Alabama

Charles Mitchell
Crop, Soil, and Environmental Science
201 Funchess Hall
Auburn University, AL 36849-5412
Office: 334-844-5489
Fax: 334-844-3945
mitchc1@auburn.edu
Dr. Gobi Huluka
Crop, Soil, and environmental Science
201 Funchess Hall
Auburn University, AL 36849
Office: 334-844-3926
FAX: 334-844-4001
hulukgo@auburn.edu
Steve Phillips
International Plant Nutrition Institute (IPNI)
3118 Rocky Meadows Rd.
Owens Cross Roads, AL 35763
Office: 256-529-9932
sphillips@ipni.net

Arkansas

Nathan Slaton
University of Arkansas
1366 W. Altheimer Drive
Fayetteville, AR 72704
Office: 479-575-3910
Fax: 479-575-3869
nslaton@uark.edu
John Hatten Jr.
University of Arkansas
1366 W. Altheimer Drive
Fayetteville, AR 72704
Office: 479-575-3911
Fax: 479-575-3869
hatten@uark.edu
Nathan McKinney
University of Arkansas
1120 W. Maple
Fayetteville, AR 72701
Office: 479-575-6951
nmckinne@uark.edu
Diane Lafex
University of Arkansas
Soil Testing
P O Drawer 767
Marianna, Arkansas 72360
Office: 870-295-2851
Fax: 870-295-2432
dlafex@uark.edu
Cindy Herron
University of Arkansas
Soil Testing
P O Drawer 767
Marianna, Arkansas 72360
Office: 870-295-2851
Fax: 870-295-2432
cherro@uark.edu
Cliff Snyder
International Plant Nutrition Institute
P.O. Drawer 2440
Conway, AR 72033
Office: 501-336-8110
Fax: 501-329-2318
csnyder@ipni.net
Leo Espinoza
University of Arkansas
Cooperative Extension Service
P O Box 391
Little Rock, AR 72203
Office: 501-671-2168
Fax: 501-671-2297
lespinoza@uaex.edu
Trenton Roberts
University of Arkansas
1366 W. Altheimer Drive
Fayetteville, AR 72704
Office: 479-575-6752
Fax: 479-575-3869
tlrobert@uark.edu

Colorado

Robert Miller
ALP & MAP Programs
Colorado State University
Fort Collins, CO 80523
Office: 970-686-5782
Fax: 970-491-0564
rmiller@colostate.edu

Florida

Rao Mylavarapu - Past Chair
Soil & Water Science Dept., UF
171 McCarty Hall
P. O. Box 110290
Gainesville, FL 32611-0290
Office: 352-294-3113
Fax: 352-392-3902
raom@ufl.edu
William d'Angelo
Soil and Water Science Dept., UF
2390 Mowry Road
P.O. Box 110740
Wallace Bldg 631
Gainesville, FL 32611-0740
Office: 352-392-1950 x223
Fax: 352-392-1960
wdangelo@ufl.edu
Tom Obreza - Extension Administrative Advisor
UF/IFAS Extension Administration
P.O. Box 110210
1038 McCarty Hall
Gainesville, FL 32611
Office: 352-392-1761
obreza@ufl.edu

Georgia

Leticia S. Sonon - Chair
Agricultural and Environmental Services Laboratories
University of Georgia
2300 College Station Road
Athens, GA 30602-9105
Office: 706-542-5350
Fax: 706-369-5734
lsonon@uga.edu
Uttam K. Saha
Agricultural and Environmental Services Laboratories
University of Georgia
2300 College Station Road
Athens, GA 30606
Office: 706-542-7690
Fax: 706-542-1474
sahau@uga.edu
Yuangen Yang
Agricultural and Environmental Service Laboratories
University of Georgia
2300 College Station Rd.
Athens, GA 30602
ygyang@uga.edu
Jason Lessl
Agricultural and Environmental Services Lab
University of Georgia
2300 College Station Road
Athens, GA 30602
Office: 706-542-0395
jlessl@uga.edu

