LOCATION FREEBURG MO

Established Series
Rev. RWF-RLT-TJE
05/2020

FREEBURG SERIES

The Freeburg series consists of very deep, somewhat poorly drained soils that formed in silty alluvial sediments. These soils are on high flood plains and stream terraces along small streams and creeks, and on upland footslopes. Slope ranges from 0 to 9 percent. Mean annual temperature is about 13.3 degrees C (56 degrees F), and mean annual precipitation is about 914 millimeters (36 inches).

TAXONOMIC CLASS: Fine-silty, mixed, superactive, mesic Aquic Hapludalfs

TYPICAL PEDON: Freeburg silt loam, on a 1 percent, slightly concave, south-facing slope in a cultivated field at an elevation of 229 meters (750 feet) above mean sea level. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 18 centimeters (0 to 7 inches); dark grayish brown (10YR 4/2) silt loam, light brownish gray (10YR 6/2) dry; strong fine granular structure; very friable; neutral; abrupt smooth boundary. [15 to 25 centimeters (6 to 10 inches thick)]

E--18 to 30 centimeters (7 to 12 inches); brown (10YR 5/3) silt loam; moderate fine granular structure; very friable; neutral; clear smooth boundary. [0 to 26 centimeters (0 to 10 inches thick)]

Bt1--30 to 48 centimeters (12 to 19 inches); yellowish brown (10YR 5/4), dark grayish brown (10YR 4/2), and dark yellowish brown (10YR 4/4) silty clay loam; moderate medium subangular blocky structure; friable; few faint clay films on faces of peds; few fine iron-manganese concretions; the areas of dark grayish brown are iron depletions; moderately acid; gradual wavy boundary.

Bt2--48 to 76 centimeters (19 to 30 inches); brown (10YR 5/3) and yellowish brown (10YR 5/4) clay loam; coatings of light brownish gray (10YR 6/2) on faces of peds; strong medium and coarse angular blocky structure; firm; many faint dark yellowish brown clay films on faces of peds; few fine iron-manganese concretions; very strongly acid; gradual smooth boundary. [Combined thickness of the Bt horizon is 30 to 178 centimeters (12 to 70 inches).]

BCg1--76 to 122 centimeters (30 to 48 inches); gray (10YR 5/1) silty clay loam; moderate medium and coarse subangular blocky structure; friable; many medium distinct yellowish brown (10YR 5/4) masses of oxidized iron throughout; common fine iron-manganese concretions; strongly acid; gradual smooth boundary. [25 to 51 centimeters (10 to 20 inches thick)]

BCg2--122 to 152 centimeters (48 to 60 inches); gray (10YR 5/1) silty clay loam; weak medium subangular blocky structure; friable; many medium prominent yellowish brown (10YR 5/6) masses of oxidized iron throughout; common fine iron-manganese concretions; strongly acid.

TYPE LOCATION: Howard County, Missouri; about 4 miles northwest of Bunker Hill; 1200 feet south and 1700 feet east of the northwest corner of sec. 35, T. 52 N., R. 15 W; USGS Higbee topographic quadrangle; lat. 39 degrees 15 minutes 46 seconds N. and long. 92 degrees 34 minutes 21 seconds W., WGS84.

RANGE IN CHARACTERISTICS:
Thickness of the solum: 102 to 152 centimeters (40 to 60 inches) or more
Particle-size control section: averages 18 to 35 percent clay
Series control section: very strongly acid to neutral throughout

Ap horizon:
Hue: 10YR
Value: 3 to 5
Chroma: 2 or 3
Texture: silt loam or loam

A horizon, where present:
Thickness: 2.5 to 13 centimeters (1 to 5 inches)
Hue: 10YR
Value:3
Chroma: 2

E horizon
Hue: 10YR
Value: 4 to 7
Chroma: 2 to 4
Texture: silt loam or loam

Bt horizon:
Hue: 7.5YR or 10YR
Value: 4 or 5
Chroma: 3 to 6, with few to common iron depletions with chroma of 2 or less, or has no clear matrix and a mixture of these colors containing less than 30 percent chroma of 2 or less
Texture: silt loam, silty clay loam, or clay loam

Btg horizon (where present):
Hue: multicolored; 7.5YR or 10YR
Value: 4 to 6
Chroma: 1 to 6
Texture: silty clay loam, silt loam, or clay loam

BCg horizon, and Cg horizon (where present):
Hue: 7.5YR or 10YR
Value: 4 or 5
Chroma: 1 or 2, with common or many masses of oxidized iron with higher chroma
Texture: silty clay loam, clay loam, or silt loam

COMPETING SERIES: These are the Appleriver, Blair, Bunkum, Fishhook, Geff, Glenford, Keene, Muren, Reesville, Sugarvalley, Torox, and Xenia series. Appleriver soils have a paralithic contact within a depth of 152 centimeters (60 inches). Blair and Fishhook soils have rock fragments within the series control section. Bunkum, Geff, and Keene soils have a lithologic discontinuity within a depth of 152 centimeters (60 inches). Glenford soils have stratification of textures within the series control section. Muren soils formed in loess on loess hills and have an apparent water table. Reesville, Sugarvalley, Torox, and Xenia soils have carbonates within a depth of 152 centimeters (60 inches).

GEOGRAPHIC SETTING: The Freeburg soils are on high flood plains and stream terraces along small streams and creeks, and on upland footslopes. Slope gradients are commonly 0 to 4 percent, but range to 9 percent. The soils formed in alluvial sediments washed from loess or till soils of the nearby uplands. Mean annual temperature ranges from 12.2 to 15.0 degrees C (54 to 59 degrees F). Mean annual precipitation ranges from 787 to 1,041 millimeters (31 to 41 inches).

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Chariton, Lindley, Mandeville, Moniteau, Nodaway, Westerville, and Winfield soils. The moderately well drained Lindley and Winfield soils, and the moderately deep Mandeville soils are on adjacent uplands. The fine-textured Chariton soils and the poorly drained Moniteau soils are on similar landscapes. The well drained Nodaway and the poorly drained Westerville soils are on adjacent flood plains.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Somewhat poorly drained. Depth to the top of a perched seasonal high water table ranges from 30 to 76 centimeters (1.0 to 2.5 feet) between November and May in normal years. Saturated hydraulic conductivity is moderately high (1.40 to 4.00 micrometers per second).Permeability is moderately slow. Low areas of these soils are subject to occasional or rare flooding.

USE AND VEGETATION: Corn, soybeans, and wheat are the principal row crops. Some areas are used for hay and pasture or remain wooded. Native vegetation is hardwood forests.

DISTRIBUTION AND EXTENT: MLRAs 107, 115, and 116B in central and southern Missouri. The type location is in MLRA 115. The series is of moderate extent.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Indianapolis, Indiana

SERIES ESTABLISHED: Lawrence County, Illinois, 1952.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: from the surface to a depth of 30 centimeters (12 inches) (Ap and E horizons).
Argillic horizon: from a depth of 30 to 76 centimeters (12 to 30 inches) (Bt1 and Bt2 horizons).
Aquic conditions: redox features in all horizons below a depth of 30 centimeters (12 inches).

National Cooperative Soil Survey
U.S.A.