Table 1 Effects of different biochar application rates on soil nitrogen availability
From: The effect of biochar on nitrogen availability and bacterial community in farmland
Treatment | TN(g kg−1) | NN(mg kg−1) | AN(mg kg−1) | MBN(mg kg−1) | NN/TN | AN/TN | MBN/TN |
|---|---|---|---|---|---|---|---|
CK | 2.32±0.03 b | 132.38±2.45 a | 8.64±0.52 c | 51.35±1.02 c | 57.64±0.01 a | 3.73±0.85 b | 22.15±0.26 ab |
BC1 | 2.43±0.20 b | 128.91±4.23 b | 9.63±0.76 c | 53.20±1.16 c | 52.03±0.01 b | 3.84±1.68 ab | 23.90±1.25 a |
BC2 | 2.50±0.09 b | 119.80±4.87 bc | 13.60±0.90 b | 61.24±3.27 b | 48.85±0.03 b | 4.44±2.61 ab | 23.97±0.82 a |
BC3 | 3.07±0.08 a | 116.95±4.79 c | 13.73±1.43 b | 62.80±1.00 ab | 38.64±0.01 c | 4.35±1.80 ab | 20.44±0.79 b |
BC4 | 3.04±0.01 a | 115.81±2.56 c | 17.41±1.05 a | 64.84±1.30 a | 38.16±0.01 c | 4.75±1.04 a | 21.79±0.45 b |