LOCATION HAXTUN CO+KS NEEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Pachic Argiustolls
TYPICAL PEDON: Haxtun loamy sand, cultivated. (Colors are for dry soil unless otherwise noted.)
Ap--0 to 18 centimeters (0 to 7 inches); grayish brown (10YR 5/2) loamy sand, very dark brown (10YR 2/2) moist; weak fine granular structure; soft, very friable; slightly acid; clear smooth boundary. (10 to 23 centimeters (4 to 9 inches) thick)
BA1--18 to 46 centimeters (7 to 18 inches); grayish brown (10YR 5/2) sandy loam, very dark grayish brown (10YR 3/2) moist; weak medium prismatic structure parting to weak medium subangular blocks; slightly hard, very friable; neutral; clear smooth boundary. (20 to 36 centimeters (8 to 14 inches) thick)
BA2--46 to 61 centimeters (18 to 24 inches); grayish brown (10YR 5/2) sandy loam, very dark grayish brown (10YR 3/2) moist; weak medium prismatic structure parting to weak medium subangular blocks; slightly hard, very friable; neutral; clear smooth boundary. (10 to 25 centimeters (4 to 10 inches) thick)
Btb1--61 to 74 centimeters (24 to 29 inches); dark grayish brown (10YR 4/2) sandy clay loam, very dark brown (10YR 2/2) moist; weak and moderate medium prismatic structure parting to weak medium subangular blocks; slightly hard, very friable; slightly sticky; slightly plastic; common distinct clay films on faces of peds; neutral; clear smooth boundary. (10 to 25 centimeters (4 to 10 inches) thick)
Btb2--74 to 99 centimeters (29 to 39 inches); dark grayish brown (10YR 4/2) sandy clay loam, very dark brown (10YR 2/2) moist and black (10YR 2/1) moist and crushed; weak to moderate medium prismatic structure parting to weak medium subangular blocks; slightly hard, very friable; slightly sticky; slightly plastic; common distinct clay films on faces of peds; neutral; clear smooth boundary. (15 to 46 centimeters (6 to 18 inches) thick)
BCb--99 to 119 centimeters (39 to 47 inches); grayish brown (10YR 5/2) loam, very dark grayish brown (10YR 3/2) moist and dark grayish brown (10YR 4/2) moist and crushed; weak medium prismatic structure parting to weak medium subangular blocks; slightly hard; very friable; slightly sticky, slightly plastic; 40 percent of horizon has streaks of brown (10YR 5/3) moist; neutral; clear smooth boundary. (10 to 30 centimeters (4 to 12 inches) thick)
C--119 to 137 centimeters (47 to 54 inches); very pale brown (10YR 7/3) sandy loam, brown 5/3) moist; weak medium prismatic structure parting to weak medium subangular blocks; soft, very friable; neutral; clear wavy boundary. (10 to 20 centimeters (4 to 8 inches) thick)
2Ck--137 to 168 centimeters (54 to 66 inches); pink (7.5YR 7/4) gravelly sandy clay loam; brown (7.5YR 5/4) moist; massive; soft, very friable; visible calcium carbonates as concretions and in finely divided forms; strongly effervescent; moderately alkaline.
TYPE LOCATION: Sedgwick County, Colorado; 131 meters (430 feet) east, 97 meters (319 feet) southwest corner Sec. 35, T. 10 N., R. 47 W.
RANGE IN CHARACTERISTICS:
Mean annual temperature: 8 to 11 degrees C. (47 to 52 degrees F.)
Mollic epipedon: 51 to 127 centimeters (20 to 50 inches) thick
Depth to calcareous material: 51 to 152 centimeters (20 to 60 inches)
Depth of the argillic horizon: 66 to 152 centimeters (26 to 60 inches)
Rock fragments: 0 to 20 percent by volume
Calcium carbonate equivalent: 8 percent, (ranges 0 to 15 percent) in the 2Ck horizon
Exchangeable potassium: increase with depth
Exchangeable sodium: usually less than 1 percent in solum but increases in the 2Ck horizon
A horizon:
Hue: 10YR or 2.5Y
Value: 4 or 5, 2 or 3 moist
Chroma: 2 or 3
Texture: sandy loam or loamy sand.
BA horizons:
Hue: 10YR or 2.5Y
Value: 4 to 6, 2 to 4 moist
Chroma: 2 or 3
Btb horizons:
Hue: 10YR or 2.5Y
Value: 3 to 8, 2 to 4 moist
Chroma: 1 to 4
Texture: loam, clay loam, silt loam, or sandy clay loam
Clay: 18 to 35 percent
Silt: 10 to 60 percent
Sand: 20 to 65 percent
C horizons:
Hue: 2.5Y to 7.5YR
Value: 6 or 7, 4 to 6 moist
Chroma: 2 to 4
Texture: sandy loam, loam, loamy sand, or gravelly sandy clay loam.
COMPETING SERIES: These are the
Albinas,
Bluewater,
Farnum,
Funmar,
Garrett,
Jarita,
Keya,
Ownyate,
Prosper,
Renner,
Sampson,
Tracylee,
Vosburg and
Wetterdon series.
Bluewater soils contain redoximorphic features at 58 to 130 centimeters (23 to 51 inches).
Farnum soils have a higher mean annual temperature.
Funmar soils have a palesol between 76 to 152 centimeters (30 to 60 inches).
Garrett soils have a hue of 5YR or redder.
Jarita soils have fractured limestone at depths of 51 to 100 centimeters (20 to 40 inches).
Ownyate soils have redder hues.
Albinas, Keya, Prosper, Renner, Sampson, Tracylee, Vosburg and Wetterdon soils lack buried horizons within their control sections.
GEOGRAPHIC SETTING:
Parent material: sandy eolian sediment overlying an old buried soils surface
Landform: drainageways and in slightly depressed area on plains or table lands
Slope: 0 to 5 percent.
Mean annual precipitation: 43 centimeters (17 inches), (25 to 28 centimeters (10 or 11 inches) of which falls April to August)
Mean annual temperature: 10 degrees C. (49 degrees F.)
Mean summer temperature: 22 degrees C. (71 degrees F.)
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Julesburg and
Kuma soils. Julesburg soils have a coarse, loamy control section.
Kuma soils have a fine, silty control section.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage: well drained
Runoff: low
Saturated Hydraulic Conductivity: moderately high
Mottling: associated with the uppermost part of the buried soil horizon (not indicative of present drainage)
USE AND VEGETATION: These soils are used for dry and irrigated cropland and native pastureland.
Dryland crops are mainly wheat and sorghum.
Native vegetation is mainly mixed grasses of blue grama, buffalo grass, needleandthread, and western wheatgrass.
DISTRIBUTION AND EXTENT: Eastern Colorado and adjacent parts of Nebraska in MLRA's 67 and 69. The soil is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES ESTABLISHED: Akron Area, Colorado, 1941.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon: 0 to 119 centimeters (0 to 47 inches)
Argillic horizon: 61 to 99 centimeters (24 to 39 inches)
Last updated by the state in 3/94. Laboratory data are available for sample SC63-CO-58-6.
Modified format by LRM in 10/2005 to include metric conversion and change permeability to saturated hydraulic conductivity.