out of direct sunlight. While the product is stable, we recommend protecting IBCs from severe frost to maintain optimal consistency. Ensure lids are kept tight to prevent contamination.

Each application typically provides: Amino acid content: 25-30% (composed of 20 amino acids in both L and D forms); Fatty acid content: 5-8%; Dry matter content: 45-50%; Macronutrients: N: 5%, P: 0.7%, K: 0.6%, C: 27%, Ca: 0.6%, S: 0.4%, Mg: 0.1%; Micronutrients: B: trace, Cl: 8850ppm, Co: trace, Cu: 4ppm, Fe: 190ppm, Mn: 4ppm, Mo: 0.1ppm, Na: 5630ppm, Ni: trace, Se: 1ppm, Si: trace, Zn: 60ppm; pH: 3.5-4.5. Analysis may vary due to the organic nature of the product

Sea2Soil provides important micronutrients, including boron (B), chlorine (Cl), cobalt (Co), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), sodium (Na), nickel (Ni), selenium (Se), silicon (Si), and zinc (Zn) in bioavailable form. These trace elements become more readily plant-available as soil biology improves, moving from the soil into the leaf and therefore into the crop or forage.

Sea2Soil is a natural product containing fish oils and proteins, so some minor settling or separation can occur over time. This is normal. We recommend recirculating or agitating the IBC before use (e.g., using a pump or stirring) to ensure a consistent mixture. If using 25kg cans, a vigorous shake before pouring is sufficient.

Early in the morning is a good time, because that’s when the stomata are open. In the morning, especially, the plant will not be overly stressed, so it is better at taking in the product, leading to greater efficiencies. Late at night can also work well for foliar applications.

Sea2Soil has flexible application timings for ease of use. In the autumn, we recommend applying early, around drilling or pre-drilling, to help get the soil micro-organisms going as soon as possible. A split application approach (autumn followed by early spring) has been found to be most effective. Winter cereals: Apply Sea2Soil at 10 L/ha pre-emergence, or as soon after drilling as possible. Follow up with 10 L/ha in early spring, as you can travel, or to coincide with an early spring herbicide or T0 fungicide application. It is better to spray while the crop leaf area is still small. Winter oilseed rape: Apply Sea2Soil at 10 L/ha pre-emergence, or soon after drilling. Follow up with 5 L/ha in autumn (at 4-6 leaves), then a further 5 L/ha in spring before stem elongation. Alternatively, if the autumn application is missed, follow up with 10 L/ha in early spring. Spring cereals, potatoes, pulses, maize, new grass leys: Spray 10 L/ha pre-emergence, or soon after drilling and follow up with 5 or 10 L/ha later in spring (before stem elongation in cereals). Grassland: Apply 10 L/ha before active spring growth, with a follow-up application in May at 5-10 L/ha. Multiple applications, 3-6 times per year, work well.

Buy from Sea2Soil and contact Grant James directly: E: grant.james@pelagia.com T: 07976 879646 Or call: 01472 263 333. Or, you can buy through our distribution partners below: Agrovista, Agrii, Aiva, Cefetra

Trial results are published on the Sea2Soil website in the Resources and Articles sections. You can also access detailed trial data through our annual reports and by contacting Grant James directly.

Our research, trials and soil consultancy partners include Eurofins, NIAB, The University of Nottingham, TerraFarmer, Claydon Drills, Waitrose Farms, Soil First Farming, and BASE UK, among others.

Sea2Soil is unique because it retains the fish oils (fatty acids). Fungi in the soil love fatty acids—it is their preferred food source. By applying Sea2Soil, you are specifically stimulating the *fungal* component of your soil microbiome. A higher fungal-to-bacterial ratio is a key indicator of healthy, regenerative soil that cycles carbon and builds structure efficiently.

In his recent 2025 nitrogen workshops, plant nutrition expert Joel Williams highlights that mixing a carbon source (like fish hydrolysate) with foliar urea buffers the leaf against scorch and improves uptake. The carbon acts as a "chaperone," helping the nitrogen enter the plant more efficiently. Sea2Soil is the perfect carbon partner for this tank mix, allowing you to lower your nitrogen rates while keeping the crop green.

Sea2Soil has been tested and proven under real farm conditions for several years. Many growers using the product have reported yield increases (c.5%+) in their crops, and most have also reported improved soil health, often reflected in better biological activity, including increased earthworm numbers and activity. Independent research trials and farm scale trials using Sea2Soil began in 2020 across the UK on various crops including wheat, barley, oilseed rape, oats and beans. The results found have been very positive, with crop yields either maintained or increased across our trial work. For example, Claydon Farms Arable Trials showed a 4% yield increase in winter wheat (2024 season) and a 20% increase in tiller counts in spring oats (statistically significant, 2025 season).

Yes. Grassland trials conducted by research partners in new grassland pastures and herbal leys have shown beneficial improvements and increases in sugar content from Brix tests conducted on Sea2Soil-treated grassland compared to non-treated areas. In the Terrafarmer trials, out of seven biological products tested, Sea2Soil ranked number one for crude protein improvement, delivering 136.225 g/kg compared to all other products and the control treatment.

No, provided standard filtration is used. Sea2Soil is filtered to 100 microns (μm) during production. We recommend using standard blue or red nozzles (03 or 04). If using finer misting nozzles, ensure your sprayer filters are clean. As with all natural products, we recommend flushing the sprayer lines with clean water immediately after finishing the job to prevent residue drying in the lines.