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NECRC2

Location: ByawathaAustralian Soil Classification: Bleached, Eutrophic, Red DERMOSOL
General Landscape Description: Grazing paddock.Site Description: Lower slope of gently undulating rise below granite hill.
Geology: Devonian Granite

NE - CRC 2 - landscape
NECRC2 landscape


Soil Profile Morphology:

Surface Soil

A1
0-4 cm
Dark brown (7.5YR3/2); sandy loam; weak to moderate coarse blocky structure; firm to very firm consistence (dry); very few (1-2%) small (2-4 mm) quartz fragments; some compaction features; pH 5.4; abrupt change to:
NE - CRC 2 - profile
NECRC2 profile
A12
4-16 cm
Dark brown (7.5YR3/2); light sandy clay loam; weak coarse blocky structure; firm to very firm consistence (dry); pH 4.9; clear change to:
A2e
16-30 cm
Brown (7.5YR4/4), conspicuously bleached (5YR7/2 dry); light sandy clay loam; weak coarse angular blocky structure; weak consistence (slightly moist); very few (~1%) small (2-4 mm) quartz fragments, macropores present; pH 5.1; clear change to:
Subsoil
B11
30-40 cm
Yellowish red (5YR5/6); sandy clay loam; weak sub-angular blocky structure; weak consistence (slightly moist); pH 5.9; gradual change to:
B12
40-65 cm
Yellowish red (5YR4/6); sandy clay loam; weak medium subangular blocky structure; weak to firm consistence (slightly moist); few (~5%) small (2-6 mm) subangular quartz fragments; pH 6.5; gradual change to:
B21
65-80 cm
Dark red (2.5YR4/6); sandy clay; weak-moderate medium to fine polyhedral structure; weak to firm consistence (slightly moist); pH 6.6; gradual change to:
B22
80-100 cm
Sandy clay; strong-moderate medium to fine subangular blocky; strong consistence (slightly moist); cutans on ped faces; pH 6.9; gradual change to:
B23
100-120 cm
Sandy clay; strong consistence (slightly moist); few (~5%) small (2-8 mm) subangular quartz fragments; pH 7.0.

Key Profile Features:
Soil Profile Characteristics:


Horizon
pH
Salinity Rating
Surface
(A1 horizon)
Strongly Acid
Very Low
Non-Sodic
None
Subsoil
(B21 horizon)
Slightly Acid
Very Low
Non-Sodic
None
Deeper subsoil
(at 100-120 cm)
Neutral
Very Low
Non-Sodic
None

NE - CRC 2 - graphs
Horizon
Horizon Depth
(cm)
pH
(water)
pH
(CaCl2)
EC 1:5
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
A1
0-4
5.4
4.9
0.15
5.6
0.70
0.76
0.07
A12
4-16
4.9
4.1
<0.05
1.1
0.15
0.43
0.07
A2
16-30
6.1
4.3
<0.05
1.5
0.23
0.35
0.06
B11
30-40
5.9
5.1
<0.05
2.9
0.45
0.25
0.08
B12
40-65
6.5
5.5
<0.05
4.2
0.61
0.25
0.10
B21
65-80
6.6
5.8
<0.05
4.2
0.77
0.29
0.08
B22
80-100
6.9
6.1
<0.05
6.0
1.5
0.54
0.08
B23
100-120
7.0
6.1
<0.05
5.5
1.6
0.58
0.09

Horizon
Horizon Depth
(cm)
Exchangeable Aluminium
(mg/kg)
Exchangeable Acidity
(meq/100g)
Field Capacity
pF 2.5
Wilting Point
pF 4.2
Coarse Sand
(0.2-2.0 mm)
Fine Sand
(0.02-0.2 mm)
Silt
(0.002-0.02 mm)
Clay
(<0.002 mm)
A1
0-4
<10
7.1
32.6
8.1
28
29
26
10
A12
4-16
120
6.9
24.9
5.4
26
34
28
10
A2
16-30
58
2.7
19.6
5.2
25
35
24
11
B11
30-40
<10
3.7
19.7
6.3
22
34
27
15
B12
40-65
<10
2.5
19.3
7.2
25
30
25
17
B21
65-80
1.8
19.0
7.9
29
27
24
18
B22
80-100
3.4
21.0
10.7
28
23
22
27
B23
100-120
2.8

Management Considerations:
Notes: Soil profile described by Mark Imhof and Will Gates (December 2004)
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