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Table 1.

CO2 and CH4 fluxes under N fertilizer and oilseed rape cake fertilizer. DOI: https://doi.org/10.1525/elementa.2021.090.t1

CO2CH4
TreatmentVariation (mg kg–1 h–1)Average (mg kg–1 h–1)Cumulative Emission (mg kg–1)Variation (ng kg–1 h–1)Average (ng kg–1 h–1)Cumulative Emission (µg kg–1)
CK 0.25 ∼ 0.77 0.39 ± 0.04 d 377 ± 18.3 c –40.5 ∼ 4.86 –11.2 ± 1.40 a –8.16 ± 1.83 b 
0.22 ∼ 1.43 0.42 ± 0.01 d 414 ± 18.7 c –34.8 ∼ 17.9 –4.47 ± 9.37 a –11.5 ± 2.40 b 
0.26 ∼ 1.82 0.75 ± 0.03 a 654 ± 52.9 a –47.7 ∼ 20.5 –9.09 ± 7.18 a –12.7 ± 0.29 b 
NR1 0.27 ∼ 2.10 0.58 ± 0.01 c 544 ± 16.9 b –55.7 ∼ 25.7 –1.49 ± 2.01 a 2.51 ± 1.63 a 
NR2 0.28 ∼ 1.78 0.68 ± 0.05 b 621 ± 37.7 a –43.5 ∼ 25.1 –2.51 ± 4.48 a –0.70 ± 2.66 a 
CO2CH4
TreatmentVariation (mg kg–1 h–1)Average (mg kg–1 h–1)Cumulative Emission (mg kg–1)Variation (ng kg–1 h–1)Average (ng kg–1 h–1)Cumulative Emission (µg kg–1)
CK 0.25 ∼ 0.77 0.39 ± 0.04 d 377 ± 18.3 c –40.5 ∼ 4.86 –11.2 ± 1.40 a –8.16 ± 1.83 b 
0.22 ∼ 1.43 0.42 ± 0.01 d 414 ± 18.7 c –34.8 ∼ 17.9 –4.47 ± 9.37 a –11.5 ± 2.40 b 
0.26 ∼ 1.82 0.75 ± 0.03 a 654 ± 52.9 a –47.7 ∼ 20.5 –9.09 ± 7.18 a –12.7 ± 0.29 b 
NR1 0.27 ∼ 2.10 0.58 ± 0.01 c 544 ± 16.9 b –55.7 ∼ 25.7 –1.49 ± 2.01 a 2.51 ± 1.63 a 
NR2 0.28 ∼ 1.78 0.68 ± 0.05 b 621 ± 37.7 a –43.5 ∼ 25.1 –2.51 ± 4.48 a –0.70 ± 2.66 a 

CK (soil), N (soil + urea), R (soil + rape cake fertilizer), NR1 (soil + urea, rape cake fertilizer (2:1)), NR2 (soil + urea, rape cake fertilizer (1:2)). Different letters within a column mean significant difference (P < 0.05). Data are means ± SD of three independent replicates.

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