Table 2.
The influence of stabilization treatments on pH and fresh weight (FW) shoot yield of lettuce grown on PK and BA soils
| Stabilization treatments | PKa soil | BAa soil | ||
|---|---|---|---|---|
| Soil pH | Shoot yield (FW) | Soil pH | Shoot yield (FW) | |
| FMB | 7.04 (0.09)eb | 144 (13.0)a | 8.39 (0.09)bc | 91.5 (3.69)a |
| CMB | 7.02 (0.06)e | 84.2(2.65)c | 8.83 (0.25)a | 37.6 (0.40)b |
| PLB | 6.89 (0.04)f | 25.1 (2.78)g | 8.48 (0.20)b | 20.5 (1.87)e |
| PJB | 7.18 (0.10)d | 31.8 (2.40)g | 8.83 (0.39)a | 24.0 (1.72)d |
| CHB | 6.58 (0.03)g | 55.9 (2.19)e | 8.46 (0.14)b | 31.1 (0.81)c |
| ES | 7.74 (0.08)b | 61.0 (1.90)e | 8.88 (0.02)a | 13.2 (1.34)f |
| LI | 7.95 (0.05)a | 43.2 (1.89)f | 9.09 (0.23)a | 10.0 (0.96)g |
| CON+ | 6.51 (0.04)g | 73.1 (3.57)d | 8.11 (0.04)c | 12.7 (0.36)fg |
| CON− | 7.41 (0.02)c | 106 (6.77)b | 8.17 (0.06)bc | 30.8 (2.70)c |
FMB Faecal matter (Faecal cake) biochar, CMB cow manure biochar, PLB poultry litter biochar, PJB Prosopis juliflora pods biochar, CHB Coffee husk biochar, ES Eggshell waste, LI Lime, CON + spiked control, CON − non-spiked control
aPK soil: Silty loam soil; BA soil: Sandy loam soil
bStandard deviation in parentheses (n = 3), values for each soil with different letter within each column are significantly different (P < 0.05)