LastFirstInstitutionTitleEmailState
AdoteyNutifafaUniversity of TennesseeAssistant Professor and Soil and Nutrient Management Specialistnadotey@utk.edu
TN
AlfordShannonClemson UniversityDirector Agricultural Service Laboratory sralfor@clemson.edu
SC
ArnallBrianOklahoma State UniversityProfessorb.arnall@okstate.edu
OK
ArthurDanUSDA-ARSEcoinformaticist, Project Technical Coordinator
dan.arthur@usda.gov
Ashford-KornburgerDanaUSDA-FSADirector, FSA Conservation Division 
dana.ashford@usda.gov
BeegleDougPenn State UniversityEmeritus Distinguished Professor of Agronomy
dbb@psu.edu
PA
BolsterCarlUSDA-ARSResearch Hydrologist
carl.bolster@usda.gov
BrouderSylviePurdue UniversityProfessor of Agronomy
sbrouder@purdue.edu
IN
BruulsemaTomPlant Nutrition CanadaChief Scientist
tom.bruulsema@plantnutrition.ca
Canada
BuserMichaelUSDA-ARSNational Program Leader 
michael.buser@usda.gov
CabreraMiguelUniversity of GeorgiaProfessor Soil Science
mcabrera@uga.edu
GA
ClarkJasonSouth Dakota State UniveristyAssistant Professor and Extension Specialist
Jason.D.Clark@sdstate.edu
SD
CulmanSteveOhio State UniversityAssistant Professor and State Specialist Soil Fertility
culman.2@osu.edu
OH
DhillonJagmanMississippi State UniversityAssistant Professor of Agronomy
jsd369@msstate.edu
MS
EveMarlenUSDA-ARSDepartment Administrator
marlen.eve@usda.gov
FarmahaBhupinderClemson UniversityAssistant Professor Nutrient Management Specialist Agronomic Crops
bfarmah@clemson.edu
SC
FaulknerJoshuaUniversity of VermontResearch Assistant Professor and Farming and Climate Change Program Coordinatorjoshua.faulkner@uvm.edu
VT
FlorenceRobertUniversity of TennesseeLab Director
rfloren2@utk.edu
TN
FlynnRobertNew Mexico State UniveristyInterim Superintendent/Extension Agronomist 
rflynn@nmsu.edu
NM
GatiboniLukeNorth Carolina State UniversityAssistant Professor and Extension Specialist Soil Fertility
luke_gatiboni@ncsu.edu
NC
GeisselerDanielUniversity of California, DavisAssistant Specialist
djgeisseler@ucdavis.edu
CA
GroveJohnUniversity of KentuckyProfessor
jgrove@uky.edu
KY
HardyDavidNC Department of Agriculture and Consumer ServicesDirector Soil Testing Lab
david.hardy@ncagr.gov
NC
HarmelDarrenUSDA-ARSCenter Director
daren.harmel@usda.gov
HeckmanJosephRutgers UniversityProfessor of Soil Science
jheckman@njaes.rutgers.edu
NJ
HobenJohnEast Carolina UniversityResearch Assistant Professorhobenj19@ecu.eduNC
HopkinsBryanBrigham Young UniversityProfessor
hopkins@byu.edu
UT
HulukaGobenaAuburn UniversityAssociate Professor
hulukgo@auburn.edu
AL
IqbalJavedUniversity of NebraskaAssistant Professor
javed.iqbal@unl.edu
NE
JagadammaSindhuUniversity of TennesseeAssistant Professor Biosystems Engineering and Soil Sciences
sjagada1@utk.edu
TN
JonesClainMontana State UniversityProfessor Soil Fertility
clainj@montana.edu
MT
JonesJohnUniversity of WisconsinPostdoc
jjones58@wisc.edu
WI
KetteringsQuirineCornell UniversityProfessor
qmk2@cornell.edu
NY
KleinmanPeterUSDA-ARSResearch Leader of the Pasture Systems and Watershed Management Research Unit 
peter.kleinman@usda.gov
LaHueGabeWashington State UniversityClinical/Research Assistant Professor of Soil Sciencegabriel.lahue@wsu.edu
WA
LesselJayUniversity of GeorgiaProgram Coordinator Agricultural & Environmental Services Lab
jlessl@uga.edu
GA
LyonsSarahNorth Carolina State UniversityPostdoctoral Research Scholar
selyons@ncsu.edu
NC
MaguireRoryVirginia Tech UniversityProfessor
rmaguire@vt.edu
VA
MargenotAndrewUniversity of Illinois, Urgana-ChampaignAssistant Professor
margenot@illinois.edu
IL
McGrathJoshuaUniversity of KentuckyExtension Associate Professor
josh.mcgrath@uky.edu
KY
MengelDave Kansas State UniversityEmeritus Professor
dmengel@ksu.edu
KS
MillerRobertColorado State UniversityAgricultural Laboratory Proficiency Program Technical Director 
Robert.Miller@CTS-interlab.com
CO
MooreAmberOregon State UniversityAssistant Professor and Soil Fertility Specialist
amber.moore@oregonstate.edu
OR
MorrisTomUniversity of ConnecticutProfessor Emeritus
thomas.morris@uconn.edu
CT
MowrerJakeTexas A&M UniversityAssistant Professor and Extension Specialist
jake.mowrer@tamu.edu
TX
MurphyStephanieRutgers UniversityDirector. Soil Testing Laboratory
slmurphy@njaes.rutgers.edu
NJ
MylvarapuRaoUniversity of FloridaProfessor of Soil and Nutrient Management, 
raom@ufl.edu
FL
NelsonKellyUniversity of MissouriProfessor, Plant SciencesNelsonKe@missouri.edu
MO
NelsonNathanKansas State UniversityProfessor of Soil and Nutrient Management
nonelson@ksu.edu
KS
NortonJayUniversity of WyomingAssociate Professor
Extension Soils Specialist
Director, UWyo Soil Resource Laboratory
jnorton4@uwyo.eduWY
Oldham LarryMississippi State UniversityExtension Professor
larry.oldham@msstate.edu
MS
OsmondDeannaNorth Carolina State UniversityProfessor and Extension Specialist
deanna_osmond@ncsu.edu
NC
ParvejRaselLouisiana State UniversityAssistant Professor
MRParvej@agcenter.lsu.edu
LA
PearceAustinNC State UniversityPostdoctoral Research Scholar
awpearc2@ncsu.edu
NC
PilkowskiTimUSDA-NRCSNational Nutrient Management Specialisttim.pilkowski@usda.gov
Pena-YewtukhiwEugeniaWest Virginia UniversityAssociate Professor of Soil Science
Eugenia.Pena-yewtukhiw@mail.wvu.ed
WV
PrasadRishiAuburn UniversityExtension Specialist & Assistant Professor
rzp0050@auburn.edu
AL
ProvinTonyTexas A&M UniversityProfessor and Extension Specialist
t-provin@tamu.edu
TX
RayburnEdWest Virginia UniversityPasture and Forage SpecialisEd.Rayburn@mail.wvu.edu
WV
ReiterMarkVirginia TechAssociate Professor Soils and Nutrient Managementmreiter@vt.edu
VA
RitcheyEdwinUniversity of KentuckyAssociate Extension Specialistedwin.ritchey@uky.edu
KY
SadehpourAmirSouthern Illinois UniversityAssistant Professor Plant, Soil and Agricultural Systemsamir.sadeghpour@siu.edu
IL
SavoyHubertUniversity of TennesseeRetiredhsavoy@utk.edu
TN
ShapiroCharlieUniversity of NebraskaRetiredcshapiro@unl.edu

