Notice: The MSU Soil and Plant Nutrient Laboratory (SPNL) has ceased operation on December 31, 2022. The information contained on this site is only for informational purposes only.

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Soil and Plant Nutrient Laboratory



The MSU Soil and Plant Nutrient Laboratory (SPNL) will cease operation on December 31, 2022.  Management and staff of the SPNL wish to thank our customers over the years for trusting us with their soil testing needs. If mailing soil samples to the lab, send them by October 1st, 2022.  Last day for walk-in soil drop-off is November 18th, 2022.  

The Soil and Plant Nutrient lab continues to operate as normal during this time and results are going out within 10 days of receipt.


Samples can be mailed in ziplock bags direct to the lab, or after October 1st can be dropped off at the lab.  Print off the information sheet from the website to accompany the samples along with a check made out to MSU for the correct amount from the fee schedule.  Further information about soil testing options will be forthcoming.

MSU Soil and Plant Nutrient Laboratory (SPNL) operates as an integral part of Michigan State University providing support to teaching, research and extension programs. The SPNL offers a variety of analytical services on samples of soil, greenhouse growth media, composts, plant tissue, water and other materials related to the growing of plants (crops) received from commercial and part-time farmers, greenhouse operations, golf courses, homeowners, consultants, researchers, and others.

Many county extension operations use soil and plant tissue testing as the foundation for extension programs with their various clientele groups. Researchers in many departments within MSU and other universities have the SPNL analyze soil, plant and water samples as part of their research programs.

The SPNL reaches out to the general public through educational displays and presentations at expositions, conferences and meetings of organizations. Numerous groups tour the SPNL facilities throughout the year. Educational presentations and tours of the SPNL are part of five courses taught in the department of Horticulture and Department of Plant, Soil and Microbial Sciences.

Soil Test for Field / Crop

Soil Test for Home Lawn / Garden