TABLE 1.
Soil or manure | Bulk density (g/cm3) | Pore density (g/cm3) | % Solids | Pore space (%) | % Organic mattera | % Sandb | % Siltb | % Clayb | NO3 content (μg/g) | NH4 content (μg/g) | PO4 content (μg/g) | Total organic carbon content (μg/g) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Dairy manure | NDc | ND | ND | ND | ND | ND | ND | ND | 0.98 | 11.90 | 34.05 | 2.21 |
Sandy loam | 1.08 | 2.36 | 45.90 | 54.10 | 2.33 | 69.30 | 9.32 | 21.38 | 8.43 | 1.34 | 0.69 | 1.42 |
Silt loam | 0.86 | 1.98 | 43.48 | 56.52 | 4.45 | 19.53 | 53.14 | 27.33 | 22.19 | 1.53 | 1.22 | 1.26 |
Clay loam | 1.08 | 2.34 | 46.10 | 53.90 | 2.86 | 27.85 | 41.31 | 21.49 | 21.49 | 4.23 | 2.85 | 1.10 |
Determined by the oven method.
Sand, silt, and clay contents were determined by the hydrometer method after oxidation with H2O2; this and other soil analysis methods used are described in Methods of Soil Analysis (19).
ND, not done or not applicable.