Banana Water Requirement Calculator
Work out the seasonal and per-irrigation water requirement of banana (FAO-56 ETc = ET₀ × Kc, peak Kc 1.1) for your field, climate, soil and irrigation method.
Banana never tolerates moisture stress — its large leaf area and shallow roots make daily drip ideal, often paired with fertigation. Ensure drainage too; banana hates waterlogging as much as drought.
Indicative planning figures based on published research averages. Local soil tests, varieties and weather change actual requirements — confirm with your agronomist or extension officer.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Farmers and irrigation planners use the free Banana Water Requirement Calculator to turn the FAO-56 crop coefficients for banana into a real seasonal water volume and an irrigation interval for their own field — no agronomy tables, works offline.
About Banana Water Requirement Calculator
Banana is a year-round heavy user (1800–2200 mm) whose shallow roots and big leaves demand near-daily drip irrigation in summer. This calculator uses the FAO-56 method — crop evapotranspiration ETc = ET₀ × Kc — with banana's own crop coefficients (Kc 0.5 initial, 1.1 mid-season, 1 late) across a 330-day season. Pick your climate band (which sets reference ET₀), irrigation method (drip, sprinkler, pivot or surface — each with its own efficiency) and soil texture, and it returns the seasonal water need in cubic metres, the peak daily demand, the net depth per irrigation and how many days to wait between irrigations.
How to use Banana Water Requirement Calculator
- 1Enter your field area and choose the climate band matching your season.
- 2Select your irrigation method and soil texture.
- 3Read the seasonal water volume, peak daily demand and irrigation interval, then follow the scheduling note.
Why use Banana Water Requirement Calculator?
- ✓Uses banana's real FAO-56 Kc curve, not a flat factor
- ✓Accounts for drip / sprinkler / pivot / surface efficiency
- ✓Gives seasonal volume, peak daily need and an irrigation interval
- ✓Free, instant and fully in-browser — works offline in the field
Frequently asked questions
How much water does banana need?+
Banana is a year-round heavy user (1800–2200 mm) whose shallow roots and big leaves demand near-daily drip irrigation in summer. The exact figure depends on climate and season length; this tool sums ET₀ × Kc across the crop's 330-day growth stages for your conditions.
How much water does a banana plant need?+
A banana crop uses about 1800–2200 mm a year — very high — because of its large transpiring leaf area and year-round growth. Drip irrigation with frequent (often daily in summer) application is standard.
Why is drip irrigation standard for banana?+
Banana's shallow roots and constant water demand mean it cannot buffer dry spells, so the frequent, localised supply from drip keeps moisture ideal, saves 40%+ water over flood, and delivers fertiliser through fertigation.
What is ET₀ and Kc?+
ET₀ (reference evapotranspiration) is how fast a standard grass surface loses water in your climate. Kc (crop coefficient) scales it to a specific crop and growth stage. Crop water use ETc = ET₀ × Kc — the basis of FAO-56 irrigation scheduling.
Is this calculator free and private?+
Yes — free, no sign-up, and all calculation runs in your browser, so it works offline in the field and your data never leaves the device.
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