TABLE 1.
Effects of biochar amendment on soil chemical properties.
| Soil properties | Unit |
Treatment |
||
| B0 | B0.5 | B2 | ||
| Total nitrogen (TN) | g/kg | 1.150.01a | 1.160.00a | 1.170.02a |
| Organic matter (OM) | g/kg | 27.470.37b | 28.430.73b | 32.080.64a |
| Alkali-hydrolysable nitrogen (AN) | mg/kg | 112.983.74a | 111.166.08a | 101.794.22a |
| Available phosphorus (AP) | mg/kg | 4.780.35b | 6.380.77b | 15.593.48a |
| Available potassium (AK) | mg/kg | 43.790.35c | 115.411.27b | 261.081.49a |
| Electrical conductivity (EC) | μS/cm | 76.601.37c | 98.606.32b | 145.400.47a |
| Carbon-nitrogen ratio (C/N) | 13.840.18b | 14.170.36b | 15.930.54a | |
| pH | 6.100.01b | 6.170.05ab | 6.260.03a | |
All data for the effects of biochar on soil chemical properties are presented as the mean ± standard errors calculated from three biological replicates. Data in the same row followed by different letters showed significant differences (p < 0.05; n = 3).