Effects of Subsurface Drip Irrigation on Water Consumption and Yields of Alfalfa under Different Water and Fertilizer Conditions

Table 7

Yields, WUE, and growth rates of each crop of alfalfa (the first/second/third crop).

Treatment	Total water consumption (mm)	Yield (kg·hm^-2)	WUE (kg·m^-3)	Yield increasing rate (%)
SF-1	130.42^c/143.19^c/132.73^d	2701.35^c/4077.04^d/3351.68^d	2.07^b/2.85^b/2.52^b	4.85/15.60/9.84
SF-2	140.42^b/150.68^b/154.47^b	3201.60^a/4752.38^c/4127.06^b	2.28^a/3.15^a/2.67^a	24.27/34.75/35.25
SF-3	136.71^b/147.27^c/150.33^b	3076.54^b/4627.31^c/3951.98^b	2.25^a/3.14^a/2.63^a	19.42/31.21/29.51
SF-4	130.29^c/161.88^a/146.09^c	3026.51^b/5152.58^a/3801.90^c	2.32^a/3.18^a/2.60^a	17.48/46.10/24.59
SF-5	142.36^b/167.33^a/164.39^a	3326.66^a/5352.68^a/4352.18^a	2.34^a/3.20^a/2.65^a	29.13/51.77/42.62
SF-6	138.24^b/164.82^a/159.27^a	3226.61^a/5252.63^a/4177.09^a	2.33^a/3.19^a/2.62^a	25.24/48.94/36.89
SF-7	135.24^c/156.23^b/142.94^c	2801.40^c/4802.40^b/3676.84^c	2.07^b/3.07^a/2.57^a	8.74/36.17/20.49
SF-8	145.78^a/161.94^a/162.60^a	3076.54^b/5027.51^b/4227.11^a	2.11^b/3.10^a/2.60^a	19.42/42.55/38.52
SF-9	141.13^b/159.48^a/157.44^a	2976.49^b/4927.46^b/4077.04^b	2.11^b/3.09^a/2.59^a	15.53/39.72/33.61
SF-10	153.11^a/163.95^a/153.73^b	2576.29^d/3526.76^e/3051.53^e	1.68^c/2.15^c/1.98^c	0/0/0