EGS261

Location: Bruthen

Australian Soil Classification: Melacic, Eutrophic, Brown DERMOSOL

Map Unit: Tambo (Component 1)
Previous Site Name: EG261

General Landscape Description: Rolling to steep low hills.
Site Description: Upper slope
Land Use: Grazing on annual pasture
Native Vegetation: Valley dry forest
Geology: Ordovician sediments



Soil Profile Morphology:

Surface Soil

A11	0 – 12 cm	Dark yellowish brown; fine sandy clay loam; few (10%) small angular pebbles (<20 mm); clear and wavy change to:	EG261 Profile
A12	12 – 35 cm	Yellowish brown; fine sandy clay loam (heavy); common (10-20%) angular pebbles (<60 mm) increasing with depth; gradual change to:
A13	35 – 60 cm	Light brown; fine sandy clay loam (heavy); many (20-50%) angular pebbles and cobbles (<200 mm) increasing in size and amounts with depth; passing to:
Subsoil
R	60+ cm	Weak rock becoming stronger with depth.

• Uniform textures to at least 60 cm.

Horizon	Horizon Depth (cm)	pH (water)	pH CaCl2	CE dS/m	Organic Carbon %	Total Nitrogen %	Exch. Al	Exch. 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 cap. % w/w	Wilt. point % w/w
									Ca	Mg	K	Na
									meq/100g
A11	0-12	5.4	4.7	0.07	5.7	0.35	71	17	7.1	1.8	0.4	<0.1	16	30	26	17	37.6	12.1
A12	12-35	5.2	4.4	<0.05			200	13	1.4	1.3	0.3	<0.1	15	32	31	18	27.1	8.6
A13	35-60	5.3	4.4	<0.05			190	9.1	0.9	1.8	0.2	<0.1	17	33	28	21	22.1	8.3

• The brown colours throughout and lack of texture contrast indicate the profile is well drained internally.
• The soil texture is almost uniform throughout.

• The soil has a high organic matter content conferring good structural stability.
• The nutrient holding capacity of the soil is moderate (based on the sum of exchangeable cations).
• The potassium levels are marginal but the soil is unlikely to show a response to potassium fertilisers at this stage.

• The presence of increasing amounts of rock in the subsoil is likely to restrict root development.