Research Article
Boron Characterization, Distribution in Particle-Size Fractions, and Its Adsorption-Desorption Process in a Semiarid Tunisian Soil
Table 1
Selected physicochemical properties of the studied soil.
| | Depth (cm) | Hz | pH | EC (dS/m) | Sand (%) | Silt (%) | Clay (%) | TCaCO3 (%) | TOC (%) | TN (‰) | C/N | OM (%) | CEC (meq/100 g) | B (mg/kg) |
| | 0–25 | Ap | 8.30 | 1.36 | 41.46 | 26.48 | 32.06 | 13.16 | 1.23 | 1.12 | 10.98 | 2.12 | 30.67 | 0.64 | | 25–50 | A/C | 8.23 | 1.89 | 37.39 | 23.78 | 38.83 | 12.75 | 0.81 | 1.40 | 5.79 | 1.39 | 25.33 | 0.63 | | 50–75 | C1 | 8.08 | 2.07 | 36.44 | 21.95 | 41.60 | 8.50 | 0.73 | 0.62 | 11.77 | 1.26 | 20.00 | 0.66 | | 75–100 | C2 | 8.05 | 2.08 | 37.91 | 19.16 | 42.93 | 6.25 | 0.61 | 0.6 | 10.17 | 1.05 | 17.33 | 0.74 |
|
|
Hz: horizons; EC: electrical conductivity; TCaCO3: total lime; TOC: total organic carbon; TN: total nitrogen; OM: organic matter; CEC: cation exchange capacity.
|
