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ͪشԹ  :  ѧ  Trang (Tng)
 
 
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Ap
0-9
Yellowish red (5YR4/6) clay loam; weak fine subangular blocky structure to crumb structure; friable, sticky and plastic, many very fine interstitial and tubular pores; many very fine and fine roots; common fine of charcoal; many fine to medium manganese oxide nodule; moderately acid (field pH 6.0); clear smooth boundary.
BA
9-17
Red (2.5YR4/6) clay; weak to moderate fine subangular blocky structure; friable, sticky and plastic, common very fine interstitial and common fine tubular pores; common medium to large animal holes; common fine roots; few fine pieces of charcoal; few fine to medium manganese and iron oxide nodules; strongly acid (field pH 5.5); gradual smooth boundary.
Bt1
17-44
Red (2.5YR4/6) clay; weak fine and medium subangular blocky structure; friable, sticky and plastic, patchy thin cutan on ped faces and in pores; common very fine to fine interstitial pores; few medium animal holes; few fine roots; few fine pieces of charcoal; few fine manganese and iron oxide nodules; strongly acid (field pH 5.5); gradual smooth boundary.
Bt2
44-96
Red (2.5YR4/6) clay; weak medium and coarse subangular blocky structure; friable to firm, sticky and plastic, patchy thin cutan on ped faces and in pores; many very fine and fine interstitial and tubular pores; few medium animal holes; few large decayed, few fine roots; common fine and medium manganese and iron oxide nodules; very strongly acid (field pH 4.5); gradual smooth boundary.
Btc
96-130
Red (2.5YR4/6) gravelly clay; weak medium and coarse subangular blocky structure; friable to firm, sticky and plastic, patchy thin cutan on ped faces and in pores; common very fine interstitial and few fine tubular pores; few fine roots; common to many fine and medium manganese and iron oxide nodules; gravels composed of ironstones more than 35% by volume of the soil matrix; very strongly acid (field pH 4.5).