Table 1 Selected chemical and physical properties of soil for precipitation and adsorption test
From: Mechanism of cadmium immobilization in phosphate-amended arable soils
Items | Cd-contaminated soil for precipitation test | Uncontaminated soil for adsorption test |
|---|---|---|
pH (1:5 with H2O) | 5.20 | 6.97 |
Organic matter (g kg−1) | 48.9 | 10.2 |
Available phosphorus (mg kg−1) | 10.1 | 25.3 |
Cation exchange capacity (cmolckg−1) | 6.9 | 11.9 |
Exchangeable cation (cmolckg−1) | ||
K | 0.17 | 0.9 |
Ca | 3.97 | 7.8 |
Mg | 0.87 | 0.9 |
Particle size distribution (%) | ||
Clay | 6.1 | 16.4 |
Silt | 35.0 | 23.3 |
Sand | 58.9 | 55.4 |
Soil texture | Sandy loam | Clay loam |
Total Cd (mg kg−1) | 5.57 | tr |
1 M NH4OAc extractable Cd (mg kg−1) | 1.45 | tr |