*** Taxonomy Characterization Data ***

Pedon ID: 91TX395001

( Robertson, Texas )

Print Date: May 19 2024 10:51PM

Sampled as on Oct 30, 1991:	Silawa ; Fine-loamy, siliceous Ultic Haplustalfs
Revised to :

				United States Department of Agriculture
SSL	-	Project	CP92TX099   ROBERTSON COUNTY TEXAS	Natural Resources Conservation Service
	-	Site ID	S1991TX395001   Lat: 31° 1' 58.00" north  Long: 96° 37' 0.01" west  MLRA: 87	National Soil Survey Center
	-	Pedon No.	92P0387	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

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Taxonomy Tier 1				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-
					Fine	CaCO3	1500		.1-75	Bulk	Cole	Vol	Resist
				Clay	Clay	Clay	kPa	Clay	mm	Den	Whole	% of	Min
	Depth			<.002	<.0002	<.002	/Clay	Est	Frac	33 kPa	Soil	Whole	%
Layer	(cm)	Horz	Prep	(---------% of <2 mm-------)				(-------- % --------)		g cm-3	cm cm-1
				3A1a1a	3A1a1a		8D1			4A1d			7B1a2
92P02369	0-12	Ap	S	2.5	1.4		1.04		68	1.45	0.011
92P02370	12-21	A	S	3.3	1.9		0.55		64	1.58	0.004
92P02371	21-29	E	S	4.8	3.1		0.42		61	1.65	0.004	1
92P02372	29-47	Bt1	S	30.1	26.9		0.40		41	1.60	0.032		94
92P02373	47-87	Bt2	S	34.1	29.2		0.43		39	1.60	0.034	1	96
92P02374	87-97	2Bt1	S	32.6	28.6		0.38		46	1.65	0.029	6	96
92P02375	97-127	2Bt2	S	26.2	21.9		0.41		41	1.70	0.027
92P02376	127-160	2Bt3	S	22.5	17.2		0.41		44	1.69	0.023	1
92P02377	160-180	2Bt4	S	19.9	14.4		0.41		54	1.64	0.018	2	95
92P02378	180-210	3BCt	S	23.0	16.5		0.40		50	1.51	0.048	8	93
92P02379	210-218	3BC	S	14.5	10.9		0.43		74			7
92P02380	218-240	4C1	S	17.7	12.3		0.48		47			4
92P02381	240-270	4C2	S	12.0	8.8		0.53		75			1	90
92P02382	270-348	5C1	S	8.9	6.6		0.42		59			1
92P02383	348-387	5C2	S	13.8	8.9		0.49		39
92P02384	387-411	5C3	S	11.7	7.4		0.50		51			2	88

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Taxonomy Tier 2				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-
				pH	pH	Org	Tot	Al+½ Fe		CO3 as	(--- Base Sat ---)		NZ	ECEC	CEC7	ECEC	Al
	Depth			H2O	NaF	C	C	Oxal	ODOE	CaCO3	NH4	Bases	P Ret	cmol(+)	/Clay	/Clay	Sat	E C	ESP
Layer	(cm)	Horz	Prep			(------------------------------------------ % --------------------------------------------)								kg -1			%	dS m-1	%
				4C1a2a		6A1c			8J		5C1	5C3		5A3b	8D1		5G1		5D2
92P02369	0-12	Ap	S	5.3		0.88		0.05	0.01		85	65			1.32				--
92P02370	12-21	A	S	5.7		0.26		0.02	0.01		89	65			0.58				--
92P02371	21-29	E	S	6.0		0.19		0.03	tr		95	86			0.40				--
92P02372	29-47	Bt1	S	6.3		0.35		0.18	0.02		88	69			0.35				1
92P02373	47-87	Bt2	S	6.6		0.28		0.16	0.01		88	76			0.33				1
92P02374	87-97	2Bt1	S	5.5		0.21		0.13	0.01		81	70			0.34				1
92P02375	97-127	2Bt2	S	5.2		0.14		0.08	tr		88	69		8.7	0.37	0.33	3		1
92P02376	127-160	2Bt3	S	5.4		0.09		0.06	0.01		88	79		8.4	0.42	0.37	1		1
92P02377	160-180	2Bt4	S	5.6		0.06		0.05	--		91	81			0.44				1
92P02378	180-210	3BCt	S	5.6		0.07		0.05	0.02		92	86			0.46				1
92P02379	210-218	3BC	S	5.5		0.04		0.03	tr		89	80		6.5	0.50	0.45	2		1
92P02380	218-240	4C1	S	5.7		0.05		0.03	tr		93	84			0.51				1
92P02381	240-270	4C2	S	5.8		0.03		0.03	0.02		98	78			0.45				2
92P02382	270-348	5C1	S	6.1		0.03		0.01	0.02		100*	90			0.52				2
92P02383	348-387	5C2	S	6.1		0.01		0.01	0.02		99	92			0.59				1
92P02384	387-411	5C3	S	6.3		0.01		0.01	0.02		100*	94			0.62				1
92P02385	411	5C4	S	5.0		0.05			0.02

^*Extractable Ca may contain Ca from calcium carbonate or gypsum.

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Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.33	(NA)
Clay, carbonate free, Weighted Average	33	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	40	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	33	% wt
LE, Whole Soil, Summed to 1m	0	cm/m
Weighted averages based on control section: 29-79 cm