Brinjal Water Requirement Calculator
Work out the seasonal and per-irrigation water requirement of brinjal (FAO-56 ETc = ET₀ × Kc, peak Kc 1.1) for your field, climate, soil and irrigation method.
Brinjal fruits for months, so it needs consistent moisture through every flush; drip suits its long season and wide spacing. Water stress drops flowers and toughens fruit; waterlogging invites bacterial wilt.
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 Brinjal Water Requirement Calculator to turn the FAO-56 crop coefficients for brinjal into a real seasonal water volume and an irrigation interval for their own field — no agronomy tables, works offline.
About Brinjal Water Requirement Calculator
Long-bearing brinjal needs 600–800 mm across its 5–6 month season, with steady moisture sustaining the repeated picking flushes. This calculator uses the FAO-56 method — crop evapotranspiration ETc = ET₀ × Kc — with brinjal's own crop coefficients (Kc 0.6 initial, 1.1 mid-season, 0.9 late) across a 140-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 Brinjal 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 Brinjal Water Requirement Calculator?
- ✓Uses brinjal'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 brinjal need?+
Long-bearing brinjal needs 600–800 mm across its 5–6 month season, with steady moisture sustaining the repeated picking flushes. The exact figure depends on climate and season length; this tool sums ET₀ × Kc across the crop's 140-day growth stages for your conditions.
How much water does a long-duration brinjal crop use?+
About 600–800 mm over 150–180 days because it keeps fruiting for months. Steady moisture through each picking flush is what sustains yield; drip irrigation is well suited to the long season.
What happens if brinjal dries out during fruiting?+
It sheds flowers and young fruit and the fruit that sets turns tough and seedy. Keeping the root zone evenly moist — ideally by drip — through the repeated flushes maintains tender, marketable fruit.
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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