NE
SharmaLakeshUniversity of FloridaAssistant Professor Soil Fertility and Sustainable Agriculturelakesh.sharma@ufl.edu

FL
SharpleyAndrewUniversity of ArkansasDistinguished Professor of Soils and Water Qualitysharpley@uark.edu

AR
ShoberAmyUniversity of DelawareProfessor and Extension Specialistashober@udel.edu

DE
SikoraFrankUniversity of KentuckyAdjunct Associate Professor Director of Laboratories and Soils Programfrank.sikora@uky.edu

KY
SintimHenryUniversity of GeorgiaProfessorhsintim@uga.edu
SlatonNathanUniversity of ArkansasDirector Experiment Station nslaton@uark.edu

AR
SotomayorDavidUniversity of Puerto RicoProfessordavid.sotomayor@upr.edu

Puerto Rico
SpackmanJaredUniversity of IdahoAssistant Professor Barley Agronomy Research and Extension Specialistjspackman@uidaho.edu
ID
SpargoJohnPenn State UniversityDirector Agricultural Analytical Services Labjts29@psu.edu

PA
SurfaceJanUSDA-NRCSNational Water Quality Specialist/Aquatic Ecologistjan.surface@usda.gov

USDA
TaoHaiyingUniversity of ConnecticutAssistant Professor of Soil Nutrient Management and Soil Health, Plant Science and Landscape Architecturehaiying.tao@uconn.edu

CT
TarkalsonDavidUSDA-ARSResearch Soil Scientistdavid.tarkalson@usda.gov
ToorGurpalUniversity of Maryland Professor & Extension Specialist of Nutrient Management and Water Qualitygstoor@umd.edu

MD
TsegayeTeferiUSDA-ARSNational Program Leader Natural Resources and Sustainable Agricultural Systems teferi.tsegaye@usda.gov 

VandenbergBruceUSDA-ARSInformation Technology Specialistbruce.vandenberg@usda.gov 

VolenecJeffPurdue UniversityProfessor of Agronomyjvolenec@purdue.edu 

IN
WalkerForbesUniversity of TennesseeAssociate Professor Biosystems Engineering and Soil Sciencefrwalker@utk.edu

TN
WangJimLouisiana State UniversityProfessorJJWang@agcenter.lsu.edu

LA
WesterPaulUSDA-National Ag LibraryDirector National Ag Librarypaul.wester@usda.gov

WhiteCharliePenn State UniversityAssistant Professor and Extension Specialistcmw29@psu.edu

PA
YinFrankUniversity of TennesseeAssociate Professor Agronomyxyin2@utk.edu

TN
YostMattUtah State UniversityAssistant Professor of Agriculturematt.yost@usu.eduUT
ZhangHailinOklahoma State UniversityRegent Professor & Director of Soil Water and Forage Analytical Laboratoryhailin.zhang@okstate.edu

OK