*** Primary Characterization Data ***

Pedon ID: 75-OK015-75-5

( Caddo, Oklahoma )

Print Date: Apr 26 2024 9:10PM

Sampled as on Aug 20, 1975:	Cordell ; Loamy, mixed, thermic Lithic Ustochrepts
Revised to correlated on May 7, 2018:	Ironmound ; Loamy, mixed, active, thermic Lithic Haplustepts

				State of Oklahoma
SSL	-	Project	OKSU201401   Oklahoma State Univeristy	Oklahoma State University
	-	Site ID	75-OK015-75-5   Lat: 35° 26' 57.67" north  Long: 98° 32' 59.13" west  MLRA: 80A	Soil Characterization Laboratory
	-	Pedon No.	75-OK-75-5	045 Agriculture Hall
	-	General Methods 1B1A, 2A1, 2B		Stillwater, Oklahoma 74078

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
75OK7551	A	A	0-18	75-OK015-75-5-1	75OK7551		SIL	SIL
75OK7552	Bt1	Bt1	18-28	75-OK015-75-5-2	75OK7552		SICL	SIL
75OK7553	Bt2	Bt2	28-38	75-OK015-75-5-3	75OK7553		SICL	SI
75OK7554	R	R	38-64	75-OK015-75-5-4	75OK7554			SIL

---

---

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
75OK7551	0-18	A	S	SIL	18.0	75.9	6.0					5.0	0.7	0.2	0.1	0.1
75OK7552	18-28	Bt1	S	SIL	19.0	76.0	5.0					4.0	0.6	0.2	0.1	0.1
75OK7553	28-38	Bt2	S	SI	10.0	84.3	5.7					4.4	1.0	0.2	0.1	0.1
75OK7554	38-64	R	S	SIL	10.5	71.0	18.4					7.2	9.8	0.8	0.4	0.2

---

Bulk Density  &  Moisture

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

(Bulk Density)

Cole

(- - - - - - - - - - - Water Content - - - - - - - - - - -)

( Air Dry-Oven Dry )

WRD

Aggst

33

Oven

Whole

6

10

33

1500

1500 kPa

(- - - - Ratio - - - -)

Whole

Stabl

(- - Ratio/Clay - -)

Depth

kPa

Dry

Soil

kPa

kPa

kPa

kPa

Moist

Corrected

Soil

2-0.5mm

CEC7

1500 kPa

Layer

(cm)

Horz

Prep

(- - - g cm-3 - - -)

(- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -)

cm3 cm-3

%

75OK7551

0-18

A

S

1.06

75OK7552

18-28

Bt1

S

0.98

75OK7553

28-38

Bt2

S

1.57

75OK7554

38-64

R

S

1.11

*** Primary Characterization Data ***

Pedon ID: 75-OK015-75-5

( Caddo, Oklahoma )

Print Date: Apr 26 2024 9:10PM

Sampled As	:	Cordell		Loamy, mixed, thermic Lithic Ustochrepts
Oklahoma State University			;	Pedon No.  75-OK-75-5

---

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

75OK7551

0-18

A

1.25

75OK7552

18-28

Bt1

1.11

75OK7553

28-38

Bt2

0.82

---

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 - - -)			(- - - - - - - - % - - - - - - - -)
				6N2a	6O2a	6P2b	6Q2b			6G2a			5A1a
75OK7551	0-18	A	S	29.1*	5.5	0.1	0.6	35.3		--			19.0				100
75OK7552	18-28	Bt1	S	36.8*	5.4	0.1	0.4	42.7		--			18.6				100
75OK7553	28-38	Bt2	S	36.5*	6.0	0.2	0.3	43.0		--			15.7				100
75OK7554	38-64	R	S	34.1*	7.0	0.2	0.3	41.6		--			11.7				100

^*Extractable Ca may contain Ca from calcium carbonate or gypsum., CEC7 base saturation set to 100.

---

Salt

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

-19-

-20-

(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Extracted From Saturated Paste - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)

1:2

Total

Elec

Elec

Exch

Depth

Ca

Mg

Na

K

CO3

HCO3

F

Cl

PO4

Br

OAC

SO4

NO2

NO3

H2O

Salts

Cond

Cond

Na

SAR

Layer

(cm)

Horz

Prep

(- - - - - mmol(+) L-1 - - - - -)

(- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -)

(- - - - % - - - -)

(- - dS m-1 - -)

%

75OK7551

0-18

A

S

tr

75OK7552

18-28

Bt1

S

tr

75OK7553

28-38

Bt2

S

1

75OK7554

38-64

R

S

1

*** Primary Characterization Data ***

Pedon ID: 75-OK015-75-5

( Caddo, Oklahoma )

Print Date: Apr 26 2024 9:10PM

Sampled As	:	Cordell		Loamy, mixed, thermic Lithic Ustochrepts
Oklahoma State University			;	Pedon No.  75-OK-75-5

---

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

8C1c

8C1a

75OK7551

0-18

A

7.1

8.3

75OK7552

18-28

Bt1

7.5

8.3

75OK7553

28-38

Bt2

7.8

8.4