| Variables |
pH |
OM |
CEC |
Exch.Al |
Clay |
r |
R2 |
U |
| pH |
0.548 |
-0.086 |
0.012 |
-0.43 |
0.42 |
0.937*** |
0.624** |
0.61 |
| OM |
-0.291 |
0.163 |
-0.006 |
0.007 |
-0.87 |
0.990*** |
|
|
| CEC |
-0.143 |
0.023 |
-0.045 |
-0.46 |
-0.19 |
0.812** |
|
|
| Exch.Al |
-0.147 |
-0.004 |
-0.022 |
0.69** |
-0.33 |
0.967*** |
|
|
| Clay |
0.142 |
-0.087 |
0.005 |
-0.33 |
0.58** |
0.775** |
|
|
|
***, ** values are significant at p≤0.01 and p≤0.05; Exch.Al: Exchangeable Aluminum; OM: Organic Matter, CEC: Cation Exchange Capacity; U: Residual of Path Coefficient  |
| Table 3: Path coefficient analysis for direct effect of soil properties (diagonal and underliend) and indirect effect of other soil variable (off diagonal) on the p sorption maximum (Xm) of langmuhir isotherm. |