Location: Buckland Valley | Australian Soil Classification: Acidic, Mesotrophic, Red DERMOSOL |
General Landscape Description: Gentle rise – 2nd terrace level of Buckland River. | Site Description: Vineyard |
VIT4 landscape |
A11 | 0-12 cm | Dark brown (7.5YR3/3); fine sandy clay loam; moderate - strong medium to fine subangular blocky structure; very firm consistence (dry); pH 5.8; clear change to: | VIT4 profile |
A12 | 12-20 cm | Dark Brown (7.5YR3/4) and light brown (7.5YR6/4 dry); fine sandy clay loam; strong medium to fine subangular blocky structure; firm consistence (slightly moist); many large macropores present; some (5%) fine dark manganese staining; pH 5.4; clear change to: | |
Subsoil | |||
B21 | 20-40 cm | Dark red (2.5YR4/6); light medium clay; strong coarse to medium subangular blocky, parting to moderate to strong fine polyhedral structure; firm consistence (moist); many macropores present; pH 5.2; gradual change to”: | |
B22 | 40-70 cm | Dark red (2.5YR4/8); medium clay; moderate to strong coarse medium subangular blocky structure; weak to firm consistence (moist); few (5%) rounded quartz pebbles; many macropores present; pH 5.0; gradual change to: | |
B3 | 70-100 cm | Dusky red (2.5YR3/4); fine sandy clay loam; moderate – strong, medium to fine subangular blocky structure; weak to firm consistence (moist); pH 5.1. |
Horizon | pH | Salinity Rating | ||
Surface (A11 horizon) | Moderately Acid | Very Low | Non-Sodic | None |
Subsoil (B21 horizon) | Strongly Acid | Very Low | Non-Sodic | None |
Deeper subsoil (at 70-100 cm) | Strongly Acid | Very Low | Non-Sodic | None |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | Exchangeable Cations | |||
Ca | Mg | K | Na | |||||
meq/100g | ||||||||
A11 | 0-12 | 5.8 | 5.2 | 0.09 | 7.6 | 2.1 | 1.9 | 0.09 |
A12 | 12-20 | 5.4 | 4.7 | 0.06 | 5.0 | 1.0 | 1.3 | 0.09 |
B21 | 20-40 | 5.2 | 4.3 | 0.05 | 3.7 | 1.1 | 1.4 | 0.07 |
B22 | 40-70 | 5.0 | 4.2 | 0.06 | 2.0 | 0.67 | 1.6 | 0.10 |
B3 | 70-100 | 5.1 | 4.3 | 0.06 | 3.0 | 0.55 | 1.9 | 0.08 |
Horizon | Horizon Depth (cm) | Exchangeable Aluminium mg/kg | Exchangeable Acidity mg/kg | 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) |
A11 | 0-12 | <10 | 11 | 34.3 | 13.3 | 10 | 28 | 30 | 26 |
A12 | 12-20 | 59 | 11 | 32.6 | 12.7 | 8 | 22 | 35 | 30 |
B21 | 20-40 | 260 | 10 | 33.6 | 15.9 | 2 | 17 | 34 | 46 |
B22 | 40-70 | 420 | 9.6 | 34.9 | 16.6 | 2 | 20 | 28 | 46 |
B3 | 70-100 | 420 | 12 | 34.5 | 18.6 | 3 | 20 | 23 | 52 |