Soil great group
Kandihumult
Of the Humult suborder; it has a kandic horizon: accumulation of low activity clay, typical of soils very washed tropical.
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 | Ultisol | Soil very washed out by a warm and humid climate, with a clay accumulation horizon and low base saturation: acidic and poor in calcium and magnesium. |
|---|---|---|
| Suborder | Humult | Ultisol with a lot of organic matter at depth. |
| Great group | Kandihumult | Within the Humult suborder, it has a kandic horizon: accumulation of low activity clay, typical of soils very washed tropical. |
What it means for farming
Deep and well structured, but acidic and of low natural fertility. They are the soils reds of Misiones: grass, tea, forestry, and agriculture with liming and fertilization.
- Most common surface texture
- Clay
- Most common drainage
- Well drained
- Typical effective depth
- 150 cm
Where it is found
According to the 1:500.000 national map, it covers about 349.895 ha, spread over 8 districts.
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National map units that list it. The scale is 1:500.000: good for seeing the region, not a single property.
| Province | Area |
|---|---|
| Corrientes | 245.351 ha |
| Misiones | 104.545 ha |
Districts where it is most common
Subgroups on the maps
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)