Foxtail millet Water Requirement Calculator
Work out the seasonal and per-irrigation water requirement of foxtail millet (kangni) (FAO-56 ETc = ET₀ × Kc, peak Kc 1) for your field, climate, soil and irrigation method.
Foxtail millet finishes in 70–90 days on minimal water; irrigate at tillering and grain-fill if available. A reliable rainfed and contingency crop when the monsoon falters.
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 Foxtail millet Water Requirement Calculator to turn the FAO-56 crop coefficients for foxtail millet (kangni) into a real seasonal water volume and an irrigation interval for their own field — no agronomy tables, works offline.
About Foxtail millet Water Requirement Calculator
Foxtail millet is a hardy short-duration millet needing only 250–350 mm, ideal for dryland and catch-crop use. This calculator uses the FAO-56 method — crop evapotranspiration ETc = ET₀ × Kc — with foxtail millet (kangni)'s own crop coefficients (Kc 0.35 initial, 1 mid-season, 0.35 late) across a 85-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 Foxtail millet 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 Foxtail millet Water Requirement Calculator?
- ✓Uses foxtail millet (kangni)'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 foxtail millet (kangni) need?+
Foxtail millet is a hardy short-duration millet needing only 250–350 mm, ideal for dryland and catch-crop use. The exact figure depends on climate and season length; this tool sums ET₀ × Kc across the crop's 85-day growth stages for your conditions.
How much water does foxtail millet need?+
Only 250–350 mm over 70–90 days — among the most water-efficient cereals, which is why it is a key dryland and contingency crop when rains fail.
When should foxtail millet be irrigated?+
At tillering and grain-fill where water is available; otherwise it commonly finishes on stored soil moisture and light rainfall in dryland systems.
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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