Colocasia Water Requirement Calculator
Work out the seasonal and per-irrigation water requirement of colocasia (arbi) (FAO-56 ETc = ET₀ × Kc, peak Kc 1.1) for your field, climate, soil and irrigation method.
Colocasia needs abundant, continuous moisture — it tolerates waterlogged, marshy ground other tubers can't. Frequent irrigation through corm development is essential; never let it dry out.
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 Colocasia Water Requirement Calculator to turn the FAO-56 crop coefficients for colocasia (arbi) into a real seasonal water volume and an irrigation interval for their own field — no agronomy tables, works offline.
About Colocasia Water Requirement Calculator
Taro is a moisture-loving tuber needing 1200–1600 mm and one of the few crops that tolerates near-marshy conditions. This calculator uses the FAO-56 method — crop evapotranspiration ETc = ET₀ × Kc — with colocasia (arbi)'s own crop coefficients (Kc 0.6 initial, 1.1 mid-season, 0.9 late) across a 200-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 Colocasia 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 Colocasia Water Requirement Calculator?
- ✓Uses colocasia (arbi)'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 colocasia (arbi) need?+
Taro is a moisture-loving tuber needing 1200–1600 mm and one of the few crops that tolerates near-marshy conditions. The exact figure depends on climate and season length; this tool sums ET₀ × Kc across the crop's 200-day growth stages for your conditions.
Why does colocasia need so much water?+
Taro is a wetland-adapted crop that thrives in continuously moist, even marshy soil. Its large leaves transpire heavily and corm development demands abundant water — 1200–1600 mm or more.
Can colocasia tolerate waterlogging?+
Yes — uniquely among tuber crops, it tolerates and even prefers very wet, marshy conditions, making it suited to low-lying fields where other crops drown.
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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