Home > Maximize every hectare with EliSun-a

Maximize every hectare with EliSun-a

+190 kg/ha on average, up to +900 kg/ha

The multi-awarded sunflower biostimulant that helps your crop perform better under water stress conditions – for stronger, resilient, and more profitable plants.

Certified CE® | DE.3071 – developed in France by Elicit Plant, specialists in biosolutions for broad-acre crops.

I want to get it!

I want more info

Water management has become a key success factor in sunflower production. Periods of water stress can occur at any stage, from early vegetative growth to seed filling, reducing root activity, kernel weight, and oil concentration. Over time, these losses accumulate, resulting in yield reductions that weigh on production margins and affect the economic sustainability of the farm.

Each lost quintal affects profitability.

Yet, complex irrigation solutions or additional inputs aren’t always feasible. Farmers need a simple, preventive and performing solution that strengthens plant performance and helps each hectare express its full potential.

That’s exactly why Elicit Plant developed EliSun-a.

How EliSun-a works

EliSun-a is a phytosterol-based biostimulant that reinforces sunflower resilience by improving its ability to manage water efficiently.

Phytosterols are natural molecules that act directly on the plant’s cellular membranes and stomatal regulation, helping it maintain optimal metabolic activity even during limited water availability.

This optimization quickly turns into visible performance in the plant.

A single foliar application

For a lasting effect throughout the entire growth cycle

+38% root mass length

Less wilting (-16%) and reduced leaf yellowing

-16% wilting & lesser leaf yellowing (Stay-Green effect)

Higher number of fertilized flowers (+5%)

+5% fertilized flowers

+5% head size

In short, EliSun-a helps the plant use every drop of water more effectively, securing yield and quality across varying climatic conditions.

A question ? Talk to our agronomy experts Get personalized advice on how EliSun-a can help your sunflower crop perform better under water stress and make every hectare more profitable.

Average yield +190kg/ha
(up to +900kg/ha)

TKW up to +9%

Oil content up to +3pts

Proven agronomic benefits

Backed by more than 500 field trials conducted across Europe bewteen 2023 and 2024, EliSun-a has consistently shown strong and measurable agronomic benefits:

✅ +190 kg/ha on average, up to +900 kg/ha

Thanks to improved resilience to climatic stresses, and depending on soil and climate.

✅ +9% in thousand-kernel weight (TKW)

Linked to optimal seed filling.

✅ +3 points increase in oil content

For a higher-value harvest.

✅ ROI x2.4 : A profitable investment

With a production cost of €450/T, the return on investment is multiplied by 2.4.

EliSun-a demonstrates a significant improvement in both yield and plant balance, even in non-irrigated plots.

What farmers say about our biosolutions

“The Stay-Green effect is real: plants stay green longer, fill better, and deliver higher yields.
EliSun-a has become a key part of our performance strategy.”
– Sofia L. – Cooperative technician, Spain

“With EliSun-a, my sunflowers showed stronger resilience to heat stress – the heads were larger and more uniform. I’ve clearly seen a boost in performance across the field.”
– Jean-Marc D. – Farmer from Gers – France

“I observed a clear difference in root vigor and seed filling – EliSun-a helped my plants stay active longer.”
– Julien C. – Sunflower grower, Southwest France

Request more information

Simple and effective use – Simple and effective use – Simple and effective use –

EliSun-a fits seamlessly into existing agronomic programs.
It requires only one preventive application per cycle, ensuring simplicity and efficiency.

Dosage

1 L/ha

Timing

8–10 leaf stage (BBCH 18–20)

Number of application

Only 1 per year

Ideal conditions

No wind, Air humidity > 60%, Temperature 5-25°C

Rainfast period

2 hours after spraying

Download the Full application protocol And learn how to get the best of EliSun-a for optimal yield results.

Guaranteed reliability

EliSun-a meets all European regulatory standards for biostimulants.

It is CE-certified (DE.3071), formulated from 100% plant-based compounds, and contains no hazardous substances.

Its stable, fluid formulation is easy to handle, with no odor and no impact on beneficial organisms or soil life.

Developed and validated by Elicit Plant, a French biotechnology company recognized for its scientific excellence and commitment to sustainable agriculture.

Ready to boost your yields ?

Our agronomy experts are here to help you choose the best strategy for your sunflower fields.

More questions about EliSun-a ?

Frequently asked questions about the use of EliSun-a and its role in improving sunflower resilience to water stress and limited water availability.

1. What is EliSun-a?

EliSun-a is a biostimulant based on phytosterols, specifically developed for sunflower crops.
It helps plants manage water more efficiently and maintain physiological activity during periods of water stress, securing yield and promoting uniform head filling.

2. How does it work on the plant?

The phytosterols in EliSun-a act on water regulation and cellular functioning.
The plant reduces water loss, develops a more efficient root system, and prolongs photosynthetic activity (the Stay-Green effect).
As a result, the plant remains greener, more vigorous, and productive for a longer period.

3. What results can be expected?

Field trials have shown an average gain of +2 q/ha, and up to +9 q/ha depending on conditions.
In addition, improvements of +9% in thousand kernel weight and +3 points in oil content have been observed.
The treated crops are more uniform and balanced in their development.

4. When and how should it be applied?

Apply 1 L/ha as a preventive treatment at the 8–10 leaf stage (BBCH 18–20).
Ideal conditions: relative humidity above 60%, temperature between 5–25 °C, and low wind.
A single application per crop cycle is sufficient.

5. Is it compatible with other treatments?

Yes. EliSun-a is compatible with most fungicides and herbicides.
Avoid mixing with strongly alkaline or copper-based products.
When in doubt, conduct a compatibility test before use.

6. Does it work even without significant stress periods?

Yes. EliSun-a works preventively and improves water-use efficiency at the plant level.
Even without marked water stress, it helps achieve more consistent yields from one season to the next.

7. Is it safe for users and the environment?

✅ Not classified as hazardous and carries no risk pictograms.
🌿 100% plant-based formulation, stable and residue-free.
♻️ Recyclable packaging (5 L cans – 4 × 5 L boxes).
No known impact on beneficial fauna or soil life.

8. What return on investment can be expected?

With average yield gains of +2 to +9 q/ha, the ROI often exceeds ×3, depending on sunflower prices and growing conditions.
EliSun-a is a simple, profitable, and sustainable solution to maximize every hectare.