LOCATION HUSKA OK

Established Series
JEH Rev. CRC:JLD
03/2016

HUSKA SERIES

The Huska series consists of deep, moderately well drained soils that formed in residuum from interbedded shale and sandstone of Permian age. These soils are on crests and upper side slopes of low hills in the Central Rolling Red Prairies (MLRA80A). Slope ranges from 1 to 5 percent. Mean annual air temperature is 15 degrees C (59 degrees F), and mean annual precipitation is 840 mm (33 in).

TAXONOMIC CLASS: Fine, mixed, superactive, thermic Mollic Natrustalfs

TYPICAL PEDON: Huska silt loam--on a 1 percent slope in rangeland, at an elevation of 293 m (962 ft). (Colors are for dry soil unless otherwise stated.)

A--0 to 23 cm (0 to 9 in); brown (7.5YR 5/4) silt loam, dark brown (7.5YR 3/3) moist; weak very coarse subangular blocky structure; hard, friable; slightly acid; abrupt smooth boundary. (Thickness of the A horizon is 10 to 25 cm [4 to 10 in])

Btn--23 to 46 cm (9 to 18 in); reddish brown (5YR 4/4) silty clay, dark reddish brown (5YR 3/4) moist; moderate coarse columnar structure; extremely hard, very firm; many prominent clay films on faces of peds; ped faces are dark reddish brown (5YR 3/2) organoargillins; few fine black iron-manganese concretions; exchangeable sodium percentage is 22; neutral; clear smooth boundary. (Thickness of the Btn horizon is 18 to 28 cm [7 to 11 in])

Btknz--46 to 64 cm (18 to 25 in); reddish brown (5YR 5/4) silty clay loam, reddish brown (5YR 4/4) moist; moderate medium subangular blocky structure; extremely hard, very firm; common faint clay films on faces of peds; few fine faint strong brown (7.5YR 4/6) redoximorphic concentrations with clear boundaries; few fine calcium carbonate concretions; common fine visible threads of salts; exchangeable sodium is 39 percent; slightly effervescent; moderately alkaline; clear smooth boundary. (Thickness of the Btknz horizon is 18 to 46 cm [7 to 18 in])

Btnyz--64 to 86 cm (25 to 34 in); yellowish red (5YR 5/6) clay, yellowish red (5YR 4/6) moist; weak medium blocky structure; extremely hard, very firm; common distinct clay films on faces of peds; many fine irregular threads of salts; few medium crystals of gypsum; exchangeable sodium is 53 percent; slightly effervescent; moderately alkaline; clear smooth boundary. (Thickness of the Btnyz horizon is 23 to 58 cm [9 to 23 in])

B`tn--86 to 127 cm (34 to 50 in); red (2.5YR 5/6) clay, red (2.5YR 4/6) moist; weak fine subangular blocky structure; extremely hard, firm; few faint clay films on faces of peds; exchangeable sodium is 52 percent; slightly effervescent; moderately alkaline; abrupt smooth boundary. (Thickness of the B'tn horizon is 0 to 84 cm [0 to 33 in])

2Cr--127 to 140 cm (50 to 55 in); light gray (5YR 7/1) sandstone; rippable; very slightly effervescent; moderately alkaline.

TYPE LOCATION: Payne County, Oklahoma; City of Stillwater; 2,200 feet west and 500 feet south of the northeast corner of sec 10, T. 19 N., R. 2 E.

USGS topographic quadrangle: Stillwater North, OK
Latitude: 36 degrees, 8 minutes, 37 seconds N
Longitude: 97 degrees, 4 minutes, 37 seconds W
Datum: NAD 83

RANGE IN CHARACTERISTICS:
Depth to bedrock: 102 to 152 cm (40 to 60 in)
Exchangeable sodium percentage: 15 to 55 percent in the Btn horizons

A horizon:
Hue: 5YR or 7.5YR
Value: 4 or 5 dry, 2 or 3 moist
Chroma: 2 to 4 dry or moist
Texture: fine sandy loam, very fine sandy loam, loam, or silt loam
Electrical conductivity (mmhos/cm): 0 to 8
Effervescence: none
Reaction: moderately acid or slightly alkaline

