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. A ‘Y’ in the column means ‘Yes’, ‘N’ means ‘no’, ‘DK’ means we 'don't know'.
For more information on soil testing see the soil sampling page.
This list is also available a two-page printable soil lab PDF.
|
Lab
|
NAPT
|
ALP
|
MAP
|
Use Mt guidelines
|
|---|---|---|---|---|
|
AgSource-Harris Laboratories 300 Speedway Circle Lincoln NE 68502 402-476-0300 |
Y
|
Y
|
Y
|
N
|
|
Y
|
Y
|
Y
|
Y/N
|
|
|
DK
|
DK
|
DK
|
Y
|
|
|
Colorado State University Soil Water& Plant Testing Lab 200 W Lake St, Campus Delivery 1120 Fort Collins CO 80523-1120 970-491-5061 |
Y
|
DK
|
Y
|
DK
|
|
Energy Laboratories, Inc. 1120 South 27th St. Billings MT 59101 406-252-6325, 800-735-4489 |
Y
|
DK
|
DK
|
Y
|
|
Energy Laboratories, Inc. 3161 Lyndale Ave. Helena MT 59601 406-442-0711, 877-472-0711 |
Y
|
DK
|
DK
|
Y
|
|
Y
|
DK
|
Y
|
Y
|
|
|
DK
|
DK
|
Y
|
DK
|
|
|
North Dakota State University Soil Testing Laboratory 1360 Bolley Dr. Fargo ND 58108 701-231-8942 |
Y
|
DK
|
Y
|
DK
|
|
Soiltest Farm Consultants, Inc. 2925 Driggs Drive Moses Lake WA 98837 509-765-1622, 800-764-1622 |
Y
|
DK
|
Y
|
Y
|
|
Stukenholtz Laboratory, Inc 2924 Addison Avenue East Twin Falls ID 83303 208-734-3050, 800-759-3050 |
Y
|
DK
|
Y
|
DK
|
|
University of Idaho, Analytical Sciences Laboratory 2222 W. Sixth St. Moscow ID 83844-2203 208-885-7900 |
Y
|
N
|
N
|
DK
|
|
Utah State University Analytical Lab 9400 Old Main Hall Logan UT 84322-4830 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
Posted May 2019