Table 3.
Descriptive statistical analysis of soil factors.
| Soil Factor | Mean ± Standard Error | Range (Max–Min) | Standard Deviation | Median | Interquartile Range (IQR) |
|---|---|---|---|---|---|
| pH | 8 ± 0.0736 | 1.1 (8.5–7.4) | 0.329 | 8.1 | 0.55 |
| T.D.S. (ppm) | 1077.65 ± 508.726 | 9,758 (9840–82) | 2,275.094 | 360.5 | 533 |
| E.C. (dS/m) | 1.684 ± 0.795 | 15.247 (15.375–0.128) | 3.555 | 0.563 | 0.832 |
| Ca+2 (meq/L) | 6.353 ± 2.537 | 48.3 (49–0.7) | 11.346 | 2.65 | 2.952 |
| Mg+2 (meq/L) | 3.053 ± 1.366 | 27.78 (28–0.22) | 6.108 | 1.27 | 1.37 |
| Na+ (meq/L) | 6.025 ± 3.421 | 62.79 (63–0.21) | 15.301 | 1.15 | 2.205 |
| K+ (meq/L) | 1.18 ± 0.565 | 11.096 (11.2–0.104) | 2.528 | 0.165 | 1.288 |
| CO3−2 (%) | 0.225 ± 0.0231 | 0.3 (0.45–0.15) | 0.103 | 0.15 | 0.15 |
| HCO3− (%) | 0.32 ± 0.0153 | 0.305 (0.61–0.305) | 0.0682 | 0.305 | 0 |
| Cl− (meq/L) | 4.532 ± 2.278 | 42.5 (43–0.5) | 10.189 | 1.235 | 1.37 |
| SO4−2 (meq/L) | 9.57 ± 3.961 | 74.8 (76–1.2) | 17.714 | 3.9 | 4.75 |
| Organic carbon (%) | 0.888 ± 0.079 | 1.2 (1.32–0.12) | 0.353 | 0.84 | 0.66 |
| Sand (%) | 83.333 ± 0.19 | 3.05 (84.7–81.65) | 0.851 | 83.4 | 1.428 |
| Silt (%) | 13.31 ± 0.137 | 1.9 (14.3–12.4) | 0.613 | 13.4 | 1.15 |
| Clay (%) | 3.357 ± 0.165 | 2.64 (4.7–2.06) | 0.739 | 3.325 | 1.087 |
pH = soil reaction, T.D.S. = total dissolved salts, E.C. = electrical conductivity, Ca2+ = calcium, Mg2+ = magnesium, Na+ = sodium, K+ = potassium, CO32− = carbonates, HCO3− = bicarbonates, Cl− = chlorides, SO42− = sulfates, ppm = parts per million, dS/m = deciSiemens per meter and meq/L = milliequivalents per liter.