Nutrient use efficiency
PFC 6(B) - Non-microbial Plant Biostimulant
ProtoHumiX® – non-microbial plant biostimulant
A certified plant biostimulant supporting the natural nutrition processes of plants, efficient nutrient use, tolerance to abiotic stress and crop quality.
ProtoHumiX® is one product with two separate certified functions: soil improver and non-microbial plant biostimulant.
How does the plant biostimulant work?
ProtoHumiX® stimulates the natural nutrition processes of plants independently of its own nutrient content. The PFC 6 function is directed at improving one or more characteristics of the plant or the rhizosphere.
Tolerance to abiotic stress
Quality traits of the crop
Availability of confined nutrients in the soil or rhizosphere
Support through the key growth stages
Early development
Supports germination, early development and root formation, within the product’s substantiated claims.
Nutrient efficiency
Supports the use of nutrients present in the soil and those applied through fertilisation.
Abiotic stress
Supports natural tolerance to drought, temperature fluctuation and other unfavourable non-living factors.
Quality development
Contributes to crop development and quality traits under suitable agronomic practice.
Precise application
The active water-soluble fractions allow use through fertigation and foliar treatment with suitable equipment.
Application methods
| Method | Currently published dose | Note |
|---|---|---|
| Working solution | 500 ml in 100 l of water | 0.5% solution |
| Seed treatment | 100 ml per 100 kg of seed | Soaking for 5-6 hours, or mechanised treatment |
| Fertigation | 100 ml in 30 l of water | Root application, according to the crop and the plan |
| Foliar application | 700-800 ml, maximum 1000 ml, in 200 l of water | Confirm the area and growth stage against the label |
Use chlorine-free water. The specific dose, the area, the number of applications and compatibility with other products are set by the current label, the crop and the agronomic plan.
Where the label permits tank mixes, run a physical compatibility test first and follow the labels of all products involved.
Application by crop group
The plans currently published are below. Before applying, confirm the dose, the area and the growth stages against the current label and with an agronomist.
Field crops
- Method
- Foliar; for hemp, flax and tobacco, also seed treatment
- Growth stage
- Cereals: 4–6 leaves and before flowering. Hemp, flax and tobacco: 3–4 leaves, budding, and after 25 days.
- Dose
- Seed: 100 ml / 100 kg; foliar dose per the label
- Number of applications
- Per an individual plan
- Interval
- For hemp, flax and tobacco: final treatment after 25 days
Condition: only where the current label permits use on that crop. The area is set by the label.
Maize and sunflower
- Method
- Foliar
- Growth stage
- Maize: 4–6 leaves and cob formation. Sunflower: 4–6 leaves, before flowering, and during seed formation and ripening.
- Dose
- Per the current label
- Number of applications
- Per an individual plan
- Interval
- According to the growth stages
Condition: only where the current label permits use on that crop. The area is set by the label.
Vegetables and potatoes
- Method
- Foliar; for potatoes, tuber treatment
- Growth stage
- Vegetables: before and after transplanting, budding, 14 days after flowering, and fruiting. Potatoes: 5–7 leaves, budding, and after 25 days.
- Dose
- Tubers: 400 ml in water per 1000 kg of tubers; other doses per the label
- Number of applications
- Per an individual plan
- Interval
- Potatoes: final foliar treatment after 25 days; root vegetables: 25–30 days after the rosette forms
Condition: only where the current label permits use on that crop. The area is set by the label.
Vineyards
- Method
- Root and foliar
- Growth stage
- Foliar: bud break, after flowering, and during bunch development
- Dose
- Per the current label
- Number of applications
- Root: 1–2 times a month
- Interval
- Foliar: according to the growth stages
Condition: only where the current label permits use on that crop. The area is set by the label.
Orchard and nut crops
- Method
- Root and foliar
- Growth stage
- Bud formation, after flowering, and during fruit growth
- Dose
- Root: 5 l of working solution per tree; concentration per the label
- Number of applications
- Root: monthly
- Interval
- Foliar: according to the growth stages
Condition: only where the current label permits use on that crop. The area is set by the label.
Ornamental plants
- Method
- A plan for perennial plantings; suitability for a given species is to be confirmed with an agronomist
- Growth stage
- Before flowering
- Dose
- Published plan for perennial plantings: 50 ml in 20 l of water
- Number of applications
- A first application and 3–4 more
- Interval
- 10–14 days
Condition: only where the current label permits use on that crop. The area is set by the label.
Microgreens
- Method
- Spraying onto the seeds and sprouts
- Growth stage
- Seeds and sprouts
- Dose
- 20 ml in 10 l of water
- Number of applications
- Per the label and the growing period
- Interval
- 48 hours
Condition: only where the current label permits use on that crop. The area is set by the label.
Trials across different crops
Between 2014 and 2025, more than 30 trials were carried out across different crops and different soil and climate conditions. The results page publishes examples on wheat, triticale, potatoes and other crops.
Results depend on the crop, the soil, the climate, agronomic practice and the plan applied, and are not a guarantee of the same outcome under all conditions.
Browse the resultsCertified product function
- Category: PFC 6(B) – Non-microbial Plant Biostimulant
- CE certificate: No. CE-B/18/25/BS
- Published validity: until 30.03.2030
Frequently asked questions
Is ProtoHumiX® a fertiliser?
ProtoHumiX® is an EU fertilising product with the function of a non-microbial plant biostimulant. Its function is to stimulate the nutrition processes of plants, not to supply the bulk of the nutrients as a standard fertiliser does.
Is it applied to the leaves and to the root?
Yes. Plans for foliar treatment, fertigation and seed treatment are published on this site. The exact plan must follow the current label and the specific crop.
Can it be used in organic production?
The product has been assessed for use in organic production under the conditions of the accompanying confirmation. See the Organic farming page.
Organic farming conditionsChoose an application to suit the crop and the growth stage
Tell us the crop, the area and your preferred treatment method.
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