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MOP6

Location: TuerongAustralian Soil Classification: Eutrophic, Mottled-Subnatric, Brown SODOSOL (thick surface horizons)
Land Use: Vineyard

Soil Profile Morphology:

Surface Soil

A10-12 cmDark grey (10YR 4/1); very fine sandy loam; very weak (moist) consistence; pH 6.7:MOP6 profile
MOP6 Profile
A2112-22 cmBrown (10YR 5/3); very fine sandy clay loam; weak (moist) consistence; pH 5.6:
A2222-35 cmBrownish yellow (10YR 6/6); conspicuously bleached; fine sandy clay loam; very firm (dry) consistence; few ferromanganiferous nodules; pH 5.6; sharp change to:
Subsoil
B2135-50 cmYellowish brown (10YR 5/4) with yellowish brown (10YR 5/6) mottles; medium clay; weak to moderate coarse sub-angular blocky structure parting to moderate to strong coarse to medium sub-angular blocky structure; pH 5.7:
B2250-80 cmLight yellowish brown (2.5Y 6/3) with red (2.5YR 4/8), yellowish brown (10YR 5/6) and light brownish grey (10YR 6/2) mottles; medium clay; very few ferruginous nodules; pH 5.5:
B2380-120 cmLight yellowish brown (2.5Y 6/3) with grey (10YR 6/1), yellowish brown (10YR 5/6) and red (2.5YR 4/6) mottles; medium heavy clay; strong coarse to very fine polyhedral structure (shiny ped faces); pH 5.5:

Key Profile Features:

  • Strong texture contrast between surface (A) horizons and subsoil (B2) horizon.

Soil Profile Characteristics:

pH
Salinity Rating
Surface
(A1 horizon)
Slightly Acid
Low
Non-Sodic
Subsoil
(B21 horizon)
Moderately Acid
Low
Marginally-Sodic
Deeper subsoil
(at 80-120 cm)
Strongly Acid
Low
Marginally-Sodic
1complete dispersion after remoulding


MOP6 graphs

Horizon
Horizon Depth
pH (water)
pH CaCl2
EC
1:5
Ex Ac
meq/100g
Exchangeable Cations
Ca
Mg
K
Na
Meq/100g
A1
0-12
6.7
6.1
0.10
6.4
7.9
2.2
0.15
0.31
A21
12-22
5.6
5.0
0.12
1.2
1.3
<0.05
0.25
A22
22-35
5.6
4.9
0.08
0.94
2.0
<0.05
0.3
B21
35-50
5.7
4.9
0.11
9.2
1.6
0.94
0.14
0.82
B22
50-80
5.5
5.0
0.14
11
1.2
1.2
0.19
1.1
B23
80-120
5.5
4.9
0.14
0.5
0.5
0.09
1.4

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