Members & Certified Professionals: Log in to view email addresses of committee members
2026
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Past Chair, Nutrient Management & Soil & Plant Analysis Division
Kaiser, Daniel E.
Term: Jan 01, 2026 - Dec 31, 2026
439 Borlaug Hall
1991 Upper Buford Circle
St Paul MN 55108-6028 US
Tel: 612-624-3482
Send message to Daniel Kaiser
Member
Preston, Cristie L.
Term: Jan 01, 2026 - Dec 31, 2026
3824 SW 10th St
Columbus KS 66725 US
Tel: 620-429-5301
Send message to Cristie Preston
Chair, Nutrient Management & Soil & Plant Analysis Division
Rogers, Christopher W.
Term: Jan 01, 2026 - Dec 31, 2026
3793 N 3600 E
USDA-ARS Northwest Irrigation & Soil Lab
Kimberly ID 83341-5076 US
Tel: +1 (208) 420-3097
Send message to Christopher Rogers
Agricultural Soil and Food Systems Group SSSA Board Rep.
Howe, Julie A.
Term: Jan 01, 2025 - Dec 31, 2027
Tel: 979-321-5904
Send message to Julie Howe
Agricultural Soil and Food Systems Group SSSA Board Rep.
Ruiz Diaz, Dorivar A.
Term: Jan 01, 2024 - Dec 31, 2026
2711 Throckmorton Hall
Kansas State University
Manhattan KS 66506 US
Tel: 785-532-6183
Send message to Dorivar Ruiz Diaz
2025
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Chair, Nutrient Management & Soil & Plant Analysis Division
Kaiser, Daniel E.
Term: Jan 01, 2025 - Dec 31, 2025
439 Borlaug Hall
1991 Upper Buford Circle
St Paul MN 55108-6028 US
Tel: 612-624-3482
Send message to Daniel Kaiser
Past Chair, Nutrient Management & Soil & Plant Analysis Division
Tubana, Brenda S.
Term: Jan 01, 2025 - Dec 31, 2025
104 Sturgis Hall
Baton Rouge LA 70803-0001 US
Tel: 225-252-6025
Send message to Brenda Tubana
Member
Nathan, Manjula V.
Term: Jan 01, 2025 - Dec 31, 2025
University of Missouri
23 Mumford Hall
1100 University Avenue
Columbia MO 65211-0001 US
Tel: 573-882-3250
Send message to Manjula Nathan
Member
Preston, Cristie L.
Term: Jan 01, 2025 - Dec 31, 2025
3824 SW 10th St
Columbus KS 66725 US
Tel: 620-429-5301
Send message to Cristie Preston
Agricultural Soil and Food Systems Group SSSA Board Rep.
Howe, Julie A.
Term: Jan 01, 2025 - Dec 31, 2027
Tel: 979-321-5904
Send message to Julie Howe
Chair Elect, Nutrient Management & Soil & Plant Analysis Division
Rogers, Christopher W.
Term: Jan 01, 2025 - Dec 31, 2025
3793 N 3600 E
USDA-ARS Northwest Irrigation & Soil Lab
Kimberly ID 83341-5076 US
Tel: +1 (208) 420-3097
Send message to Christopher Rogers
Agricultural Soil and Food Systems Group SSSA Board Rep.
Ruiz Diaz, Dorivar A.
Term: Jan 01, 2024 - Dec 31, 2026
2711 Throckmorton Hall
Kansas State University
Manhattan KS 66506 US
Tel: 785-532-6183
Send message to Dorivar Ruiz Diaz
Agricultural Soil and Food Systems Group SSSA Board Rep.
Gollany, Hero T.
Term: Jan 01, 2023 - Dec 31, 2025
48037 Tubbs Ranch Rd
USDA-ARS-SWCR
Adams OR 97810-3057 US
Tel: +1 (541) 278-4410
Send message to Hero Gollany
2024
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Agricultural Soil and Food Systems Group SSSA Board Rep.
Ruiz Diaz, Dorivar A.
