Group: Navarre and Districts Landcare Group | Map Sheet: ST ARNAUD |
Aust. Soil Class.: Bleached, Eutrophic, Red CHROMOSOL | Northcote Factual Key: Dy 2.42 |
General Landscape Description: Lower alluvial terrace. | Geology: Quaternary alluvial deposits (Shepparton Formation) |
Soil Site LP 80 Landscape |
A11 | 0-12 cm | Brown (7.5YR4/4); fine sandy loam; massive; weak consistence moist; pH 5.3; clear change to: | Soil Site LP80 Profile |
A2 | 12-25 cm | Conspicuously bleached; light fine sandy loam; structureless; weak consistence moist; pH 5.4; abrupt change to: | |
Subsoil | |||
B1 | 25-30 cm | Yellowish red (5YR5/8); fine sandy clay loam; weak medium blocky structure; firm consistence moist; pH 5.4; abrupt change to: | |
B21 | 30-45 cm | Yellowish red (5YR5/8); medium clay; moderate medium blocky, parting to fine blocky structure; firm consistence moist; pH 6.1 abrupt and wavy change to: | |
B22 | 45-65 cm | Yellowish red (5YR4/6); medium heavy clay; weak coarse blocky, parting to moderate fine blocky structure; firm consistence moist; pH 6.7; gradual change to: | |
B23 | 65-90 cm | Strong brown (7.5YR5/6); medium clay; strong medium blocky, parting to fine blocky structure; firm consistence moist; pH 7.0; gradual change to: | |
B3 | 90+ cm | Strong brown (7.5YR5/6) with yellowish red (5YR5/6) and red (2.5YR5/8) mottles; very fine sandy clay loam; weakly structured; very firm consistence slightly moist; pH 7.3. |
pH | Salinity Rating | |||
Surface (A1 horizon) | strongly acid | low | non-sodic | - |
Subsoil (B21 horizon) | strongly acid | very low | non-sodic | none1 |
Deeper subsoil (at 90 cm) | slightly alkaline | very low | non-sodic | - |
Horizon | Horizon Depth | pH (water) | pH CaCl2 | EC 1:5 | NaCl | Exchangeable Cations | |||
Ca | Mg | K | Na | ||||||
Meq/100g | |||||||||
A11 | 0-12 | 5.3 | 4.3 | 0.05 | 1.3 | 0.4 | 0.3 | <0.1 | |
A12 | 12-25 | 5.4 | 4.4 | <0.05 | 0.4 | 0.1 | 0.2 | <0.1 | |
B1 | 25-30 | 5.4 | 4.4 | <0.05 | 1.8 | 0.7 | 0.4 | <0.1 | |
B21 | 30-45 | 6.1 | 5.3 | 0.05 | 3.7 | 1.9 | 0.6 | 0.1 | |
B22 | 45-65 | 6.7 | 5.7 | <0.05 | 5.1 | 3.4 | 0.7 | 0.1 | |
B23 | 65-90 | 7.0 | 6.0 | <0.05 | 4.4 | 3.7 | 0.6 | 0.2 | |
B24 | 90 | 7.3 | 6.2 | <0.05 | 2.5 | 1.9 | 0.3 | 0.1 |
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 | 0-12 | 19 | 5.4 | ||||||
A12 | 12-25 | 25 | 1.4 | ||||||
B1 | 25-30 | 32 | 4.1 | ||||||
B21 | 30-45 | ||||||||
B22 | 45-65 | ||||||||
B23 | 65-90 | ||||||||
B24 | 90 |