Profile Number 27

Laboratory number:	0939	Profile Description
Site number:	386	A₁	0 - 20 cm	Black (10YR 2/1) light clay; strong coarse (10 mm) subangular blocky structure; rough-ped fabric; friable when moist; 5% quartz gravel up to 10 mm; abundant grass roots; pH 6.0; clear wavy boundary
Classification:	Northcote (1979) - Uf6.11 Stace et al. (1972) - Prairie Soil	B₂	20 - 35 cm	Very dark grey (10YR 3/1) medium clay; moderate coarse (20 mm) subangular blocky structure; rough-ped fabric; firm when moist; few roots; pH 6.5; gradual smooth boundary
Location:	Maffra 8222, grid ref. 983106 13 km N of Maffra	B₃	35 - 60 cm	Dark reddish brown (5YR 3/2) sandy clay; weak coarse (40 mm) subangular blocky structure; rough-ped fabric; few roots; pH 7.0; gradual wavy boundary
Land system, component:	Maffra 1, 1	C₁	60 - 150 cm	Dark reddish brown (5YR 3/3) light sandy clay; common distinct yellowish brown (5 - 15 mm) mottles; weak coarse (40 mm) angular blocky structure; rough-ped fabric; firm when moist; few roots; pH 7.0; clear boundary
Topography:	Alluvial terrace, 0% slope	C₂	150 - 170 cm	Reddish brown (5YR 4/4) sandy loam; common distinct yellowish brown (5 - 15 mm) mottles; apedal; earthy fabric; friable when moist; pH 7.5
Elevation:	40 m
Drainage:	Good
Parent material:	Holocene fine-textured alluvium
Vegetation:	Cleared; grassland, mostly of introduced species, and scattered Eucalyptus tereticornis
Remarks:	Monolith taken

LABORATORY ANALYSES 939
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	SiCL	4	4	31	27	31					5.7	43	0.005	20 - 30	mica 50;
Al	10 - 20		0					46	27	19	10					Kaolinite 10;
B2	20 - 30	SiCL	0	1	36	30	30	37	22	15	10	6.2	31	0.003		illite 40
B3	35 - 60	SiL	0	3	45	27	23					6.7	23	0.002
CI	90 - 120	SiL	0	1	44	32	24					7.3	35	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	4.76	0.27	23	2.1	9	120	0.038	0.34	8.7	2.9	0.5	0.3	27.6	32	11	2	1	54
Al	10-20
B2	20 - 30	1.79	0.15	16	2.4	4	50	0.031	0.36	10.1	3.3	0.3	0.3	23.0	44	14	1	1	40
B3	35 - 60				2.2			0.021	0.31	6.8	2.8	0.2	0.3	14.1	48	20	1	2	29
Cl	90 - 120				2.8			0.021	0.29	5.3	3.4	0.2	0.6	12.8	41	27	2	5	25

Horizon	Sample Depth cm	Bulk Density g/mL	Total Porosity %(V/V)	Volumetric field capacity %	Water content wilting point %	Calculated Available Water %	Calculated macro-porosity %(V/V)
Al	0 - 10	1.04	60.7	42.6	20.4	22.2	18.1
B2	20 - 30	1.50	43.2	33.2	20.4	12.8	10.0
B3	35 - 60	1.56	41.0	30.9	18.2	12.7	10.1

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