Soil great group
Haplortox
Of the Ortox suborder; it It is the simplest of the suborder: it does not have a clay horizon or any other feature that places it in a more specific group..
Haplortox is a name from the 1975 taxonomy, which many INTA soil survey maps were made with. The current edition no longer has this group: today it would be classified as Hapludox.
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 | Oxisol | Soil extremely weathered tropical: there are almost no minerals left to provide nutrients and the clay is of low activity, rich in iron and aluminum oxides. |
|---|---|---|
| Suborder | Ortox | Oxisol humid climate without other features. |
| Great group | Haplortox | Within the Ortox suborder, it It is the simplest of the suborder: it does not have a clay horizon or any other feature that places it in a more specific group.. |
What it means for farming
Good physical structure but very low capacity to retain nutrients. In Argentina they appear only in the north of Misiones.
Where it is found
According to the 1:500.000 national map, it covers about 2.412 ha, spread over 1 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 |
|---|---|
| Misiones | 2.412 ha |
Districts where it is most common
Subgroups on the maps
- Haplortox epiácuico
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)