0-16
16-48
48-69
69-90
Bigaa Series
| Soil Fertility | |
|---|---|
| Soil pH | Moderately to slightly acidic |
| Organic Matter | Low to medium |
| Phosphorus (P) | Low |
| Potassium (K) | Low |
| Nutrient Retention | Medium |
| Base Saturation | Medium |
| Salinity Hazard |
| Physical Soil Quality | |
|---|---|
| Relief | Level to nearly level |
| Water Retention | |
| Drainage | Somewhat poor |
| Permeability | |
| Workability/Tilth | |
| Stoniness | None |
| Rooting Depth | Deep to very deep (soil depth) |
| Flooding | Occasional overflow |
| Erosion |
Surface Soil Type: Fine textured clay
Family name: Very fine, smectitic, isohyperthermic, Ustic Epiaquerts
Very fine textured soil 60 clay content and isohyperthermic 22C temperature regime It is a representative of great group Epiaquerts found in areas with pronounced wet and dry season ustic It has an aquic aqu moisture regime ie the soil is saturated to the surface for a long period of time manifested by its grayish color with or without mottles indicative of poor internal drainage Erts it is a vertisol Latin verto meaning invert Being vertisol it is dominated by hgih shrink swell clays with deep wide cracks and slickensides when dry It is compact very sticky and clayey when wet Though it has moderately high fertility moderately high OM low P low K and medium pH productivity is limited due to its vertic properties resulting to difficulty in tillage Cracks and slickensides could also result in root damage and breakage These type of soils are unstable for engineering purposes