Table 8.

Correlation coefficient (r) matrix of different energy and economic parameters (n = 48)

Parameter	IE	OE	NE	ER	EP	GR	TCC	NR	BCR
IE
OE	0.40**
NE	− 0.53***	0.56***
ER	− 0.95***	− 0.11	0.75***
EP	− 0.92***	− 0.06	0.77***	0.99***
GR	− 0.10	0.56***	0.61***	0.26*	0.23
TCC	0.18	− 0.48***	− 0.60***	− 0.35*	− 0.34*	− 0.74***
NR	− 0.13	0.57***	0.64***	0.31*	0.29*	0.97***	− 0.89***
BCR	− 0.14	0.55***	0.63***	0.32*	0.30*	0.95***	− 0.91***	1.00***

IE input energy, OE output energy, NE net energy, ER energy ratio, EP energy productivity, GR gross return, TCC total cost of cultivation, NR net return, BCR B/C ratio

*Significant at p < 0.05

**Significant at p < 0.01

***Significant at p < 0.001