Table 2 Main physicochemical properties of soil samples
Sample | pH | EC | OC | OM | Pava | TN | Particle size fraction | Classification | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
H2O | KCl | μS cm−1 | g kg−1 | g kg−1 | mg kg−1 | g kg−1 | Sand | Silt | Clay | USDA | |
% | |||||||||||
Soil 1 | 8.2 (0.03) | 7.9 (0.18) | 205 (10.6) | 10.6 (0.25) | 18.3 | 30.2 (0.67) | 1.1 (0.05) | 10.5 (0.70) | 44.9 (1.35) | 44.6 (0.15) | Silty clay |
Soil 2 | 8.1 (0.07) | 7.1 (0.0) | 194 (15.6) | 15.7 (0.38) | 27.1 | 44.7 (2.43) | 1.5 (0.05) | 17.3 (0.80) | 35.6 (1.80) | 47.1 (0.9) | Clay |
Soil 3 | 7.9 (0.02) | 7.4 (0.04) | 244 (5.0) | 28.7 (7.6) | 49.5 | 150.0 (0.79) | 2.4 (0.01) | 33.1 (1.25) | 49.7 (0.70) | 17.2 (0.20) | Silty loam |