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ͪشԹ  :  ෾  Si Thep (Sri)
 
 
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A
0-6
Grayish brown (10YR5/2) silt loam; few fine faint dark yellowish brown mottles; moderate fine and medium subangular blocky structure; slightly hard, slightly sticky, slightly plastic; very fine and fine and fine roots; medium acid (field pH 6.0); clear, smooth boundary.
ABg
6-16
Pinkish gray (7.5YR7/2) silt loam; common fine and medium yellow mottles; weak medium to coarse subangular blocky structure; slightly hard, sticky, plastic; common very fine to fine roots; very strongly acid (field pH 5.0); clear, smooth boundary.
Btg1
16-30
Pinkish gray (7.5YR7/2) silt loam; many fine to medium distinct reddish yellow mottles; weak medium subangular blocky; structure; slightly hard, sticky, plastic; few fine roots; very strongly acid (field pH 4.5); gradual, smooth boundary.
Btg2
30-47
Pinkish gray (7.5YR6/2-7/2) silt loam; many coarse distinct strong brown and yellowish red mottles; weak medium subangular blocky structure; hard, sticky, plastic; few very fine and medium roots; very strongly acid (field pH 4.5); clear, smooth boundary.
Btg3
47-77
Pinkish gray (7.5YR6/2) silty clay loam; many coarse distinct strong brown mottles; moderate medium subangular blocky structure; slightly firm, sticky, plastic; broken thin cutans on ped faces; few small soft, irregular red and black iron stone nodules; few very fine roots; very strongly acid (field pH 4.5); gradual, smooth boundary.
Btgv
77-112+
Pinkish gray (7.5YR7/2); gravelly clay loam (forming 5YR5/8 laterite); moderate medium subangular blocky structure; slightly friable, sticky, plastic; broken thin cutans on some ped faces; many small soft and hard irregular red and black ironstone nodules; few very fine roots; very strongly acid (field pH 4.5).