Btn horizon:
Hue: 5YR or 7.5YR
Value: 4 or 5 dry, 3 or 4 moist
Chroma: 2 to 6 dry or moist
Texture: silty clay loam, clay loam, silty clay, or clay
Clay content: 35 to 45 percent
Redoximorphic concentrations: amount-0 to 10 percent; size-1 to 15 mm; color-shades of red; boundaries-clear; location-in the matrix
Electrical conductivity (mmhos/cm): 2 to 16
Effervescence: none
Reaction: neutral to moderately alkaline

Btnkz and Btnyz horizons:
Hue: 2.5YR to 7.5YR
Value: 5 to 6 dry, 4 or 5 moist
Chroma: 3 to 8 dry or moist
Redoximorphic concentration: amount-0 to 10 percent; size-1 to 15 mm; color-shades of red and brown; boundaries-clear; location-in the matrix
Texture: silty clay loam, clay loam, silty clay, or clay
Secondary carbonates: calcium carbonate concretions in Btnkz horizon
Salts: visible threads of salts are present in most pedons
Gypsum: visible crystals in nests in some pedons
Effervescence: none to slight
Reaction: slightly alkaline or moderately alkaline

B'tn horizon:
Hue: 2.5YR or 5YR
Value: 5 to 6 dry, 4 or 5 moist
Chroma: 4 to 8 dry or moist
Texture: silty clay loam, clay loam, silty clay, or clay
Secondary carbonates: some pedons have calcium carbonate concretions
Salts: some pedons contain threads and soft masses of salts
Effervescence: none to slight
Reaction: slightly alkaline or moderately alkaline

2Cr horizon:
Bedrock: consists of interbedded reddish or grayish sandstone, and sandy shale, and red shale. It is dense enough to be root restrictive, and fractures are greater than 10 cm (4 in) apart.
Cementation: most of this material slakes in water within 15 hours

COMPETING SERIES: These are Drummond (OK) and Pawhuska (OK) series in the same family.
Drummond and Pawhuska soils: are more than 152 cm (60 in) deep

GEOGRAPHIC SETTING:
Parent material: formed in residuum from interbedded sandstone and shale of Permian age
Landscape: low hills
Landform: crests and upper side slopes
Mean annual precipitation: 660 to 1020 mm (26 to 40 in)
Mean annual air temperature: 14 to 16 degrees C (57 to 61 degrees F)
Frost-free period: 200 to 230 days
Elevation: 274 to 396 m (900 to 1,300 ft)
Thornthwaite Annual P-E indices: 44 to 64

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Chickasha (OK), Grainola (OK), Lucien (OK), Renfrow (OK), and Zaneis (OK) series.
Chickasha, Grainola, Lucien, Renfrow, and Zaneis soils: occur on similar positions and do not have a natric horizon

DRAINAGE AND PERMEABILITY:
Drainage: moderately well
Permeability: slow
Saturated hydraulic conductivity: low
Runoff: very high

USE AND VEGETATION: Many areas have been cultivated in the past, but are now in low condition grasses such as threeawn. Some areas are cultivated to small grains or improved pastures and some areas are rangeland. Native vegetation is mainly a mixture of mid and short grasses.

DISTRIBUTION AND EXTENT: Central Oklahoma; LRR H, Central Rolling Red Prairies (MLRA 80A); moderately extensive

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas

SERIES ESTABLISHED: Payne County, Oklahoma in 1983,

REMARKS:
These soils were formerly included in the Pawhuska series and miscellaneous land areas of slickspots.
Revisions to Ksat and formatting done by JLD, 05/2007. Updated competing series, added Ecological Site, and Lat Long JBB, 06/2008
Extensive revisions made as a result of the SDJR Initiative (JLD -3/2016).

Diagnostic horizons and features that are recognized in this pedon are:
Mollic epipedon: 0 to 23 cm (0 to 9 in) (A horizon)
Natric horizon: 23 to 127 cm (9 to 50 in) (Btn horizons)
Paralithic contact: sandstone bedrock encountered at 127 cm (50 in)

ADDITIONAL DATA: Lab sample no. 79-OK-60-6 by Oklahoma State University, Stillwater, OK. Kellogg Soil Survey Lab No. 93P0396, Lincoln, NE.

Taxonomic Version: Keys to Soil Taxonomy, Twelfth Edition, 2014

National Cooperative Soil Survey
U.S.A.