Property: Rutherglen Research Institute | Paddock #: 30 |
Aust. Soil Class.: Haplic, Eutrophic, Red CHROMOSOL (gravelly surface) | Northcote Factual Key: Dr 2.42 |
Great Soil Group: no suitable group | Map Unit: Type H |
General Landscape Description: Upper slope of hill (3% slope). (Ordovician sediments). |
Soil Profile Morphology:
A1 | 0-15 cm | Dark reddish brown (5YR3/3); sandy clay loam; weak consistence moist; contains many (50%) quartz gravel fragments (4-40 mm size); pH 5.5; abrupt change to: | NE40 Profile |
A2 | 15-20 cm | Yellowish red (5YR4/8); fine sandy clay loam; discontinuous; contains an abundant (70%) amount of quartz gravel (4-50 mm size); abrupt change to: | |
Subsoil | |||
B21 | 20-45 cm | Red (10R4/8); medium heavy clay; strong coarse blocky, breaking to strong fine polyhedral structure; firm consistence moderately moist; contains a trace (< 2%) amount of quartz gravel (2 - 5 mm size); pH 6.2; gradual change to: | |
B22 | 45-70 cm | Dark red (2.5YR4/8) with strong brown (7.5YR5/8) mottles; medium clay; strong coarse blocky, breaking to strong fine polyhedral structure; very firm consistence moderately moist; contains a few (2%) quartz gravel fragments (5-20 mm size); pH 6.9; | |
B23 | 70-100 cm | Dark red (10R3/6) with yellowish brown (10YR5/8) mottles; medium clay; moderate very coarse prismatic, breaking to moderate coarse blocky structure; very firm consistence moderately moist; contains a few (2%) quartz gravel fragments; pH 7.3; | |
B3 | 100-130 cm | Yellow (10YR7/6) with dark red (2.5YR4/8) mottles; light clay; moderate coarse prismatic, breaking to moderate coarse blocky to fine blocky structure; firm consistence moderately moist; contains many (50%) weathered rock fragments; pH 7.7. | |
C | 130+ cm | Mudstone. |
Key Profile Features:
The surface horizons are strongly acid. The upper subsoil is slightly acid and the deeper subsoil is slightly alkaline. | The salinity rating is very low throughout. | ||
The soil profile is non-sodic throughout. | There is a significant increase in clay percentage at the A/B horizon interface. |
Management Considerations:
Whole Profile