Table 1. Uncontaminated soils (0-100 mm). Values, mean and standard errors (SE) of the pH, particle size, organic carbon (O. C.), cation-exchange capacity (CEC), CaCO3 and Fe total (Fe).
|
Soils |
pH |
Sands % |
Silts % |
Clays % |
OC % |
CEC cmolc kg-1 |
CaCO3 % |
Fe % |
|
Soil A |
7.8 |
50.8 |
20.5 |
18.5 |
0.69 |
10.3 |
13.6 |
2.32 |
|
Soil B |
8.0 |
52.3 |
27.2 |
20.5 |
1.52 |
14.6 |
8.3 |
2.97 |
|
Soil C |
8.2 |
57.8 |
24.6 |
17.1 |
0.89 |
9.3 |
18.5 |
1.15 |
|
Statistical |
||||||||
|
Mean |
8.0 |
53.6 |
24.1 |
18.7 |
1.03 |
11.4 |
13.5 |
2.15 |
|
SE |
0.1 |
2.1 |
1.9 |
1.0 |
0.25 |
1.6 |
2.9 |
0.53 |