Table 5: Exchangeable cation, CEC and percent base saturation.
|
|
|
Exchangeable cation (cmol (+) kg-1soil) |
Ca/Mg |
K/Mg |
CEC (cmol (+) kg-1) |
CEC clay (cmol (+) kg-1) |
PBS% |
|||
|
Horizon |
Depth (cm) |
Ca |
Mg |
K |
Na |
|
|
|
|
|
|
Pedon1 |
||||||||||
|
A |
0-20 |
6 |
2 |
0.1 |
0.4 |
3 |
0.05 |
380 |
61.8 |
22.5 |
|
AB |
20-35 |
4 |
2 |
0.1 |
0.5 |
2 |
0.05 |
34.5 |
47.5 |
19.2 |
|
Bt1 |
35-100 |
3 |
1 |
0.1 |
0.3 |
3 |
0.1 |
29.9 |
34.8 |
14.7 |
|
Bt2 |
100-200 |
2 |
2 |
0.1 |
0.6 |
1 |
0.05 |
25.8 |
30.9 |
17.8 |
|
Pedon 2 |
||||||||||
|
Ap |
0-20 |
5 |
3 |
0.1 |
0.5 |
1.7 |
0.03 |
35.7 |
53.9 |
24.2 |
|
BA |
20-45 |
2 |
2 |
0.1 |
0.4 |
1 |
0.05 |
31.5 |
40.8 |
14.1 |
|
Bt |
45-120 |
2 |
2 |
0.1 |
0.3 |
1 |
0.05 |
27.6 |
35.5 |
15.9 |
Where, Ca: Calcium; Mg: Magnisium; K: Potasium; Na: Sodium; CEC: Cation Exchangeable Capacity; PBS: Percent of Base Saturation