Comparison of carbon footprint and net ecosystem carbon budget under organic material retention combined with reduced mineral fertilizer

Table 2 Agricultural inputs (Ai), and related coefficient factors (δ_i) and application rate

Treatments	GHG emission source from agricultural inputs	Emission coefficient	Agricultural inputs
			Unit	Application rate
			Unit	Chinese milk vetch	Early rice	Late rice
CK	N fertilizer	6.38	kg ha⁻¹	0	120	120
RA	N fertilizer	6.38	kg ha⁻¹	0	102	102
RB	N fertilizer	6.38	kg ha⁻¹	15	87	87
RC	N fertilizer	6.38	kg ha⁻¹	30	72	72
Same for all the treatments	P fertilizer	0.44	kg ha⁻¹	0	20	20
Same for all the treatments	K fertilizer	0.61	kg ha⁻¹	0	60	60
Same for all the treatments	Diesel for machinery	2.63	kg ha⁻¹	41	70	70
Same for all the treatments	Pesticide	14.0	kg ha⁻¹	7	13	13
Same for all the treatments	Electricity for irrigation	1.12	Kg ha⁻¹	0	468	468

The data were obtained from the average value of agricultural input in this study. N represents nitrogen fertilizer; P represents phosphate fertilizer; K represents potash fertilizer; GHG represents greenhouse gas

ISSN: 1750-0680