Soil subgroup

Peludert árgico

It has a clay accumulation horizon.

Peludert 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 Hapludert.

What the name says

Soil Taxonomy names are built from parts, and each part says something about the soil. From general to specific:

Taxonomic orderVertisolSoil very clayey, with clays that swell when wet and contract when dry: when dry it opens wide and deep cracks, and when wet the layers slide against each other leaving slickensides.
SuborderUdertVertisol humid climate: cracks open for a short time each year.
Great groupPeludertWithin the Udert suborder, it has dark, low chroma colors at the top.
SubgroupárgicoIt has a clay accumulation horizon.

What it means for farming

Fertile and with a lot of water retained, but difficult: they become waterlogged, when wet they become sticky and difficult to work with, and when dry they crack. They ask for tillage at the right time. They are the typical soil of much of Entre Ríos.

It is the Vertisol of Entre Ríos in the old soil survey maps: the current classification changes it to Hapludert.

Most common surface texture
Silt clay loam
Most common drainage
Moderate
Typical effective depth
50 cm

Where it is found

According to the 1:500.000 national map, it covers about 476.574 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.

ProvinceArea
Entre Ríos476.574 ha

Districts where it is most common

It also appears on the detailed maps of: Entre Ríos.

How productive it is

Where it is the main soil of the map unit, the productivity index has a median of 21 (low); half of the units fall between 16 and 24.

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.

Other Peludert subgroups

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.

Entre Ríos

Santiago · Don Guillermo · Urdinarrain · La Stella · María Dolores · Guardamonte · Los Laureles · La Monona · La Concordia · Mugherli · Hernández · Don Mercier · El Recreo · Tamberas · Los Capones · Rancho Grande · San Gustavo · Dorado · Cuchilla Redonda · El Puesto · Nueva Vizcaya · Estancia El Sauce · La Cañada

Soils it shares map units with

Several soils share each map unit. These are the ones most often found alongside this one: on a property, you will likely find them in the nearby low ground or on the next rise.

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