Sea2Soil for Potatoes
Apply early in spring to boost soil biology and support fast-growing potato crops when nutrient demand is rising.
- Approved soil improver for use across organic, regenerative, and conventional systems
- Can be applied directly to soil or as a foliar spray (after dilution)
- Compatible with many plant protection products (with guidance and a simple bucket test)
Outstanding Nutrition for Potatoes
Helping establish a strong foundation for your potato nutrition plan starts in the soil.
Sea2Soil is a cold-processed fish hydrolysate soil improver that supports both the soil microbiome and the crop directly. Rich in naturally balanced amino acids and fatty acids, it also contains essential nutrients such as nitrogen, phosphorus, and potassium, alongside bioavailable micronutrients including calcium, magnesium, and other trace elements.
Why potato growers use Sea2Soil
Supports soil biology and nutrient cycling
Sea2Soil provides a highly nutritious food source for soil microorganisms. Beneficial soil bacteria help convert nutrients into forms readily available to the plant — supporting more efficient crop function and growth.
Strong nutritional base
Sea2Soil contains essential nutrients and bioavailable trace elements, helping boost and replenish soil nutrient content and support optimal plant health and growth.
Best used early when the crop is establishing
In all crops, it is better to apply Sea2Soil early while the crop is young and first establishing. This optimises soil health benefits and gives maximum advantage when crops really need it.
Convenient, versatile application
Sea2Soil is easy to apply and compatible with many plant protection products for added convenience.
Recommended use rates and timing for potatoes
Spring provides an ideal time to boost soil health and optimise early crop nutrition in newly growing crops. This process can take time depending on soil conditions (for example, temperature and moisture), so earlier applications help maximise benefit.
Potatoes
Spray 10 L/ha (soil applied) pre-emergence, or as soon after drilling as possible. Follow up with up to 10 L/ha in late spring.
Contact the team if you’d like help sense-checking timings against drilling date and your late-spring programme.
Foliar Application
5 to 10 L/ha
*Multiple applications can be made in the season — up to 6 times a year.
Direct Soil Application
10 to 20 L/ha
Recommended Dilution
1:250 in 100-200L/ha water
How Sea2Soil supports soil and potato crop function
Fish hydrolysate can be utilised by the soil microbiome and the crop directly. Sea2Soil supports beneficial soil bacteria that convert nutrients into a form readily available to the plant, helping crops function and grow more efficiently.
Sea2Soil contains a full range of naturally balanced amino acids. L-amino acids can be taken up by the plant directly for protein synthesis, while D-amino acids support soil bacteria and soil health.
Application methods and practical guidance
Sea2Soil can be applied (after dilution) in different ways: directly to the soil, as a foliar spray, or through irrigation systems.
Suitable Irrigation Systems
- Direct-to-soil application methods
- Drill-mounted liquid fertiliser applicators
- Fertiliser streamers
- Foliar application methods
- Standard hydraulic crop sprayers
- ‘Tow & fert’ type systems (for applying with other fertilisers or plant protection products)
Filtration / equipment
Filtration and sprayer care: Sea2Soil is pre-screened (filtered) to 100 μm but may contain larger particles. Screening is recommended prior to application through fine filters, and filters within the equipment should be thoroughly cleaned after each use.
Important note
Always seek advice from your agronomist before applying Sea2Soil for use in organic production. Not to be applied to any edible parts of crops.
Tank Mix Compatibility
Sea2Soil is compatible with a wide range of products, including certain fungicides, herbicides, and PGRs.
When tank-mixed with herbicides in foliar applications, the fish oil content acts as a natural surfactant, which can enhance spraying performance.
For full details on the latest compatibility testing, please contact us. It is advisable to complete a simple compatibility bucket test before mixing in the sprayer tank.
For more specific guidance, don’t hesitate to contact the team.
Product composition: outstanding nutrition for potatoes
Sea2Soil typically provides the following nutrients per application.
Top-line Composition
Amino Acid Content
25-30%
Fatty Acid Content
5-8%
Dry Matter Content
45-50%
pH
3.5-4.5
*Analysis may vary due to the organic nature of the product.
Feed you soil, feed your crops
- N
5% - P
0.7% - K
0.6% - C
27% - Ca
0.6% - S
0.4% - Mg
0.1% - 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
All the amino acids your crops need
Sea2Soil contains all 20 amino acids needed for protein synthesis (in L and D forms). Typical values (%).
- Alanine
1.55 - Arginine
1.3 - Aspartic acid
2.13 - Glutamic acid
2.85 - Glycine
1.62 - Histidine
0.57 - Hydroxyproline
0.32 - Isoleucine
1.00 - Leucine
1.67 - Lysine
1.81 - Ornithine
<0.05 - Phenylalanine
0.94 - Proline
1.02 - Serine
0.88 - Threonine
0.98 - Tyrosine
0.58 - Valine
1.21 - Cysteine & Cystine
0.14 - Methionine
0.64
Typical Composition Table
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)
Amino acids
Sea2Soil contains all 20 amino acids needed for protein synthesis (in L and D forms).
Typical values (%):
- Alanine 1.55
- Arginine 1.3
- Aspartic acid 2.13
- Cysteine & Cystine 0.14
- Glutamic acid 2.85
- Glycine 1.62
- Histidine 0.57
- Hydroxyproline 0.32
- Isoleucine 1.00
- Leucine 1.67
- Methionine 0.64
- Ornithine <0.05
- Phenylalanine 0.94
- Proline 1.02
- Serine 0.88
- Threonine 0.98
- Tyrosine 0.58
- Valine 1.21
*Analysis may vary due to the organic nature of the product.
Based on phytotoxicity testing, where no phytotoxicity was shown at 64 L/ha rates.
Ask Us A Question
Ask us anything about our product, or how it supports the growth of cereals. We’ll get back to you as quickly as we can.
By submitting a question, you are agreeing that Sea2Soil will contact you directly with the details provided. Sea2Soil will not share your data with any 3rd party outside the Pelagia Group.
Frequently Asked Questions From Potato Growers
Sea2Soil is compatible with a wide range of products, including certain fungicides, herbicides, and PGRs. Always do a simple bucket test and contact us for the latest compatibility guidance.
Sea2Soil is filtered to 100 μm but may contain larger particles. Screening prior to fine filters is recommended, and filters should be cleaned thoroughly after use.
Typical programmes include a ten L/ha application pre-emergence (or as soon after drilling as possible), with follow-up applications at key growth stages (for example, four to six leaves in autumn, then before stem elongation in spring for winter crops).
Spring is an ideal time to boost soil health and optimise early crop nutrition. Apply early while the crop is young and establishing.
If these don’t answer your question, talk to the team to ask your own question directly.
Ready to order Sea2Soil for potatoes?
Liz Brown
Product Manager,
Sea2Soil
Tell us what you’re growing, when you drilled, and whether you’re applying foliar or direct-to-soil — and we’ll help confirm the best timing and rate for your field and programme.
Contact the team to place an order and find out more.