Table 9.
The effect of mineral fertilizers on chemical properties of irrigated soil in the Kibray district.
| Treatments | CO2 (%) | Alkalinity |
Cl |
SO4 |
Ca |
Mg |
|||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Total HCO3(%) | Total HCO3, mg/eq | % | mg/eq | % | mg/eq | % | mg/eq | % | mg/eq | ||
| Control | 8.20 | 0.02 | 0.36 | 0.05 | 0,22 | 1.06 | 0,50 | 0.21 | 10.40 | 0.07 | 5.12 |
| N75P50K50 | 7.98 | 0.01 | 0.35 | 0.04 | 0,22 | 1.02 | 0,48 | 0.18 | 9.45 | 0.06 | 4.88 |
| N125P100K100 | 8.15 | 0.23 | 0.32 | 0.03 | 0,21 | 1.00 | 0,46 | 0.17 | 9.88 | 0.05 | 4.62 |
| N100P75K75 + B3Zn6Fe6 | 8.54 | 0.21 | 0.30 | 0.03 | 0,19 | 1.10 | 0,45 | 0.16 | 9.87 | 0.04 | 4.52 |
Data are means of three replicates (n = 3), * asterisk differed significantly at P < 0.05.