Term: Jan 01, 2024 - Dec 31, 2026
2711 Throckmorton Hall
Kansas State University
Manhattan KS 66506 US
Tel: 785-532-6183
Send message to Dorivar Ruiz Diaz
Chair
Tubana, Brenda S.
Term: Jan 01, 2024 - Dec 31, 2024
104 Sturgis Hall
Baton Rouge LA 70803-0001 US
Tel: 225-252-6025
Send message to Brenda Tubana
Chair Elect, Nutrient Management & Soil & Plant Analysis Division
Kaiser, Daniel E.
Term: Jan 01, 2024 - Dec 31, 2024
439 Borlaug Hall
1991 Upper Buford Circle
St Paul MN 55108-6028 US
Tel: 612-624-3482
Send message to Daniel Kaiser
Past Chair, Nutrient Management & Soil & Plant Analysis Division
Preston, Cristie L.
Term: Jan 01, 2024 - Dec 31, 2024
3824 SW 10th St
Columbus KS 66725 US
Tel: 620-429-5301
Send message to Cristie Preston
Member
Nathan, Manjula V.
Term: Jan 01, 2024 - Dec 31, 2024
University of Missouri
23 Mumford Hall
1100 University Avenue
Columbia MO 65211-0001 US
Tel: 573-882-3250
Send message to Manjula Nathan
Member
Ruark, Matthew D.
Term: Jan 01, 2024 - Dec 31, 2024
824 Westover Circle
SUN PRAIRIE WI 53590 US
Send message to Matthew Ruark
Agricultural Soil and Food Systems Group SSSA Board Rep.
Gollany, Hero T.
Term: Jan 01, 2023 - Dec 31, 2025
48037 Tubbs Ranch Rd
USDA-ARS-SWCR
Adams OR 97810-3057 US
Tel: +1 (541) 278-4410
Send message to Hero Gollany
Agricultural Soil and Food Systems Group SSSA Board Rep.
Mikha, Maysoon M.
Term: Jan 01, 2022 - Dec 31, 2024
40335 County Road Gg
Akron CO 80720-9471 US
Tel: +1 (970) 345-2259
Send message to Maysoon Mikha
2023
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Agricultural Soil and Food Systems Group SSSA Board Rep.
Gollany, Hero T.
Term: Jan 01, 2023 - Dec 31, 2025
48037 Tubbs Ranch Rd
USDA-ARS-SWCR
Adams OR 97810-3057 US
Tel: +1 (541) 278-4410
Send message to Hero Gollany
Chair, Nutrient Management & Soil & Plant Analysis Division
Preston, Cristie L.
Term: Jan 01, 2023 - Dec 31, 2023
3824 SW 10th St
Columbus KS 66725 US
Tel: 620-429-5301
Send message to Cristie Preston
Chair Elect, Nutrient Management & Soil & Plant Analysis Division
Tubana, Brenda S.
Term: Jan 01, 2023 - Dec 31, 2023
104 Sturgis Hall
Baton Rouge LA 70803-0001 US
Tel: 225-252-6025
Send message to Brenda Tubana
Past Chair, Nutrient Management & Soil & Plant Analysis Division
Nathan, Manjula V.
Term: Jan 01, 2023 - Dec 31, 2023
University of Missouri
23 Mumford Hall
1100 University Avenue
Columbia MO 65211-0001 US
Tel: 573-882-3250
Send message to Manjula Nathan
Member
Ruark, Matthew D.
Term: Jan 01, 2023 - Dec 31, 2023
824 Westover Circle
SUN PRAIRIE WI 53590 US
Send message to Matthew Ruark
Member
Tindall, Terry A.
Term: Jan 01, 2023 - Dec 31, 2023
2262 S Petra Ave
Boise ID 83709-2506 US
Tel: 208-867-2547
Send message to Terry Tindall
Agricultural Soil and Food Systems Group SSSA Board Rep.
Mikha, Maysoon M.
Term: Jan 01, 2022 - Dec 31, 2024
40335 County Road Gg
Akron CO 80720-9471 US
Tel: +1 (970) 345-2259
Send message to Maysoon Mikha
Agricultural Soil and Food Systems Group SSSA Board Rep.
