Nebraska Soils Field Trip - Virginia Tech

4th IUSS Soil Classification Conference Field Tour Guidebook
^Au--0 to 6 centimeters; brown (10YR 4/3) silt loam, pale brown (10YR 6/3), dry; strong medium and
coarse granular structure; firm, slightly hard, slightly sticky, slightly plastic; very fine and fine roots
throughout and medium roots throughout; very fine and fine interstitial pores; artifacts: 1% plastic - 2 mm;
abrupt smooth boundary.
^Bw1--6 to 22 centimeters; brown (10YR 4/3) silt loam, pale brown (10YR 6/3), dry; moderate thick platy,
and moderate medium granular structure; firm, slightly hard, slightly sticky, slightly plastic; fine and
medium roots throughout; very fine and fine interstitial pores; clear wavy boundary.
^Bw2--22 to 46 centimeters; brown (10YR 5/3) silt loam, pale brown (10YR 6/3), dry; moderate thick platy,
and moderate very thick platy structure; firm, slightly hard, slightly sticky, slightly plastic; very fine roots
throughout; very fine tubular pores; 1 percent fine and medium faint 10YR 4/4 masses of oxidized iron on
faces of peds; negative reaction to alpha-alpha' dipyridyl; clear wavy boundary.
^Bw3--46 to 52 centimeters; brown (10YR 5/3) silt loam; weak thick platy structure; firm, slightly hard,
slightly sticky, slightly plastic; very fine roots; very fine tubular pores; 2 percent medium distinct 10YR 3/3
manganese masses on faces of peds and 5 percent extremely coarse distinct 5YR 4/4 masses of
oxidized iron on faces of peds; negative reaction to alpha-alpha' dipyridyl; clear irregular boundary.
^Cug--52 to 102 centimeters; gray (10YR 5/1) artifactual silt loam; weak thick platy structure; friable, soft,
nonsticky, nonplastic; very fine roots; very fine tubular pores; 2 percent medium distinct 10YR 3/3
manganese masses on faces of peds and 5 percent extremely coarse prominent 5YR 4/4 masses of
oxidized iron on faces of peds; positive reaction to alpha-alpha' dipyridyl; artifacts: 1% metal - 12 cm; 2%
rubber - 10 cm; 2% plastic - 14 cm; 10% untreated wood - 6 cm; 5% cloth - 5 cm.
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