LOCATION TOWOSAHGY MO
Established Series
Rev. RLT-LJG
11/2018
TOWOSAHGY SERIES
The Towosahgy series consists of very deep, well drained soils on ridgetops of old natural levees. These soils formed in loamy alluvium over sandy sediments in the Mississippi River flood plains. Permeability is moderate in the solum and rapid in the underlying material. Slopes range from 0 to 3 percent. Mean annual temperature is about 61 degrees F, and mean annual precipitation is about 47 inches.
TAXONOMIC CLASS: Fine-loamy over sandy or sandy-skeletal, mixed, superactive, thermic Typic Hapludolls
TYPICAL PEDON: Towosahgy loam on a 2 percent slope in a cultivated field. (Colors are for moist soil unless otherwise specified.)
Ap--0 to 5 inches; very dark grayish brown (10YR 3/2) fine sandy loam; grayish brown (10YR 5/2) dry; moderate fine granular and subangular blocky structure; friable; common fine roots; few very fine pores; slightly acid; abrupt smooth boundary. (4 to 8 inches thick)
A12--5 to 18 inches; very dark gray (10YR 3/1) fine sandy loam; gray (10YR 5/1) dry; moderate fine and medium subangular blocky structure; firm; common fine roots; few fine pores; slightly acid; abrupt smooth boundary. (6 to 15 inches thick)
2AC--18 to 22 inches; dark brown (10YR 3/3) loamy fine sand; weak fine subangular blocky structure; friable; common fine roots; few very fine pores; slightly acid; clear smooth boundary. (0 to 10 inches thick)
2C1--22 to 50 inches; brown (10YR 4/3) fine sand; single grained; loose; slightly acid; clear smooth boundary.
2C2--50 to 60 inches; brown (10YR 5/3) loamy fine sand; single grained; very friable; moderately acid.
TYPE LOCATION: Mississippi County, Missouri; about 5 miles east and 2 miles south of East Prairie, 2,300 feet north and 2,600 feet east of the southwest corner of sec. l2, T. 24 N., R. 16 E. Latitude 36 degrees, 44 minutes, 20.1 seconds N., longitude 89 degrees, 16 minutes, 28.4 seconds W., NAD83.
RANGE IN CHARACTERISTICS: Depth to the contrasting sandy material is about 15 to 28 inches. Reaction is medium acid to neutral.
The A horizon has hue of 10YR, value of 2 or 3, and chroma of 1 to 3. It is dominantly fine sandy loam, loam and clay loam, but the ranges to silt loam and silty clay loam. The average clay content is 18 to 30 percent.
The 2AC horizon has hue of 10YR, value of 3 or 4 and chroma of 3 or 4. It is loamy fine sand, loamy sand, or sandy loam.
The 2C horizon has hue of 10YR or 2.5YR, value of 4 or 5, and chroma of 3 or 4. Some pedons have iron depletions with chroma of 2 below depths of 40 inches. It is loamy fine sand, loamy sand, fine sand, or sand but ranges to include fine sandy loam and sandy loam below depths of 40 inches. In some pedons it is stratified below depths of 40 inches.
COMPETING SERIES: There are no other soils in this family. Similar soils in closely related families are the
Arrington,
Cannon,
Gowton,
Redport,
Staser, and
Verdigris series. Arrington, Redport, and Verdigris soils are fine-silty. Cannon, Gowton and Staser soils are fine-loamy.
GEOGRAPHIC SETTING: Towosahgy soils are on ridgetops of old natural levees of the Mississippi River. The soils formed in alluvium; the upper part is loamy and the lower part is sandy. Slope gradients range from 0 to 3 percent. The mean annual temperature ranges from 58 to 64 degrees F, and the mean annual precipitation ranges from 42 to 52 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Bowdre,
Cooter,
Malden,
Reelfoot,
Tiptonville and
Tunica soils. Bowdre soils are clayey over loamy and are on similar landscapes. Cooter soils are clayey over sandy and occur in old stream channels. Malden soils are sandy throughout the control section and occur on slightly higher terrace positions. Reelfoot and Tiptonville soils are fine-silty and occur on lower natural levees. Tunica soils are clayey over loamy, lack a mollic epipedon and occur in depressional areas.
DRAINAGE AND PERMEABILITY: Well drained. Runoff is low. Permeability is moderate in the solum and rapid in the underlying material.
USE AND VEGETATION: Most of the Towosahgy soils are farmed. Crops commonly grown are wheat and soybeans. This soil is often double cropped. Corn, cotton and grain sorghum are raised as rotation crops. Corn responds well to irrigation.
DISTRIBUTION AND EXTENT: The Mississippi River Valley area (MLRA 131) of southeast Missouri. The series is of small extent; the acreage is about 3,500 acres.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: AUBURN, ALABAMA
SERIES ESTABLISHED: Mississippi County, Missouri, 1978.
REMARKS: Partial data are available for the type location--S78MO-133-001.
National Cooperative Soil Survey
U.S.A.