Johnson, Jane
Term: Jan 01, 2021 - Dec 31, 2023
803 Iowa Ave
Morris MN 56267-1065 US
Tel: +1 (320) 589-3411
Send message to Jane Johnson
2022
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Agricultural Soil and Food Systems Group SSSA Board Rep.
Mikha, Maysoon M.
Term: Jan 01, 2022 - Dec 31, 2024
40335 County Road Gg
Akron CO 80720-9471 US
Tel: +1 (970) 345-2259
Send message to Maysoon Mikha
Chair, Nutrient Management & Soil & Plant Analysis Division
Nathan, Manjula V.
Term: Jan 01, 2022 - Dec 31, 2022
University of Missouri
23 Mumford Hall
1100 University Avenue
Columbia MO 65211-0001 US
Tel: 573-882-3250
Send message to Manjula Nathan
Chair Elect, Nutrient Management & Soil & Plant Analysis Division
Preston, Cristie L.
Term: Jan 01, 2022 - Dec 31, 2022
3824 SW 10th St
Columbus KS 66725 US
Tel: 620-429-5301
Send message to Cristie Preston
Past Chair, Nutrient Management & Soil & Plant Analysis Division
Ruark, Matthew D.
Term: Jan 01, 2022 - Dec 31, 2022
824 Westover Circle
SUN PRAIRIE WI 53590 US
Send message to Matthew Ruark
Member
Nelson, Kelly A.
Term: Jan 01, 2022 - Dec 31, 2022
Greenley Research Center
P.O. Box 126
Novelty MO 63460 US
Tel: 660-739-4410
Send message to Kelly Nelson
Member
Tindall, Terry A.
Term: Jan 01, 2022 - Dec 31, 2022
2262 S Petra Ave
Boise ID 83709-2506 US
Tel: 208-867-2547
Send message to Terry Tindall
Agricultural Soil and Food Systems Group SSSA Board Rep.
Johnson, Jane
Term: Jan 01, 2021 - Dec 31, 2023
803 Iowa Ave
Morris MN 56267-1065 US
Tel: +1 (320) 589-3411
Send message to Jane Johnson
Agricultural Soil and Food Systems Group SSSA Board Rep.
Grove, John H.
Term: May 14, 2020 - Dec 31, 2022
348 University Dr
UK Research and Education Center
Princeton KY 42445-7801 US
Tel: +1 (859) 333-8262
Send message to John Grove
2021
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Chair, Nutrient Management & Soil & Plant Analysis Division
Ruark, Matthew D.
Term: Jan 01, 2021 - Dec 31, 2021
824 Westover Circle
SUN PRAIRIE WI 53590 US
Send message to Matthew Ruark
Chair Elect, Nutrient Management & Soil & Plant Analysis Division
Nathan, Manjula V.
Term: Jan 01, 2021 - Dec 31, 2021
University of Missouri
23 Mumford Hall
1100 University Avenue
Columbia MO 65211-0001 US
Tel: 573-882-3250
Send message to Manjula Nathan
Past Chair, Nutrient Management & Soil & Plant Analysis Division
Tindall, Terry A.
Term: Jan 01, 2021 - Dec 31, 2021
2262 S Petra Ave
Boise ID 83709-2506 US
Tel: 208-867-2547
Send message to Terry Tindall
Member
Nelson, Kelly A.
Term: Jan 01, 2021 - Dec 31, 2021
Greenley Research Center
P.O. Box 126
Novelty MO 63460 US
Tel: 660-739-4410
Send message to Kelly Nelson
Agricultural Soil and Food Systems Group SSSA Board Rep.
Johnson, Jane
Term: Jan 01, 2021 - Dec 31, 2023
803 Iowa Ave
Morris MN 56267-1065 US
Tel: +1 (320) 589-3411
Send message to Jane Johnson
Agricultural Soil and Food Systems Group SSSA Board Rep.
Grove, John H.
