WaterBulb Simulator

◈ Soil & Water Inputs

Soil Type

Balanced vertical & lateral movement

Sat. Hyd. Cond. (Ks) 2.500 cm/hr

0.050 cm/hr50.0 cm/hr

VH = 1.14 · r↑/↓ = 0.34
↕ Vertical dominant (Zd > Rh)

Drip Flow Rate 2.0 L/hr

0.5 L/hr8.0 L/hr

Initial Soil Moisture 15%

1% (dry)41%

Dripper Depth 0 cm

0 (surface)40 cm

Surface dripper — gravity drives water downward only

Elapsed Time 4.00 hr

0.25 hr24 hr

◈ Display & Salt Inputs

Irrigation Water EC 0.5 dS/m

0.1 dS/m5.0 dS/m

EC of applied water (ECw)

Initial Soil EC 1.5 dS/m

0.1 dS/m15 dS/m

Soil EC before irrigation (ECi)

Crop EC Threshold 3.0 dS/m

0.5 dS/m12 dS/m

EC above which yield is reduced (ECt)

Dry

Saturated

— wetted front | ··· iso-moisture contours ━ Rh ↓ Zd ↑ Zu

◈ Bulb Geometry

Bulb Shape (Zd/Rh) —

Wetted Radius Rh —

Depth ↓ below dripper —

Height ↑ above dripper —

Gravity ratio ↑/↓ —

Bulb Volume —

Water Applied —

◈ Active Parameters

Ks (active) —

VH shape factor (Zd/Rh) —

Saturated moisture θs —

Initial moisture θi —

Moisture deficit Δθ —

Dripper depth —

Ellipsoid mode —