MOP5
| Location: Red Hill South | Australian Soil Classification: Bleached-Vertic, Eutrophic, Brown CHROMOSOL (thick surface horizons) |
| Land Use: Vineyard |  |
MOP5 Landscape
Soil Profile Morphology:
Surface Soil
| A11 | 0-15 cm | Dark greyish brown (10YR 4/2); fine sandy loam; moderate medium to fine sub-angular blocky structure; firm (dry) consistence; pH 5.6 |  MOP5 Profile |
| A12 | 15-25 cm | Brown (10YR 4/3); fine sandy loam; moderate medium to fine sub-angular blocky structure; firm (dry) consistence; field pH 6.5 | |
| A21 | 25-32 cm | Light yellowish brown (10YR 6/4), conspicuously bleached very pale brown (10YR 7/3 dry); silty loam; weakly structured; very firm (dry) consistence; contains very few (1%) ferromanganiferous nodules; field pH 6.8 | |
| A22 | 32-45 cm | Brown (10YR 5/3), conspicuously bleached very pale brown (10YR 7/3 dry); light silty clay loam; massive; very firm to strong (dry) consistence; contains few (2-5%) ferromanganiferous nodules; pH 5.9; sharp change to: | |
| Subsoil | |||
| B21 | 45-70 cm | Yellowish brown (10YR 5/4) with brown (7.5YR 5/4) mottles; medium heavy clay; weak to moderate coarse prismatic, parting to moderate to strong coarse to medium sub-angular blocky structure (strong medium to fine polyhedral structure in patches); pH 5.9: | |
| B22 | 70-110 cm | Yellowish brown (10YR 5/4) with reddish brown (5YR 5/4) mottles; medium heavy clay; strong coarse to fine polyhedral structure (with moderate to strong medium lenticular structure in patches); strong (dry) consistence; contains few (2%) manganese stains; pH 5.9: | |
| B23 | 110-130 cm | Yellowish brown (10YR 5/4) with reddish brown (5YR 5/4), yellowish brown (10YR 5/6) mottles – becoming stronger red and grey mottling at depth; strong coarse to very fine polyhedral structure (shiny ped faces); pH 5.9. | |
Key Profile Features:
- Strong texture contrast between surface (A) horizons (17% clay) and upper subsoil (B21) horizon (62% clay).
- Conspicuously bleached subsurface (A2) horizon.
| pH | Salinity Rating | ||
Surface (A1 horizon) | Moderately Acid | | | |
Subsoil (B21 horizon) | Moderately Acid | | | |
Deeper subsoil (at 100-130 cm) | Moderately Acid | | | |
Horizon | Horizon Depth | pH (water) | pH CaCl2 | EC 1:5 | NaCl | Exchangeable Cations | |||
Ca | Mg | K | Na | ||||||
Meq/100g | |||||||||
A11 | 0-15 | 5.6 | 4.9 | | 0.1 | 4.9 | 1.4 | 0.19 | 0.25 |
A12 | 15-25 | | | | | | | | |
A21 | 25-32 | | | | | | | | |
A22 | 32-45 | 5.9 | 5.2 | | <0.05 | 1 | 0.59 | <0.05 | 0.13 |
B21 | 45-70 | 5.9 | 5.4 | | 0.09 | 2.8 | 5.6 | 0.11 | 0.52 |
B22 | 70-110 | 5.9 | 5.4 | | 0.07 | 2.7 | 6.4 | 0.12 | 0.58 |
B23 | 110-130 | 5.9 | 5.6 | | 0.1 | 2.6 | 7.8 | 0.14 | 0.7 |
Horizon | Horizon Depth | Ex Al mg/kg | Ex Ac meq/100g | Field pF 2.5 | Wilting Point pF4.2 g/100g | Coarse Sand (0.2-2.0mm) % | Fine Sand (0.02-0.2mm) % | Silt (0.002-0.02mm) % | Clay (<0.002mm) % |
A11 | 0-15 | | 12 | | | | | | |
A12 | 15-25 | | | | | | | | |
A21 | 25-32 | | | | | | | | |
A22 | 32-45 | | 3.1 | | | | | | |
B21 | 45-70 | | 8.8 | | | | | | |
B22 | 70-110 | | 8.6 | | | | | | |
B23 | 110-130 | | | | | | | | |
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