Download Principles of Soil Science - Laboratory 6 | SSC 012 and more Lab Reports Agricultural engineering in PDF only on Docsity! Laboratory #6 Objectives: Become familiar with soil profile descriptions typically found in soil surveys. Use the provided information to fill out an official soil description card. Lab Activity: Profile #1 - Profile description of the soil at Pit #1, Schenck Forest near Tube #8. Soil is located on the interfluve. Soil Series: Cecil. Family: Clayey, kaolinitic, thermic Typic,,Hapludults. Reddish brown (5YR 4/4) loam; weak fine granular and subangular blocky structure; friable; gradual smooth boundary. Reddish brown (5YR 4/4) with small pieces of 2.5YR 4/6 mixed in; loam, a little heavier than above; weak medium subangular blocky structure; firm to friable; slightly sticky and slightly plastic, clear smooth boundary. Red (2.5YR 4/6) clay; weak coarse subangular blocky structure; firm to very firm; sticky, slightly plastic; thin to moderately thick discontinuous clay films on ped faces; gradual smooth boundary. Red (10R 4/6) clay to silty clay; strong fine subangular blocky structure; firm; sticky; slightly plastic; moderately thick continuous clay films on ped faces; gradual wavy boundary. Red (10R 4/6) with some variegations due to remnants of saprolite and few low chroma colors that may be related to reduction of iron; silty clay loam; moderate fine and medium subangular blocky structure; very firm to firm; sticky; slightly plastic; moderately thick continuous clay films on most ped faces (but fewer than above); diffuse wavy boundary. Red (10R 4/6 and 2.5YR 4/6) and yellow (10YR 7/6 and 10YR 7/8) silt loam; massive to weak coarse subangular blocky in red parts and moderately expressed thin foliations (similar to platy but rock controlled and oriented near vertical) in yellow parts; slightly sticky and slightly plastic overall; moderately thick to thin discontinuous clay films on ped faces and pores in clayey, red, Bt Horizon Depth (cm) Ap1 0-5 Ap2 5-15 Bt1 15-28 Bt2 28-64 Bt3 64-97 Bt/C 97-130 C 130-229 parts; diffuse wavy to irregular Variegated brownish yellow (10YR 6/8 and 6/6) light yellowish brown (10YR 6/4), light reddish brown (2.5 YR 6/4), and white (10YR 8/1) soft saprolite that crushes to silt loam; rock controlled structure; firm to friable and brittle; slightly sticky and slightly plastic. Name: Soil: Profile #1 – Soil at Pit #3 Horizon Depth (cm) Color Mottling Texture Structure Other Ap1 0-5 Reddish Brown 5YR 4/4 None Loam Weak granular/weak subangular blocky
