soil map units where 19A Toguru is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Viti Levu |
| Landscape position | Inland margins of saline areas in the lowlands and foothills |
| Soil parent material | estuarine alluvium from acidic rocks |
| Slope | Flat to near level (0-1°). Slight hummocky microrelief. |
| Surface outcrops | No surface rock outcrops. No surface stones or boulders. |
| Brief soil profile description | - |
| Soil profile texture | 0-68cm sandy loam. 68-92cm loam. |
| Minimum effective rooting depth | <100cm. High seasonal water table and low subsoil nutrient status including high aluminium at 46-68cm. |
| Soil pH (acidity) | 0-46cm moderately acid. 46-68cm extremely acid. 68-92cm slightly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Very low potassium (K) below 23cm. Phosphorus (P) low. |
| Soil moisture regime | aquic |
| Susceptibility to drought | Soil moisture deficits are never experienced. |
| Soil drainage | Very poorly drained. |
| Susceptibility to waterlogging | In normal years the water table fluctuates between 70cm (summer) and 100cm (winter) but can come to the surface for short periods. |
| Susceptibility to flooding | In normal years and because of high water table and topographic positions flooding can occur for up to 12 days on 2-3 occasions sometime in the period November to April. |
