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SFS7

Location: Mokanger

Ausralian Soil Classification: Eutrophic, Mottled-Subnatric, Grey SODOSOL


General Landscape Description: Victorian volcanic plains.
Site Description: Midslope, gently sloping.
Land Use: Raised bed canola cropping. Beds marked up after offset disk ploughing.
Geology: Basalt

Image: SFS7 landscape
SFS7 Landscape

Soil Profile Morphology:

Surface Soil
Image: SFS7 profile SFS7 Profile
A10-5 cmBrown (10YR4/3); fine sandy loam; apedal; weak surface seal; firm consistence dry; pH 6.9; abrupt change to:
A25-25/30 cmBrown (10YR5/3), conspicuously bleached (10YR7/2 dry) with rusty (10YR4/6) root channel mottling; sandy loam; apedal; weak to firm consistence dry; pH 5.6; clear and wavy change to:
Subsoil
B2125/30-50 cmDark grey (10YR4/1) with many (20-50%) fine yellowish brown (10YR5/8) mottles; medium heavy clay; contains very few round buckshot; coarse rough/irregular prismatic, parting to rough blocky/polyhedral structure; pH 6.3; gradual change to:
B2250-80 cmOlive brown (2.5Y4/3) with yellowish brown (10YR5/8) mottles; medium heavy clay; massive; consistence sticky; fine rounded buckshot; pH 6.5; gradual change to:
B2380 cm+Light olive brown (2.5Y5/3) with faint light yellowish brown (2.5Y6/4) mottles; medium heavy clay; massive; consistence sticky; few buckshot and some fine rounded quartz; pH 6.7.

Key Profile Features:
Soil Profile Characteristics:


pH
Salinity Rating
Surface
(A1 horizon)
Moderately Acid
Low
Non-Sodic
None
Subsoil
(B21 horizon)
Slightly Acid
Very Low
Sodic
None1
Deeper subsoil
(at 1 m)
Slightly Acid
Low
Strongly Sodic
Strong-Complete
1 Strong dispersion after remoulding

Image: SFS 7 graphs
Horizon
Horizon Depth
(cm)
pH
(water)
pH
(CaCl2)
EC
dS/m
NaCl
%
Organic Carbon
%
Nitrogen
%
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
Ap
5.6
4.9
0.15
1.3
0.11
3.5
1.4
0.24
0.38
A1
0-5
6.9
6.5
0.34
0.02
9.1
1.2
0.4
<0.1
A2
5-25/30
5.6
4.7
<0.05
0.77
0.49
0.07
0.11
B21
25/30-50
6.3
4.8
0.09
4.6
9.4
0.4
2
B22
50-80
6.5
5.1
0.14
4.5
12
0.44
3.5
B23
80+
6.7
5.7
0.23
4.2
12
0.36
4.6

Horizon
Horizon Depth
(cm)
Exchangeable Aluminium
mg/kg
Exchangeable Acidity
meq/100g
Field
Capacity
pF2.5
Wilting Point
pF4.2
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
-
<10
6
16.4
6.4
26
47
10
13
A1
0-5
4.7
19.8
10
24
45
11
13
A2
5-25/30
<10
1.9
12.6
2.2
30
50
13
9
B21
25/30-50
36
10
36.7
19.6
19
28
7
44
B22
50-80
10
42.4
22.3
15
26
7
50
B23
80+
7.1
38.6
19.8


Management Considerations:

Whole Profile Notes Profile Described By: Richard MacEwan (May 1999).
CC BY 4.0 AU

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The content is provided under the Creative Commons Attribution 4.0 Australia licence (CC BY 4.0 AU).

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