BASK
  • Crop farming
  • Seed potato
  • Season 2026

Seed potato harvest in a waterlogged season

A season of abnormal rainfall: fields became waterlogged and part of the harvest rotted. We tested whether the fertiliser would save the harvest with half the crop protection rate.

yield vs control
×2.5
50–55 t/ha vs 20–22 t/ha
crop protection rate
−50%
in a tank mix with the fertiliser
trial area
80 ha
two fields: 20 and 60 ha

Trial passport

The conditions under which the result was obtained. The full report is in the documents below.

Crop
Seed potato: Colombo (elite) and BP 808 (super-elite)
Area
80 ha — two production fields, 20 and 60 ha
Region
Sverdlovsk Oblast
Farm
Seed-growing farm
Season
2026 · final harvest count — 18 August
Control
Standard technology, full crop protection rate
Trial
Half crop protection rate + BASK fertiliser in a tank mix
Conducted by
The farm's agronomist together with a BASK agrobiotechnologist
Document
Field trial report

The task and the season's conditions

The farm wanted to save its harvest in a difficult season and check whether the crop protection rate could be halved without losses.

Abnormal rainfall

Fields became waterlogged and tubers rotted. Yield losses across the farm reached 70%.

Herbicide stress and frosts

Heavy chemical protection and late frosts stop potato growth for 10–14 days.

Machinery could not enter the field

Because of waterlogging, only one in-season treatment was done instead of two.

How the trial was run

Fertilised and control plots were in the same fields under the same technology. Only the protection and nutrition scheme differed.

Control

  • The farm's standard technology
  • Full crop protection rate — 100%
  • No BASK fertiliser

Trial

  • Tubers treated with the fertiliser at planting
  • Half crop protection rate — 50%
  • BASK fertiliser in a tank mix during the season
  1. At planting01

    Planting

    Tubers were treated with the fertiliser together with the seed dressing.

  2. Budding02

    Growing season

    Spraying in a tank mix with 50% crop protection. Because of rain, one treatment instead of two.

  3. 24 July03

    Interim count

    Number and condition of tubers in samples from trial and control plots.

  4. 18 August04

    Final count

    Yield per hectare on trial and control plots.

Results

Interim count on 24 July and final count on 18 August. Compared with control plots in the same fields.

  • Yield, t/ha

    ×2.5
    Control20–22
    With BASK50–55

  • Tubers per plant

    ×2.2
    Control5.5–6.7
    With BASK12–15

  • Plant height, cm

    +40%
    Control55–60
    With BASK77–83

  • Standard tubers per sample

    +47%
    Control30
    With BASK44
Without BASKWith BASK
Tuber samples on 24 July: control — 30 standard and 10 rotten, trial — 44 standard and 9 still growing.

Why it worked

The fertiliser worked both in the soil and in the plant — this helped the crop survive waterlogging and the chemical load.

  1. 01

    Nutrients don't wash out

    Humic acids hold nitrogen, phosphorus and potassium in the stolon zone — rain does not carry the fertiliser away.

  2. 02

    Phosphorus became more available

    Bound phosphorus turned into an available form — roots started faster and more tubers were set.

  3. 03

    No herbicide stall

    Fulvic acids relieve chemical stress — the plant keeps growing after treatments.

  4. 04

    The soil “breathes”

    Aeration and drainage of excess moisture improved, and soil microbial activity increased.

Conclusions

  • Yield 2.5 times higher than the control despite waterlogging and rot

  • The crop protection rate was halved without losing protection efficiency

  • Plants formed twice as many tubers and kept growing after treatments

  • Recommended for use in a scheme with 50% crop protection

The result was obtained under the specific conditions of the 2026 season and depends on the crop, variety, soil and weather. We select a scheme for your farm separately.

What was used

BASK Humic fertiliser

Liquid, in a tank mix with crop protection

View product

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Let's test the result on your farm

We apply the solution to part of a field, herd or waste volume and compare it with a control. You decide on adoption after the result.

  1. 01

    We discuss the task

    We choose the indicators we will compare.

  2. 02

    We set up the trial

    A specialist visits you and sets aside trial and control groups — in the field, on the farm or at the site.

  3. 03

    We take measurements

    We record the indicators throughout the season or cycle.

  4. 04

    We sum up

    We hand over a report and an application scheme for your farm.

What you get

  • Results in your conditions

    On your field, herd or site

  • A report compared with the control

    Figures you can show to management

  • An application scheme for your farm

    Rates, method and frequency of application

Or call us: +7 (343) 287-99-97 · we will agree on terms and timing on the first call