Agency Code: 501 Project Code: KLC Site Code: 0799
Described by: Heather Percy Date: 13/05/1993

Observation type: soil pit Category: full description
Lab Analyses: Detailed chemical and physical analyses.

Location: MGA94 Zone: 50  542880 mE  6343978 mN Elevation (m): 300  Map sheet:  Wagin 100K
Location notes: East Narrogin soil pit (G. Ballard)
Site notes: 
Disturbance: Cultivation, rainfed.

Landform
Landform pattern: alluvial plain	Slope:  0 %
Relief/modal slope: level plain
Landform element: plain
Morphological type: flat
Pattern Relief:  alluvial plain	Microrelief: 1 m

Surface and Hydrological Properties
Rock outcrop: 0 %  
Surface coarse fragments: no gravel sized; no stones and boulder sized
Physical properties: recently cultivated; ; moderately slow profile permeability; deep soil

Geology/parent material
Soil parent material: unconsolidated material (unidentified)
Alluvium, regional geology indicates colluvium with minor alluvial deposits (Qc)
Geology: unconsolidated material (unidentified)

Vegetation
Type:  no vegetation; Surrounded by:  woodland
Notes: Wandoo woodland with mallee, melaleuca species understorey

Land use
Site: Cropping (may include grazing in rotation). Surrounds: Cropping (may include grazing in rotation).

Visible erosion, assessed flooding and salinity
no flooding, no ponding, no salinity.

Current Classification
WA Soil Group: (1999) Grey shallow sandy duplex
Soil Series: Indinup 1
Map Unit: 257Ar_1

Other Classifications
Northcote PPF: Dg3.43

Soil Profile Description

Horizon	Depth (cm)	Description	
Ap	0-20	Dark grey (10YR 4/1 moist) medium sand; no mottles; loose moist consistence; apedal, single grain structure; no segregations segregations; no coarse fragments; rapid permeability, non water repellent; many fine roots; pH 6 (Raupach and Tucker); EC 4 (mS/m (1:5)); abrupt, wavy boundary.	
A2e	20-25	Light grey (10YR 7/2 moist), white (10YR 8/1 dry) medium sand; no mottles; loose moist consistence; apedal, single grain structure; no segregations segregations; no coarse fragments; rapid permeability; many very fine roots; pH 6 (Raupach and Tucker); EC 6 (mS/m (1:5)); abrupt, wavy boundary.	
B21	25-60	Light grey (2.5Y 7/2 moist) medium sandy light medium clay; common coarse distinct dark greyish brown (10YR 4/2 moist)  biological mottles; firm moderately moist consistence; rough-ped fabric; pedal, strong, 100-200 mm, columnar structure; no segregations segregations; no coarse fragments; moderately slow permeability, slow dispersion, slow slaking; common very fine roots; pH 5 (Raupach and Tucker); EC 65 (mS/m (1:5)); notes: Parting to 5, PO. Mottles due to roots; gradual boundary.	
B22k	60-115+	Light grey (2.5Y 7/2 moist) medium clay; few medium distinct brownish yellow (10YR 6/8 moist)  redox mottles; very firm moderately moist consistence; pedal, moderate, polyhedral structure; common very coarse calcareous soft segregations and  common coarse calcareous concretions; no coarse fragments; moderately slow permeability, slow dispersion, rapid slaking; few very fine roots; pH 9.5 (Raupach and Tucker); EC 93 (mS/m (1:5)).	

