Tama soil and landscape
Soil profile: A representative soil profile of the Tama series; the State Soil of Iowa. (Soil survey of Tama County, Iowa; by Robin J. Wisner, Natural Resources Conservation Service)
Landscape: Tama soils are on interfluves and side slopes on uplands and on treads and risers on stream terraces in river valleys. Slope ranges from 0 to 20 percent. Nearly level to gently sloping areas are cultivated. The principal crops are corn, soybeans, small grains, and legume hays. Steeper slopes are pastured. The native vegetation is big bluestem, little bluestem, switchgrass, and other grasses of the tall grass prairie.
The Tama series is considered one of the most productive of the soils in Iowa that are used for agricultural purposes. It makes up about 825,000 acres in east-central and eastern Iowa. The series was first identified in Black Hawk County, Iowa, in 1917. It has been identified in 26 counties in Iowa. It also has been identified in Illinois, Minnesota, and Wisconsin.
TAXONOMIC CLASS: Fine-silty, mixed, superactive, mesic Typic Argiudolls
Tama soils formed in 48 or more inches of silty loess; under tall prairie grasses with a deep, fibrous root system; and under relatively humid climatic conditions. Over hundreds of years, the grasses have added organic matter to the soils, producing a relatively thick, dark surface layer. In some areas, erosion has significantly affected the properties of the soils. Eroded Tama soils have less total nitrogen and organic matter and more clay in the surface layer than uneroded Tama soils.
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/iowa/IA171/0/t...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/T/TAMA.html
For acreage and geographic distribution, visit:
Tama soil and landscape
Soil profile: A representative soil profile of the Tama series; the State Soil of Iowa. (Soil survey of Tama County, Iowa; by Robin J. Wisner, Natural Resources Conservation Service)
Landscape: Tama soils are on interfluves and side slopes on uplands and on treads and risers on stream terraces in river valleys. Slope ranges from 0 to 20 percent. Nearly level to gently sloping areas are cultivated. The principal crops are corn, soybeans, small grains, and legume hays. Steeper slopes are pastured. The native vegetation is big bluestem, little bluestem, switchgrass, and other grasses of the tall grass prairie.
The Tama series is considered one of the most productive of the soils in Iowa that are used for agricultural purposes. It makes up about 825,000 acres in east-central and eastern Iowa. The series was first identified in Black Hawk County, Iowa, in 1917. It has been identified in 26 counties in Iowa. It also has been identified in Illinois, Minnesota, and Wisconsin.
TAXONOMIC CLASS: Fine-silty, mixed, superactive, mesic Typic Argiudolls
Tama soils formed in 48 or more inches of silty loess; under tall prairie grasses with a deep, fibrous root system; and under relatively humid climatic conditions. Over hundreds of years, the grasses have added organic matter to the soils, producing a relatively thick, dark surface layer. In some areas, erosion has significantly affected the properties of the soils. Eroded Tama soils have less total nitrogen and organic matter and more clay in the surface layer than uneroded Tama soils.
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/iowa/IA171/0/t...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/T/TAMA.html
For acreage and geographic distribution, visit: