Agrology Success Stories: Protonic Vortex® – Yield Increase in Potato (Var. Soprano)

Through Agrology Success Stories in Greece and Abroad, it is proven that the superior quality and integrated innovative technologies of Agrology’s Functional Crop Nutrition® products, make a difference in crops from the very first applications!

Our goal is to demonstrate that application programs with Agrology’s Functional Crop Nutrition® products are an obvious investment for producers, as the financial benefits exceed the cost of supplemental applications!

One such Success Story was carried out on Potato, var. Soprano (SS 2025_203_GR) in Euboea, in collaboration with the agricultural store “Gkikas Nikolaos”, in 2025. Throughout the process, the farmer benefited from the continuous guidance and support offered by Agrology’s Technical Department and the collaborating agricultural store.

The field was divided into two plots, one was used as the Control, while Agrology’s Program was applied to the other plot. In both plots, the farmer used the same plant protection and plant nutrition-fertilization program, apart from the additional applications with Agrology’s Functional Crop Nutrition® products.

Identity of Success Story

Partner: Gkikas Nikolaos

Farmer: Spiros Gounaris

Location: Vatontas, Euboea

Cultivation Season: 2025

Cultivation: Potato, var. Soprano

Success Story area: 0.5 + 0.5 ha (Agrology + Control)

Plant protection: Same for the entire area

Irrigation: Sprinklers

Success Story Goals

By applying Agrology’s Functional Crop Nutrition® products during specific growth stages, the farmer can achieve significant agronomic benefits for the crop.

The main Objectives of this Success Story were as follows:

  • Potato Tuber Size and Weight Increase
  • Total Yield Increase

Agrology Functional Crop Nutrition® Program Potato, var. Soprano

Picture 1. AGROLOGY Functional Crop Nutrition® Program

Functional Crop Nutrition® Program – Agrology Supplementary Applications

Functional Crop Nutrition® Products

protonic vortex bio logo

Formulation of high biostimulating potential of 12% algae extracts of Laminaria digitata and Ascophyllum nodosum. Enriched with a 10% mixture of 20 biologically active L-amino acids of enzymatic hydrolysis and 21% mixture of Organic Prebiotics of short chain carbohydrates and Carboxylic Acids. Enhanced with 57% refined Leonardite extract, natural Fulvic: Humic acid ratio 30:70 and Iron (Fe, EDDHA), Molybdenum (Mo) and Cobalt (Co).

  • Enhancement of plant resistance to abiotic stress
  • Improvement of soil structure, aeration, and water-holding capacity
  • Enhancement of nutrient uptake and utilization
  • Increase in total yield

Application timing:

  • Initiation of tuberization
  • Onset of tuber development

Recommended Dosage

  • Fertigation – 20 L/ha

Success Stories Results

Measurements on both plots revealed impressive results in the Agrology treatment. Specifically, the results were as follows:

1. Vegetative Development Enhancement

Field Trial. Agrology Program (right), Control (left).
Picture 2. Field Trial​. Agrology Program (right), Control (left). Picture taken on 23/04/2025 (~ 75-80 Days After Planting) ​

2. Tuber Weight Increase

Tuber Weight Increase: +21.3 g/tuber or 9%

  • Agrology: 258.5 g
  • Control: 237.2 g
Increase in Tuber Weight of 9%
Picture 3. Tuber Weight (g). With the application of Agrology Program, an increase in Tuber Weight of 9% (+21.3 g) was achieved compared to the control.
Average Tuber Weight – 15 tubers (g). Increase of 277g
Picture 4. Average Tuber Weight – 15 tubers (g). With the application of Agrology Program, an increase of 277 g in the average tuber weight was achieved compared to Control. Photo taken on May 19, the harvest day in Agrology treatment.

3. Tuber Size Increase

A) Increase in Vertical Tuber Diameter (cm): +6.4% (+0.7 cm)

  • Agrology: 11.6 cm​
  • Control: 10.9 cm
Picture 5. Tuber Size (cm) – Vertical Diameter. With the application of Agrology Program, an increase in Tuber Size (Vertical Diameter) of 6.4% (+0.7 cm) was achieved compared to the control.

B) Increase in Horizontal Tuber Diameter (cm): +12.1% (+0.7 cm)

  • Agrology: 6.5 cm​
  • Control: 5.8 cm
Picture 6. Tuber Size (cm) – Horizontal Diameter. With the application of Agrology Program, an increase in Tuber Size (Horizontal Diameter) of 12.1% (+0.7 cm) was achieved compared to the control.

Tuber-Size.-Agrology-Program-right-Control-left
Picture 7. Tuber Size​. Agrology Program (right), Control (left). Picture taken on: 05/05/2025 (~ 90-95 Days After Planting) 

4. Total Yield Increase

Total Yield Increase: +5.5 t/ha or 11.6%

  • Agrology: 53 t/ha
  • Control: 47.5 t/ha
Picture 8. Total Yield (t/ha). With the application of Agrology Program, an increase in Total Yield of 11.6% (+5.5 t/ha) was achieved compared to the control.

Notes

*The harvest of the Control treatment was carried out approximately 20 days after the harvest of the Agrology treatment, for commercial distribution reasons.

**During this 20-day period, the tubers increased in weight (additional accumulation of water and dry matter); therefore, if the harvests had taken place on the same day, the difference in total yield would have been even greater.

Results Synopsis

Results Synopsis of Success story - Protonic Vortex: Yield Increase in Potato (Var. Soprano)
Picture 9. Results Synopsis

Farmer’s Financial Benefit

Revenue from the sale of potatoes 2750€/ha
Picture 10. Investment – Farmer’s Benefit (Average price: 0.5 €/Kg)

Revenue from the sale of Potatoes 2200€/ha
Picture 11. Investment – Farmer’s Benefit (Average price: 0.4 €/Kg)

Revenue from the sale of potatoes 1650€/ha
Picture 12. Investment – Farmer’s Benefit (Average price: 0.3 €/Kg)

Obtain detailed information on Agrology’s Functional Crop Nutrition® Programs by the specialized staff of Agrology.

For further information, please contact us at: global@agrology.eu

“This experiment was conducted under specific field conditions and should not be applied as a standard without the guidance of an Agronomist or the Agrology Technical Department. In any case, Agrology Functional Crop Nutrition® products and programs must be applied according to the label or the instructions of the technician-agronomists.”