*** Primary Characterization Data ***

Pedon ID: S1975IA043010

( Clayton, Iowa )

Print Date: Feb 16 2025 5:59AM

Sampled as on Jul 15, 1975:	Downs ; Fine-silty, mixed, superactive, mesic Mollic Hapludalfs
Revised to correlated on Jul 15, 1975:	Downs ; Fine-silty, mixed, superactive, mesic Mollic Hapludalfs

				State of Iowa
SSL	-	Project	IAS201501   Iowa State Univeristy	Iowa State University
	-	Site ID	S1975IA043010   Lat: 43° 4' 51.84" north  Long: 91° 19' 50.03" west  MLRA: 105	Soil Characterization Laboratory
	-	Pedon No.	X22-162D3	Iowa State University Soil Characterization Laboratory
	-	General Methods 1B1A, 2A1, 2B		Ames, Iowa 50011-1010

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Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
ISU03871	Ap	Ap	0-20	16928	S1975IA043010-1		SIL	SIL
ISU03872	AB	AB	20-25	16929	S1975IA043010-2		SIL	SIL
ISU03873	Bt1	Bt1	25-38	16930	S1975IA043010-3		SICL	SIL
ISU03874	Bt2	Bt2	38-56	16931	S1975IA043010-4		SICL	SIL
ISU03875	BC	BC	56-89	16932	S1975IA043010-5		SIL	SIL

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PSDA  &  Rock Fragments				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-
					(- - - - - Total - - - - - -)			(- - Clay - - -)		(- - - - Silt - - - - -)		(- - - - - - - - - - - - Sand - - - - - - - - - - - -)					( Rock Fragments   (mm) )
				Lab	Clay	Silt	Sand	Fine	CO3	Fine	Coarse	VF	F	M	C	VC	(- - - - - - - - Weight - - - - - - - -)				>2 mm
				Text-	<	.002	.05	<	<	.002	.02	.05	.10	.25	.5	1	2	5	20	.1-	wt %
	Depth			ure	.002	-.05	-2	.0002	.002	-.02	-.05	-.10	-.25	-.50	-1	-2	-5	-20	-75	75	whole
Layer	(cm)	Horz	Prep		(- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -)												(- - - - - - - % of <75mm - - - - - -)				soil
					3A1					3A1
ISU03871	0-20	Ap	S	sil	25.6	70.3	4.1			29.5	40.8
ISU03872	20-25	AB	S	sil	26.4	70.2	3.4			25.9	44.3
ISU03873	25-38	Bt1	S	sil	26.1	70.5	3.4			27.1	43.4
ISU03874	38-56	Bt2	S	sil	25.8	70.8	3.4			27.6	43.2
ISU03875	56-89	BC	S	sil	26.2	70.8	3.0			28.0	42.8

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Carbon  &  Extractions

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

-19-

(- - - - - Total - - - - -)

Est

OC

C/N

(- - - Dith-Cit Ext - - -)

(- - - - - - Ammonium Oxalate Extraction - - - - - -)

(- - - Na Pyro-Phosphate - - -)

Depth

C

N

S

OC

(WB)

Ratio

Fe

Al

Mn

Al+½Fe

ODOE

Fe

Al

Si

Mn

C

Fe

Al

Mn

Layer

(cm)

Horz

Prep

(- - - - - - - - - - % of <2 mm - - - - - - - - - -)

(- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -)

mg kg-1

(- - - - - - % of < 2mm - - - - -)

4H2a

ISU03871

0-20

Ap

S

1.19

ISU03872

20-25

AB

S

0.52

ISU03873

25-38

Bt1

S

0.30

*** Primary Characterization Data ***

Pedon ID: S1975IA043010

( Clayton, Iowa )

Print Date: Feb 16 2025 5:59AM

Sampled As	:	Downs		Fine-silty, mixed, superactive, mesic Mollic Hapludalfs
Iowa State University Soil Characterization Laboratory			;	Pedon No.  X22-162D3

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pH  &  Carbonates

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

(- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -)

(- - Carbonate - -)

(- - Gypsum - - -)

CaCl2

As CaCO3

As CaSO4*2H2O

Resist

Depth

0.01M

H2O

Sat

<2mm

<20mm

<2mm

<20mm

ohms

Layer

(cm)

Horz

Prep

KCl

1:2

1:1

Paste

Oxid

NaF

(- - - - - - - - - - - - % - - - - - - - - - - -)

cm-1

4C1a2a

ISU03871

0-20

Ap

S

5.3

ISU03872

20-25

AB

S

5.5

ISU03873

25-38

Bt1

S

5.6

ISU03874

38-56

Bt2

S

5.4

ISU03875

56-89

BC

S

5.6