Welcome to AgSource Harris Laboratory-the agricultural industry's premier testing laboratory.

With AgSource Harris Laboratory's Full Circle, one of the most innovative testing programs available, we are ready to assist with your crop management. The Full Circle is a customized program that provides you with access to the complete spectrum of our laboratory services combined with client education, flexible reporting options, rapid turnaround times, "real-time" online results and expert consultation.

Our experience and dedication to laboratory accuracy is unparalleled in the industry.  AgSource Harris Laboratory's full-time laboratory staff is highly trained and qualified to employ the industry-accepted testing methods, utilizing our state-of-the art instrumentation.

Full-spectrum of laboratory services available:

• Soil analysis
• Plant-tissue analysis
• Irrigation-water analysis
• Other testing:
  • Manure
  • Herbicide
  • Greenhouse growth media

AgSource Harris Laboratory has been conducting testing services since 1958, serving all 50 states and 38 countries. Attention to quality results and quick turnaround are the reasons that AgSource Harris Laboratory became the first accredited soil testing laboratory and the first to introduce electronic data transfer over 17 years ago.

Put the Full Circle to work for you - test with the best.