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Soil Testing Lab

Soil Testing Lab

Soil, Water and Forage Testing Laboratory

  • Soil Testing
  • Water Testing
  • Forage and Plant Tissue Testing
  • FAQs
  • Contact the Soil, Water and Forage Testing Laboratory
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Photo of the outside of the soil testing lab

Texas A&M AgriLife Extension

Soil, Water and Forage Testing Laboratory

About the lab

The Texas A&M AgriLife Extension Service Soil, Water, and Forage Testing Laboratory provides research-based analyses for Texans and our neighbors throughout the continental United States.

The laboratory focus is on plant nutrient analyses in soil, elemental plant analyses, forage nutritive analysis, and bio-solid analyses for beneficial soil application and non-drinking water analysis.

The Laboratory is open from 8 a.m. to 5 p.m., Monday-Friday; however, it follows the Texas A&M University Holiday and Closure Calendar.

Laboratory email address: soiltesting@ag.tamu.edu

Sending samples to the laboratory:

Mailing through USPS address:
Texas A&M AgriLife Extension Service Soil Testing Laboratory
2478 TAMU
College Station, TX 77843-2478


Shipping through other Couriers address:
Texas A&M AgriLife Extension Service Soil Testing Laboratory
2610 F&B Road
College Station, TX 77845
979-321-5960  
Please note: our phone number has changed effective December 7th, 2023.
All samples must include hardcopy submittal forms or sample information entered through our online payment system.
Listing of Laboratory Methods

References to the methods used by the laboratory

mETHODS
Soil Fertility/Nutrient Recommendations

Listing of current nitrogen, phosphorus and potassium recommendations based on soil test values, crop and yield goals.

n, p, k rECS
Sampling and Shipping Instructions

Sampling and Shipping Instructions

sAMPLING AND SHIPPING
Fertilizer and other helpful calculators

Two groups of calculators can be accessed below.

Ag Calculators

Urban Calculators
Submittal forms, Pricing and Payment Information

View our submittal forms and get information on which tests to choose and how to fill out each form.

sUBMITTAL fORMS, PRICING AND pAYMENT
Publications

Read various publications and journals submitted by the lab.

pUBLICATIONS

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