[Retracted] Topological Sustainability of Crop Water Requirements and Irrigation Scheduling of Some Main Crops Based on the Penman-Monteith Method

Table 11

Barley crop data at various stages.

Crop Name	Barley	Scientific Name	Hordeum vulgare
Planting date (KSA)	15/10/2020
Harvest date	11/02/2021
Stages	Initial	Develop	Mid	Late	Total
Length (days)	15	25	50	30	120
Kc values	0.30	⟶	1.15	0.25
Rooting depth (m)	0.30	⟶	1.10	1.10
Critical depletion	0.55	⟶	0.55	0.90
Yield response friction	0.20	0.60	0.50	0.40	1.00
Crop height (m)			1

The Kc value at initial and developing stage is 0.30; at mid-season stage, the Kc is 1.15; and at late season stage, the Kc value is 0.25.