ѵԢͧشԹѴ


͸ԺԹ
ͪشԹ  :  ҡͧ  Pak Chong (Pc)
 
 
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Ap
0-12
Dark red (2.5YR3/6 dry), dark reddish brown (2.5YR3/4 moist) silty clay; moderate fine subangular blocky breaking to fine granular structure; slightly hard; friable, sticky, plastic; many fine roots; slightly acid (field pH 6.5); clear, smooth boundary.
Bt1
12-53
Dark red (2.5YR3/6 dry), dusky red (10 R 3/4 moist) clay; moderate medium subangular blocky structure; hard, friable, sticky, plastic; broken moderately thick cutan on ped faces; common fine roots; very strongly acid (field pH 4.5); diffuse, smooth boundary.
Bt2
53-137
Dark red (2.5YR3/6 dry), dusky red (10 R 3/4 moist) clay; moderate medium subangular blocky structure; hard, friable, sticky, plastic; patchy moderately thick cutan on ped faces; common fine roots; very strongly acid (field pH 4.5); diffuse, smooth boundary.
Bt3
137-200
Dark red (10R3/6) clay; weak fine subangular blocky structure; friable, sticky, plastic; patchy thin cutan on ped faces; few fine roots; very strongly acid (field pH 4.5).