Characteristic | Soil type | ||||||
I | II | III | IV | V | VI | VII | |
Sand (%) | 31 | 64 | 47 | 35 | 33 | 25 | 19 |
Silt (%) | 18 | 7 | 21 | 20 | 17 | 14 | 10 |
Clay (%) | 42 | 25 | 29 | 49 | 32 | 59 | 33 |
pH | 4.9 | 4.5 | 4.9 | 4.9 | 5.3 | 7.6 | 6.2 |
EC (mhos × 106) | 37 | 43 | 138 | 16 | 41 | 99 | 55 |
CEC (meq/100g) | 11.5 | 4.7 | 8.2 | 8.5 | 4.4 | 6.3 | 34.2 |
OM (%) | 1.55 | 1.03 | 2.41 | 0.86 | 1.89 | 3.96 | 0.52 |
Base saturation (%) | 18 | 13 | 49 | 28 | 32 | 100 | 100 |
Ca (meq/100g) | 1.3 | 0.5 | 3.5 | 1.8 | 0.8 | 8.0 | 15.6 |
Mg (meq/100g) | 7 | 0.2 | 0.7 | 0.9 | 0.7 | 0.4 | 31.1 |