Profile Number 46

Laboratory number:	0973	Profile Description
Site number:	491	A₁	0-12 cm	Dark brown (7.5YR 3/2) sandy loam; weak crumb structure; rough-ped fabric; hard when dry; abundant roots; pH 5.7; clear boundary
Classification:	Northcote (1979) – Db2.21 Stace et al (1972) – Brown Podzolic soil	A₂₁	12-36 cm	Dark brown (7.5YR 3/2) gritty sandy loam; apedal; earthy fabric; hard when dry; about 30% of fine quartz gravel up to 3 mm; common roots; pH 6.0; clear boundary
Location:	Omeo 8423, grid ref: 617854 12 km SE of Omeo	A₂₂	36-52 cm	Strong brown (7.5YR 5/6) gritty sandy loam; apedal; earthy fabric; hard when dry; 30% of fine quartz gravel up to 3 mm; common roots; pH 5.5; clear boundary
Land system, component:	Dargo, 1	B₂	52-70 cm	Strong brown (7.5YR 4/6) medium clay becoming yellowish red (5YR 5/6) at depth; abundant faint red (<5 mm) mottles; moderate (10 mm) angular blocky structure; smooth-ped fabric; very hard when dry; few roots; pH 5.5; gradual boundary
Topography:	Upper mid-slope of hill, SW aspect, 15% gradient	C	70 - 83+ cm	Sandy clay; apedal; rough-ped fabric; very hard when dry; biotite, plagioclase feldspar, quartz and small amount of muscovite are clearly visible; pH 5.0
Elevation:	440 m
Drainage:	Imperfect
Parent material:	Palaeozoic granite
Vegetation:	Cleared; grassland with Themeda australis, Cynosurus echinatus and Dactylis glomerata with a few remaining Eucalyptus albens and E. viminalis

LABORATORY ANALYSES 973
Horizon	Sample Depth cm	Lab. texture	Particle size distribution					Atterberg limits				1:5 soil water suspension			Clay mineralogy by x-ray diffraction
Horizon	Sample Depth cm	Lab. texture	Gravel %	Coarse sand % f.e.	fine sand % f.e.	Silt % f.e.	Clay % f.e.	liquid limit %	plastic limit %	plasticity index %	linear shrinkage %	pH	EC 25°C uS/cm	Cl- %	Depth cm	Composition %
Al	0 - 10	L	11	34	36	15	12					6.2	45	0.005
A21	20 - 30	LS	15	38	36	18	7					6.5	14	0.002
A22	36 - 52	L	20	38	31	14	16					6.7	17	0.002
B2	52 - 60	C	16	16	16	5	63	75	26	49	15	6.3	26	0.004
C	70 - 83	C	21	28	25	10	34					6.4	17	0.002

Horizon	Sample Depth cm	Org. C %	Total N %	1.3C N	Free Fe₂O₃ %	Available		HCl extract		Exchangeable cations
						P ppm	K ppm	P %	K %	Ca	Mg	K	Na	CEC	Ca % of CEC	Mg	K	Na	H
						P ppm	K ppm	P %	K %	Milliequivalents/100g				CEC	Ca % of CEC	Mg	K	Na	H
Al	0 - 10	2.2	0.20	14	0.9	10	280	0.023	0.24	4.5	1.3	0.5	0.08	14.6	31	9	3	1	56
A21	20 - 30	0.76	0.031	32	0.7	3	120	0.012	0.14	3.9	0.5	0.2	0.02	8.2	48	6	2	<1	44
A22	36 - 52				1.5			0.012	026	3.6	0.8	0.3	0.07	7.8	46	10	4	1	39
B2	52 - 60				3.7			0.013	0.36	9.3	2.9	0.5	0.3	25.1	37	12	2	1	48
C	70 - 83				2.5			0.009	0.42	9.5	3.1	0.5	0.4	21.2	45	15	2	2	36

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