pH in H2O | 6.9 ± 0.10 | 6.9 ± 0.02 | 7.0 ± 0.07 | 6.9 ± 0.00 | 6.8 ± 0.05 | 6.8 ± 0.06 |
pH in CaCl2 | 6.8 ± 0.08 | 6.8 ± 0.03 | 6.8 ± 0.05 | 7.6 ± 0.91 | 6.6 ± 0.05 | 6.7 ± 0.17 |
Organic matter (g/kg) | 24 ± 1.5 | 24 ± 3.1 | 22 ± 1.2 | 20 ± 1.7 | 22 ± 5.2 | 18 ± 2.0 |
Biological respiration (g/kg C/wk) | 15.0 ± 3.0 | 12.0 ± 4.9 | 11.0 ± 5.1 | 9.0 ± 3.6 | 10.0 ± 3.8 | 13.0 ± 4.6 |
Total CO2 output (mg/kg/wk) | 715 ± 162 | 589 ± 265 | 512 ± 243 | 369 ± 161 | 500 ± 244 | 488 ± 209 |
Water soluble aggregates (g/kg) | 250 ± 30 | 300 ± 21 | 233 ± 24 | 290 ± 29 | 210 ± 21 | 217 ± 22 |
Conductivity (mmhos/cm) | 0.4 ± 0.07 | 0.3 ± 0.07 | 0.2 ± 0.00 | 0.2 ± 0.03 | 0.2 ± 0.00 | 0.2 ± 0.09 |
Available phosphorus (mg/kg) | 10.7 ± 2.7 | 10.3 ± 2.3 | 8.0 ± 0.0 | 10.7 ± 2.7 | 8.0 ± 0.0 | 8.0 ± 0.0 |
Nitrate (mg/kg) | 30.7 ± 8.2 | 33.3 ± 6.8 | 12.0 ± 1.5 | 20.0 ± 9.1 | 15.0 ± 2.0 | 16.0 ± 4.5 |
Reserve phosphorus (mg/kg) | 18.7 ± 4.7 | 24.3 ± 2.8 | 11.0 ± 3.0 | 17.7 ± 8.7 | 12.3 ± 3.0 | 13.3 ± 5.3 |
Chloride (mg/kg) | 4.7 ± 0.9 | 4.7 ± 0.7 | 3.0 ± 0.6 | 4.3 ± 0.3 | 11.0 ± 6.7 | 7.33 ± 2.8 |
Sulfate (mg/kg) | 32.3 ± 23.3 | 6.0 ± 1.5 | 4.0 ± 1.0 | 6.3 ± 2.4 | 5.7 ± 3.7 | 3.7 ± 0.3 |
Potassium (mg/kg) | 194 ± 25 | 208 ± 12 | 210 ± 53 | 183 ± 25 | 147 ± 31 | 163 ± 14 |
Sodium (mg/kg) | 52 ± 12 | 58 ± 14 | 62 ± 20 | 54 ± 16 | 67 ± 23 | 54 ± 15 |
Calcium (mg/kg) | 2889 ± 386 | 2491 ± 157 | 2938 ± 320 | 2259 ± 401 | 2270 ± 346 | 2193 ± 135 |
Magnesium (mg/kg) | 925 ± 66 | 839 ± 46 | 1168 ± 211 | 930 ± 179 | 1138 ± 139 | 1041 ± 42 |
Total CEC (cmol+/kg) | 23.9 ± 1.7 | 20.9 ± 0.7 | 25.9 ± 3.8 | 21.1 ± 3.6 | 22.5 ± 3.3 | 22.3 ± 1.5 |