Location: Rosedale. | Australian Soil Classification: Eutrophic, Subnatric, Grey SODOSOL. |
Great Soil Group: soloth. | Geology: Pleistocene sediments. |
General Landscape Description: Level plain (0-1% slope). | Mapping Unit: Winnindoo. |
Site Description: Grazing paddock. |
Site GP61 Landscape |
A1 | 0-5 cm | Brown (10YR4/3); loam; weak consistence moist; pH 5.1; abrupt change to: | Site GP61 Profile |
A2 | 5-20 cm | Brown (10YR5/3), conspicuously bleached (10YR6/2d) with faint yellowish brown (10YR5/8) mottles; fine sandy clay loam; weak coarse blocky structure, becoming massive; strong consistence dry; at 15-20 cm depth there are a few (2%) subangular ferromanganiferous segregations (2-6 mm in size); pH 5.0; clear and wavy change to: | |
Subsoil | |||
B1 | 20-40 cm | Greyish brown (10YR5/2) with yellowish brown (10YR5/8) mottles; light clay; moderate coarse prismatic, parting to moderate coarse blocky structure; very firm consistence moist; contains few (2%) quartz fragments (<2 mm in size) and a few ferromanganiferous segregations (2-6 mm in size); pH 6.1; gradual change to: | |
B21 | 40-60 cm | Greyish brown (10YR5/2) with yellowish brown (10YR5/8) mottles; medium clay; moderate coarse prismatic, parting to moderate coarse blocky structure; strong consistence dry; contains a few (2%) quartz fragments (<2 mm in size); pH 6.4: | |
B22 | 60-90 cm | Greyish brown (10YR5/2) with yellowish brown (10YR5/8) mottles; medium clay; moderate coarse prismatic, parting to moderate medium prismatic structure; very firm consistence moist; contains a few (2%) subangular ferromanganiferous segregations (<2 mm in size), as well as a few (2%) quartz fragments (<2 mm in size); pH 6.2: | |
B3 | 90+ cm | Light grey (10YR7/2) with brownish yellow (10YR6/8) mottles; medium clay; weak to moderate coarse prismatic, parting to weak lenticular structure; sand lenses present; pH 5.5. |
Horizon | pH | Salinity Rating | ||
Surface (A1 horizon) | Strongly Acid | Moderate | Non-Sodic | None |
Subsoil (B1 horizon) | Slightly Acid | Very Low | Sodic | Slight1 |
Deeper Subsoil (at 90 cm) | Strongly Acid | Moderate-High | Sodic | - |
The surface soil is strongly acid. The subsoil is slightly acid becoming strongly acid at 90 cm. | The surface soil is non-sodic. The subsoil is sodic throughout. | ||
The surface salinity rating is moderate. The subsoil is very low, becoming moderate to high at depth. | The clay content increases gradually with depth. |
Horizon | Horizon Depth
(cm) | pH
(water) | pH
(CaCl2) | EC 1:5 | NaCl | Exchangeable Cations | |||
Ca | Mg | K | Na | ||||||
meq/100g | |||||||||
A1 | 0-5 | 5.1 | 4.6 | 0.4 | 0.06 | 6.6 | 1.9 | 1.2 | 0.1 |
A2 | 5-20 | 5 | 4.5 | 0.09 | 3.1 | 2.2 | 0.6 | 0.21 | |
B1 | 20-40 | 6.1 | 5.1 | 0.07 | 2.3 | 3.8 | 0.28 | 0.47 | |
B21 | 40-60 | 6.4 | 5.5 | 0.22 | 2.3 | 6.7 | 0.31 | 1.6 | |
B22 | 60-90 | 6.2 | 5.6 | 0.47 | 0.11 | 2.1 | 6.9 | 0.3 | 1.1 |
B3 | 90+ | 5.5 | 4.9 | 0.77 | 0.17 | 1.5 | 7.1 | 0.2 | 1.7 |
Horizon | Horizon Depth (cm) | Exchangeable Aluminium mg/kg | Exchangeable Acidity meq/100g | Field Capacity pF2.5 | Wilting Point pF4.2 | 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 | 0-5 | <10 | 13 | 10.5 | 12 | 36 | 18 | 21 | |
A2 | 5-20 | <10 | 5.6 | 8.8 | 10 | 41 | 21 | 24 | |
B1 | 20-40 | <10 | 1.3 | 9.9 | 11 | 37 | 19 | 31 | |
B21 | 40-60 | 3.9 | 13.5 | 9 | 31 | 15 | 42 | ||
B22 | 60-90 | <10 | 3.9 | 15.4 | 7 | 28 | 16 | 46 | |
B3 | 90+ | 2 | 4.5 |