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ͪشԹ  :    Roi Et (Re)
 
 
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Ap
0-19
Brown (7.5YR5/2) sandy loam; common fine and medium distinct yellowish brown (10YR5/6) mottles; weak fine subangular blocky structure; very friable, nonsticky, nonplastic; common fine tubular pores; some dark patchy decomposed organic matter and some spots of pinkish fine sand; strongly acid (field pH 5.5); abrupt, smooth boundary.
BA
19-38
Light brown (7.5YR6/4) sandy clay loam; many medium distinct strong brown (7.5YR5/6) and common fine yellowish red (5YR5/8) mottles; weak fine and medium subangular blocky structure; slightly sticky, slightly plastic; few medium interstitial and common very fine and fine tubular pores; some dark patchy decomposed organic matter along old root channels; medium acid (field pH 6.0); abrupt, smooth boundary.
Btg1
38-50
Pinkish gray (7.5YR7/2) sandy clay loam; common fine and medium distinct yellowish brown (10YR5/6) and strong brown (7.5YR5/6) mottles; weak medium subangular blocky structure; slightly sticky, slightly plastic; common very fine and fine tubular pores; few fine roots; some black spots of soft manganese concretions; medium acid (field pH 6.0); gradual, smooth boundary.
Btg2
50-74
Pinkish gray (7.5YR7/2) sandy clay loam; many fine and medium yellowish brown (10YR5/8) mottles; weak medium subangular blocky structure; slightly sticky, slightly plastic; many fine tubular and few medium interstitial pores; very few fine roots; very strongly acid (field pH 5.0); clear, smooth boundary.
BCg
74-93+
Light brownish gray (10YR6/2) sandy clay loam; many fine and medium distinct yellowish brown (10YR5/6) and few fine distinct strong brown (7.5YR5/6) mottles; weak fine subangular blocky structure; sticky, slightly plastic; many fine tubular pores; very few fine roots; thin layer of soft iron-manganese concretions at upper part of the horizon; very strongly acid (field pH 5.0)