WLRA135

Canola stubble, looking north		Site Code	WLRA135	Epicalcareous-Epihypersodic, Self-mulching, Black VERTOSOL
		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 consistence, dry; pH 7.8; sharp and wavy change to:
A12	5–20	Dark grey (10YR4/1); medium clay; strong coarse platy, parting to moderate angular blocky structure; rough ped fabric; very firm consistence, dry; common very fine roots; pH 8.4; clear and wavy change 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 consistence, dry; very few medium calcareous soft segregations present; many distinct and prominent clay skins and slickensides evident; contains common very fine roots; pH 9.0; gradual and wavy change 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 consistence, moderately moist; contains a few coarse calcareous soft segregations; many distinct and prominent clay skins and slickensides evident; common very fine roots present; pH 9.2; clear and wavy change 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 consistence moderately moist; contains a few gypseous veins with common coarse calcareous soft segregations; many distinct and prominent clay skins and slickensides evident; common very fine roots present; pH 9.2; clear and wavy change 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 consistence, moderately moist; contains very few coarse calcareous soft segregations; many prominent clay skins and slickensides evident; few very fine roots present; pH 9.1.
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.

Horizon	Depth (cm)	pH (water)	pH (CaCl₂)	EC dS/m	NaCl %	Exchangeable Cations cmol-/kg				Field Capacity (pF2.5)	Wilting Point (pF4.2)	Coarse Sand %	Fine Sand %	Silt %	Clay %
Horizon	Depth (cm)	pH (water)	pH (CaCl₂)	EC dS/m	NaCl %	Ca	Mg	K	Na	Field Capacity (pF2.5)	Wilting Point (pF4.2)	Coarse Sand %	Fine Sand %	Silt %	Clay %
A11	0-5	7.8	7.4	0.24		25	5.1	3.3	0.53	33.6	19	20.8	16.7	13.8	43
A12	5-20	8.4	7.8	0.24		30	5.7	1.1	1.2	35.1	20.3	24.3	17.1	9	44
B21	20-60	9	8.1	0.31	0.01	19	9.4	0.9	5.4	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	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	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	45	21.7	20	12.7	6.5	50

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