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Table 2.

The changes of the pH value and the content of DOC, MBC, NH4+-N, and NO3-N in five different treatments. DOI: https://doi.org/10.1525/elementa.2021.090.t2

DOC (mg kg–1)MBC (mg kg–1)NH4+-N (mg kg–1)NO3-N (mg kg–1)pH
TreatmentVariationAverageVariationAverageVariationAverageVariationAverageVariationAverage
CK 11.9 ∼ 43.9 20.3 ± 3.23e 10.5 ∼ 48.9 26.2 ± 1.42d 16.8 ∼ 25.6 20.7 ± 1.87e 7.94 ∼ 40.4 21.3 ± 2.20bc 4.24 ∼ 4.57 4.37 ± 0.04b 
12.9 ∼ 55.5 25.6 ± 0.76d 22.4 ∼ 47.5 30.8 ± 4.74cd 71.1 ∼ 110.4 94.4 ± 4.28a 8.72 ∼ 91.2 40.8 ± 0.74a 4.12 ∼ 5.05 4.62 ± 0.08a 
47.0 ∼ 168 83.2 ± 3.61a 25.9 ∼ 88.5 57.9 ± 3.01a 12.9 ∼ 65.9 41.5 ± 3.74d 7.15 ∼ 51.9 18.1 ± 7.54c 4.32 ∼ 4.85 4.58 ± 0.03a 
NR1 26.2 ∼ 63.2 40.5 ± 1.00c 21.4 ∼ 64.8 35.8 ± 3.35c 67.9 ∼ 99.7 81.1 ± 0.42b 7.49 ∼ 87.2 34.9 ± 1.69a 4.22 ∼ 4.96 4.60 ± 0.01a 
NR2 33.1 ∼ 97.3 52.9 ± 1.39b 21.5 ∼ 76.4 45.1 ± 1.70b 43.7 ∼ 83.2 67.9 ± 1.21c 6.86 ∼ 75.6 26.6 ± 3.99b 4.27 ∼ 4.91 4.59 ± 0.03a 
DOC (mg kg–1)MBC (mg kg–1)NH4+-N (mg kg–1)NO3-N (mg kg–1)pH
TreatmentVariationAverageVariationAverageVariationAverageVariationAverageVariationAverage
CK 11.9 ∼ 43.9 20.3 ± 3.23e 10.5 ∼ 48.9 26.2 ± 1.42d 16.8 ∼ 25.6 20.7 ± 1.87e 7.94 ∼ 40.4 21.3 ± 2.20bc 4.24 ∼ 4.57 4.37 ± 0.04b 
12.9 ∼ 55.5 25.6 ± 0.76d 22.4 ∼ 47.5 30.8 ± 4.74cd 71.1 ∼ 110.4 94.4 ± 4.28a 8.72 ∼ 91.2 40.8 ± 0.74a 4.12 ∼ 5.05 4.62 ± 0.08a 
47.0 ∼ 168 83.2 ± 3.61a 25.9 ∼ 88.5 57.9 ± 3.01a 12.9 ∼ 65.9 41.5 ± 3.74d 7.15 ∼ 51.9 18.1 ± 7.54c 4.32 ∼ 4.85 4.58 ± 0.03a 
NR1 26.2 ∼ 63.2 40.5 ± 1.00c 21.4 ∼ 64.8 35.8 ± 3.35c 67.9 ∼ 99.7 81.1 ± 0.42b 7.49 ∼ 87.2 34.9 ± 1.69a 4.22 ∼ 4.96 4.60 ± 0.01a 
NR2 33.1 ∼ 97.3 52.9 ± 1.39b 21.5 ∼ 76.4 45.1 ± 1.70b 43.7 ∼ 83.2 67.9 ± 1.21c 6.86 ∼ 75.6 26.6 ± 3.99b 4.27 ∼ 4.91 4.59 ± 0.03a 

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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