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

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

Treatments

GHG emission source from agricultural inputs

Emission coefficient

Agricultural inputs

Unit

Application rate

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

  1. 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