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. 2023 Jul 12;30(37):88180–88196. doi: 10.1007/s11356-023-28488-8

Table 11.

Amount of C and N input to the agricultural system

Input source Total input (t y−1) C input N input
C % of the input source C t y−1 added to the system N % of the input source N t y−1 added to the system
Compost 354,290 0.54 191,317 0.02 7086
Crop residue (dry matter) 277,000 0.4 110,800 * 2105
Urea 8268 0.2 1654 0.46 3803
Animal manure (dry matter) 3765 0.34 1280 ** 1190
Biomass accumulation - - 9816 - -
Total 314,866 14,184

*N input from crop residue was calculated using the values of Table 11.1A (IPCC 2019)

** input from animal manure has been calculated using N excretion rates of animal species (Table 10.19; IPCC 2019)