Table 2

Means and standard errors (n = 4) from initial soil samples taken at the start of the experiment in 1996 at three depths (0–15, 15–30, and 30–45 cm) from biodynamic (BD) and organic plots before treatments were applied.

SoilBDOrganicBDOrganicBDOrganic
property(0–15 cm)(0–15 cm)(15–30 cm)(15–30 cm)(30–45 cm)(30–45 cm)
pH in H2O6.9 ± 0.106.9 ± 0.027.0 ± 0.076.9 ± 0.006.8 ± 0.056.8 ± 0.06
pH in CaCl26.8 ± 0.086.8 ± 0.036.8 ± 0.057.6 ± 0.916.6 ± 0.056.7 ± 0.17
Organic matter (g/kg)24 ± 1.524 ± 3.122 ± 1.220 ± 1.722 ± 5.218 ± 2.0
Biological respiration (g/kg C/wk)15.0 ± 3.012.0 ± 4.911.0 ± 5.19.0 ± 3.610.0 ± 3.813.0 ± 4.6
Total CO2 output (mg/kg/wk)715 ± 162589 ± 265512 ± 243369 ± 161500 ± 244488 ± 209
Water soluble aggregates (g/kg)250 ± 30300 ± 21233 ± 24290 ± 29210 ± 21217 ± 22
Conductivity (mmhos/cm)0.4 ± 0.070.3 ± 0.070.2 ± 0.000.2 ± 0.030.2 ± 0.000.2 ± 0.09
Available phosphorus (mg/kg)10.7 ± 2.710.3 ± 2.38.0 ± 0.010.7 ± 2.78.0 ± 0.08.0 ± 0.0
Nitrate (mg/kg)30.7 ± 8.233.3 ± 6.812.0 ± 1.520.0 ± 9.115.0 ± 2.016.0 ± 4.5
Reserve phosphorus (mg/kg)18.7 ± 4.724.3 ± 2.811.0 ± 3.017.7 ± 8.712.3 ± 3.013.3 ± 5.3
Chloride (mg/kg)4.7 ± 0.94.7 ± 0.73.0 ± 0.64.3 ± 0.311.0 ± 6.77.33 ± 2.8
Sulfate (mg/kg)32.3 ± 23.36.0 ± 1.54.0 ± 1.06.3 ± 2.45.7 ± 3.73.7 ± 0.3
Potassium (mg/kg)194 ± 25208 ± 12210 ± 53183 ± 25147 ± 31163 ± 14
Sodium (mg/kg)52 ± 1258 ± 1462 ± 2054 ± 1667 ± 2354 ± 15
Calcium (mg/kg)2889 ± 3862491 ± 1572938 ± 3202259 ± 4012270 ± 3462193 ± 135
Magnesium (mg/kg)925 ± 66839 ± 461168 ± 211930 ± 1791138 ± 1391041 ± 42
Total CEC (cmol+/kg)23.9 ± 1.720.9 ± 0.725.9 ± 3.821.1 ± 3.622.5 ± 3.322.3 ± 1.5