Term: May 14, 2020 - Dec 31, 2022
348 University Dr
UK Research and Education Center
Princeton KY 42445-7801 US
Tel: +1 (859) 333-8262
Send message to John Grove
Agricultural Soil and Food Systems Group SSSA Board Rep.
Laboski, Carrie A.M.
Term: Jan 01, 2019 - Dec 31, 2021
532 Curtin Rd
USDA-ARS
University Park PA 16802-4517 US
Tel: 814-574-5349
Send message to Carrie Laboski
2020
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Agricultural Soil and Food Systems Group SSSA Board Rep.
Grove, John H.
Term: May 14, 2020 - Dec 31, 2022
348 University Dr
UK Research and Education Center
Princeton KY 42445-7801 US
Tel: +1 (859) 333-8262
Send message to John Grove
Chair, Nutrient Management & Soil & Plant Analysis Division
Tindall, Terry A.
Term: Jan 01, 2020 - Dec 31, 2020
2262 S Petra Ave
Boise ID 83709-2506 US
Tel: 208-867-2547
Send message to Terry Tindall
Chair Elect, Nutrient Management & Soil & Plant Analysis Division
Ruark, Matthew D.
Term: Jan 01, 2020 - Dec 31, 2020
824 Westover Circle
SUN PRAIRIE WI 53590 US
Send message to Matthew Ruark
Past Chair, Nutrient Management & Soil & Plant Analysis Division
Nelson, Kelly A.
Term: Jan 01, 2020 - Dec 31, 2020
Greenley Research Center
P.O. Box 126
Novelty MO 63460 US
Tel: 660-739-4410
Send message to Kelly Nelson
Agricultural Soil and Food Systems Group SSSA Board Rep.
Clay, David E.
Term: Jan 01, 2020 - May 13, 2020
South Dakota State University
Agronomy, Horticulture, and Plant Sci. Dept
110 Raven Precision Farming Center
Brookings SD 57007-0001 US
Tel: 605-688-5081
Send message to David Clay
Agricultural Soil and Food Systems Group SSSA Board Rep.
Laboski, Carrie A.M.
Term: Jan 01, 2019 - Dec 31, 2021
532 Curtin Rd
USDA-ARS
University Park PA 16802-4517 US
Tel: 814-574-5349
Send message to Carrie Laboski
Agricultural Soil and Food Systems Group SSSA Board Rep.
Franzluebbers, Alan J.
Term: Jan 01, 2018 - Dec 31, 2020
USDA-ARS
101 Derieux Place
NCSU Campus Box 7620
Raleigh NC 27695 US
Tel: 919-515-1973
Send message to Alan Franzluebbers
2019
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Agricultural Soil and Food Systems Group SSSA Board Rep.
Laboski, Carrie A.M.
Term: Jan 01, 2019 - Dec 31, 2021
532 Curtin Rd
USDA-ARS
University Park PA 16802-4517 US
Tel: 814-574-5349
Send message to Carrie Laboski
Chair, Nutrient Management & Soil & Plant Analysis Division
Nelson, Kelly A.
Term: Jan 01, 2019 - Dec 31, 2019
Greenley Research Center
P.O. Box 126
Novelty MO 63460 US
Tel: 660-739-4410
Send message to Kelly Nelson
Chair Elect, Nutrient Management & Soil & Plant Analysis Division
Tindall, Terry A.
Term: Jan 01, 2019 - Dec 31, 2019
2262 S Petra Ave
Boise ID 83709-2506 US
Tel: 208-867-2547
Send message to Terry Tindall
Past Chair, Nutrient Management & Soil & Plant Analysis Division
Freeman, Kyle W.
Term: Jan 01, 2019 - Dec 31, 2019
235 Lake St E Ste 202
OCP North America
Wayzata MN 55391-1685 US
Tel: 612-439-1579
Send message to Kyle Freeman
Agricultural Soil and Food Systems Group SSSA Board Rep.
Franzluebbers, Alan J.
