Location: Jil Jil. | Group: Birchip Cropping Group. |
Australian Soil Classification: Epihypersodic, Pedal, Hypercalcic CALCAROSOL. | |
General Landscape Description: Level plain within the Culgoa Land System (Rowan and Downes, 1963). |
Site MP22 Landscape |
A1 | 0-10 cm | Dark brown (10YR3/3); clay loam; hardsetting and massive; firm consistence dry; pH 8.4; abrupt change to: | Site MP22 Soil Profile |
Subsoil | |||
B21 | 10-30 cm | Dark brown (10YR3/3); light medium clay; moderate coarse prismatic structure; very firm consistence dry; pH 8.8; wavy change to: | |
B22k | 30-110 cm | Reddish yellow (5YR6/6); light medium clay; moderate coarse prismatic, parting to medium angular blocky structure; contains very few (<2%) ironstone fragments and many (20-50%) fine earth carbonates; pH 9.8; gradual change to: | |
B23 | 110-125 cm | Reddish yellow (7.5YR6/6); medium heavy clay; moderate coarse prismatic, parting to medium to coarse blocky structure (smooth-faced peds); contains a few (2-10%) soft carbonates (and a band of manganese segregations in the 120 -125 cm zone); strong consistence dry; pH 8.6; gradual change to: | |
B31 | 125 cm+ | Brownish yellow (10YR6/8) with light brownish grey (10YR6/2) mottles; medium clay; strong coarse prismatic, parting to coarse angular blocky structure (smooth-faced peds); strong consistence dry; pH 4.9. |
pH | Salinity Rating | |||
Surface (A1 horizon) | moderately alkaline | low | non-sodic | none |
Subsoil (B21 horizon) | strongly alkaline | low | non-sodic | none |
Deeper subsoil (at 1 m) | extremely alkaline | Very high | strongly sodic | strong |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | NaCI % | Exchangeable Cations | Field Capacity pF 2.5 | Wilting Point pF 4.2 | Coarse Sand (0.2 - 2.0 mm) | Fine Sand (0.02 -0.2 mm) | Silt (0.002 -0.02 mm) | Clay (<0.002 mm) | |||
Ca | Mg | K | Na | ||||||||||||
meq/100g | |||||||||||||||
A1 | 0-10 | 8.4 | 7.6 | 0.18 | 20.7 | 4.2 | 3.1 | 0.2 | 29 | 16 | 32 | 25 | 4 | 29 | |
B21 | 10-30 | 8.8 | 8 | 0.17 | 5.6 | 13.4 | 1.3 | 1 | 34 | 20 | 36 | 22 | 2 | 34 | |
B22k | 30-110 | 9.8 | 8.7 | 0.53 | <0.05 | 5.6 | 13.4 | 1.2 | 6.7 | 41 | 26 | ||||
B23 | 110-125 | 8.6 | 8.1 | 1.47 | 0.25 | 1.8 | 13.1 | 1.5 | 13.9 | 46 | 27 | ||||
B31 | 125+ | 4.9 | 4.3 | 1.48 | .29 | 0.5 | 8 | .6 | 6.9 |