Table 1.1-2. Ideal soil bulk densities and root growth limiting bulk densities for soils of different textures.
| Soil texture | Ideal bulk densities | Bulk densities that may affect root growth | Bulk densities that may restrict root growth |
|---|---|---|---|
| g/cm³ | |||
| Source: generalized from USDA-NRCS soil quality test kit guide. | |||
| Sand, loamy sand | <1.60 | 1.70 | >1.80 |
| Sandy loam, loam, sandy clay loam, clay loam, silt, silt loam, silty clay loam | <1.40 | 1.60 | >1.75 |
| Sandy clay, silty clay, clay | <1.10 | 1.50 | >1.60 |
