SFS8

Location: Minhamite

Australian Soil Classification: Vertic (& Ferric), Mottled-Subnatric, Black SODOSOL

Great Soil Group: Solodic

General Landscape Description: Victorian volcanic plains.
Site Description: Low lying, gently sloping flat to convex.
Land Use: Canola cropping stubble. Raised bed with rounded bed edges.
Geology: Tertiary (Hanson Plain Sand / Moorabool Viaduct Formation). 

SFS8 Landscape

Surface Soil			SFS8 Profile
Ap	0-20 cm	Weak surface crust with fine buckshot (firm consistence); dark greyish brown (10YR4/2); loam; apedal to very weakly pedal; pH 5.5; abrupt change to:
A2c	20-40/70 cm	Light olive brown (2.5Y5/4) conspicuously bleached (10YR7/1 dry); fine gravel; pH 5.5; smooth and abrupt change to: NOTE: Insufficient fine earth to do texture. NOTE: Deeper A2 - fine sandy loam; non gravelly with very minor buckshot.
Subsoil
B21	40/70-80 cm	Very dark greyish brown (10YR3/2) with fine yellow and red (10YR8/8) mottles; medium heavy clay (clay is tough and dense); very fine polyhedral structure; very minor buckshot; fine roots throughout; pH 6.8; diffuse change to:
B22	80+ cm	Olive brown (2.5Y4/4) with light olive brown (2.5Y5/6) mottles; medium heavy clay (clay is tough and dense); fine polyhedral and very fine prismatic structure; clay and organic matter coatings on ped faces; small (110 mm) slickensides at base of pit; fine roots throughout; pH 7.7.

• Strong texture contrast between surface (A) horizon and subsoil (B21) horizon.
• Conspicuously bleached subsurface (A) horizon with ferruginous nodules (‘buckshot’).
• The fine B horizon structure has been penetrated by crop roots.

Horizon	Horizon Depth (cm)	pH (water)	pH (CaCl2)	EC dS/m	NaCl %	Organic Carbon %	Total Nitrogen %	Exchangeable Aluminium ppm	Exchangeable Acididty meq/100g	Exchangeable Cations				Coarse Sand (0.2-2.0 mm) %	Fine Sand (0.02-0.2 mm) %	Silt (0.002-0.02 mm) %	Clay (<0.002 mm) %	Field Capacity % w/w	Wilting Point % w/w
										Ca	Mg	K	Na
										meq/100g
Ap	0-20	5.5	5	0.32	0.02	3.1	0.3	<10	11	6	1.3	0.2	<0.1	5	40	34	17	36.3	12.7
A2	20-40/70	5.5	4.5	0.05				22	6.3	1.3	1.4	0.07	0.23	5	46	33	15	27.5	5.8
B21	40/70-80	6.8	5.5	0.12					12	4.1	12	0.4	2.9	3	12	8	75	49.1	29.9
B22	80+	7.7	6.6	0.23					8.1	4.8	13	0.37	4.3	2	13	7	76	52.6	30.8

• Plant available water capacity (PAWC) is considered to be medium (estimated at 102 mm) in the upper 100 cm of this soil profile.