Soil Profile Morphology:
NE48-50 Landscape
Surface Soil
A1 | 0-8 cm | Very dark greyish brown (10YR3/2); sandy loam; weak medium blocky, parting to weak fine granular structure; weak consistence (dry); slaking after 20 minutes; pH 5.2; very slight dispersion after remoulding: | NE49 Profile |
A21 | 8-30/45 cm | Brown (7.5YR4/4) with yellowish red (5YR5/6) mottles; sandy loam; weak to strong blocky structure; pH 5.3; firm to very firm consistence (dry): | |
A22 | 30-45/70 cm | Very pale brown (10YR7/3) and white (10YR8/1 dry) with strong brown (7.5YR5/6) mottles; sandy loam; apedal; very firm consistence (dry); pH 5.2; sharp change to: | |
Subsoil | |||
B21 | 70-100 cm | Light brownish grey (10YR6/2) with red (10R4/8) mottles; medium heavy clay; moderate medium to fine platy? structure; strong consistence (dry); small and medium quartz pebbles common (10-20%); pH 5.5; slakes to stable macro aggregates; pH 5.4: | |
B22 | 100-120+ cm | Greyish brown (10YR5/2) with weak red (10R5/2) mottles; weak to medium very coarse prismatic, parting to moderate to strong coarse to medium blocky, further parting to polyhedral structure; strong consistence (dry); slakes to stable macro aggregates; pH 5.1. |
Key Profile Features:
Horizon | pH | Salinity Rating | ||
Surface (A1 horizon) | Strongly Acid | |||
Subsoil (B2 horizon) | Strongly Acid | |||
Deeper subsoil (at100-120+ cm cm) | Strongly Acid |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | Organic Carbon G/100g | Exchangeable Cations | |||
Ca | Mg | K | Na | ||||||
meq/100g | |||||||||
A1 | 0-8 | 5.2 | 4.3 | <0.05 | 2.6 | 0.08 | 6.8 | 0.57 | 0.56 |
A21 | 8-30/45 | 5.3 | 4.3 | <0.05 | 1.5 | 0.82 | 0.71 | 0.14 | |
A22 | 30/45-70 | 5.2 | 4.0 | <0.05 | 0.24 | 0.43 | 0.14 | <0.05 | |
B21 | 70-100 | 5.4 | 4.1 | <0.05 | 0.18 | 0.84 | 0.12 | 0.09 | |
B22 | 100-120+ | 5.4 | 4.0 | <0.05 | <0.05 | 1.3 | 0.12 | 0.25 |
Horizon | Horizon Depth (cm) | Exchangeable Aluminium mg/kg | Exchangeable Acidity meq/100g | 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) |
A1 | 0-8 | 67 | 10 | 19.1 | 6.3 | 32 | 39 | 10 | 12 |
A21 | 8-30/45 | 86 | 5.5 | 15.8 | 5.3 | 31 | 43 | 10 | 15 |
A22 | 30/45-70 | 55 | 4.0 | 17.3 | 5.6 | 33 | 37 | 13 | 15 |
B21 | 70-100 | 190 | 9.5 | 24.2 | 14.2 | 32 | 18 | 8 | 39 |
B22 | 100-120+ | 300 | 11 | 28.3 | 15.4 |