LOCATION SWEDEGROVE MN
Established Series
Rev. RAL-TCJ-TWN
03/2014
SWEDEGROVE SERIES
The Swedegrove series consists of very deep, poorly drained soils that formed in till. They are on nearly level to slightly convex slopes on moraines. Slope ranges from 0 to 2 percent. Mean annual air temperature is about 8 degrees C. Mean annual precipitation is about 735 millimeters.
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, calcareous, mesic Typic Endoaquolls
TYPICAL PEDON: Swedegrove loam, on a slightly convex slope of 1 percent, on a moraine, in a cultivated field. (Colors are for moist soil unless otherwise noted)
Ap--0 to 23 centimeters; black (N 2/0) loam, very dark gray (N 3/0) dry; weak fine subangular blocky structure; very friable; about 2 percent gravel; about 1 percent cobbles; strongly effervescent; slightly alkaline; abrupt smooth boundary.
Ak--23 to 36 centimeters; very dark gray (10YR 3/1) loam, dark gray (10YR 4/1) dry; weak fine subangular blocky structure parting to weak very fine subangular blocky; very friable; few fine irregular soft light brownish gray (2.5Y 6/2) calcium carbonate concentrations distributed uniformly throughout the horizon; about 2 percent gravel; about 1 percent cobbles; violently effervescent; slightly alkaline; clear smooth boundary.
Bkg1--36 to 51 centimeters; olive gray (5Y 5/2) fine sandy loam; weak fine subangular blocky structure parting to weak very fine subangular blocky; very friable; common fine irregular soft very pale brown (10YR 8/2) calcium carbonate concentrations distributed uniformly throughout the horizon; few fine prominent light olive brown (2.5Y 5/4) iron concentrations; about 2 percent gravel; about 2 percent cobbles; violent effervescent; slightly alkaline; clear smooth boundary.
Bkg2--51 to 152 centimeters; light yellowish brown (2.5Y 6/4) fine sandy loam; weak coarse subangular blocky structure; very friable; common fine irregular soft very pale brown (10YR 8/2) calcium carbonate concentrations distributed uniformly throughout the horizon; many medium prominent light olive gray (5Y 6/2) iron depletions; about 6 percent gravel; about 6 percent cobbles; strongly effervescent; slightly alkaline; clear smooth boundary.
BCkg--152 to 203 centimeters; light brownish gray (2.5Y 6/2) fine sandy loam; massive; very friable; few, fine irregular soft very pale brown (10YR 8/2) calcium carbonate concentrations distributed uniformly throughout the horizon; common fine prominent dark yellowish brown (10YR 4/4) iron concentrations; about 6 percent gravel; about 6 percent cobbles; strongly effervescent; slightly alkaline; clear smooth boundary.
TYPE LOCATION: Major Land Resource Area (MLRA) 103-Central Iowa and Minnesota Till Prairies, Meeker County, Minnesota subset; about 3 miles north and 3 miles west of Grove City; located about 1,200 feet east and 500 feet south of the northwest corner of section 17, T. 120 N., R. 32 W.; USGS Grove City topographic quadrangle; lat. 45 degrees 12 minutes 34.7 seconds N. and long. 94 degrees 43 minutes 58.6 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Mollic epipedon thickness--30 to 50 centimeters
Depth to carbonates--carbonates are present throughout the profile
Clay content of particle-size control section (weighted average)--14 to 18 percent
Sand content of particle-size control section (weighted average)--35 to 55 percent
Ap or Ak horizon:
Hue--10YR or is neutral
Value--2 or 3
Chroma--0 or 1
Texture--fine sandy loam, sandy loam, loam, or sandy clay loam
Clay content--14 to 24 percent
Sand content--35 to 65 percent
Rock fragment content--2 to 6 percent
Calcium carbonate equivalent--5 to 20 percent (centers about 12 percent)
Reaction--pH 7.4 to 8.4
Thickness--30 to 50 centimeters
AB horizon (when present):
Hue--10YR, 5Y, or is neutral
Value--3 or 4
Chroma--0 or 1
Texture--fine sandy loam, sandy loam, loam, or sandy clay loam
Clay content--14 to 24 percent
Sand content--35 to 65 percent
Rock fragment content--2 to 6 percent
Calcium carbonate equivalent--5 to 20 percent
Reaction--pH 7.4 to 8.4
Thickness--0 to 25 centimeters
Bkg horizon:
Hue--10YR, 2.5Y, 5Y, or is neutral
Value--4 to 6
