Table 2: Energy equivalent coefficients for various sources of energy in faba bean production.

Particulars	Unit	Energy Equivalent (MJ unit−1)	Reference	Remarks
A. Inputs
1. Human labor	h	1.96	[12, 52, 53]	Human Male (1.78 MJ as direct and 0.18 MJ as indirect)
2. Machinery	h	62.70	[54, 55]	Distributing the energy used in manufacture over the lifetime of the machinery
3. Diesel fuel	L	56.31	[18, 54, 56]	The production of one liter of petroleum-derived diesel Including lubricant
4. Phosphorus (P2O5) fertilizer	kg	12.44	[26, 52]	Energy required for manufacture of kg P2O5 as fertilizer
5. Herbicide	L	238.00	[47, 54]	Energy required for manufacture of 1 liter of herbicide; Requires dilution at the time of application
6. Seeds (faba bean)	kg	21.00	[47]	Dry weight as an output of crop production system
B. Outputs
1. Dry grain	kg	20.00	[12, 47]	Gross energy in faba bean grain (dry weight)
2. Faba bean straw	kg	17.65	-	Calculated value from Feedipedia [23] and Hadjipanayiotou et al. [24] based on the amount of energy released as heat (gross energy) in faba bean straw (dry matter)