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ͪشԹ  :  غ  Ubon (Ub)
 
 
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Ap
0-18
Dark brown to brown (7.5YR4/2) loamy sandy; weak medium subangular blocky structure breaking to single grain; very friable, nonsticky, nonplastic; common very fine interstitial pores; many very fine and fine roots; slightly acid (field pH 6.5); clear, smooth boundary.
BA1
18-56
Light reddish brown (5YR6/4) loamy sand; few fine distinct strong brown (7.5YR5/6) mottles; very weak coarse subangular blocky structure breaking to single grain; very friable, nonsticky, nonplastic; very fine interstitial pores; few very fine and fine roots; slightly acid (field pH 6.5); gradual, slightly wavy boundary.
BA2
56-94
Light reddish brown (5YR6/4) loamy sand; common medium distinct strong brown (7.5YR5/6) and common fine distinct pinkish gray (7.5YR6/2) mottle; very weak coarse subangular blocky structure breaking to single grain; very friable; nonsticky, nonplastic; few very fine interstitial pores; slightly acid (field pH 6.5); abrupt, smooth boundary.
Bt1
94-120
Pink (5YR7/3) sandy loam; common fine distinct pinkish gray (7.5YR6/2) mottles; moderate medium and coarse subangular blocky structure; friable; nonsticky, nonplastic; few very fine interstitial pores; slightly acid (field pH 6.5); gradual, wavy boundary.
Bt2
120-164
Pinkish gray (5YR7/2) sandy loam; common medium distinct strong brown (7.5YR5/6) mottles; moderate medium and coarse subangular blocky structure; nonsticky, nonplastic; few very fine interstitial pores; slightly acid (field pH 6.5); gradual, wavy boundary.
Bt3
164-200
Light gray (5YR7/1) and pinkish gray (5YR7/2) sandy clay loam; many coarse distinct strong brown (7.5YR5/8) and many coarse prominent red (10R4/8) mottles; strong medium and coarse subangular blocky structure; firm, slightly sticky, slightly plastic; few fine interstitial pores; slightly acid (field pH 6.5).