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ESAS9

Location: Mingay

Australian Soil Classification: Vertic, Mottled-Mesonatric, Grey SODOSOL

General Landscape Description: Gently undulating plain.
Site Description: Raised bed (2 metre wide) cropping paddock. Gilgai micro relief present.
Geology: Quaternary Basalt.

Photo: ESAS9 Landscape
ESAS9 Landscape


Soil Profile Morphology:

Surface Soil
A10-12 cm Dark greyish brown (10YR4/2); hardsetting and crusting in the surface; fine sandy clay loam; moderate coarse blocky, parting to medium blocky structure; significant amount of buckshot present; pH 5.9:
Photo: ESAS9 Profile
ESAS9 Profile

A212-20/40 cmBrown (10YR5/3) conspicuously bleached (10YR7/1d); fine sandy clay loam; fine polyhedral structure; pH 5.9; wavy change to:

NOTE: depth to subsoil varies due to gilgai.
Subsoil

B2120/40-50 cmDark grey (10YR4/1) with strong brown (7.5YR4/6) mottles; heavy clay; coarse blocky structure; vertic shrink/swell properties; pH 7.1:
B2250-75 cmYellowish brown (10YR5/4); heavy clay; lenticular structure; pH 7.8:
B2375-110 cmLight yellowish brown (2.5Y6/4); heavy clay; coarse lenticular, parting to fine lenticular structure; slickensides evident; pH 8.7.

Soil Profile Characteristics:


pH


Salinity Rating
Surface
(A1 horizon)
Moderately Acid
Low
Non-Sodic
None
Subsoil
(B21 horizon)
Slightly Alkaline
Low
Strongly Sodic
Strong1
Deeper subsoil
(at 80-120 cm)
Strongly Alkaline
Medium - High
Strongly Sodic
Strong2
1 Complete dispersion after remoulding. 2 Moderate dispersion after remoulding.

Image: ESAS9 Graphs
The surface is moderately acid. The subsoil is slightly alkaline and the deeper subsoil is strongly alkaline.The salinity rating in the surface is low. The subsoil has a medium to high salinity rating.The surface is non-sodic.
The subsoil is strongly sodic.
    The clay content increases significantly at the subsoil boundary.

Horizon
Horizon Depth
(cm)
pH
(water)
pH
(CaCl2)
EC
dS/m
NaCl
%
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
A1
0-12
5.9
5.4
0.17
7
2.9
0.38
0.73
A2
12-40
5.9
5.0
0.07
2.3
1.4
0.11
0.48
B21
40-50
7.1
5.9
0.22
6
8.9
0.41
5.3
B22
50-75
7.8
6.7
0.32
0.04
6.6
10
0.32
6.7
B23
75-110
8.7
8.3
1.3
0.2
7.9
14
0.37
11


Horizon
Horizon Depth
(cm)
Oxidisable Organic Carbon
%
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)
A1
0-12
2.2
<10
7.2
24.8
11.4
17
41
11
26
A2
12-40
<10
3.9
17.5
5.9
26
44
6
23
B21
40-50
39.9
20.5
5
33
12
46
B22
50-75
34.5
24.9
5
33
16
44
B23
75-110
46.0
24.3


Profile Described By: Mark Imhof (March 2008).
CC BY 4.0 AU

This page contains material sourced from the Victorian Resources Online (VRO) website, originally published by the State Government of Victoria.

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

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