IDENTIFIERS

  • Current Taxon Name (Soil Name): Robco
  • OSD
  • Series Extent
  • User Site ID: S1982TX289026
  • User Pedon ID: 82TX289026
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 82P0613
  • NCSS Pedon Lab Data NASIS Record ID - 51400
  • Print Date: 4/14/2025

    • 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: 31.3875008
  • Std. Longitude: -96.1208344
  • Datum: WGS84
  • Location Description: From intersection of Farm road 39 and US Highway 79 in Jewett, 3 mi NE on US Hwy 79, 900 feet SE in field.
  • State: Texas
  • County: TX289—Leon

    • PEDON

  • Describers Name: C. Neitsch and J. Castille
  • Current Taxonomic Class: Fine-loamy, siliceous, semiactive, thermic Aquultic Haplustalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 26
  • Correlated Information:
  • Soil Name - Robco
  • Classificaton Date - 7/11/2007
  • Moisture Class - ustic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Robco
  • Taxonomic Class - Clayey, mixed, thermic Aquic Arenic Paleustalf
  • Taxon Kind - series
  • Classificaton Date - 4/1/1982
  • Moisture Class - ustic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: upland slope
  • Slope Shape Down: concave
  • Runoff: very low
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/1/1982 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • 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

    1

    —

    —

    143

    —

    180

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    1Ap—0 to 10 centimeters (0.0 to 3.9 inches); brown (10YR 5/3) interior, brown (10YR 4/3) interior, moist; loamy fine sand; weak fine granular structure; slightly hard, very friable; 5.5 fine roots; 2.5 very fine tubular pores; fragments; moderately acid, pH 5.8, hellige-truog; abrupt smooth boundary. Lab sample # 82P03199. many fine roots
    1A—10 to 25 centimeters (3.9 to 9.8 inches); pale brown (10YR 6/3) interior, brown (10YR 5/3) interior, moist; loamy fine sand; weak fine granular structure; slightly hard, very friable; 2.5 fine roots; 2.5 very fine tubular pores; fragments; moderately acid, pH 5.8, hellige-truog; gradual smooth boundary. Lab sample # 82P03200. common fine roots
    1E1—25 to 46 centimeters (9.8 to 18.1 inches); very pale brown (10YR 7/4) interior, light yellowish brown (10YR 6/4) interior, moist; loamy fine sand; single grain; slightly hard, loose; 2.5 fine roots; 2.5 very fine tubular pores; 11 percent dark concretions; fragments; slightly acid, pH 6.3, hellige-truog; gradual smooth boundary. Lab sample # 82P03201. common dark concretions concentrations; common fine roots
    1E2—46 to 64 centimeters (18.1 to 25.2 inches); very pale brown (10YR 7/4) interior, very pale brown (10YR 7/3) interior, moist; loamy fine sand; 11 percent brownish yellow (10YR 6/6) fine distinct mottles; single grain; slightly hard, loose; 2.5 fine roots; 2.5 very fine tubular pores; 1 percent dark concretions; fragments; strongly acid, pH 5.3, hellige-truog; abrupt smooth boundary. Lab sample # 82P03202. few dark concretions concentrations; common fine roots; common fine distinct 10YR66 mottles
    1B/E—64 to 71 centimeters (25.2 to 28.0 inches);, brownish yellow (10YR 6/6) interior, moist; fine sandy loam; weak medium subangular blocky structure; slightly hard, friable; 2.5 fine roots; 0.5 fine tubular pores; 15 percent , moist, clay films; fragments; strongly acid, pH 5.3, hellige-truog; abrupt smooth boundary. Lab sample # 82P03203. 40 percent of horizon is tongues and interfingers of light gray (10YR 7/2) (E part); few brittle masses.; few clay films surface features; common fine roots; patchy - phpvsfiid 215522; patchy - phpvsfiid 215522
    1Bt1—71 to 99 centimeters (28.0 to 39.0 inches);, grayish brown (10YR 5/2) interior, moist; clay; 1 percent gray (10YR 5/1) fine faint and 1 percent strong brown (7.5YR 5/6) fine faint and 11 percent red (2.5YR 4/6) medium prominent mottles; moderate medium prismatic, and moderate medium angular blocky, and moderate medium subangular blocky structure; very hard, very firm; 0.5 fine roots; 0.5 fine tubular pores; 15 percent , moist, clay films on faces of peds; fragments; strongly acid, pH 5.3, hellige-truog; gradual wavy boundary. Lab sample # 82P03204. Mottles oriented as vertical streaks inside peds.; few clay films surface features on faces of peds; few fine roots; common medium prominent 2.5YR46 mottles; few fine faint 10YR51 mottles; few fine faint 7.5YR56 mottles
    1Bt2—99 to 137 centimeters (39.0 to 53.9 inches);, pale brown (10YR 6/3) interior, moist; clay; 1 percent strong brown (7.5YR 5/6) fine distinct and 11 percent brownish yellow (10YR 6/6) medium distinct mottles; moderate medium prismatic, and moderate medium subangular blocky structure; very hard, very firm; 0.5 fine roots; 0.5 fine tubular pores; , moist, clay films on faces of peds; 1 percent salt masses; fragments; strongly acid, pH 5.3, hellige-truog; gradual wavy boundary. Lab sample # 82P03205. few salt masses concentrations; few fine roots; common medium distinct 10YR66 mottles; few fine distinct 7.5YR56 mottles
    1B/E—137 to 157 centimeters (53.9 to 61.8 inches);, light gray (10YR 7/2) interior, moist; sandy clay loam; moderate coarse prismatic structure; very hard, very firm; fragments; neutral, pH 7.0, hellige-truog; gradual smooth boundary. Lab sample # 82P03206. 15% tongues of very pale brown (10YR 7/2) fine sandy loam (E part); 50% by volume of horizon in slightly brittle.
    1BC—157 to 203 centimeters (61.8 to 79.9 inches);, light gray (10YR 7/2) interior, moist; sandy clay loam; 11 percent brownish yellow (10YR 6/6) coarse distinct mottles; moderate coarse prismatic structure; hard, very firm; fragments; neutral, pH 7.0, hellige-truog. Lab sample # 82P03207. Few vertical streaks of E materials along faces of peds; 50% by volume of horizon is slightly brittle and 20% is brittle.; common coarse distinct 10YR66 mottles