Table 1. Some of physical and chemical characteristics of experimental soils.
| Properties | Niksar | Kazova | Artova | |||
|---|---|---|---|---|---|---|
| 2013 | 2014 | 2013 | 2014 | 2013 | 2014 | |
| pH | 8.13 | 8.09 | 8.29 | 8.33 | 7.79 | 7.88 |
| Total Salt (%) | 0.85 | 0.60 | 0.33 | 0.25 | 0.24 | 0.26 |
| Clay (%) | 45.2 | 36.1 | 31.9 | 25.5 | 24.9 | 23.7 |
| Sand (%) | 21.9 | 17.1 | 32.7 | 38.2 | 52.3 | 71.0 |
| Silt (%) | 32.3 | 48.0 | 35.1 | 35.5 | 25.8 | 25.8 |
| CaCO3 (%) | 40.8 | 20.9 | 23.1 | 22.2 | 8.5 | 5.0 |
| P2O5 (kg ha−1) | 172.0 | 129.0 | 70.1 | 71.0 | 73.5 | 55.8 |
| K2O (kg ha−1) | 1165.2 | 1975 | 1294.9 | 1278.7 | 477.1 | 869.0 |
| Organic Matter (%) | 3.48 | 2.99 | 2.00 | 2.59 | 2.31 | 2.09 |