Lab Results (501 KLC 0799)

Basic Chemistry

Sample	Horizon	Match	Depth	pH_w	pH_CaCl2	EC	CaCO3_tot	OC_wb	N_kjel	P_kjel	P_HCO3	PRI	K_HCO3	Al_CaCl2	
A	1	A	0-20	6	5.1	16		0.97	0.046	64		2.1		<1	
B	2	A	20-25	5.6	4.6	14		0.28	0.012	18		1.6		1	
C	3	A	25-60	5.3	4.4	69		0.24	0.018	22		13		1	
D	4	B	60-90	9.3	8.6	153	<2	0.09	0.01	22		13			
E	4	B	90-115	8.9	8.1	132	<2	0.08	0.008	23		20			
P	3	B	25-30	5	4.2	60									
Q	3	B	30-50	5.2	4.6	120									
R	3	B	50-60	8.4	7.6	120	<2								
S	1	B	0-10		5										
T	1	B	10-20		4.8										
U	3	B	40-50		4.5										
Y	1	B	0-10	5.5	4.7	6		1.54	0.085	140	36		35		
Z	1	B	0-10	6.2	5.3	25		2.24	0.087	62	6		94		

Exchangeable Cations

Sample	Horizon	Match	Depth	CEC	Exch_Ca	Exch_Na	Exch_K	Exch_Mg	Exch_Mn	Exch_Al	Sum_Exch	ESP	CaMgR_Exch	Exch_cats%	Base_stat	
A	1	A	0-20		1.46 (2)	0.44 (2)	0.1 (2)	0.43 (2)	0.02 (2)	0.05 (2)	2.43 (1)	18 (3)	3.4 (1)		56.51 (2)	
B	2	A	20-25		0.29 (2)	0.62 (2)	0.02 (2)	0.41 (2)	<0.02 (2)	0.12 (2)	1.34 (1)	46 (3)	0.71 (1)		49.63 (2)	
C	3	A	25-60		0.68 (2)	3.52 (2)	0.2 (2)	4.82 (2)	<0.02 (2)	0.06 (2)	9.22 (1)	38 (3)	0.14 (1)		33.05 (2)	
D	4	B	60-90	13 (3)	0.97 (3)	6.61 (3)	0.62 (3)	6.69 (3)			14.89 (1)	51 (2)	0.14 (1)	115 (2)	44.05 (2)	
E	4	B	90-115	14 (3)	0.91 (3)	7.1 (3)	0.69 (3)	6.33 (3)			15.03 (1)	51 (2)	0.14 (1)	107 (2)	41.75 (2)	
P	3	B	25-30		0.45 (2)	1.19 (2)	0.1 (2)	2.59 (2)	<0.02 (2)	0.39 (2)	4.33 (1)	27 (3)	0.17 (1)		27.94 (2)	
Q	3	B	30-50		0.66 (2)	2.62 (2)	0.21 (2)	5.75 (2)	<0.02 (2)	0.17 (2)	9.24 (1)	28 (3)	0.11 (1)		34.22 (2)	
R	3	B	50-60	13 (3)	1.15 (3)	5.11 (3)	0.53 (3)	5.41 (3)			12.2 (1)	39 (2)	0.21 (1)	94 (2)	40 (2)	

Particle Size Analysis

Sample	Horizon	Match	Depth	gt2mm	s1000_2000	s600_1000u	s300_600u	s180_300u	s150_180u	s106_150u	s75_106u	sand	s20_75u	silt	clay	
A	1	A	0-20	5.99	11.3	18.4	24.6	13.1	3.9	5.1	4.9		10.4	4	4.3	
B	2	A	20-25	4.97	9.4	18.9	26.5	14.9	4.4	6.1	5.6		8.9	2.6	2.7	
C	3	A	25-60	8.36	3.8	9.6	16	9.7	3	4.5	4.8		12.9	7.8	27.9	
D	4	B	60-90	12.87	6.5	11.2	13.5	7.3	2.2	3.4	3.7		9.8	8.6	33.8	
E	4	B	90-115	11.37	7	11.5	14.1	6.6	2	3.1	3.2		7.4	9.1	36	
P	3	B	25-30	0								77		7.5	15.5	
Q	3	B	30-50	0								65.5		7.5	27	
R	3	B	50-60	0								61.5		8	30.5	
Y	1	B	0-10	0												
Z	1	B	0-10	0