VIT8
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Soil Profile Morphology:
Surface Soil
| A1 | 0-10 cm | Brown (7.5YR 4/4); fine sandy clay loam; moderate coarse blocky parting to fine blocky; very few quartz fragments; pH 5.0; clear change to: |
| A2 | 10-20 cm | Strong brown (7.5YR 4/6); fine sandy clay loam; moderate to strong medium blocky; very firm consistence (dry); very few course fragments (20-40 mm); pH 5.1; clear change to: |
| Subsoil | ||
| B1 | 20-30 cm | Dark red )2.5YR 4/6); light clay (30-33%); moderate to strong medium blocky, parting to weak fine blocky; very firm consistence (dry); pH 5.3; clear change to: |
| B21 | 30-75 cm | Dark red (2.5YR 4/6); light medium clay; moderate coarse blocky, parting to moderate to strong medium, parting to moderate to strong fine blocky structure; weak consistence (moist); weathered sandstone at 50 cm; pH 5.2; gradual change to: |
| B22 | 75-110 cm | usky red (2.5YR 4/4); light medium clay; moderate medium blocky, parting to moderate to strong fine blocky structure; weathered sandstone common and some quartz fragments; increase in fragments to 10-15% mainly weathered sandstone; pH 5.3. |
Key Profile Features:
Soil Profile Characteristics:
Horizon | pH | Salinity Rating | ||
Surface (A11 horizon) | Strongly Acid | | | |
Subsoil (B21 horizon) | Strongly Acid | | | |
Deeper subsoil (at 75-110 cm) | Strongly Acid | | | |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | Exchangeable Cations | |||
Ca | Mg | K | Na | |||||
meq/100g | ||||||||
A1 | 0-10 | 5.0 | 4.3 | 0.10 | 3.2 | 1.2 | 0.83 | 0.06 |
A2 | 10-20 | 5.1 | 4.3 | <0.05 | 2.1 | 0.64 | 0.59 | <0.05 |
B1 | 20-30 | 5.3 | 4.4 | <0.05 | 2.6 | 0.76 | 0.59 | <0.05 |
B21 | 30-75 | 5.2 | 4.4 | <0.05 | 2.7 | 1.5 | 0.48 | ,0.05 |
B22 | 75-110 | 5.3 | 4.5 | <0.05 | 2.1 | 1.9 | 0.53 | 0.09 |
Horizon | Horizon Depth (cm) | Exchangeable Aluminium mg/kg | Exchangeable Acidity mg/kg | Field Capacity pF 2.5 | Wilting Point pF 4.2 | Coarse Sand (0.2-2.0 mm) | Fine Sand (0.02-0.2 mm) | Silt (0.002-0.02 mm) | Clay (<0.002 mm) |
A1 | 0-10 | 110 | | 31.4 | 10.9 | 8.8 | 24.9 | 30.5 | 23.5 |
A2 | 10-20 | 160 | | 26.0 | 14.5 | 6.6 | 27.3 | 33.0 | 27.0 |
B1 | 20-30 | 180 | | 25.5 | 12.1 | 5.2 | 24.3 | 28.5 | 38.0 |
B21 | 30-75 | 210 | | 38.1 | 16.3 | 5.2 | 18.9 | 25.0 | 48.5 |
B22 | 75-110 | 220 | | 29.6 | 17.4 | 5.9 | 19.1 | 25.0 | 48.5 |
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