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ͪشԹ  :  Ӵء  Nam Duk (Nd)
 
 
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֡(.)
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Ap
0-18
Brown to dark brown (7.5YR3-4/2) loam; moderate fine and medium subangular blocky structure; friable, slightly sticky, slightly plastic; many very fine roots; medium acid (field pH 6.0); clear, smooth boundary.
Bt1
18-36/47
Yellowish red (5YR4/6) clay loam; moderate medium subangular blocky structure; firm; sticky, plastic; moderately thick continuous clay coatings on ped faces and in pores; many very fine roots; strongly acid (field pH 5.5); clear, wavy boundary.
Bt2
36/47-70
Reddish brown (5YR4/4) loam to clay loam; moderate medium subangular blocky structure; firm, sticky, plastic; moderately thick continuous clay coatings on ped faces and in pores; common very fine roots; medium acid (field pH 6.0); clear, smooth boundary.
Bt3
70-116
red (2.5YR4/6) and dark reddish brown (5YR3/4) loam; many fine and medium distinct strong brown (7.5YR5/6) mottles; moderate coarse subangular blocky structure; firm, sticky, plastic; patchy thin clay coatings on ped faces and in pores; few very fine roots; slightly acid (field pH 6.5); gradual, smooth boundary.
Bt4
116-145
Red (2.5YR4/8) clay loam; many fine and medium distinct reddish yellow (7.5YR6/6) mottles; moderate coarse subangular blocky structure; firm, sticky, plastic; patchy thin clay coatings on ped faces and in pores; very few very fine roots; few fine soft and hard iron-manganese nodules; neutral (field pH 7.0); clear, smooth boundary.
BC
145-180+
Strong brown (7.5YR5/8) slightly gravelly clay loam; many fine and medium distinct yellowish red (5YR4/6) and common medium distinct brown (7.5YR5/2) mottles; weak coarse subangular blocky structure; firm, sticky, plastic; very fine roots; few soft and hard iron-manganese nodules; moderately alkaline (field pH 8.0).