0-19
19-32
32-51
51-72
72-107
Cauayan Series
| Soil Fertility | |
|---|---|
| Soil pH | Extremely to strongly acid |
| Organic Matter | Medium |
| Phosphorus (P) | Low |
| Potassium (K) | Low |
| Nutrient Retention | Low |
| Base Saturation | Very low |
| Salinity Hazard |
| Physical Soil Quality | |
|---|---|
| Relief | undulating to rolling |
| Water Retention | |
| Drainage | Moderate |
| Permeability | |
| Workability/Tilth | |
| Stoniness | Gravels |
| Rooting Depth | Deep to very deep (soil depth) |
| Flooding | None |
| Erosion |
Surface Soil Type: Silt loam to Clay loam
Family name: Very fine, kaolinitic, isohyperthermic, Typic Plinthustults
Very fine textured soil 60 clay content and isohyperthermic 22C temperature regime The clay fraction is dominated by kaolinite kaolinitic in which individual soil particles of clay maybe quite coarse and the soil may not feel like it has as much clay as is actually present Kaolinitic soils have poor nutrient retention soil structure maybe quite good giving the soil better air and the CEC is low It is a typical represntative of great group Plinthustults Plinth from the word plinthite Greek plinthos brick an iron rich humus poor clay occurring as dark red hardened mottles that is formed when the horizon is saturated with water at some reason and exposed to repeated wetting and drying It can irreversibly form into hardpan upon continuous wetting and drying and exposure to heat of the sun it belongs to the order ultisol found in areas with pronounced wet and dry season ust from the word ustic Ultisol soils are strongly weathered soil thus have low pH and low fertility medium OM low P low K This soil has poor internal drainage Requires application of lime organic matter and appropriate amount of fertilizer Crops common in the area maybe grown with the combination of erosion prevention and water control practices