Figure D.10.

FOCUS R3 potatoes: response surface of the cumulative irrigation depth over 20 years (cm) as a function of the irrigation parameter FLEACH (tested range: −1.0 to 1.2) and PCDEPL (tested range: 0.1–0.9)

• Irrigation option 5; RATEAP: 0.125 cm h⁻¹= 30 mm day⁻¹ (top); RATEAP = 1.25 cm h⁻¹ = 300 mm day⁻¹ (bottom).