Agency Code: 501 Project Code: P Site Code: 0344
Described by: Eric Bettenay Date: 17/09/1957

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

Location: MGA94 Zone: 50  612838 mE  6517652 mN Map sheet:  Merredin 100K
Location notes: 
Site notes: 
Disturbance: Complete clearing; past cultivation.

Landform
Landform pattern: alluvial plain
Relief/modal slope:
Landform element: valley flat
Morphological type: flat
Pattern Relief:  alluvial plain

Surface and Hydrological Properties
Rock outcrop:   
Surface coarse fragments: 
Physical properties: 

Geology/parent material
Soil parent material: unconsolidated material (unidentified)

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

Current Classification
WA Soil Group: (1999) Brown deep loamy duplex
Map Unit: 258KbME

Other Classifications
Great Soil Group:  Soloth

Soil Profile Description

Horizon	Depth (cm)	Description	
Ap	0-9	Light brownish grey (10YR 6/2 moist) sandy loam; very strong consistence; massive structure; few quartz coarse fragments; clear, smooth boundary.	
B11	9-22	Reddish yellow (7.5YR 6/6 moist) sandy clay loam; very strong consistence; massive structure; clear, smooth boundary.	
B12	22-51	Brown (10YR 5/3 moist) sandy clay loam; yellowish brown (10YR 5/6 moist)  mottles; very strong dry consistence, moderately plastic; massive structure; clear, smooth boundary.	
B21	51-58	Yellowish brown (10YR 5/6 moist) medium clay; many ferruginous concretions; many quartz coarse fragments; clear, smooth boundary.	
B22	58-91	Light grey (10YR 7/1 moist) sandy medium clay; reddish brown (5YR 4/4 moist)  mottles; many ironstone coarse fragments.	

Lab Results (501 P 0344)

Basic Chemistry

Sample	Horizon	Match	Depth	pH_w	EC	Cl_sol	LOI	OC_wb	N_kjel	P_HCl	
1	1	A	0-9	6.6	5.1	24	1.8	0.78	0.037	70	
2	2	A	9-22	5.5	6.3	24	3		0.025	40	
3	3	A	22-51	6.3	5.4	12	3.6		0.017	50	
4	4	A	51-58	7.6	2.7	12	2.7		0.013	30	
5	5	A	58-91	7.3	5.4	36	3.7		0.015	40	

Exchangeable Cations

Sample	Horizon	Match	Depth	Exch_Ca	Exch_Na	Exch_K	Exch_Mg	Exch_ac	Exch_H	Sum_Exch	ESP	CaMgR_Exch	Base_stat	
1	1	A	0-9	2.9	0.02	0.27	0.9	2.8	2.8	4.09 (1)	0 (3)	3.22 (1)	37.18 (2)	
2	2	A	9-22	1.8	0.03	0.01	0.9	2.8	2.8	2.74 (1)	1 (3)	2 (1)	19.57 (2)	
3	3	A	22-51	2.3	0.04	0.03	0.9	2.4	2.4	3.27 (1)	1 (3)	2.56 (1)	17.21 (2)	
4	4	A	51-58	1.5	0.1	<0.01	0.8	1.2	1.2	2.405 (1)	4 (3)	1.88 (1)	18.5 (2)	
5	5	A	58-91	2.4	1.6	0.16	2.4	1.8	1.8	6.56 (1)	24 (3)	1 (1)	26.24 (2)	

Particle Size Analysis

Sample	Horizon	Match	Depth	s200_2000u	s20_200u	silt	clay	
1	1	A	0-9	61	20	6	11	
2	2	A	9-22	63	15	4	14	
3	3	A	22-51	52	21	5	19	
4	4	A	51-58	66	16	4	13	
5	5	A	58-91	48	17	6	25