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Soil Fertility

Please choose from an option on tabs to the left.

Soil Sampling Instructions

Soil Submission Sheet – The sample ID is the name you give the samples so you know where they came from.

Heavy Metal screening

Shipping tips

Sample boxes can be picked up at your local county UT Extension office​. You can also fill a sturdy quart plastic bag to submit soil samples

Results will be e-mailed within 3 to 5 business days. If you do not hear from us after the 5th business day, please contact us.

Helpful tips:

  • The sample ID is what you wish to name the sample for your records.
  • The organic matter, soluble salt, or texture measurements will not affect the fertilizer recommendations.
  • For raised beds, compost, potting media, bark, or peat-based mixes, or soils with >50% organic matter please see greenhouse or potting media test​.

Weed Control – Please visit UT Department of Plant Sciences website.

Lawn and Turfgrass Establishment and Maintenance – UT Department of Plant Sciences: Turfgrass Science and Management’s articles on turfgrass maintenance or turfgrass establishment.

Home Garden – Please visit UT Department of Plant Science: Residential and Consumer Horticulture articles on VegetablesInsects, Diseases and WeedsShrubs and TreesStewardship​.

Your soil test information is accessible by using the email address provided when samples were submitted. Please create an account on the SPPC website in order to access reports (if you have not already done so).

Sampling instructions

Field Soil Submission Sheet​​​ – The sample ID is the name you give the samples so you know where they came from.

Shipping sample tips

Sample boxes can be picked up at your local county UT Extension office​. You can also fill a sturdy quart plastic bag to submit soil samples.

Results will be mailed and e-mailed within 3 to 5 business days. If you do not hear from us after the 5th day, please contact us.

Fees can also be paid by credit card using the secure UT Institute of Agriculture eMarketplace site.

Helpful tips:

  • The sample ID is what you wish to name the sample for your records.
  • The organic matter, soluble salt, or texture measurements will not affect the fertilizer recommendatons.
  • Sulfur recommendations are based on soil type, management, and crop to be grown (not based off the sulfur test value).

Accessing Soil Test Results Online:

Your soil test information is accessible by using the email address provided when samples were submitted. After you receive your first results by email you may create an account on the SPPC website in order to access reports.

Container Media Test:
 
Used for nursery mixes and raised bed gardens with minimal soil from the ground used.

Greenhouse or potting media submission sheet


This test is mainly useful to nutrient levels of mineral-less mixtures.  The test is $35 per sample.

Please send half a gallon of potting media for the analysis.​

Bio-pond testing is a provisional method used by Metro Nashville to grade engineered soils for bio-ponds.

Ask your engineer or municipal inspector on how to sample as sampling depth and procedure can vary by job or contract.

This test provides the amount of soil that passes through a 2mm sieve and of the percent passing the 2mm sieve: organic content, sand, silt, and clay.

Soils with hard clay balls will have less passing the 2mm sieve as they act as rocks when dried, and do not break apart well.

Mulch may pass through the 2mm sieve as it will get ground, causing a bump in the reported organic matter content in the less than 2mm fraction.