Coriander Water Requirement Calculator
Work out the seasonal and per-irrigation water requirement of coriander (dhaniya) (FAO-56 ETc = ET₀ × Kc, peak Kc 1) for your field, climate, soil and irrigation method.
Leaf dhaniya needs frequent light irrigation for tender greens; seed coriander needs steady moisture through flowering and seed development. Avoid stress at flowering for good seed set.
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 Coriander Water Requirement Calculator to turn the FAO-56 crop coefficients for coriander (dhaniya) into a real seasonal water volume and an irrigation interval for their own field — no agronomy tables, works offline.
About Coriander Water Requirement Calculator
Coriander needs 300–450 mm; leaf crops want frequent light water, seed crops want moisture held for grain-fill. This calculator uses the FAO-56 method — crop evapotranspiration ETc = ET₀ × Kc — with coriander (dhaniya)'s own crop coefficients (Kc 0.4 initial, 1 mid-season, 0.35 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 Coriander 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 Coriander Water Requirement Calculator?
- ✓Uses coriander (dhaniya)'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 coriander (dhaniya) need?+
Coriander needs 300–450 mm; leaf crops want frequent light water, seed crops want moisture held for grain-fill. 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 coriander need?+
About 300–450 mm. Leaf crops are cut early and watered frequently; seed crops are irrigated through flowering and seed-fill for plump grain.
Is irrigation different for leaf vs seed coriander?+
Yes — leaf dhaniya wants frequent light moisture for soft greens; seed coriander needs steadier moisture, especially through flowering and seed development.
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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