Berseem Water Requirement Calculator
Work out the seasonal and per-irrigation water requirement of berseem (fodder) (FAO-56 ETc = ET₀ × Kc, peak Kc 1.15) for your field, climate, soil and irrigation method.
Irrigate berseem every 10–15 days in winter and right after each cut — the regrowth depends on it. The succulent fodder is mostly water, so steady moisture directly drives green tonnage for dairy animals.
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 Berseem Water Requirement Calculator to turn the FAO-56 crop coefficients for berseem (fodder) into a real seasonal water volume and an irrigation interval for their own field — no agronomy tables, works offline.
About Berseem Water Requirement Calculator
Multi-cut berseem needs 500–800 mm across winter, with a light irrigation after each of its 5–6 cuts to power regrowth. This calculator uses the FAO-56 method — crop evapotranspiration ETc = ET₀ × Kc — with berseem (fodder)'s own crop coefficients (Kc 0.4 initial, 1.15 mid-season, 0.9 late) across a 160-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 Berseem 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 Berseem Water Requirement Calculator?
- ✓Uses berseem (fodder)'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 berseem (fodder) need?+
Multi-cut berseem needs 500–800 mm across winter, with a light irrigation after each of its 5–6 cuts to power regrowth. The exact figure depends on climate and season length; this tool sums ET₀ × Kc across the crop's 160-day growth stages for your conditions.
How often should berseem be irrigated?+
Every 10–15 days through winter and immediately after each cut to fuel regrowth. The multi-cut fodder gives 5–6 cuts, and yield at each depends on prompt post-cut irrigation.
How much water does berseem need?+
About 500–800 mm over its long multi-cut winter season. As a succulent fodder it transpires heavily, so steady moisture is what sustains the green tonnage that feeds dairy herds.
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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