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SWSL328

Site code
      SWSL328
Location
      Scotts Creek (Bucks Road), Cobden district, south-west Victoria
Landform
      Gently undulating plains
Geology
      Neogene Hanson Plain Sand: fluvial gravel, sand, silt
Element
      Crest

Soil Profile Morphology:
Horizon

Depth (cm)

Description

A1
0–15 Black (N2/0); loamy sand; apedal massive structure; weak consistence (dry); sharp boundary to:

A2
15–55Very dark gray (10YR3/1), gray (10YR6/1 dry); sandy loam; fragipan or earthy pan; sharp boundary to:

B21
55+Yellowish brown (10YR5/4) with brown (10YR5/8) mottles; sandy clay; apedal massive structure; clear boundary to:

Bhs
0–80Dark reddish brown (5YR3/3); sandy loam; organic concretions.

ASC: ?, Homosesquic, ? PODOSOL

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

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
0–15
4.7
N/R
0.07
N/R
N/R
N/R
N/R
N/R
N/R
N/R
A2
15–55
4.6
N/R
0.02
N/R
N/R
N/R
N/R
N/R
N/R
N/R
B21
55+
5.3
N/R
0.12
N/R
0.44
1.2
0.22
0.94
N/R
13
BHS
0–80
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R

Sample
depth
FC
(-10kPa)
PWP
(-1500kPa)
KS
FS
Z
C
Org C
Bulk density
Horizon
cm
%
%
%
%
%
%
%
t m-3
A1
0–15 N/R N/R N/RN/R N/R N/R N/R N/R
A2
15–55 N/R N/R N/RN/R N/R N/R N/R N/R
B21
55+ N/R N/R N/RN/R N/R N/R N/R N/R
BHS
0–80 N/R N/R N/RN/R N/R N/R N/R N/R

Management Considerations:

This soil type has a sandy surface structure and generally sandy profile with an increase in clay at the B horizon providing a texture contrast. Hardsetting surface soil, strongly acidic topsoils and a fragipan forming a distinct separation between the A and B horizons are other key features of this profile. The subsoils are mottled and indicate periodic waterlogging.

Management options may be to increase organic matter while the maintenance of a vegetative cover is important. The application of lime is the main method of increasing the pH, reducing toxic levels of nutrients to plants while increasing the availability of nutrients such as calcium, potassium and molybdenum.
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