Kentucky

Frank J. Sikora - Past Chair
University of Kentucky
Soil Testing Lab
103 Regulatory Service Bldg.
Lexington, KY 40546-0275
Office: 859-218-2452
Fax: 859-257-7351
fsikora@uky.edu
Diane Hunter
University of Kentucky
Soil Testing Lab
Office: 859-257-2785
diane.hunter@uky.edu
Edwin Ritchey
University of Kentucky
Extension Soil Specialist - Princeton
1205 Hopkinsville Street
Princeton, KY 42445
P.O. Box 469
Office: 270-365-7541 ext. 301
edwin.ritchey@uky.edu
Josh McGrath
University of Kentucky
Extension Soil Specialist - Lexington
N-122 Ag Science Center North
Lexington, HY 40546-0091
Office: 859-257-8887
josh.mcgrath@uky.edu

Louisiana

J. Stevens
Associate Specialist
Soil Fertility/Nutrient Management
8208 Tom Bowman Drive
Alexandria, LA 71302
Office: 318-427-4424
Fax: 318-427-6503
jstevens@agctr.lsu.edu
Jim Wang
Louisiana State University
School of Plant, Environmental and Soil Sciences
313 Sturgis Hall
Baton Rouge, LA 70803
Office: 225-578-1360
Fax: 225-578-1403
jjwang@agctr.lsu.edu

Mississippi

Larry Oldham
Department of Plant and Soil Sciences
Box 9555
Mississippi State, MS 39762
Office: 662-325-2760
Fax: 662-325-8742
larry.oldham@msstate.edu
Ardeshir Adeli
USDA-ARS
P O Box 5367, 810 Hwy, 12 E
Mississippi State, MS 39762
Office: 662-320-7450
Fax: 662-320-7544
aadeli@msa-msstate.ars.usda.gov
Bobby Golden
Delta Research and Ext.
P. O. Box 197
Stoneville, MS
Office: 662-686-3215
bgolden@drec.msstate.edu
Keri Jones
Mississippi State University
Soil Testing Laboratory
P.O. Box 9610
Mississippi State, MS 39762
Office: 662-325-3313
kkd1@msstate.edu

Missouri - NCR-13

Manjula V. Nathan
University of Missouri
Soil & Plant Diagnostic Service Laboratory
23 Mumford Hall
Columbia, MO 65211
Office: 573-882-3250
Fax: 573-884-4288
nathanm@missouri.edu

North Carolina

David Hardy
NCDA & CS Agronomic Division
Soil Testing Section
4300 Reedy Creek Road
1040 Mail Service Center
Raleigh, NC 27699-1040
Office: 919-733-2655
Fax: 919-733-2837
Home: 919-610-5922
david.hardy@ncagr.gov
Kristin Hicks
NCDA & CS Agronomic Division
Plant/Waste/Solution/Media Section
1040 Mail Service Ctr
Raleigh, NC 27699-1040
Office: 919-733-2655
Fax: 919-733-2837
kristin.hicks@ncagr.gov
Colleen Hudak-Wise
NCDA&CS Agronomic Division
1040 Mail Service Center
Raleigh, NC 27699-1040
Office: 919-733-2655
Fax: 919-733-2837
colleen.hudak@ncagr.gov
Carl Crozier
NCSU Soil Sci Dept.
V.G. James Center
207 Res St. Rd.
Plymouth, NC 27962
Office: 252-793-4428 x 134
carl_crozier@ncsu.edu
Deanna L. Osmond
Associate Head and Department Extension Leader
Dept. of Crop and Soil Sciences
NC State University
Raleigh, NC 27695
Office: 919.515.7303
dosmond@ncsu.edu

