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Top Crop4

WLRA - soil pit Topcrop 4- landscape
Cropped gentle plains near Tarranyurk
    Site Code
Top Crop4
WLRA - soil pit Topcrop 4- profile
Endohypersodic, Pedal, Hypercalcic, Calcarosol

    Location

Tarranyurk, western Victoria.

    Landform

Undulating plain

    Geology

Quaternary Woorinen Formation: aeolian dune sand, calcareous clay

    Element

Plain

    Slope

0–2%

    Aspect

–
Horizon
Depth (cm)
Description

Ap

0–12

Very dark greyish brown (10YR3/2) clay loam (sandy); weak coarse to medium blocky structure; firm consistence (dry); moderately calcareous; pH 8.2; abrupt boundary to:

B21

12–40

Reddish yellow (7.5YR5/6) light clay; moderate structure; firm consistence (dry); few (5–10%) soft calcareous segregations; very highly calcareous; earthy ped-fabric, very many macropores; pH 8.4; clear boundary to:

B22k

40–70

Reddish yellow (7.5YR7/6) light clay; weakly structured; very firm consistence (dry); soft calcareous segregations common (20%); very highly calcareous; pH 9.1; gradual boundary to:

B23k

70–100

Reddish yellow (5YR6/6) medium heavy clay; medium very coarse prismatic, parting to medium to strong coarse to moderate blocky structure; strong consistence (dry); soft calcareous segregations (15%) common; very highly calcareous; pH 9.6; gradual boundary to:

B24

100–130

Reddish yellow (5YR6/6) with (10YR6/4) mottles; medium heavy clay; moderate very coarse prismatic, parting to moderate to strong coarse to medium blocky structure; strong consistence (dry); few (5%) soft calcareous segregations; very highly calcareous; manganese flecks; pH 9.7.
Management considerations
  • Gradual increase in texture (clay content) with depth down the soil profile
  • Fine earth carbonates common in deeper subsoil
Site
Top Crop4
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
Ap
0–12
8.2
7.8
0.35
<0.01
20
2.5
1.9
0.2
NA
NA
30.5
13.2
29.5
24.2
10.5
27.0
B21
12–40
8.4
8.0
0.45
0.01
17
4.2
1.3
0.2
NA
NA
32.5
14.2
26.8
20.8
7.5
25.5
B22k
40–70
9.1
8.4
0.19
NA
23
12
1.1
0.76
NA
NA
41.1
16.6
20.8
14.4
3.5
27.0
B23
70–100
9.6
8.8
0.51
0.01
2.7
16
1.6
5
NA
NA
45.2
21.4
16.7
16.1
4.5
41.0
B24
100–130
9.7
9.0
0.67
0.03
2.6
14
1.5
7.5
NA
NA
NA
NA
NA
NA
NA
NA
Note: NA=not assessed
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