Stuttgart soil series is an officially designated state symbol, the

State Soil This is a list of U.S. state soils. A state soil is a soil that has special significance to a particular U.S. state, state. Each state in the United States has selected a state soil, twenty of which have been legislatively established. These offic ...

Arkansas Arkansas ( ) is a landlocked state in the South Central United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the O ...

. Stuttgart soils are named for the City of Stuttgart in southeast Arkansas. They are used primarily for crops, mainly

rice Rice is the seed of the grass species '' Oryza sativa'' (Asian rice) or less commonly ''Oryza glaberrima'' (African rice). The name wild rice is usually used for species of the genera '' Zizania'' and '' Porteresia'', both wild and domesticat ...

, soybeans, small

grains A grain is a small, hard, dry fruit (caryopsis) – with or without an attached hull layer – harvested for human or animal consumption. A grain crop is a grain-producing plant. The two main types of commercial grain crops are cereals and legumes ...

, and corn. The Stuttgart area is also famous for its large fall and winter population of ducks and

geese A goose ( : geese) is a bird of any of several waterfowl species in the family Anatidae. This group comprises the genera '' Anser'' (the grey geese and white geese) and ''Branta'' (the black geese). Some other birds, mostly related to the she ...

(Stuttgart bills itself as "The Rice and Duck Capital of the World"). These waterfowl feed heavily on the crops grown on the Stuttgart soils. Stuttgart soils have been mapped on about {{convert, 200000, acre, km2 in Arkansas. The Stuttgart series consists of very deep, moderately well drained or somewhat poorly drained soils formed in silty and clayey

alluvium Alluvium (from Latin ''alluvius'', from ''alluere'' 'to wash against') is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings. ...

. These level to gently sloping soils are on the Grand Prairie in the Lower

Mississippi Mississippi () is a state in the Southeastern region of the United States, bordered to the north by Tennessee; to the east by Alabama; to the south by the Gulf of Mexico; to the southwest by Louisiana; and to the northwest by Arkansas. Miss ...

Valley. They are classified as alfisols, but their high content of

montmorillonite Montmorillonite is a very soft phyllosilicate group of minerals that form when they precipitate from water solution as microscopic crystals, known as clay. It is named after Montmorillon in France. Montmorillonite, a member of the smectite gro ...

puts them close to the

vertisol A vertisol, or vertosol, is a soil type in which there is a high content of expansive clay minerals, many of them known as montmorillonite, that form deep cracks in drier seasons or years. In a phenomenon known as argillipedoturbation, alternate ...

class. Because of the surface layer of silt loam and slow permeability in the clayey subsoil, the soils are ideal for rice production.

Sources

Official Series Description - Stuttgart
Pedology Soil in the United States Geology of Arkansas Symbols of Arkansas Types of soil

See also

Sources