Analysis of water–energy–crop nexus indicators in irrigated sugarcane of Awash Basin, Ethiopia

Environmental Systems Research

Table 6 Mean Comparison of irrigation water application methods in terms of water productivity, total energy, energy productivity and energy efficiency

Categories	Number of schemes	Water (1000*m³/ha)	Productivity (ton/ha)	Total energy (GJ/ha)	Energy productivity (kg/MJ)	Energy efficiency
Gravity surface	5	31.85^a	136.32^a	53.57^a	2.56^a	21.84^a
Pump surface	3	17.08^b	112.78^a	68.94^a	1.69^b	14.41^b
Sprinklers	3	13.32^c	109.84^a	129.17^b	0.86^c	7.35^c
P values		< 0.05	0.076	0.0024	0.00033	< 0.05