LOCATION ROSSVILLE KSEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, superactive, mesic Cumulic Hapludolls
TYPICAL PEDON: Rossville silt loam in a cultivated field. (Colors are dry soil unless otherwise stated)
Ap--0 to 18 centimeters (0 to 7 inches); very dark brown (10YR 2/2) silt loam, dark grayish brown (10YR 4/2) dry; weak medium platy structure parting to weak fine granular; soft, very friable, slightly sticky and slightly plastic; moderately acid; abrupt smooth boundary.
A1--18 to 36 centimeters (7 to 14 inches); very dark brown (10YR 2/2) silt loam, dark grayish brown (10YR 4/2) dry; weak fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; moderately acid; clear smooth boundary.
A2--36 to 53 centimeters (14 to 21 inches); very dark grayish brown (10YR 3/2) silt loam, grayish brown (10YR 5/2) dry; weak medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; moderately acid; clear smooth boundary.
Bw1--53 to 99 centimeters (21 to 39 inches); very dark grayish brown (10YR 3/2) silt loam, grayish brown (10YR 5/2) dry; weak medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; slightly acid; clear smooth boundary
Bw2--99 to 145 centimeters (39 to 57 inches); brown (10YR 5/3) silt loam, pale brown (10YR 6/3) dry; weak fine subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; slightly acid; clear smooth boundary. (Combined thickness of the Bw horizons is 46 to 91 centimeters (18 to 36 inches) thick)
BC--145 to 203 centimeters (57 to 80 inches); pale brown (10YR 6/3) silt loam, very pale brown (10YR 7/3) dry; weak coarse subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; slightly acid.
TYPE LOCATION: Shawnee County, Kansas; 0.8 kilometers (0.5 miles) south of Kiro, 15 meters (50 feet) north and 122 meters (400 feet) west of the southeast corner of section 13, T. 11 S., R. 14 E., USGS Rossville topographic quadrangle lat. 39 degrees 5 minutes 16 seconds N. and long. 95 degrees 48 minutes 23 seconds W.
RANGE IN CHARACTERISTICS:
Depth to calcium carbonate: 152 to 203 centimeters (60 to 80 inches)
Thickness of the mollic epipedon: 61 to 102 centimeters (24 to 40 inches)
Particle-size control section (weighted average): 25 to 102 centimeters (10 to 40 inches)
Clay content: 18 to 35 percent
Sand content: 0 to 20 percent
A horizon:
Hue: 10YR
Value: 2 to 3, 4 to 5 dry
Chroma: 1 to 3
Texture: silt loam or silty clay loam
Clay content: 18 to 30 percent
Reaction: 5.6 to 6.5
Bw horizon:
Hue: 10YR
Value: 3 to 5, 4 to 6 dry
Chroma: 2 to 4
Texture: silt loam or silty clay loam
Clay content: 18 to 35 percent
Reaction: 6.1 to 7.3
BC horizon:
Hue: 10YR
Value: 4 to 6, 5 to 7 dry
Chroma: 2 to 4
Texture: silt loam or silty clay loam
Clay content: 12 to 30 percent
Calcium carbonate equivalent: 0 to 5 percent
Reaction: 6.1 to 7.8
C horizon:
Hue: 10YR
Value: 4 to 6, 5 to 7 dry
Chroma: 2 to 4
Texture: silt loam
Clay content: 12 to 26 percent
Silt content: 60 to 85 percent
Calcium carbonate equivalent: 0 to 5 percent
Reaction: 6.1 to 8.4
COMPETING SERIES: These are the
Allison,
Anthon,
Huntsville,
Ivan,
Judson,
Kahola,
Kennebec,
Kenridge,
Lindstrom,
Napier,
Sturkie, and
Worthen series.
Anthon soils formed in loess or silty alluvium over sand and gravel.
The Allison, Anthon, Huntsville, Judson, Lindstrom, and Napier soils are less than 12 degrees C. (54 degrees F.) in the soil temperature control section.
Ivan soils are calcareous throughout.
Kahola soils are calcareous between depths of 38 to 102 centimeters (15 to 40 inches).
Kennebec soils do not have a Bw horizon.
Kenridge soils are moderately well drained.
Sturkie soils have have redoximorphic features, and have 0 to 10 percent rock fragments in the lower third of the series control section
Worthen soils are drier in the series control section
GEOGRAPHIC SETTING:
Parent material: derived from silty alluvium
Landform: floodplain steps
Flooding: very rare
Duration: brief
Months: March to July
Slopes: 0 to 2 percent
Range of annual temperature: 11 to 13 degrees C. (52 to 55 degrees F.)
Range of annual precipitation: 86 to 102 centimeters (34 to 40 inches)
Frost-free period: 170 to 190 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Chase,
Kimo,
Muscotah,
Reading, and
Wabash soils.
The Chase soils are somewhat poorly drained and somewhat lower on the floodplain.
The Kimo soils are somewhat poorly drained and lower on the floodplain.
The Muscotah soils are somewhat poorly drained and are slightly lower on the floodplain.
The Reading soils have an argillic horizon and are moderately well drained.
The Wabash soils are poorly drained and lower on the floodplain.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage: well
Runoff: negligible to low
Saturated Hydraulic Conductivity: moderately high
USE AND VEGETATION: This soil is cultivated. Corn, sorghum, and soybeans are common crops. Native vegetation is tall prairie grasses.
DISTRIBUTION AND EXTENT: Southern part of Northeast Kansas along the Kansas River in LRR M; MLRA 106. It is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES ESTABLISHED: Shawnee County, Kansas, 1999. This series is named for a town in Shawnee County in the Kansas River Valley.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: 25 to 102 centimeters (10 to 40 inches) (A1, A2, Bw1, Bw2 horizons)
Mollic epipedon: 0 to 53 centimeters (0 to 21 inches) (Ap, A1, A2 horizons)
Cambic horizon: 53 to 145 centimeters (21 to 57 inches) (Bw1, Bw2 horizons)
These soils were formerly included with the Judson and Muir series. Pedon used for series is 94KS177011 (SS880-886).
Occasionally, there are buried soils deeper than 178 centimeters (70 inches) that contain higher clay content than the series allows.
ADDITIONAL DATA: Laboratory data is available from the Lincoln, Nebraska, National Soil Survey Laboratory on Pedons S53KS177891, (SS2001-2007) and S53KS177892, (SS2008-2015). Kansas State University Pedology Laboratory 95KS087002 (SS892-SS897), 95KS087002 (SS892-897) and 96KS149013 (SS1157-1162).
Modified format by LRM in 3/2006 to include metric conversion and change permeability to saturated hydraulic conductivity.