Location: Sutton. | |
Australian Soil Classification: Epihypersodic, Pedal, Hypercalcic, CALCAROSOL (loamy surface). | |
Geology: Quaternary alluvial & aeolian deposits. | General Landscape Description: Gently undulating plain with subdued rises. |
Site Description: Cropping paddock – low rise. |
Site MP44 Landscape |
Ap | 0-5 cm | Dark yellowish brown (10YR4/4); light sandy clay loam; soft surface condition; very weak to weak consistence (dry); highly calcareous; pH 8.6; abrupt change to: | Site MP44 Profile |
A12 | 5-10 cm | Brown (7.5YR4/4); sandy clay loam; weak structure; firm consistence (dry); highly calcareous; pH 8.7; sharp change to: | |
Subsoil | |||
B21 | 10-20 cm | Yellowish red (5YR5/8); light medium clay (sandy); weak-moderate coarse to medium polyhedral structure; very firm consistence (dry); few (5%) fine-earth carbonates and few (5%) calcareous nodules; macropores present; rough faced peds; very highly calcareous; pH 8.9; clear change to: | |
B22k | 20-30 cm | Yellowish red (5YR5/8); light medium clay (sandy); moderate coarse to medium polyhedral structure (rough-faced peds); very firm consistence (dry); fine-earth carbonates and semi-hard calcareous nodules common (10%); macropores present; pH 9.1; gradual change to: | |
B23k | 30-60 cm | Yellowish red (5YR5/8); light medium clay (sandy); moderate coarse to medium polyhedral structure; firm consistence (dry); very many (40%) fine-earth carbonates and semi-hard calcareous nodules; pH 9.5; gradual change to: | |
B24k | 60-100 cm | Yellowish red (5YR5/8) with pale yellow (2.5Y7/4) mottles (in patches); sandy clay loam; weak structure; very firm consistence (dry); many (30%) fine-earth carbonates and few (5%) manganese flecks; pH 10.2; clear change to: | |
B25k | 100-150 cm | Yellowish red (5YR5/8); medium clay; moderate coarse polyhedral structure; strong to very firm consistence (dry); many (30%) fine-earth carbonates nodules; pH 10.1. |
pH | Salinity Rating | |||
Surface (Ap horizon) | Strongly Alkaline | Low | Non-Sodic | None1 |
Subsoil (B21 horizon) | Strongly Alkaline | Low | Non-sodic | None |
Deeper subsoil (at 100-150 cm) | Extremely Alkaline | Low-Medium | Strongly Sodic | Strong |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | NaCI % | Exchangeable Cations | Boron (CaCl2) mg/kg | Field Capacity pF2.5 | Wilting Point pF4.2 | Coarse Sand (0.2 - 2 mm) | Fine Sand (0.02 - 0.2 mm) | Silt (0.002 -0.02 mm) | Clay (<0.002 mm) | |||
Ca | Mg | K | Na | |||||||||||||
meq/100g | ||||||||||||||||
Ap | 0-5 | 8.6 | 8.0 | 0.16 | 23 | 2.6 | 2.1 | 0.17 | 2.7 | 15 | 7 | 42 | 31 | 8.0 | 12 | |
A12 | 5-10 | 8.7 | 8.2 | 0.17 | 23 | 3.0 | 1.5 | 0.17 | 2.5 | 18 | 7 | 41 | 29 | 5.0 | 19 | |
B21 | 10-20 | 8.9 | 8.3 | 0.15 | 24 | 3.6 | 1.2 | 0.19 | 2.3 | 19 | 9 | 43 | 24 | 4.0 | 22 | |
B22k | 20-30 | 9.1 | 8.4 | 0.14 | 24 | 5.2 | 0.77 | 0.31 | 2.6 | 22 | 10 | 38 | 21 | 22 | 13 | |
B23k | 30-60 | 9.5 | 8.7 | 0.17 | 21 | 7.7 | 0.75 | 0.98 | 5.7 | 23 | 11 | 36 | 21 | 22 | 18 | |
B24k | 60-100 | 10.2 | 9.1 | 0.43 | <0.01 | 1.7 | 4.9 | 1.3 | 4.4 | |||||||
B25k | 100-150 | 10.1 | 9.6 | 0.62 | <0.01 | 2.2 | 7.9 | 2.1 | 8.8 |