Table 2. Soil characteristics at the experimental site in 2007.
| Depth (cm) | pH (H2O) | Sand (%) | Silt (%) | Clay (%) | Textural classa | Dry bulk Density (g cm−3) | Total organic matter (g kg−1) | Total nitrogen (g N kg−1) | Available nitrogen (mg N kg−1) | Available phosphorus (mg P kg−1) | Available potassium (mg K kg−1) |
| 0–30 | 8.5 | 25 | 58 | 17 | SSL | 1.47 | 16.7 | 1.40 | 148 | 4.1 | 79.3 |
| 30–60 | 7.74 | 22 | 60 | 18 | L | 1.40 | 10.9 | 0.85 | 72.0 | 2.1 | 54.4 |
| 60–90 | 7.78 | 31 | 55 | 14 | L | 1.45 | 7.8 | 0.64 | 70.1 | 0.44 | 36.9 |
| 90–150 | 7.76 | 15 | 59 | 26 | SCL | 1.57 | 6.5 | 0.38 | 49.8 | 0.17 | 27.8 |
| 150–200 | 7.74 | 18 | 47 | 35 | GCL | 1.43 | 5.4 | 0.28 | 38.9 | 0.13 | 21.9 |
| 200–250 | 7.77 | 15 | 35 | 50 | C | 1.51 | 4.2 | 0.15 | 30.1 | 0.09 | 13.9 |
| 250–300 | 7.75 | 12 | 35 | 53 | C | 1.50 | 3.0 | 0.86 | 25.9 | 0.04 | 7.1 |
a
SSL: Silty sandy loam; L: Loam; SCL: Silty clay loam: GCL: Gravely clay loam; C = Clay.