Required Lateral Inlet Pressure Head for Automated Subsurface Drip Irrigation Management

Table 1

Tolerable soil pressure head variations for some crops.

Crop	Upper pressure (cm)	Lower pressure (cm)	References
Spring wheat	−25	−1000	Li et al. [23]
Tomato	−2	−800	Gärdenäs et al. [24]; Hanson et al. [25]
Soybeans	−25	−800	Clemente et al. [26]
Grape	−2	−1000	Hanson et al. [25]
Grass	−25	−800	Clemente et al. [26]