LOCATION EDALGO KS+NE
Established Series
Rev. SAS, JCR, DJK
07/2020
EDALGO SERIES
The Edalgo series consists of moderately deep, well drained soils that formed in colluvium or loess over residuum weathered from clayey shale. Edalgo soils are on hillslopes on uplands in Central Kansas Sandstone Hills, MLRA 74. Slopes range from 1 to 40 percent. Mean annual precipitation is about 790 millimeters (31 inches) and the mean annual temperature is about 13 degrees C (55 degrees F).
TAXONOMIC CLASS: Fine, mixed, active, mesic Udic Argiustolls
TYPICAL PEDON: Edalgo sandy clay loam, on a northeast-facing, 10 percent slope in native grass. (Colors are for dry soil unless otherwise stated.)
A--0 to 20 centimeters (0 to 8 inches); dark grayish brown (10YR 4/2) sandy clay loam, very dark brown (10YR 2/2) moist; moderate fine granular structure; slightly hard, friable, slight plastic and slightly sticky; common fine and very fine roots; about 3 percent sandstone fragments 1/2 to 2 inches in diameter; moderately acid; clear smooth boundary. (10 to 25 centimeters (4 to 10 inches) thick). Lab sample # 79P01667
BA--20 to 30 centimeters (8 to 12 inches); brown (7.5YR 4/2) sandy clay loam, dark brown (7.5YR 3/2) moist; weak medium subangular blocky structure; hard, firm, slightly sticky and slightly plastic; common fine and very fine roots; about 3 percent sandstone fragments 1/2 to 2 inches in diameter; slightly acid; gradual smooth boundary. (10 to 36 centimeters (4 to 14 inches) thick). Lab sample # 79P01668
2Bt--30 to 53 centimeters (12 to 21 inches); brown (10YR 5/3) and reddish brown (5YR 4/4) clay, brown (10YR 4/3) and reddish brown (5YR 4/4) moist; moderate medium subangular blocky structure; very hard, very firm, very plastic and very sticky; few fine faint clay films on horizontal faces of peds; common very fine roots; neutral; clear wavy boundary. (13 to 41 centimeters (5 to 16 inches) thick). Lab sample # 79P01669
2C1--53 to 81 centimeters (21 to 32 inches); mixed red (2.5YR 4/6) and light gray (10YR 7/1) clay, dark red (2.5YR 3/6) and gray (10YR 5/1) moist; massive; very hard, very firm, very plastic and very sticky; few very fine roots; few fine carbonate concretions, moderately alkaline; clear smooth boundary. Lab sample # 79P01670
2C2--81 to 97 centimeters (32 to 38 inches); mixed brownish yellow (10YR 6/8), light gray (10YR 7/1), and red (2.5YR 4/6) silty clay, yellowish brown (10YR 5/8), gray (10YR 5/1) and red (2.5YR 4/6) moist; massive; hard, firm, very plastic and very sticky; few very fine roots; few fine carbonate concretions; moderately alkaline; clear smooth boundary. (Combined thickness of the 2C horizons is 20 to 46 centimeters (8 to 18 inches)). Lab sample # 79P01671
2Cr--97 to 114 centimeters (38 to 45 inches); light gray (10YR 7/1) and red (2.5YR 4/6) shale; few fine carbonate concretions; slightly alkaline. Lab sample # 79P01672
TYPE LOCATION: Ottawa County, Kansas; about 1.6 kilometers (1 mile) south and 10 kilometers (6 miles) west of Minneapolis; 396 meters (1,300 feet south) and 365 meters (1,200 feet) west of the northeast corner, sec. 13, T. 11 S., R. 5 W. Tescott SE USGS quadrangle; latitude 39 degrees 5 minutes 58.5 seconds N. and longitude 97 degrees 49 minutes 18.8 seconds W., NAD83.
RANGE IN CHARACTERISTICS:
Soil moisture control section: The soil moisture control section is intermittently moist in some part from March through October; driest in November through February; Ustic moisture regime bordering on Udic.
Mean annual soil temperature: 12 to 14 degrees C (53 to 58 degrees F)
Depth to paralithic contact: 50 to 100 centimeters (20 to 40 inches) to shale.
Depth to argillic horizon: 20 to 60 centimeters (8 to 24 inches)
Thickness of the mollic epipedon: 20 to 46 centimeters (8 to 18 inches)
Some pedons lack a lithologic discontinuity.
Particle-size control section (weighted average):
Clay content: 35 to 60 percent
Sand content: 5 to 45 percent
Pararock fragments:
Content: 0 to 10 percent by volume
Size: 2 to 75 millimeters (3 inches)
Kind: Sandstone and ironstone fragments
A horizon:
Hue: 7.5YR or 10YR
Value: 3 to 5 dry, 2 or 3 moist
Chroma: 1 or 2 dry or moist
Texture: sandy clay loam, loam, clay loam, silt loam, or silty clay loam.
