Table 3 Soil pH, buffer pH and lime requirements
Sampling sites | pH | ∆pH | LR (tons CaCO3 ha−1) | |||
|---|---|---|---|---|---|---|
H2O | KCl | Buffer | KCl | pH (6.0) | pH (6.5) | |
SC1 | 4.65 | 3.98 | 5.11 | 0.66 | 9.20 | 11.50 |
SC2 | 4.79 | 4.05 | 5.41 | 0.74 | 7.80 | 9.60 |
SC3 | 4.73 | 4.04 | 5.20 | 0.68 | 8.70 | 10.70 |
SC4 | 4.81 | 4.10 | 5.31 | 0.71 | 8.20 | 10.00 |
SC5 | 5.13 | 4.22 | 5.61 | 0.90 | 6.70 | 8.20 |
SC6 | 4.76 | 4.12 | 5.30 | 0.64 | 8.20 | 10.00 |
SC7 | 4.91 | 4.09 | 5.31 | 0.82 | 8.20 | 10.00 |
SD1 | 5.30 | 4.38 | 6.20 | 0.92 | 3.70 | 4.60 |
SD2 | 5.01 | 4.21 | 6.11 | 0.79 | 4.10 | 5.00 |
SD3 | 5.12 | 4.29 | 6.51 | 0.83 | 2.10 | 2.60 |
SD4 | 5.36 | 4.42 | 6.31 | 0.94 | 3.30 | 4.00 |
SD5 | 5.45 | 4.46 | 6.41 | 0.99 | 2.80 | 3.40 |
Mean | 5.00 | 4.20 | 5.73 | 0.79 | 6.08 | 7.47 |