Australian Soil Classification: Brown or Black SODOSOL or CHROMOSOL
General Landscape Description: Dissected gently undulating volcanic plain
Site Description: Drainage depression (4%)
Vegetation: Pasture
Geology: Quaternary Basalt
Soil Profile Morphology:
Surface Soil
A11 | 0-15 cm | Black (2.5Y2.5/1); common fine faint yellowish brown (10YR5/8) (root) mottle; clay loam; moderate medium parting to strong finesubangular blocky structure;rough ped fabric; firm consistence, dry; very few fine gravely ferromanganiferous concretions; pH 5.0; gradual change to: | |
A12 | 15-35 cm | Very dark grey (10YR3/1); medium heavy clay; moderate medium parting to fine polyhedral structure; rough ped fabric; weak consistence, dry; many fine gravely ferromanganiferous nodules; pH 6.5; gradual change to: | |
Subsoil | |||
B21 | 35-55 cm | Very dark greyish brown (10YR3/2); common coarse faint brownish yellow (10YR6/6) mottles; medium clay; moderate medium prismatic parting to fine prismatic structure; smooth ped fabric; firm consistence, slightly moist; very few fine gravely ferromanganiferous nodules; very few fine gravely subrounded basalt; pH 6.0; gradual change to: | |
B22 | 55-80 cm | Dark greyish brown (10YR4/2); many coarse distinct yellowish brown (10YR5/6) mottles; heavy clay; moderate medium prismatic parting to strong fine angular blocky structure; smooth ped fabric; firm consistence, slightly moist; very few fine gravely ferromanganiferous nodules; very few fine gravely subrounded basalt; pH 6.5; diffuse change to: | |
B23 | 80-110 cm | Greyish brown (10YR5/2); many coarse prominent yellowish brown (10YR5/6) and reddish brown (5YR4/6) mottles; heavy clay; weak coarse lenticular and prismatic parting to medium prismatic and subangular blocky structure; smooth ped fabric; very firm consistence, moist; very few fine gravely ferromanganiferous nodules; very few fine gravely subrounded basalt; pH 7.5 | |
Depth (cm) | pH (water) | pH (CaCl2) | EC dS/m | Exchangeable Cations | Total Carbon % | Total Nitrogen % | Organic Matter % | Available Aluminium mg/kg | Available Potassium (Skene K) mg/kg | Phosphorous (Olsen P) mg/kg | Available Sulphur mg/kg | Phosphorous Buffering Index | |||
Ca | Mg | K | Na | ||||||||||||
meq/100g | |||||||||||||||
0-10 | 5.3 | 4.8 | 0.25 | 7.6 | 3.8 | 0.95 | 0.99 | 7.4 | 0.57 | 14 | <10 | 290 | 21 | 36 | 260 |
Depth (cm) | Bulk Density kg/L | Volumetric Water | Dispersion | Slaking | ||||||
At Saturation pF0 mL/100mL | Near Saturation pF1.0 mL/100mL | Field Capacity pF2.0 mL/100mL | Wilting Point pF4.2 mL/100mL | Dry | Remoulded | |||||
2 Hour | 20 Hour | 2 Hour | 20 Hour | |||||||
0-10 | 0.87 | 66.4 | 61.1 | 50.0 | 18.5 | Nil | Nil | Nil | Slight | Water Stable |