IDENTIFIERS

  • Current Taxon Name (Soil Name): Hobson
  • OSD
  • Series Extent
  • User Site ID: S1959MO065003
  • User Pedon ID: S1959MO065003
  • Vegetation Plot ID: S1959MO065003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2717
  • Print Date: 11/24/2024

    • LOCATION

  • Location In Web Soil Survey
  • AOI is roughly a square mile and pedon is marked in the center.
  • Location in SoilWeb
  • Location in Google Maps
  • Std. Latitude: 37.7736702
  • Std. Longitude: -91.7006989
  • Datum: WGS84
  • Township: T35N
  • Range: R7W
  • Section: 9
  • PLSS Details: Middle of northwest quarter of northeast quarter
  • Location Description: on the Jack Sturgeon farm
  • State: Missouri
  • County: MO065—Dent
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO065—Dent County, Missouri
  • 7.5 Minute USGS Quad: 37091-G6—Lecoma, Missouri

    • PEDON

  • Describers Name: J. S. Allen, R. L. Juve, John Van Dine, and F. J. Carlisle.
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 3
  • Sampled As Information:
  • Soil Name - Hobson
  • Classificaton Date - 10/7/1959
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from sandstone and/or limestone
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/7/1959 (actual site observation date)
  • Air Photo ID: BLG-5p125
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    LESPE

    Lespedeza

    lespedeza

    —

    —

    —
    Setting and Climate
    Slope Slope Length USLE Upslope Length Elev. Corr. Elev Aspect MAP REAP FFD MAAT MSAT MWAT MAST MSST MWST MFFP PE Index Climate Station ID Climate Station Name Climate Station Type
    % m degrees mm mm C mm

    7

    —

    —

    —

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; loam; massive; friable; 0.5 medium and 3.0 fine tubular pores; fragments; very strongly acid, pH 5.0, hellige-truog; abrupt boundary. Lab sample # 40A21287
    B1—15 to 23 centimeters (5.9 to 9.1 inches); brown (7.5YR 4/4), light yellowish brown (10YR 6/4), dry; silty clay loam; weak fine angular blocky structure; friable; 0.5 medium and 21.0 fine tubular pores; faint gray (10YR 5/1) on faces of peds; fragments. Lab sample # 40A21288. indistinct lower boundary.; patchy - phpvsfiid 192278; patchy - phpvsfiid 192278
    B21—23 to 30 centimeters (9.1 to 11.8 inches); brown (7.5YR 4/4) silty clay loam; weak medium angular blocky structure; firm; 3.0 fine tubular pores; fragments; very strongly acid, pH 5.0, bromcresol green; gradual boundary. Lab sample # 40A21289. appears to be a few thin discontinuous clay films when material is moist but these are not evident when the soil is dry; dry material has grainy surfaces with thin faint patches of grayish silty material.
    B22—30 to 41 centimeters (11.8 to 16.1 inches); brown (7.5YR 4/4) clay loam; moderate fine and medium angular blocky structure; firm; 0.5 medium tubular and 3.0 fine pores; 10 percent clay films and 75 percent faint gray (10YR 5/1) on faces of peds; fragments; clear boundary. Lab sample # 40A21290. patchy - phpvsfiid 192279; patchy - phpvsfiid 192282; patchy - phpvsfiid 192279; patchy - phpvsfiid 192282
    B23—41 to 53 centimeters (16.1 to 20.9 inches); dark yellowish brown (10YR 3/4) clay loam; strong medium angular blocky structure; firm; 0.5 medium tubular and 3.0 fine pores; brown (10YR 5/3) clay films and gray (10YR 5/1) on faces of peds; fragments; very strongly acid, pH 4.8, bromcresol green; clear boundary. Lab sample # 40A21291. the grayish silt patches are not evident when the soil is fully moist.; patchy - phpvsfiid 176744; patchy - phpvsfiid 176744
    IIA'X1—53 to 69 centimeters (20.9 to 27.2 inches); grayish brown (10YR 5/2) clay loam; yellowish brown (10YR 5/8) and 3 percent yellowish brown (10YR 5/6) fine distinct mottles; weak thick platy structure; very firm; 1.0 medium tubular and 3.0 fine pores; fragments; clear boundary. Lab sample # 40A21292. mottles parallel the platy cleavage
    IIA'X2—69 to 104 centimeters (27.2 to 40.9 inches); brown (10YR 5/3) sandy loam; massive; very firm; 0.5 medium tubular and 3.0 fine pores; brown (7.5YR 4/4) clay films; fragments; very strongly acid, pH 5.0, bromcresol green; clear boundary. Lab sample # 40A21293. occasional horizontal cleavage; pores are lined with distinct reddish brown to brown clay films; occasional soft dark spherical oxide concretions.; discontinuous - phpvsfiid 176746; discontinuous - phpvsfiid 176746
    IIB'X1—104 to 119 centimeters (40.9 to 46.9 inches); massive; extremely firm*; fine and medium tubular and 3.0 vesicular pores; 10 percent faint brown (10YR 5/3) clay films; fragments; clear boundary. Lab sample # 40A21294. closely packed sandstone fragments with pale brown loam in interstices; in the lower part of this horizon is a discontinuous pale brown (10YR 6/3) loam layer about 2 inches thick that is extremely firm in place, brittle when removed, most pore spaces being lined with grayish silty material.
    IIB'X2—119 to 130 centimeters (46.9 to 51.2 inches); yellowish brown (10YR 5/4) clay loam; 1 percent dark red (10R 3/6) fine prominent mottles; moderate thick platy structure; very firm; 21.0 fine and medium tubular pores; distinct dark yellowish brown (10YR 4/4) clay films on horizontal faces of peds; fragments; strongly acid, pH 5.4, chlorophenol red; clear boundary. Lab sample # 40A21295. continuous - phpvsfiid 192313; continuous - phpvsfiid 192313
    IIB21bt—130 to 152 centimeters (51.2 to 59.8 inches); clay loam; yellowish brown (10YR 5/6) medium and coarse prominent and dark red (10R 3/6) mottles; weak thick platy structure; very firm; 1.0 fine and medium tubular pores; dark yellowish brown (10YR 4/4) clay films on horizontal faces of peds and dark reddish brown (5YR 3/2); fragments; gradual boundary. Lab sample # 40A21296
    IIB3b—152 to 183 centimeters (59.8 to 72.0 inches); dark red (10R 3/6); grayish brown (2.5Y 5/2) medium and coarse prominent mottles; massive; very firm; dark yellowish brown (10YR 4/4) clay films on faces of peds; fragments; strongly acid, pH 5.4, chlorophenol red. Lab sample # 40A21297. the dark red material has about sandy clay loam texture and appears to be weathered sandstone; the grayish brown material has a gritty clay texture and occurs as seams or planes; 40A33731.