Sicily, Italy · 2 years · early potato
Agricultural Water Management · 2012
Full-paper technical review
Tuber yield and irrigation water productivity in early potatoes as affected by irrigation regime
A two-year Sicilian early-potato experiment compared four irrigation windows. Supplying 100% of calculated maximum evapotranspiration from tuber initiation to about 50% of tuber growth produced yields statistically comparable with irrigation through the whole tuber-growth period, while using roughly half as much irrigation water.
four irrigation windows; 100% ETm during selected crop stages; tuber yield, water productivity, tuber size and dry matter
Full paper reviewed
The page explains what the independent paper supports and where the evidence may be useful. It does not state that Kumer 1687 uses the same treatment or achieves the same numerical result unless that is documented separately on a Kumer-specific page.
What the full paper actually found
A two-year Sicilian early-potato experiment compared four irrigation windows. Supplying 100% of calculated maximum evapotranspiration from tuber initiation to about 50% of tuber growth produced yields statistically comparable with irrigation through the whole tuber-growth period, while using roughly half as much irrigation water. In the first year the two regimes produced about 54.9 and 56.6 t/ha; in the second year about 36.5 and 34.3 t/ha, respectively. The authors report an average irrigation saving of roughly 77 mm/year. Irrigation delayed until the second half of tuber growth did not recover the lost yield, showing that early tuber initiation/bulking is the higher-priority water window under the study conditions.
Full PDF reviewed: 2026-09-09
How this review was built
This page is a technical interpretation of the complete PDF supplied to the Kumer 1687 research library. The abstract was checked against the methods, tables or figures, results and conclusion. Study-specific numbers are kept in their experimental context, and independent research is kept separate from Kumer-specific practice.
- Source authors
- Anita Ierna & Giovanni Mauromicale
- Evidence status
- Full paper reviewed
Transfer to Slovenian production
Moderate transferability: the biological or engineering mechanism and the decision logic are useful for Slovenian production, but the exact dose, threshold, timing, machine setting, temperature or shelf-life value must be calibrated locally.
A practical Kumer trial would instrument the active root zone, record the date of tuber initiation, and prioritise irrigation through early bulking. Compare total irrigation millimetres, marketable yield, tuber-size distribution, defects and water productivity with the current schedule; the Sicilian 77 mm saving is a benchmark to investigate, not a Slovenian target.
Local validation before adoption
- Define the commercial endpoint before the trial: marketable yield, grade, freshness, shelf life, water/energy use or labour requirement.
- Compare a control and a test treatment on the same cultivar, field or product lot wherever practical.
- Log the variables that can change the outcome: weather, soil water, product temperature, relative humidity, working depth, crop stage and packaging as relevant.
- Measure benefit and cost/risk together: yield, rejects, crop damage, labour, energy, water and quality.
- Repeat the comparison in at least two relevant production windows or conditions before standardising the practice.
Interpretation boundary
The page explains what the independent paper supports and where the evidence may be useful. It does not state that Kumer 1687 uses the same treatment or achieves the same numerical result unless that is documented separately on a Kumer-specific page.
Related scientific reviews
Growth requirements of different potato cultivars
Full paper reviewedCanopy temperature and heat stress are increased by compound high air temperature and water stress and reduced by irrigation — a modeling analysis
Full paper reviewedGrowth and yield of pickling cucumber in different soil moisture circumstances
Full paper reviewedAn Integrated Weed Management framework: A pan-European perspective
Full paper reviewed
Full paper reviewedCanopy temperature and heat stress are increased by compound high air temperature and water stress and reduced by irrigation — a modeling analysis
Full paper reviewedGrowth and yield of pickling cucumber in different soil moisture circumstances
Full paper reviewedAn Integrated Weed Management framework: A pan-European perspective
Full paper reviewed
Expert interpretation
The operational lesson is stage prioritisation. In this experiment, water supplied during early tuber initiation and the first half of tuber growth protected yield far better than the same strategic idea applied only later. For Slovenia, the growth-stage logic is more transferable than the Sicilian dates or millimetres, because rainfall, soil water storage, cultivar maturity and planting date shift the actual irrigation requirement.
Why this matters to buyers and partners
For potato buyers, the relevant outcome is not water use alone but marketable yield, tuber size and defect rate. Stage-focused irrigation can be a route to better water productivity, but this study does not establish the water footprint or quality of Kumer potatoes without Kumer field data.
Original article
Tuber yield and irrigation water productivity in early potatoes as affected by irrigation regime
Agricultural Water Management · 2012