Property: Rutherglen Research Institute.
Paddock Number: 2 East.
Australian Soil Classification: Mottled, Eutrophic, Brown CHROMOSOL.
Northcote Factual Key: Dy 3.32
Great Soil Group: No suitable group.
General Landscape Description: Original vegetation included Yellow Box (E. melliodora) and Yellow Gum (E. leucoxylon).
Soil Mapping Unit: Rutherglen loam (normal phase).
Site NE41 Landscape |
A1 | 0-15 cm | Dark yellowish brown (10YR4/4); fine sandy loam; weak coarse blocky structure; weak consistence moist; pH 5.4; abrupt change to: | Site NE41 Profile |
A2 | 15-20 cm | Yellowish brown (10YR5/4) sporadically bleached; light fine sandy clay loam; structureless; firm consistence dry; pH 6.1; abrupt change to: | |
Subsoil | |||
B21 | 20-40 cm | Strong brown (7.5YR5/6);light medium clay; weak coarse blocky, parting to medium blocky structure; strong consistence dry; pH 7.1; gradual change to: | |
B22 | 40-70 cm | Strong brown (7.5YR5/6) with dark red (2.5YR4/8) mottles; medium clay; moderate medium polyhedral structure; strong consistence dry; pH 7.5: | |
B23 | 70-110 cm | Brownish yellow (10YR6/6) with yellowish red (5YR5/8) mottles; light medium clay; strong consistence dry; contains a common (15%) amount of manganese concretions (10-15 mm size); pH 7.8: | |
B3 | 110 cm+ | Pale brown (10YR6/3) with brownish yellow (10YR6/6) and strong brown (7.5YR5/6) mottles; medium heavy clay; moderate coarse prismatic, parting to moderate coarse blocky to fine blocky structure; strong consistence dry; contains a common (15%) amount of manganese segregations (10 -15 mm size); pH 7.8. |
The surface horizon is strongly acid. The subsurface (A2) horizon is slightly acid. The subsoil is slightly alkaline | The soil profile is non-sodic throughout. | ||
Soluble salt levels are very low throughout the soil profile. | The clay percentage increases significantly at the A/B horizon interface. |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | Exchangeable Cations | Exchangeable Aluminium 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) | |||
Ca | Mg | K | Na | ||||||||||||
meq/100g | |||||||||||||||
A1 | 0-15 | 5.4 | 4.4 | <0.05 | 1.4 | 0.49 | 0.47 | <0.05 | 14 | 24 | 5 | 9 | 54 | 24 | 13 |
A2 | 15-20 | 6.1 | 5.2 | <0.05 | 3.3 | 0.69 | 0.43 | 0.06 | |||||||
B21 | 20-40 | 7.1 | 5.9 | <0.05 | 6.1 | 1.8 | 0.74 | 0.13 | 27 | 13 | 6 | 37 | 17 | 41 | |
B22 | 40-70 | 7.5 | 6.3 | <0.05 | 6.1 | 2.4 | 0.74 | 0.13 | 29 | 13 | 5 | 36 | 15 | 43 | |
B23 | 70-110 | 7.8 | 6.6 | <0.05 | 5.1 | 2.7 | 0.67 | 0.14 | 26 | 11 | |||||
B3 | 110 | 7.8 | 6.5 | <0.05 | 6.2 | 7.2 | 0.98 | 0.7 |