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ͪشԹ  :  觹͹  Pong Nam Ron (Pon)
 
 
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Ap1
0-4
Brown (7.5YR5/2, dry) or very dark grayish brown (10YR3/2, moist) loam; moderate fine to medium granular structure; very hard, firm, slightly sticky and slightly plastic; many very fine to fine roots; neutral (field pH 7.0); clear smooth boundary.
Ap2
4-14
Brown (7.5YR5/2, dry) or dark brown (7.5YR3/2, moist) clay loam; weak medium subangular parting to moderate fine to medium granular structure; extremely hard, firm, slightly sticky and slightly plastic; common fine roots; slightly acid (field pH 6.5); clear smooth boundary.
Bw1
14-26
Light yellowish brown (10YR6/4, dry) or dark yellowish brown (10YR4/4, moist) clay loam; moderate medium subangular structure; extremely hard, firm, slightly sticky and slightly plastic; few fine roots; moderately acid (field pH 6.0); clear smooth boundary.
Bw2
26-43
Pale brown (10YR6/3, dry) or brown to dark brown (10YR4/3, moist) clay loam; moderate medium subangular structure; extremely hard, firm, slightly sticky and slightly plastic; coarse fragments, 10% larger than 19 mm mixed lithology; strongly acid (field pH 5.5); abrupt irregular boundary.
Cr
43-68
Brownish yellow (10YR6/6) and white (10YR8/2) weathered rock or saprolite; structureless; few medium roots in cracks.