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ͪشԹ  :  ä  Maha Sarakham (Mk)
 
 
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Ap
0-23
Very dark grayish brown (10YR3/2) loamy fine sand; weak fine and medium subangular blocky structure; very friable, slightly sticky, slightly plastic; many very fine interstitial pores; common very fine and fine roots; medium acid (field pH 6.0); clear, smooth boundary.
Bt4
180-210
Light reddish brown (5YR6/3) sandy clay loam; common coarse distinct strong brown (7.5YR5/6) and common medium prominent yellowish red (5YR5/6) and red (10R4/8) mottles; moderate medium and coarse subangular blocky structure; firm, sticky, plastic; patchy thin clay coating on ped faces and in pores; few very fine roots; very strongly acid (field pH 5.0).
Bt3
130-180
Light reddish brown (5YR6/3) sandy loam; many coarse distinct yellowish brown (10YR5/8) and common medium distinct strong brown (7.5YR5/6) mottles; common sand spots of light reddish brown (5YR6/4); moderate medium and coarse subangular blocky structure; friable, sticky, plastic; patchy thin clay coating on ped faces and in pores; many very fine interstitial and common very fine tubular pores; few very fine roots; few soft iron-manganese concretions; strongly acid (field pH 5.5); clear, smooth boundary.
Bt2
95-130
Yellowish brown (10YR5/4) sandy loam; common medium distinct yellowish red (5YR5/6) and common medium faint yellowish brown (10YR5/6) mottles; sand bleached of light reddish brown (5YR6/4); moderate medium and coarse subangular blocky structure; friable, sticky, plastic; patchy thin clay coating on ped faces and in pores; many very fine interstitial and common very fine tubular pores; few very fine roots; medium acid (field pH 6.0); gradual, smooth boundary.
Bt1
70-95
Brown (7.5YR5/4) sandy loam; common fine distinct strong brown (7.5YR5/6) mottles; moderate medium and coarse subangular blocky structure; friable, sticky, plastic; patchy thin clay coating on ped faces and in pores; many very fine interstitial and common very fine tubular pores; mildly alkaline (field pH 7.5); gradual, smooth boundary.
E
38-70
Light reddish brown (5YR6/4) loamy fine sand; weak fine and medium subangular blocky structure breaking to single grains; very friable, nonsticky, nonplastic; many very fine interstitial pores; few very fine roots; mildly alkaline (field pH 7.5); clear, smooth boundary.
AE
23-38
Dark brown (10YR3/3) and brown (7.5YR5/4) loamy fine sand; weak fine and medium subangular blocky structure; friable, nonsticky, nonplastic; many very fine interstitial pores; few very fine roots; slightly acid (field pH 6.5); gradual, smooth boundary.