Table 2.
Effects of swine manure biochar and biogas slurry application on the quality of lotus root.
| Treatment | Nitrate (mg·kg-1) |
Protein (mg·g-1) |
soluble sugar (mg·g-1) |
starch (mg·g-1) |
|---|---|---|---|---|
| CK | 112.1 ± 2.071h | 0.153 ± 0.044f | 2.480 ± 0.350e | 6.512 ± 0.221b |
| A0B0 | 136.4 ± 2.692d | 0.192 ± 0.011ef | 2.638 ± 0.127de | 6.629 ± 0.317b |
| A0B1 | 122.8 ± 2.045e | 0.275 ± 0.015cd | 3.038 ± 0.765de | 7.152 ± 0.215ab |
| A0B2 | 145.3 ± 1.835c | 0.320 ± 0.014bc | 4.191 ± 0.772bc | 7.901 ± 1.892ab |
| A1B0 | 113.9 ± 1.102gh | 0.223 ± 0.016de | 2.653 ± 0.356de | 7.038 ± 1.373ab |
| A1B1 | 116.3 ± 2.112fg | 0.276 ± 0.019cd | 3.059 ± 0.086de | 7.587 ± 0.665ab |
| A1B2 | 160.6 ± 0.761b | 0.348 ± 0.030ab | 4.980 ± 0.805ab | 8.033 ± 0.456ab |
| A2B0 | 117.8 ± 2.966f | 0.227 ± 0.029de | 3.010 ± 0.469de | 7.054 ± 0.107ab |
| A2B1 | 174.9 ± 1.974a | 0.284 ± 0.042cd | 3.606 ± 0.536cd | 7.868 ± 0.456ab |
| A2B2 | 137.2 ± 1.326d | 0.386 ± 0.070a | 5.400 ± 0.838a | 8.832 ± 1.201a |
Different lowercase letters indicate significant differences between treatments (p < 0.05).