Table 2.
General soil parameters of the experimental soils: pH, electric conductivity (EC), maximum water-holding capacity (MWHC), calcium carbonate content (CaCO3), soil organic carbon (SOC), and diethylenetriamene pentaacetic acid (DTPA)-extractable trace metal concentrations
| DTPA-extractable | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| pH | EC* | MWHC | CaCO3 | SOC | Clay | Fe | Cu | Zn | |
| CaCl2 | μS cm−1 | g kg−1 | g kg−1 | g kg−1 | mg kg−1 | mg kg−1 | mg kg−1 | mg kg−1 | |
| Santomera | 7.8 | 107 | 504 | 499 | 7.3 | 306 | 4.9 | 1.6 | 0.5 |
| Bologna | 7.6 | 184 | 609 | 150 | 9.1 | 268 | 15.5 | 3.3 | 0.5 |
| Xeraco L | 7.7 | 139 | 615 | 147 | 14.2 | 442 | 7.5 | 3.1 | 5.7 |
| Xeraco T | 7.5 | 470 | 499 | 415 | 28.5 | 169 | 75.7 | 1.4 | 6.6 |
| Lassee | 7.7 | 154 | 536 | 138 | 15.5 | 268 | 4.8 | 1.2 | 0.9 |
| Nadec | 7.6 | 1452 | 327 | 152 | 8.3 | 97 | 9.6 | 0.4 | 0.6 |
| SL +10% | 7.6 | 196 | 403 | 80 | 13.8 | 103 | 18.6 | 0.4 | 0.4 |
| SL | 4.7 | 107 | 527 | 9 | 13.2 | 103 | 47.3 | 0.1 | 1.3 |
*
Determined in a 1 : 10 (soil : solution) water extract.