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WLRA135

WLRA - soil pit WLRA135- landscape
Canola stubble, looking north

    Site Code
WLRA135
WLRA - soil pit WLRA135- profile
Epicalcareous-Epihypersodic, Self-mulching, Black Vertosool

    Location

Cnr Henty Highway and Minyip Dimboola Road, Kewell North, western Victoria

    Landform

Undulating plain

    Geology

Quaternary Woorinen Formation:
aeolian dune sand, calcareous clay

    Element

Plain

    Slope
2%

    Aspect
East-north-east
Horizon
Depth (cm)
Description

A11

0–5

Dark grey (10YR4/1) light medium clay; strong very fine to fine granular structure; rough ped-fabric; loose dry consistence; sharp and wavy boundary to:

A12

5–20

Dark grey (10YR4/1) medium clay; strong coarse platy, parting to moderate angular blocky structure; rough ped-fabric; very firm dry consistence; common very fine roots; clear and wavy boundary to:

B21

20–60

Very dark greyish brown (10YR3/2) medium clay; strong coarse to very coarse prismatic, parting to moderate very coarse to coarse angular blocky structure; rough and smooth ped-fabric; strong dry consistence; very few medium calcareous soft segregation's; many distinct and prominent clay skins and slickensides; common very fine roots; gradual and wavy boundary to:

B22

60–95

Very dark grey (10YR3/1) medium clay; strong coarse to very coarse prismatic, parting to moderate very coarse to coarse angular blocky structure; rough and smooth ped-fabric; strong moderately moist consistence; few coarse calcareous soft segregation's; many distinct and prominent clay skins and slickensides; common very fine roots; clear and wavy boundary to:

B23k

95–110

Very dark grey (2.5Y3/1) medium clay; strong coarse prismatic parting to coarse angular blocky structure; smooth ped-fabric; very firm moderately moist consistence; few gypseous veins with common coarse calcareous soft segregation's; many distinct and prominent clay skins and slickensides; common very fine roots; clear and wavy boundary to:

B24

110–150

Light olive brown (10YR5/3) light clay; strong coarse to very coarse prismatic, parting to moderate very coarse to coarse angular blocky structure; smooth ped-fabric; strong moderately moist consistence; very few coarse calcareous soft segregation's; many prominent clay skins and slickensides; few very fine roots.
Management considerations
  • Cracking clay soil
  • Alkaline subsoil
  • Friable (self mulching) surface soil but coarser structured subsurface soil, possible compaction
  • Alkaline subsoil, calcareous and strongly sodic in subsoil
  • Boron levels higher in subsoil

Site
WLRA135
Sample depth cm
pH
EC
dS/m
NaCl
%
Ex Ca
cmol-/kg
Ex Mg
cmol-/kg
Ex K
cmol-/kg
Ex Na
cmol-/kg
Ex Al
mg/kg
Ex acidity
cmol-/kg
FC
-30okPa
PWP
-1500okPa
KS
%
FS
%
Z
%
C
%
Horizon
H2O
CaCl2
A11
0-5
7.8
7.4
0.24
NA
25
5.1
3.3
0.53
3.4
NA
33.6
19
20.8
16.7
13.8
43
A12
5-18
8.4
7.8
0.24
NA
30
5.7
1.1
1.2
3.4
NA
35.1
20.3
24.3
17.1
9
44
B21
18-60
9
8.1
0.31
0.01
19
9.4
0.9
5.4
6.4
47
45.3
21
23.4
13.9
8.8
48
B22
60-95
9.2
8.4
0.62
0.04
14
8.8
1.2
8.8
16
130
45.5
20.9
27.4
14.8
7.5
43.5
B23
95-110
9.2
8.4
0.8
0.05
13
8.5
1.2
9.8
17
200
49.2
23.6
24.4
12.8
6.5
43.5
B24
110-150
9.1
8.4
1.1
0.08
13
10
1.4
12
18
310
45
21.7
20
12.7
6.5
50
Note: NA=not assessed
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