Term: Jan 01, 2018 - Dec 31, 2020
USDA-ARS
101 Derieux Place
NCSU Campus Box 7620
Raleigh NC 27695 US
Tel: 919-515-1973
Send message to Alan Franzluebbers
Chair, Nutrient Management & Soil & Plant Analysis Division
Freeman, Kyle W.
Term: Jan 01, 2018 - Jan 31, 2019
235 Lake St E Ste 202
OCP North America
Wayzata MN 55391-1685 US
Tel: 612-439-1579
Send message to Kyle Freeman
Agricultural Soil and Food Systems Group SSSA Board Rep.
Grove, John H.
Term: Jan 01, 2017 - Dec 31, 2019
348 University Dr
UK Research and Education Center
Princeton KY 42445-7801 US
Tel: +1 (859) 333-8262
Send message to John Grove
2018
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Agricultural Soil and Food Systems Group SSSA Board Rep.
Franzluebbers, Alan J.
Term: Jan 01, 2018 - Dec 31, 2020
USDA-ARS
101 Derieux Place
NCSU Campus Box 7620
Raleigh NC 27695 US
Tel: 919-515-1973
Send message to Alan Franzluebbers
Chair, Nutrient Management & Soil & Plant Analysis Division
Freeman, Kyle W.
Term: Jan 01, 2018 - Jan 31, 2019
235 Lake St E Ste 202
OCP North America
Wayzata MN 55391-1685 US
Tel: 612-439-1579
Send message to Kyle Freeman
Chair Elect, Nutrient Management & Soil & Plant Analysis Division
Nelson, Kelly A.
Term: Jan 01, 2018 - Dec 31, 2018
Greenley Research Center
P.O. Box 126
Novelty MO 63460 US
Tel: 660-739-4410
Send message to Kelly Nelson
Past Chair, Nutrient Management & Soil & Plant Analysis Division
Mylavarapu, Rao S.
Term: Jan 01, 2018 - Dec 31, 2018
Soil & Water Sciences Dept
Box 110290, 171 McCarty Hall
Gainesville FL 32611-0290 US
Tel: 352-294-3113
Send message to Rao Mylavarapu
Agricultural Soil and Food Systems Group SSSA Board Rep.
Grove, John H.
Term: Jan 01, 2017 - Dec 31, 2019
348 University Dr
UK Research and Education Center
Princeton KY 42445-7801 US
Tel: +1 (859) 333-8262
Send message to John Grove
Agricultural Soil and Food Systems Group SSSA Board Rep.
Ferguson, Richard B.
Term: Jan 01, 2016 - Dec 31, 2018
1875 N 38th St
Dept. of Agronomy & Horticulture
Lincoln NE 68588-1509 US
Tel: +1 (402) 472-2811
Send message to Richard Ferguson
2017
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Agricultural Soil and Food Systems Group SSSA Board Rep.
Grove, John H.
Term: Jan 01, 2017 - Dec 31, 2019
348 University Dr
UK Research and Education Center
Princeton KY 42445-7801 US
Tel: +1 (859) 333-8262
Send message to John Grove
Chair, Nutrient Management & Soil & Plant Analysis Division
Mylavarapu, Rao S.
Term: Jan 01, 2017 - Dec 31, 2017
Soil & Water Sciences Dept
Box 110290, 171 McCarty Hall
Gainesville FL 32611-0290 US
Tel: 352-294-3113
Send message to Rao Mylavarapu
Chair Elect, Nutrient Management & Soil & Plant Analysis Division
Freeman, Kyle W.
Term: Jan 01, 2017 - Dec 31, 2017
235 Lake St E Ste 202
OCP North America
Wayzata MN 55391-1685 US
Tel: 612-439-1579
Send message to Kyle Freeman
Past Chair, Nutrient Management & Soil & Plant Analysis Division
Schwab, Gregory J.
Term: Jan 01, 2017 - Dec 31, 2017
9256 N Hydraulic St
Valley Center, KS
9256 N. Hydraulic St
Valley Center KS 67147-8497 US
Tel: 316-880-1103
Send message to Gregory Schwab
Member, Ex Officio
Mylavarapu, Rao S.
