Key to Subgroups
FEEP. Other Haplusterts. Typic Haplusterts
Description of Subgroups
FEEP. Typic Haplusterts.—The Typic subgroup of Haplusterts is centered on deep or very deep soils that do not have significant amounts of salts or sodium. In addition, these soils do not have a petrocalcic horizon, soil moisture regimes that border on aridic or udic, a calcic or gypsic horizon within a depth of 150 cm, a layer with less than 27 percent clay, or light colored surface layers. In the United States, these soils occur in Texas, New Mexico, Oklahoma, South Dakota, Hawaii, and Puerto Rico. They are used for crop production as well as rangeland.
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