Soil great group
Plintacualf
Of the Acualf suborder; it has plinthite: iron-rich red spots that harden irreversibly as they dry.
What the name says
Soil Taxonomy names are built from parts, and each part says something about the soil. From general to specific:
| Taxonomic order | Alfisol | Soil with a clay accumulation horizon (argillic or natric) and good base saturation, but without the thick, dark surface of a Molisol. |
|---|---|---|
| Suborder | Acualf | Alfisol with excess water: saturated near the surface part of the year, with redox depletions. |
| Great group | Plintacualf | Within the Acualf suborder, it has plinthite: iron-rich red spots that harden irreversibly as they dry. |
What it means for farming
Acceptable fertility, but the surface layer is thinner and poor in organic matter. In the Pampas region many Alfisoles are sodic or floodable (Natracualfes) and are left for livestock.
Where it is found
According to the 1:500.000 national map, it covers about 3.812 ha, spread over 1 districts.
Loading map…
National map units that list it. The scale is 1:500.000: good for seeing the region, not a single property.
| Province | Area |
|---|---|
| Corrientes | 3.812 ha |
Districts where it is most common
Subgroups on the maps
- Plintacualf típico
The definitions are a plain-language summary of the USDA Keys to Soil Taxonomy. The formal definition includes thickness, color and percentage thresholds that are left out here.
Sources
- Soil Survey Staff. (2014). Claves para la Taxonomía de Suelos, 12.ª edición. USDA - Natural Resources Conservation Service. · Dominio público (USDA)
- INTA · Dominio público (carta 1:500.000)