Property: LP47 | Australian Soil Classification: Vertic (and Calcic), Subnatric, Red SODOSOL |
Northcote Factual Key:Dr 2.13 | Great Soil Group: red-brown earth |
General Landscape Description: Level alluvial plain near Pyramid Hill. |
LP47 Landscape |
A11 | 0-5 cm | Strong brown (7.5YR5/6); silty clay loam; surface flake; structureless; very firm consistence dry; pH 6.0; abrupt and wavy change to: | LP47 Profile |
A12 | 5-10 cm | Strong brown (7.5YR4/6); silty clay loam; structureless, strong consistence dry, pH 6.3; sharp and wavy change to: | |
Subsoil | |||
B21 | 10-35 cm | Reddish brown (5YR4/4); medium clay; moderate coarse prismatic, parting to strong blocky structure; very firm consistence dry; pH 7.8; clear and wavy change to: | |
B22 | 35-50 cm | Yellowish red (5YR5/8); light medium clay; moderate coarse polyhedral structure, slickensides evident; firm consistence moist; pH 8.5; gradual change to: | |
B23 | 50-90 cm | Yellowish red (5YR5/6); medium clay; strong medium polyhedral structure; firm consistence moist; contains a few (2-10%) fine-earth carbonates and gypsum crystals (5%) in pockets; pH 7.8; gradual change to: | |
B3 | 90+ cm | Pale brown (10YR6/3); light medium clay; strong medium polyhedral structure; firm consistence moist; contains very few (2%) coarse calcareous nodules (with silica); pH 8.5. |
pH | Salinity Rating | |||
Surface (A1 horizon) | moderately acid | low | non-sodic | none1 |
Subsoil (B21 horizon) | slightly alkaline | very low | sodic | moderate |
Deeper subsoil (90 cm) | moderately alkaline | very high | strongly sodic | none2 |
1 Slight dispersion after remoulding. 2 No dispersion due to high Total Soluble Salt content |
Horizon | Horizon Depth | pH (water) | EC 1:5 | NaCl | Exchangeable Cations | |||
Ca | Mg | K | Na | |||||
meq/100g | ||||||||
A11 | 0-5 | 6 | 0.47 | <0.05 | 4.7 | 1.8 | 0.6 | 0.1 |
A12 | 5-10 | 6.3 | 0.13 | 3.5 | 2.4 | 0.5 | 0.3 | |
B21 | 10-35 | 7.8 | 0.26 | 0.05 | 8.1 | 7.6 | 1 | 2.6 |
B22 | 35-50 | 8.5 | 0.63 | <0.05 | 7.6 | 8.9 | 0.8 | 4.3 |
B23 | 50-90 | 7.8 | 3.75 | 0.15 | 15 | 8.7 | 0.9 | 5.3 |
B3 | 90+ | 8.5 | 1.95 | 0.36 | 6.8 | 9.3 | 0.9 | 5.9 |
Horizon | Horizon Depth | Ex Al mg/kg | Ex Ac meq/100g | Field pF2.5 | Wilting Point pF4.2 | Coarse Sand (0.2-2.0mm) | Fine Sand (0.02-0.2mm) | Silt (0.002-0.02mm) | Clay (<0.002mm) |
A11 | 0-5 | 27.5 | 12 | 1 | 31 | 43 | 26 | ||
A12 | 5-10 | 23.3 | 13.2 | 1 | 27 | 43 | 29 | ||
B21 | 10-35 | 35.9 | 24.9 | 0.4 | 10 | 24 | 65 | ||
B22 | 35-50 | ||||||||
B23 | 50-90 | ||||||||
B3 | 90+ |