ѵԢͧشԹѴ


͸ԺԹ
ͪشԹ  :  ˹ͧ͹  Nong Bon (Nb)
 
 
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ͪ鹴Թ
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͸Ժª鹴Թ
A
0-15
Brown to dark brown (7.5YR4/4) clay loam; moderate fine and medium subangular blocky structure and fine granular structure at the upper most of the horizon; friable, slightly sticky and slightly plastic; many fine interstitial pores, common fine and medium tubular pores; many fine, common medium and few coarse roots; moderately acid (field pH 6.0); gradual smooth boundary.
Bw
15-65
Brown to dark brown (7.5YR4/4) clay loam; weak coarse subangular blocky structure; friable, sticky and slightly plastic; many fine interstitial and common fine tubular pores; few fine and medium roots; strongly acid (field pH 5.5); diffuse smooth boundary.
Bt1
65-120
Reddish brown to dark brown (5-7.5YR4/4) clay; weak coarse subangular blocky structure; friable, sticky and slightly plastic; thin patchy clay coating on ped faces; many fine interstitial and common fine tubular pores; few fine and medium roots; very strongly acid (field pH 5.5); diffuse smooth boundary.
Bt2
120-150
Reddish brown to dark brown (5-7.5YR4/4) clay; weak coarse subangular blocky structure; friable, sticky and slightly plastic; thin patchy clay coating on ped faces; many fine interstitial and common fine tubular pores; few fine and medium roots; very strongly acid (field pH 5.0).