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ͪشԹ  :  Ҵ  Trat (Td)
 
 
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Ap
0-11
Dark yellowish brown (10YR4/4) clay loam; weak fine and medium subangular blocky structure; very friable, slightly sticky and slightly plastic; common tubular pores; many fine and medium roots; very strongly acid (field pH 5.0); gradual smooth boundary.
Bt1
11-35
Strong brown (7.5YR5/8) clay; weak fine and medium subangular blocky structure; very friable, sticky and plastic; patchy thin cutan on ped faces; many interstitial and tubular pores; common large, common medium and many fine roots; very strongly acid (field pH 4.5); diffuse smooth boundary.
Bt2
35-84/88
Yellowish red (5YR5/8) clay; weak fine and medium subangular blocky structure; very friable, sticky and plastic; patchy thin cutan on ped faces; many interstitial and tubular pores; few coarse and fine roots; very strongly acid (field pH 4.5); clear wavy boundary.
Btc
84/88-130
Yellowish red (5YR5/8) very gravelly clay; friable, slightly sticky and slightly plastic; common interstitial and fine tubular pores; very few coarse and medium roots; gravels composed of ironstones more than 35% by volume of the soil matrix; very strongly acid (field pH 4.5).