Yield and Water Use Efficiency of Potato under Alternate Furrows and Deficit Irrigation

Table 4

The amount of irrigation water saved, tuber yield reduction, and relative water use efficiency with different irrigation methods and amounts.

Treatments		Irrigation amount (mm ha^−1)	Tuber yield (t ha^−1)	WUE (kg m^−3)	Water saved (%)	Yield reduction (%)	Relative WUE
Irrigation method	Irrigation level (%)
AFI	50	113.03	31.65	28.06	74	18	3.2
	75	169.54	37.96	22.49	62	1	2.6
	100	226.06	37.42	16.58	49	3	1.9
	Mean	169.54	35.67	22.38	62	7	2.6
FFI	50	110.08	26.54	24.31	75	31	2.8
	75	165.12	29.39	17.99	63	23	2.1
	100	220.17	29.72	13.59	50	23	1.6
	Mean	165.12	28.55	18.60	63	26	2.1
CFI	50	220.85	28.35	12.9	50	26	1.5
	75	331.28	37.75	11.41	25	2	1.3
	100	441.71	38.41	8.73	0	0	1.0
	Mean	331.28	34.84	11.04	25	9	1.3