Soil and Tissue Testing Laboratories
We provide this partial list of regional soil and tissue testing laboratories as a courtesy. We do not endorse any single lab. There are likely others available.
Be sure to contact the lab directly for tests available (e.g. Olsen rather than Bray P for calcareous soils), instructions for tissue sampling, and current prices. If they provide fertilizer recommendations, know which state’s guidelines they use to calculate fertilizer recommendations.
The North American Proficiency Testing Program (NAPT) lists participating labs at https://www.naptprogram.org/about/participants. Manure Analysis Proficiency (MAP) labs are listed by MN Dept. of Ag at http://www2.mda.state.mn.us/webapp/lis/maplabs.jsp. For Agriculture Laboratory Proficiency (ALP) certification ask the lab directly.
For more information on soil testing see the soil sampling page.
‘Y’ = yes, ‘N’ = no, ‘DK’ = ‘don’t know’.
|
Lab
|
NAPT
|
ALP
|
MAP
|
Use Mt guidelines
|
|---|---|---|---|---|
|
AgSource-Harris Laboratories 300 Speedway Cir. #2 Lincoln, NE 68502 (402) 476-0300 |
Y
|
Y
|
N
|
N
|
|
Y
|
Y
|
Y
|
Y/N
|
|
|
A & L Western Agricultural Laboratories 1311 Woodland Ave. #1 Modesto, CA 95351 (209) 529-4080 |
Y
|
N
|
Y
|
DK
|
|
N
|
DK
|
N
|
Y
|
|
|
Colorado State University Soil Water & Plant Testing Lab 4780 National Western Dr. Rm. T-316 Denver, CO 80216 (970) 491-5061 |
N
|
DK
|
Y
|
DK
|
|
Crop Lab Dennis Brosten P.O. Box 7813 Kalispell, MT 59904 (406) 212-4559 |
N
|
DK
|
N
|
Y
|
|
Y
|
DK
|
N
|
Y
|
|
|
Y
|
DK
|
N
|
Y
|
|
|
Y
|
DK
|
Y
|
Y
|
|
|
MN Valley Testing Laboratories, Inc. 1126 North Front St. New Ulm, MN 56073 (800) 782-3557 |
Y
|
DK
|
Y
|
DK
|
|
North Border Analytics, LLC 1301 Montana St. Chinook, MT 59523 (406) 344-0001 |
N
|
DK
|
N
|
Y
|
|
North Dakota State University Soil Testing Laboratory 1360 Bolley Dr. Fargo, ND 58108 (701) 231-8942 https://www.ndsu.edu/agriculture/academics/academic-units/plant-pathology/soil-testing-lab |
Y
|
DK
|
Y
|
DK
|
|
Soiltest Farm Consultants, Inc. 2925 Driggs Dr. Moses Lake, WA 98837 (509) 765-1622 |
N
|
DK
|
Y
|
Y
|
|
Stukenholtz Laboratory, Inc 2924 Addison Ave. E Twin Falls, ID 83303 (208) 734-3050 |
Y
|
DK
|
Y
|
DK
|
|
University of Idaho, Analytical Sciences Laboratory 2222 W Sixth St. Moscow, ID 83844 (208) 885-7900 |
Y
|
N
|
N
|
DK
|
|
Utah State University Analytical Lab 1541 N 800 E 9400 Old Main Hill Logan, UT 84322 (435) 797-2217 |
Y
|
DK
|
Y
|
DK
|
Tissue Testing Labs - check with above listed labs also.
Wallace Laboratories, El Segunda, CA. 310-615-0116. https://wlabs.com
List last updated May 2024.