Chroma--0 to 2
Texture--fine sandy loam, sandy loam, loam, or sandy clay loam
Clay content--12 to 22 percent
Sand content--35 to 65 percent
Rock fragment content--2 to 6 percent gravel; 3 to 8 percent cobbles and stones
Calcium carbonate equivalent--10 to 25 percent
Reaction--pH 7.4 to 8.4
Thickness--0 to 120 centimeters
BCkg or Cg horizon:
Hue--2.5Y or 5Y
Value--4 to 6
Chroma--2 to 4
Texture--fine sandy loam, sandy loam, or loam
Clay content--10 to 18 percent
Sand content--40 to 65 percent
Rock fragment content--3 to 6 percent gravel; 3 to 8 percent cobbles and stones
Calcium carbonate equivalent--10 to 20 percent
Reaction--pH 7.4 to 7.8
COMPETING SERIES: These are the
Coriff,
Fieldon,
Lemond, and
Rocksan series. Coriff--have clay content of 18 to 35 percent in the lower third of the series control section
Fieldon--have a sand content of more than 65 percent in the lower third of the series control section
Lemond--have a sand content more than 70 percent in the lower third of the series control section
Rocksan--have a clay content of more than 40 percent in the lower third of the series control section
GEOGRAPHIC SETTING:
Parent material--till of the Wadena Lobe of Wisconsin age
Landform--nearly level to slightly convex slopes on moraines
Slope--0 to 2 percent
Elevation--300 to 400 meters above sea level
Mean annual air temperature--6 to 10 degrees C
Mean annual precipitation--585 to 890 millimeters
Frost free period--155 to 200 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Crowriver,
Grovecity,
Lundlake, and
Uniongrove soils.
Crowriver--are on landscape positions similar to those of the Swedegrove soils and have a calcium carbonate equivalent content of more than 20 percent in the upper third of the series control section
Grovecity--are on higher landscape positions and have a frequently saturated zone between depths 0.75 and 1.2 meters during the wettest periods of years when precipitation is within one standard deviation of 30 year mean of annual precipitation
Lundlake--are on lower landscape positions in depressions and have a mollic epipedon greater than 60 centimeters thick
Uniongrove--are on flat and swale positions and do not have carbonates within a depth of 40 centimeters
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--poorly drained--in an undrained condition, these soils are frequently saturated at the surface of the soil to a depth of 0.3 meters during the wettest periods of years when precipitation is within one standard deviation of the 30 year mean of annual precipitation
Saturated hydraulic conductivity--10.00 to 100.00 micrometers per second
USE AND VEGETATION:
Most areas are artificially drained and cultivated. The principal crops are corn, soybeans, small grains, and legume hay. The native vegetation is is predominantly wet-site tall prairie species such as prairie cordgrass, switchgrass, big bluestem, wooly sedge, giant goldenrod and Canada goldenrod.
DISTRIBUTION AND EXTENT:
Physiographic Division--Interior Plains
Physiographic Province--Central Lowland
Physiographic section--Western lake section
MLRA--Central Iowa and Minnesota Till Prairies (103)
LRR M; west-central and central Minnesota
Extent--moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota.
SERIES ESTABLISHED: Meeker County, Minnesota, 1995
REMARKS:
Particle-size control section--the zone from a depth of 25 to 100 centimeters;
series control section--the zone from the surface of the soil to a depth of 150 centimeters.
Diagnostic horizons and features recognized in this pedon are:
mollic epipedon--the zone from the surface of the soil to a depth of 36 centimeters; Ap and Ak horizons);
calcic horizon--the zone from 36 to 152 centimeters (Bkg1 and Bkg2 horizons);
aquic moisture regime.
Cation-exchange class is inferred from lab data for similar soils in the surrounding area.
Taxonomy version--Keys to Soil Taxonomy, tenth edition, 2006.
ADDITIONAL DATA:
Laboratory data--refer to Minnesota Agricultural Experiment Station Central File Code numbers 2915, 4052, 4053, 4047 4048, and 4415 for results of laboratory analyses of some pedons of this series.
National Cooperative Soil Survey
U.S.A.