Weather scenario

Mean air temperature: 28 °C Mean relative humidity: 55 % Wind speed (2 m): 2.0 m/s Solar radiation: 22.0 MJ/m²/day Rain chance: 15 %/day

Crop & irrigation

Growth stage (crop coefficient Kc)

Management allowed depletion: 45 %

Season playback

Playback speed: 1.0×

Today's Penman-Monteith terms

Δ (slope es curve)—

γ (psychrometric)—

es − ea (vapor deficit)—

Net radiation Rn—

ET0 (reference)—

ETc (crop demand)—

Season stats

Day0 / 90

Soil moisture—

Cumulative irrigation—

Cumulative rain—

Irrigation events—

ET0 is computed every simulated day from the full FAO-56 Penman-Monteith equation using genuinely derived Δ, γ, es, ea, Ra, Rso and Rn terms — not a lookup table. The soil-moisture bucket depletes daily by ET0×Kc and refills from rain or scheduled irrigation once depletion crosses the management-allowed-depletion threshold. The 3D crop field wilts and greens with that same moisture value.