Energy-Based Evaluations on Eucalyptus Biomass Production

Table 3

Percentage of purchased emergy inputs (𝐹) per operations and classes*.

Operations	Emergy demand per class (%)
	Fuel	Emergy depreciation	Labor	Input	Total
Harvest	24.20	1.00	13.00	1.20	39.40
Limestone application	0.20	0.00	0.10	22.00	22.30
Subsoiling + fertilizer + herbicide	0.50	0.00	0.20	16.10	16.80
Fertilizer application (2nd year)	0.20	0.00	0.10	4.70	5.00
Fertilizer application (3rd month)	0.10	0.00	0.10	3.00	3.20
Fertilizer application (8th month)	0.20	0.00	0.10	2.80	3.10
Planting	0.10	0.00	0.80	2.00	2.90
Outros	1.30	0.10	3.50	2.30	7.20
Total	26.70	1.30	17.80	54.10	100

*From 16.80% of the emergy total subsoiling, 15.70% represents fertilizer (06-30-10) and 0.40% the herbicide.