Bitter gourd Water Requirement Calculator
Work out the seasonal and per-irrigation water requirement of bitter gourd (karela) (FAO-56 ETc = ET₀ × Kc, peak Kc 1) for your field, climate, soil and irrigation method.
Keep moisture steady through the long fruiting; drip suits the trellis crop and keeps foliage dry against mildew. Stress reduces fruit set and flushes.
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 Bitter gourd Water Requirement Calculator to turn the FAO-56 crop coefficients for bitter gourd (karela) into a real seasonal water volume and an irrigation interval for their own field — no agronomy tables, works offline.
About Bitter gourd Water Requirement Calculator
Trellised karela needs 450–600 mm of even moisture across months of repeated picking. This calculator uses the FAO-56 method — crop evapotranspiration ETc = ET₀ × Kc — with bitter gourd (karela)'s own crop coefficients (Kc 0.5 initial, 1 mid-season, 0.8 late) across a 110-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 Bitter gourd 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 Bitter gourd Water Requirement Calculator?
- ✓Uses bitter gourd (karela)'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 bitter gourd (karela) need?+
Trellised karela needs 450–600 mm of even moisture across months of repeated picking. The exact figure depends on climate and season length; this tool sums ET₀ × Kc across the crop's 110-day growth stages for your conditions.
How much water does bitter gourd need?+
About 450–600 mm over its long picking season. Even moisture sustains the repeated flushes; trellised crops yielding more need the upper end.
Does trellising change watering?+
Trellised karela lives and picks longer, so it needs steady irrigation over more weeks than a ground crop; drip keeps the root zone moist and the canopy dry.
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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