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VIT1

Location: Rutherglen
Aust. Soil Class: Sodic, Mesotrophic, Brown DERMOSOL

VIT1 landscape
VIT1 Landscape


Soil Profile Morphology:

Surface Soil

Ap
0-15 cm
Brown (7.5YR4/3); fine sandy clay loam; weak coarse blocky structure; hard-setting surface condition; firm to very firm consistence (dry); many macropores present; pH 5.4; clear change to:
VIT1 profile
Vit1 profile
Subsoil
B1
15-30 cm
Strong brown (7.5YR4/6); light clay (fine sandy); weak to moderate subangular blocky structure; many fine to medium macropores; firm consistence (slightly moist); pH 6.0; gradual change to:
B21
30-50 cm
Strong brown (7.5YR5/6) with few (5%) dark red (2.5YR4/6) mottles; light medium clay (fine sandy); moderate – strong, medium to fine polyhedral structure; weak consistence (moist); few (5%) medium sized (5 mm) ferromanganiferous nodules; roots common to 60 cm; pH 6.1; gradual change to:
B22
50-70 cm
Brownish yellow (10YR6/6) with many (40%) strong brown (7.5YR5/6) mottles; medium clay; moderate - strong, medium to fine subangular blocky structure; weak consistence (moist); few (5%) medium (5-10 mm) ferromanganiferous and clay nodules; and few (5%) manganese stains; pH 6.6; gradual change to:
B23
70-95 cm
Light yellowish brown (2.5Y6/4) with many (30%) strong brown (7.5YR4/6) mottles; medium heavy clay; moderate – strong, medium to fine subangular blocky structure; firm consistence (moist); manganese staining common; few (5%) ferromanganiferous and clay nodules; roots to 80 cm; pH 7.6; gradual change to:
B24
95-110+ cm
Light olive brown (2.5Y5/4) with many (30%) reddish yellow (7.5YR6/6) mottles; strong – medium to fine subangular blocky; firm consistence (moist); few (2.5%) fine manganese flecks; pH 8.9.
Key Profile Features:
Soil Profile Characteristics:

pH
Salinity Rating
Sodicity
Dispersion
Surface
(Ap horizon)
Strongly Acid
Very Low
Non-Sodic
None
Subsoil
(B21 horizon)
Slightly Acid
Very Low
Non-Sodic
None
Deeper subsoil
(at 95-110+ cm)
Strongly Alkaline
Very Low
Strongly Sodic
Strong

VIT1 graphs
Horizon
Horizon Depth
(cm)
pH
(water)
pH
(CaCl2)
EC 1:5
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
Ap
0-15
5.4
4.7
0.08
3.2
0.92
0.82
0.13
B1
15-30
6.0
5.2
0.06
3.1
1.7
0.37
0.26
B21
30-50
6.1
5.1
<0.05
2.3
2.2
0.28
0.38
B22
50-70
6.6
5.2
0.07
2.0
4.4
0.43
1.4
B23
70-95
7.6
6.2
0.09
2.6
6.4
0.59
2.8
B24
95-110+
8.9
7.9
0.14
3.0
7.3
0.62
3.5

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)
Ap
0-15
 <10
6.0
24
6.3
10
50
18
16
B1
15-30
 <10
4.6
23.3
8.4
7
43
16
31
B21
30-50
 <10
3.6
24.7
9.1
7
42
14
35
B22
50-70
5.1
25.8
12.4
7
34
15
41
B23
70-95
29.1
16.3
5
31
17
48
B24
95-110+
30.4
15.4

Management Considerations:

Subsoil (B) Horizon Notes
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