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MM237

Site code
      MM237
Location
      Mannibadar (Lismore Pittong Road), Linton district, south-west Victoria
Landform
      Undulating low hills
Geology
      Devonian Tiac Granodiorite: intrusive biotite granodiorite, coarse grained
Element
      Lower slope

Profile morphology
Horizon

Depth (cm)

Description

A1
0–30
Very dark greyish brown (10YR3/2); loam; weak consistence (dry); clear boundary to:

A2
30–45
Pale brown (10YR6/3), conspicuously bleached, light grey (10YR7/2 dry); sandy clay loam; sharp boundary to:

B21
45–90
Yellowish brown (10YR5/6) with brown (2.5YR4/6) mottles; heavy clay; strong coarse blocky structure; very firm consistence (moderately moist); clear boundary to:

B22
90–140
Grey (10YR6/1) with brown (2.5YR4/6) mottles; heavy clay; very firm consistence (moist); clear boundary to:

B23
140+
Light brownish grey (10YR6/2) with brown (10YR5/8) mottles; heavy clay; firm consistence (moist).

ASC: Eutrophic, Mottled-Mesonatric, Brown Sodosol

Analytical data Source: Government of Victoria, State Chemistry Laboratory.

Site MM237
Sample
depth
pH
EC
NaCl
Ex Ca
Ex Mg
Ex K
Ex Na
Ex Al
Ex acidity
Horizon
cm
H2O
CaCl2
dS/m
%
cmolc/kg
cmolc/kg
cmolc/kg
cmolc/kg
mg/kg
cmolc/kg
A1
0–30
5.7
N/R
0.08
N/R
1.7
1.7
0.2
0.4
N/R
10.5
A2
30–45
5.9
N/R
0.05
N/R
0.8
0.8
0.1
0.3
N/R
4.3
B21
45–90
6.8
N/R
0.23
0.04
2.5
2.5
0.4
4
N/R
9.2
B22
90–140
6.7
N/R
0.35
0.07
N/R
N/R
N/R
N/R
N/R
7.4
B23
140+
6.5
N/R
0.35
0.07
1.5
1.5
0.2
3.5
N/R
6

Site MM237
Sample
depth
FC
(-10kPa)
PWP
(-1500kPa)
KS
FS
Z
C
Org C
Bulk density
Horizon
cm
%
%
%
%
%
%
%
t m-3
A1
0–30
22.3
10.8
38
23
16
17
3.1
1.37
A2
30–45
15.3
4.1
50
24
14
9
N/R
1.23
B21
45–90
45.7
27.6
11
9
4
75
N/R
N/R
B22
90–140
N/R
N/R
16
15
8
57
N/R
N/R
B23
140+
N/R
N/R
35
13
8
41
N/R
N/R

Management considerations
Texture contrast soil with a bleached A2 horizon indicates restricted drainage and poor soil structure. The presence of very sodic subsoils may result in poor soil structure and dispersion whilst the presence of mottles indicates periodic waterlogging. The application of gypsum may be used to counter the effect of sodicity, while improved drainage methods would reduce the waterlogging. Penetration by deep rooted crops is also useful as is minimum tillage which avoids bringing the sodic, dispersive material to the surface.
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