ESAS4
| Plot: O'Keefe | Location: Boorhamon |
| Aust. Soil Class: Bleached, Eutrophic, Red DERMOSOL | |
 ESAS4Landscape |
Soil Profile Morphology:
Surface Soil
Ap | 0-10 cm | Brown (10YR4/3); fine sandy clay loam; very firm to strong consistence (dry); some compaction; pH 5.7; abrupt change to: |  ESAS4 profile |
A2 | 10-20 cm | Yellowish red (5YR5/6); very fine sandy clay loam; strong consistence (dry); some compaction; pH 5.5; clear change to: | |
| Subsoil | |||
B1 | 20-30 cm | Red (2.5YR4/8); very fine sandy clay loam; weak coarse (20 - 50 mm) blocky structure; strong to very strong consistence (dry); pH 5.2; clear change to: | |
B21 | 30-60 cm | Red (2.5YR4/6); light medium clay; moderate fine to coarse (5 – 50 mm) subangular blocky structure; strong to very strong consistence (dry); pH 5.6; gradual change to: | |
B22 | 60-90 cm | Red (2.5YR5/8); medium clay (fine sandy); moderate to strong fine to coarse (5 – 50 mm) polyhedral structure; strong to very strong consistence (dry); pH 6.3; gradual change to: | |
B23 | 90+ cm | Strong brown (7.5YR5/6) with many (40%) dark yellowish brown (10YR4/4); medium clay (fine sandy); moderate coarse (50 – 100 mm) prismatic, parting to moderate medium to coarse (10 – 50 mm) subangular blocky structure; very strong consistence (dry); pH6.3. | |
- Gradual increase in texture (i.e. clay content) with depth down the soil profile
Soil Profile Characteristics:
 | pH | Salinity Rating | Sodicity | Dispersion |
Surface (A1 horizon) | Moderately Acid | Very Low | Non-Sodic | None1 |
Subsoil (B21 horizon) | Moderately Acid | Very Low | Non-Sodic | None |
Deeper subsoil (at 90+ cm) | Slightly Acid | Very Low | Non-Sodic | None |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | Exchangeable Cations | | |||
Ca | Mg | K | Na | | |||||
meq/100g | | ||||||||
Ap | 0-15 | 5.7 | 5.1 | 0.09 | 1.7 | 3.9 | 0.5 | 0.98 | <0.05 |
A2 | 15-20 | 5.5 | 4.9 | <0.05 | 0.58 | 2.3 | 0.38 | 0.43 | <0.05 |
B1 | 20-30 | 5.2 | 4.7 | 0.05 | | 2.5 | 0.61 | 0.44 | <0.05 |
B21 | 30-60 | 5.6 | 5 | 0.05 | | 3.1 | 1.9 | 0.56 | <0.05 |
B22 | 60-90 | 6.3 | 5.7 | 0.05 | | 2.1 | 3.6 | 0.37 | 0.09 |
B23 | 90+ | 6.3 | 5.8 | 0.05 | | 2 | 4.2 | 0.33 | 0.11 |
Horizon | Horizon Depth (cm) | Exchangeable Aluminium (mg/kg) | Exchangeable Acidity (meq/100g) | 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) |
Ap | 0-15 | <10 | 5.6 | 26.5 | 7.4 | 4 | 46 | 31 | 15 |
A2 | 15-20 | <10 | 3.9 | 21.1 | 7 | 3 | 49 | 27 | 18 |
B1 | 20-30 | 14 | 4.1 | 22.1 | 8.9 | 3 | 46 | 22 | 27 |
B21 | 30-60 | <10 | 4.3 | 23.5 | 12.1 | 3 | 36 | 20 | 41 |
B22 | 60-90 | <10 | 4.5 | 25.0 | 11.9 | 4 | 42 | 22 | 32 |
B23 | 90+ | <10 | 3.7 | 25.1 | 10.6 | 2 | 53 | 18 | 24 |
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