Profile Number 50

Laboratory number:	0997	Profile Description
Site number:	709	A₁	0-25 cm	Very dark grey (10YR 3/1) loam; weak subangular blocky structure; rough-ped fabric; slightly hard when dry; pH 5.0; gradual boundary
Classification:	Northcote (1979) – Dy3.21 Stace et al (1972) - Soloth	A₂₁	25-75 cm	Dark greyish brown (10YR 4/2) sandy clay loam; few faint yellowish brown mottles; apedal; hard when dry; pH 5.5; gradual boundary
Location:	Moe 8121, grid ref. 475572 2 km SW of Churchill	A₂₂	75-100 cm	Greyish brown (10YR 5/2) sandy clay loam; common distinct yellowish brown (5-15 mm) mottles; weak angular blocky structure; rough-ped fabric; hard when dry; pH 6.5; clear boundary
Land system, component:	Westbury 2, 2	B₂	100-130 cm	Greyish brown (10YR 5/2) sandy clay; common distinct yellowish brown (5-15 mm) and pale brown mottles; strong angular blocky structure; smooth-ped fabric; very hard when dry; pH 7.0; clear boundary
Topography:	Mid-slope of rise, 6% slope	IIC	130-145 cm	Yellowish brown (10YR 5/6) clayey coarse sand; apedal; soft when dry; pH 7.0; gradual boundary
Elevation:	60 m	IIIC	145-150+ cm	Greyish brown (10YR5/2) heavy clay; common yellowish brown and pale brown (5-15mm) mottles; strong angular blocky structure; smooth-ped fabric; firm when moist; pH 7.0
Drainage:	Moderately good
Parent material:	Tertiary and Pleistocene sediments
Vegetation:	Cleared: a few remnant trees of Eucalyptus radiata and introduced grasses

LABORATORY ANALYSES 997
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 µS/cm	Cl- %	Depth cm	Composition %
A1	0-10	L	3	11	46	19	16					4.9	87	0.004
A21	30-60	L	4	13	50	25	15	19	13	6	4.0	5.2	130	0.011
A22	75-90	L	3	13	51	20	16	19	13	6	5.0	5.9	250	0.031
B2	100-120	SiCL	2	10	44	14	29	33	15	18	11	6.4	380	0.053

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
A1	0-10	4.5	0.28	21		28	140	0.014	0.041	0.9	1.3	0.4	0.4	27.3	3	5	1	1	90
A21		0.47	0.040	15	0.5	5	60	0.003	0.032	0.4	1.4	0.1	0.7	9.4	4	15	1	7	73
A22	75-90				0.8					0.4	2.5	0.03	1.2	7.5	5	33	<1	16	46
B2	100-120				0.5					0.9	7.5	0.1	3.5	14.0	6	54	1	25	14

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