Soil great group

Kandiudult

Of the Udult 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 orderUltisolSoil 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.
SuborderUdultUltisol humid climate, well drained.
Great groupKandiudultWithin the Udult 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.

The soils deep reds of Misiones.

Typical effective depth
400 cm

Where it is found

According to the 1:500.000 national map, it covers about 573.096 ha, spread over 13 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.

ProvinceArea
Misiones573.096 ha

Districts where it is most common

It also appears on the detailed maps of: Misiones.

How productive it is

Where it is the main soil of the map unit, the productivity index has a median of 50 (average); half of the units fall between 40 and 51.

Taken from the maps that include this data. A map unit with several soils has a single index, and it is only attributed to the dominant soil.

Subgroups on the maps

Soil series

Series are the specific soils, named after places, that detailed maps describe under this name. Two properties with the same series have the same soil.

Misiones

San Cayetano · Saltito I

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