*** Primary Characterization Data ***

Pedon ID: 1974AR02109

( Clay, Arkansas )

Print Date: Oct 31 2025 7:14AM

Sampled as :
Revised to :

				State of Arkansas
SSL	-	Project	AR201301   University of Arkansas	University of Arkansas
	-	Site ID	1974AR02109   Lat: 36° 25' 54.98" north  Long: 90° 24' 36.00" west	Department of Crop, Soil, and Environmental Sciences
	-	Pedon No.	74CY09	115 Plant Science Building
	-	General Methods 1B1A, 2A1, 2B		Fayetteville, Arkansas 72701

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
UAR0007732	Ap	Ap	0-13	74CY09	UAR0007732			SIL
UAR0007733	Eg	Eg	13-25	74CY09	UAR0007733			L
UAR0007734	Bg	Bg	25-41	74CY09	UAR0007734			L
UAR0007735	Btg1	Btg1	41-66	74CY09	UAR0007735			L
UAR0007736	Btg2	Btg2	66-102	74CY09	UAR0007736			CL
UAR0007737	Btng	Btng	102-137	74CY09	UAR0007737			L
UAR0007738	Bckng	Bckng	137-183	74CY09	UAR0007738			L

---

---

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
					hyd1					hyd1		hyd1	hyd1	hyd1	hyd1	hyd1
UAR0007732	0-13	Ap	S	sil	12.9	50.4	36.7			30.9	19.5	16.6	17.7	1.6	0.7	0.1
UAR0007733	13-25	Eg	S	l	13.0	45.6	41.4			26.2	19.4	21.4	18.8	0.9	0.2	0.1
UAR0007734	25-41	Bg	S	l	16.2	44.9	38.9			26.7	18.2	20.7	17.2	0.8	0.2	--
UAR0007735	41-66	Btg1	S	l	23.7	41.1	35.2			25.6	15.5	18.1	16.3	0.6	0.1	0.1
UAR0007736	66-102	Btg2	S	cl	28.9	35.9	35.2			20.7	15.2	18.2	16.1	0.6	0.2	0.1
UAR0007737	102-137	Btng	S	l	26.6	35.0	38.4			19.6	15.4	19.1	17.9	0.8	0.5	0.1
UAR0007738	137-183	Bckng	S	l	16.3	32.6	51.1			13.7	18.9	28.3	22.0	0.4	0.3	0.1

*** Primary Characterization Data ***

Pedon ID: 1974AR02109

( Clay, Arkansas )

Print Date: Oct 31 2025 7:14AM

Sampled As	:
University of Arkansas Soil Characterization Laboratory			;	Pedon No.  74CY09

---

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 - - - - -)

6A1a

UAR0007732

0-13

Ap

S

2.80

UAR0007733

13-25

Eg

S

0.70

UAR0007734

25-41

Bg

S

0.70

UAR0007735

41-66

Btg1

S

0.50

UAR0007736

66-102

Btg2

S

0.60

UAR0007737

102-137

Btng

S

0.20

UAR0007738

137-183

Bckng

S

0.30

---

CEC  &  Bases				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-
				(- - - - - - NH4OAC Extractable Bases - - - - -)								CEC8	CEC7	ECEC		(- - - - Base - - - -)
								Sum	Acid-	Extr	KCl	Sum	NH4	Bases	Al	(- Saturation -)
	Depth			Ca	Mg	Na	K	Bases	ity	Al	Mn	Cats	OAC	+Al	Sat	Sum	NH4OAC
Layer	(cm)	Horz	Prep	(- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -)							mg kg-1	(- - - - cmol(+) kg-1 - - -)			(- - - - - - - - % - - - - - - - -)
				6N2	6O2f	6P2a	6Q2a		6H2a
UAR0007732	0-13	Ap	S	2.5	0.6	0.2	0.1	3.4	9.4			12.8				27
UAR0007733	13-25	Eg	S	2.0	0.5	0.2	0.1	2.8	5.7			8.5				33
UAR0007734	25-41	Bg	S	2.4	0.7	0.3	0.1	3.5	8.0			11.5				30
UAR0007735	41-66	Btg1	S	5.5	1.7	1.0	0.1	8.3	8.2			16.5				50
UAR0007736	66-102	Btg2	S	10.4	3.1	3.7	0.3	17.5	2.5			20.0				88
UAR0007737	102-137	Btng	S	10.5	3.9	4.4	0.3	19.1	2.3			21.4				89
UAR0007738	137-183	Bckng	S	6.9	4.7	2.8	0.2	14.6	1.1			15.7				93

*** Primary Characterization Data ***

Pedon ID: 1974AR02109

( Clay, Arkansas )

Print Date: Oct 31 2025 7:14AM

Sampled As	:
University of Arkansas Soil Characterization Laboratory			;	Pedon No.  74CY09

---

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

8C1a

UAR0007732

0-13

Ap

S

4.8

UAR0007733

13-25

Eg

S

5.1

UAR0007734

25-41

Bg

S

5.1

UAR0007735

41-66

Btg1

S

5.2

UAR0007736

66-102

Btg2

S

7.1

UAR0007737

102-137

Btng

S

7.3

UAR0007738

137-183

Bckng

S

7.9

---

Phosphorous

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

(- - - - - - - - - - - - - - - - - - - - - - - Phosphorous - - - - - - - - - - - - - - - - - - - - -)

KCl

Melanic

NZ

Acid

Anion Exch Resin

Bray

Bray

Olsen

H2O

Citric

Mehlich

Extr

Depth

Index

Oxal

Available

Capacity

1

2

Acid

III

NO3

Layer

(cm)

Horz

Prep

%

(- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -)

6S3

UAR0007732

0-13

Ap

S

25.0

UAR0007733

13-25

Eg

S

14.0

UAR0007734

25-41

Bg

S

8.0

UAR0007735

41-66

Btg1

S

9.0

UAR0007736

66-102

Btg2

S

12.0

UAR0007737

102-137

Btng

S

25.0

UAR0007738

137-183

Bckng

S

12.0