Table 3.
The communality and weight values of each soil variable for both TDS and MDS approach.
| TDS methods | MDS methods | |||
|---|---|---|---|---|
| Commnuity | Weight | Commnuity | Weight | |
| pH | 0.638 | 0.026 | ||
| EC (dS m−1) | 0.998 | 0.042 | 0.943 | 0.208 |
| SAR | 0.992 | 0.041 | 0.934 | 0.204 |
| ESP(%) | 0.990 | 0.040 | ||
| OM (g kg−1) | 0.979 | 0.040 | 0.916 | 0.20 |
| CEC (cmol kg−1) | 0.939 | 0.038 | ||
| CCE (g kg−1) | 0.738 | 0.030 | ||
| Total N (%) | 0.948 | 0.039 | ||
| Available P (mg kg−1) | 0.781 | 0.032 | ||
| Available K (mg kg−1) | 0.726 | 0.030 | ||
| Exchangeable Ca (cmolc kg−1) | 0.845 | 0.034 | 0.829 | 0.181 |
| Exchangeable Mg (cmolc kg−1) | 0.858 | 0.035 | ||
| Exchangeable K (cmolc kg−1) | 0.924 | 0.038 | ||
| Exchangeable Na (cmolc kg−1) | 0.922 | 0.038 | ||
| Soluble Ca (meq l−1) | 0.870 | 0.036 | ||
| Soluble Mg (meq l−1) | 0.938 | 0.039 | ||
| Soluble K (meq l−1) | 0.893 | 0.035 | ||
| Soluble Na (meq l−1) | 0.908 | 0.037 | ||
| Zn-DTPA (mg kg−1) | 0.993 | 0.041 | ||
| Cu- DTPA (mg kg−1) | 0.979 | 0.040 | ||
| Cd-DTPA (mg kg−1) | 0.948 | 0.041 | ||
| Pb DTPA (mg kg−1) | 0.939 | 0.039 | ||
| Ni-DTPA (mg kg−1) | 0.931 | 0.038 | ||
| Total Zn (mg kg−1) | 0.935 | 0.040 | 0.957 | 0.209 |
| Total Cu (mg kg−1) | 0.947 | 0.039 | ||
| Total Cd (mg kg−1) | 0.778 | 0.032 | ||
| Total Pb (mg kg−1) | 0.968 | 0.040 | ||
| Total Ni (mg kg−1) | 0.935 | 0.038 | ||
TDS: total data set; MDS: minimum data set; OM: organic matter; CCE: calcium carbonate equivalent; CEC: cation exchange capacity; EC: electrical conductivity; SAR: sodium adsorption ratio; ESP: exchangeable sodium percentage.