Oklahoma

Hailin Zhang
Oklahoma State University
Department of Plant and Soil Sciences
045 Agriculture Hall
Stillwater, OK 74078
Office: 405-744-9566
Fax: 405-744-5269
hailin.zhang@okstate.edu
Kendal Henderson
Oklahoma State University
Department of Plant and Soil Sciences
048 Ag Hall
Stillwater, OK 74078
Office: 405-744-7771
kendalt@okstate.edu

Puerto Rico

David Sotomayor
Univ. of Puerto Rico - Mayaquez Campus
Crop and Agroenvironmental Sciences Dept.
P. O. Box 9030
Mayaquez, P. R. 00681-9030
Office: 787-832-4040 x 5819
Fax: 787-265-3851
david.sotomayor@upr.edu
academic.uprm.edu@dsotomayor
Mary Jeane Sanchez
USDA Forest Service
International Institute of Tropical Forestry
P O Box 25000
Rio Piedras, PR 00918
Phone: 787-766-5335
mjsanche@coqui.net

South Carolina

Shannon Alford, Director
Agricultural Service Laboratory
171 Old Cherry Road
Clemson, SC 29634
864.656.2068
Fax: 864.656.2069
sralfor@clemson.edu
Bhupinder S. Farmaha, Assistant Professor, Nutrient Management Specialist
Department of Plant & Environmental Sciences, Clemson University
Edisto Research & Education Center
64 Research Road
Blackville, South Carolina 29817
Office: 803-284-3343 Ext. 244
Cell: 217-778-5170
bfarmah@clemson.edu

Tennessee

Dr. Robert Florence
U. T. Soil, Plant, and Pest Center
5201 Marchant Drive
Nashville, TN 37211-5112
Office: 615-832-5850
Fax: 615-832-4936
Hugh Savoy
Room 212 Biosystems Engineering and Soil Science Building
2506 E. J. Chapman Drive
Knoxville, TN 37796
Office: 865-974-8840
Cell: 865-406-1124
hsavoy@utk.edu
Oscar F. Ruiz Jr.
A&L Analytical Labs, Inc
2790 Whitten Rd
Memphis, TN 38133
Office: 901-213-2400
orviz@allabs.com

Texas

John Pitt
Texas Agri Life Extension Service Soil Water and Forage Testing Laboratory
Texas A&M University
2478 TAMU
College Station, TX 77843-2478
Office: 979-845-4816
Fax: 979-845-5958
jpitt@tamu.edu
Tony Provin
2478 TAMU
Texas Agri Life Extension Service - Soil & Crop Science Dept.
College Station, TX 77843-2478
Office: 979-862-4955
Fax: 979-845-5958
t-provin@tamu.edu
Mark Larson
Elementar Americas
520 Fellowship Rd
Suite D408
Mt Laurel, NJ 08054
Office: 856-787-0022, ext. 256
Wayne Weatherford
Soil Testing Lab
P. O. Box 13025
Stephen F. Austin State University
Nacogdoches, TX 75962
Office: 936-468-4500
Fax: 936-468-4047
wweatherford@sfasu.edu
Dr. Franta Majs, PhD
Assistant Professor of Soil Science
Director of the Soil, Plant and Water Analysis Laboratory
P. O. Box 13025
Stephen F. Austin State University
Nacogdoches, Texas 75962
Office: 936-468-4390
majsf@sfasu.edu

Virginia

Steve Heckendorn
Virginia Tech Soil Testing Lab
145 Smyth Hall (0465)
185 Ag Quad Ln
Blacksburg, VA 24061
Phone: 540-231-9807
soiltesting@vt.edu
Rory Maguire
Virginia Tech
Dept of Crop and Soil Environmental Sciences
424 Smyth Hall (0403)
Blacksburg, VA 24061
Office: 540-231-4383
Fax: 540-231-3075
Paruic McGroark
A&L Eastern Laboratories
7621 Whitepine Road
Richmond, VA 23237

USDA

Mervalin Morant
National Program Leader
USDA-CSREES-Natural Resources and Environment
1400 Independence Avenue, SW --STOP 2210
Phone: 202-401-6602
mmorant@csrees.usda.gov