Term: Jan 01, 2017 - Dec 31, 2017
Soil & Water Sciences Dept
Box 110290, 171 McCarty Hall
Gainesville FL 32611-0290 US
Tel: 352-294-3113
Send message to Rao Mylavarapu
Agricultural Soil and Food Systems Group SSSA Board Rep.
Ferguson, Richard B.
Term: Jan 01, 2016 - Dec 31, 2018
1875 N 38th St
Dept. of Agronomy & Horticulture
Lincoln NE 68588-1509 US
Tel: +1 (402) 472-2811
Send message to Richard Ferguson
2016
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Agricultural Soil and Food Systems Group SSSA Board Rep.
Ferguson, Richard B.
Term: Jan 01, 2016 - Dec 31, 2018
1875 N 38th St
Dept. of Agronomy & Horticulture
Lincoln NE 68588-1509 US
Tel: +1 (402) 472-2811
Send message to Richard Ferguson
Chair, Nutrient Management & Soil & Plant Analysis Division
Schwab, Gregory J.
Term: Jan 01, 2016 - Dec 31, 2016
9256 N Hydraulic St
Valley Center, KS
9256 N. Hydraulic St
Valley Center KS 67147-8497 US
Tel: 316-880-1103
Send message to Gregory Schwab
Chair Elect, Nutrient Management & Soil & Plant Analysis Division
Mylavarapu, Rao S.
Term: Jan 01, 2016 - Dec 31, 2016
Soil & Water Sciences Dept
Box 110290, 171 McCarty Hall
Gainesville FL 32611-0290 US
Tel: 352-294-3113
Send message to Rao Mylavarapu
Past Chair
McGrath, Joshua M.
Term: Jan 01, 2016 - Dec 31, 2016
5601 Sunnyside Ave
Beltsville MD 20705-5000 US
Send message to Joshua McGrath
2015
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Chair
McGrath, Joshua M.
Term: Jan 01, 2015 - Dec 31, 2015
5601 Sunnyside Ave
Beltsville MD 20705-5000 US
Send message to Joshua McGrath
Chair Elect, Nutrient Management & Soil & Plant Analysis Division
Schwab, Gregory J.
Term: Jan 01, 2015 - Dec 31, 2015
9256 N Hydraulic St
Valley Center, KS
9256 N. Hydraulic St
Valley Center KS 67147-8497 US
Tel: 316-880-1103
Send message to Gregory Schwab
Past Chair
Mullen, Robert W.
Term: Jan 01, 2015 - Dec 31, 2015
944 Country Club Dr
Wooster OH 44691-1410 US
Tel: 937-631-1277
Send message to Robert Mullen
2014
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Chair
Mullen, Robert W.
Term: Jan 01, 2014 - Dec 31, 2014
944 Country Club Dr
Wooster OH 44691-1410 US
Tel: 937-631-1277
Send message to Robert Mullen
Chair-Elect
McGrath, Joshua M.
Term: Jan 01, 2014 - Dec 31, 2014
5601 Sunnyside Ave
Beltsville MD 20705-5000 US
Send message to Joshua McGrath
Past Chair
Miller, Robert O.
Term: Jan 01, 2014 - Dec 31, 2014
347 N Shore Cir
Windsor CO 80550-2614 US
Tel: 970-686-5702
Send message to Robert Miller
2013
S - Nutrient Management and Soil and Plant Analysis Division - Officers
Chair
Miller, Robert O.
Term: Jan 01, 2013 - Dec 31, 2013
347 N Shore Cir
Windsor CO 80550-2614 US
Tel: 970-686-5702
Send message to Robert Miller
Chair-Elect
Mullen, Robert W.
Term: Jan 01, 2013 - Dec 31, 2013
944 Country Club Dr
Wooster OH 44691-1410 US
Tel: 937-631-1277
Send message to Robert Mullen
Chair-Elect
Mullen, Robert W.
Term: Jan 01, 2013 - Dec 31, 2013
944 Country Club Dr
Wooster OH 44691-1410 US
Tel: 937-631-1277
Send message to Robert Mullen