Clay content: 15 to 37 percent
Sand content: 10 to 55 percent
Pararock fragments: 0 to 10 percent sandstone gravel
Reaction: moderately acid to neutral
BA horizon:
Hue: 7.5 YR or 10YR
Value: 4 or 5 dry, 3 or 4 moist
Chroma: 2 or 3 dry or moist
Texture: silty clay loam, clay loam, or sandy clay loam
Clay content: 24 to 38 percent
Sand content: 10 to 50 percent
Pararock fragments: 0 to 10 percent sandstone gravel
Reaction: moderately acid to neutral
2Bt horizon:
Hue: 5YR to 2.5Y
Value: 4 to 6 dry, 3 to 5 moist
Chroma: 2 to 4 dry or moist
Texture: silty clay, clay, silty clay loam, or clay loam
Clay content: 35 to 65 percent
Sand content: 5 to 35 percent
Redoximorphic features: Masses of oxidized iron with Hue, 5YR to 10YR; Value, 4 to 6 moist, Chroma, 4 to 8 moist.
Pararock fragments: 0 to 10 percent sandstone gravel
Reaction: moderately acid to neutral
2C horizon:
Hue: 2.5YR to 2.5Y
Value: 4 to 7 dry, 3 to 6 moist
Chroma: 1 to 8 dry or moist
Texture: silty clay, clay, silty clay loam, or clay loam.
Clay content: 27 to 65 percent
Sand content: 5 to 30 percent
Redoximorphic features: Masses of oxidized iron with Hue, 5YR to 10YR; Value, 4 to 6 moist, Chroma, 4 to 8 moist.
Pararock fragments: 0 to 10 percent sandstone gravel
Calcium carbonate equivalent: 0 to 3 percent
Reaction: Neutral to moderately alkaline
Note: Concretions and soft accumulations of lime do not occur in all pedons. Some pedons do not have C horizons.
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING:
Parent material: colluvium or loess over residuum weathered from clayey shale
Landform: hillslopes on uplands
Slopes: 1 to 40 percent
Elevation: 350 to 565 meters (1150 to 1850 feet)
Mean annual air temperature: 11 to 13 degrees C (51 to 56 degrees F)
Mean annual precipitation: 685 to 840 millimeters (27 to 33 inches)
Precipitation pattern: precipitation is usually evenly distributed throughout the year with the exception of November through February being the driest months and May and June being the wettest months. Summer precipitation occurs during intense summer thunderstorms.
Frost-free period: 165 to 190 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Geary,
Hedville,
Lancaster, and
Wells soils.
Geary soils are on higher hillslope positions and are fine-silty.
Hedville soils are on higher hillslope positions and have a lithic contact with sandstone within 50 centimeters.
Lancaster soils are on higher hillslope positions and have a paralithic contact with sandstone or sandy shale between 50 and 100 centimeters.
Wells soils are on lower hillslope positions and are fine-loamy.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage: well
Runoff: high
Saturated hydraulic conductivity: low
USE AND VEGETATION: Most areas are used for rangeland with some of the gentler slopes cultivated to wheat and grain sorghum. Native vegetation is tall grass prairie.
DISTRIBUTION AND EXTENT: North central Kansas and adjacent areas in Nebraska. Land Resource Region H, Central Great Plains Winter Wheat and Range Region; MLRA 74, Central Kansas Sandstone Hills, MLRA 75, Central Loess Plains, and MLRA 106, Nebraska and Kansas Loess-Drift Hills. The Edalgo series is of moderate extent.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Salina, Kansas
SERIES ESTABLISHED: Saline County, Kansas, 1952.
REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 12 to 21 inches. (2Bt horizon)
Mollic epipedon: The zone from 0 to 30 centimeters (0 to 12 inches). (A and BA horizons)
Argillic horizon: The zone from 30 to 53 centimeters (12 to 21 inches). (2Bt horizon)
Paralithic contact: The contact with shale at 97 centimeters (38 inches). (2Cr horizon)
Lithologic discontinuity: At the upper boundary of the 2Bt horizon.
The assignment of the CEC activity class is supported by KSSL sample number 79P0321 (pedon 79KS143002).
The shale bedrock is often a mixture of material that does not slake (paralithic material) and that does slake (densic material). With some of the material not slaking it was determined to leave the horizonation as Cr rather than changing it Cd.
Other features: The mottles with chroma of 2 or less are inherited from the shale, and are not considered an indication of wetness.
LRR=H
Added "sandy and/or clayey" to the second sentence of the first paragraph. Added "They may have colluvium, or loess in the upper profile.
Added wet consistence to all horizons in the typical pedon.
Removed all series that were in a different family.
Included Diagnostic horizons and features in the "Remarks"
05/00 - From Soil Interpretation Record added Clay Content and Sand Content to Range in Characteristics and added Frost-free period to Geographic Setting.
10/2013 DJK - Added in metric units. Changed MAP in intro from 29 to 31 inches. Changed activity class in classification from superactive to active (added statement in remarks stating supported by lab data). Added lab sample numbers. Added quad and lat/long to type location. Added MAST ranges. Added BA ranges in RIC. Added clay loam to A horizon. Added sand contents, pararock fragments, and redox to RIC. Added elevation and precipatiation pattern to geographic setting. Updated parent material, landform, MAP, MAAT, and FFD to geographic setting. Updated competing series and geographically associated soils. Changed Ksat from very slow to low and runoff to only high. Updated Distribution and Extent. Updated Additional Data.
ADDITIONAL DATA: Analysis from this type location was made by the Kellogg Soil Survey Laboratory. Pedon ID 79KS143002, sample numbers 79P01667 to 79P01672.
National Cooperative Soil Survey
U.S.A.