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Soil testing tells you:
In most cases, you only need to run a soil test every 4-5 years. If
results are significantly out of range, you may need to recheck the soil
in only 1-2 years. Soil testing can help improve your soil’s ability to
grow grass or specific plants.
A "regular" soil test provides this information:
- pH level (acidity or alkalinity)
- organic matter percent
- recommendations for corrective treatment.
collect a soil sample |
- Select area you want to test. (It should be
- Take 6-12 cores from area to be tested. For
each core, sample to a 3-inch
depth on established lawns and to a 6-inch depth for all other
- Place all cores in a plastic pail.
- Remove live plant material.
- Mix collected cores and break up
- Air dry the soil sample overnight.
(Do not put soil in the microwave or oven!)
- Place about 2 cups of the dried soil in a
zip-locked plastic bag to submit for the test.
- Take soil sample to your local MU Extension
Where to submit a soil sample
in East Central Missouri
MU Extension offices in these East Central
Missouri counties accept soil samples. For office hours, directions and
costs, click on name of the county nearest you.
116 W. Main St., Union, MO 63084; 636-583-5141
301 3rd St., Hillsboro, MO 63050; 636-797-5391
880 West College St., Troy, MO 63379; 636-528-4613
310 Salisbury, Suite E, Montgomery City, MO 63361;
St. Charles County:
260 Brown Rd., St. Peters, MO 63376; 636-970-3000
County: 1 West Liberty, Suite 101, Farmington, MO 63640;
County: 255 Market St., Ste. Genevieve, MO 63670;
St. Louis County:
121 S. Meramec, Suite 501, Clayton, MO 63105; 314-615-2911
107 West Walton, Warrenton, MO 63383; 636-456-3444
113 N. Missouri, Suite A, Potosi, MO 63664; 573-438-2671
Results and recommendations:
Will be returned by mail
about 2 weeks after submitting the sample.
For more information: