0-13
13-26
26-48
48-61
Ilagan Series
| Soil Fertility | Low to moderate |
|---|---|
| Soil pH | Slightly acid (5.0-6.0) |
| Organic Matter | Low |
| Phosphorus (P) | Low |
| Potassium (K) | Low |
| Nutrient Retention | High |
| Base Saturation | High |
| Salinity Hazard | None |
| Physical Soil Quality | |
|---|---|
| Relief | Rolling to hilly |
| Water Retention | Moderate |
| Drainage | Poor internal |
| Permeability | Moderate |
| Workability/Tilth | Moderate |
| Stoniness | Gravels and concretions |
| Rooting Depth | Deep (>1m) |
| Flooding | |
| Erosion | Moderate to severe |
Surface Soil Type: Sandy loam, eroded phase
Family name: Fine, mixed, isohyperthermic, Typic Haplustalfs
An old soil which has undergone extensive weathering but has retained a high base status in its horizon alf Alfisol and which exhibits minimum complexity in its horizonation hapl This can be found in areas with pronounced wet and dry seasons ust The mean annual soil temperature is higher than 22C isohyperthermic