Table 5: Analysis of Variance (ANOVA) and comparison of 6-year (2010/11 to 2015/16) means of energy indexes in faba bean production as influenced by treatments and interactions between them.

Treatment Energy Use Efficiency (MJ ha-1) Energy Production
(Kg MJ-1)		 Energy Intensity
(MJ kg-1)		 Net Energy
(MJ ha-1)		 Energy Profitability
(MJ ha-1)		 Human Energy Profitability
(MJ h-1)
Tillage *** *** *** * *** ***
Conventional (CT) 10.6 b 0.199 b 6.5 a 146013 a 9.6 b 23852.4 b
Reduced (RT) 10.3 b 0.189 b 6.4 a 136457.8 b 9.3 b 22927.8 b
No-Tillage (NT) 14.7 a 0.278 a 4.1 b 147556.6 a 13.7 a 66906.8 a
Year *** *** *** *** *** ***
2011 5.5 e 0.103 e 11.2 a 57980.6 d 4.5 e 17819.2 e
2012 10.5 d 0.188 d 5.5 b 124734.1 c 9.5 d 33823.5 d
2013 11.4 c 0.234 c 4.6 bc 134427.8 c 10.4 c 38114.7 c
2014 16.9 a 0.260 b 3.9 cd 212443.7 a 15.9 a 52153.5 a
2015 13.9 b 0.346 a 2.9 d 170328.9 b 12.9 b 43831.1 b
2016 13.1 b 0.200 d 5.7 b 160139.6 b 12.1 b 41632.2 b
Mean 11.9 0.222 5.6 143342.5 10.9 37895.7
Interaction
Year x Tillage *** *** *** *** *** ***

*P ≤ 0.05, **P ≤ 0.01 and ***P ≤ 0.001; Data followed by the same letter are not significantly different at P ≤ 0.05 significant level as determined by Least Significant Difference test (LSD)