Specialists in Soil Fertility, Plant Nutrition, Compost and Irrigation, Hydroponic, Aquaponic and Aquaculture Water Quality Testing and Consulting Internationally since 1938.

Click Here for the COMPLETE Fee Schedule with Test Descriptions and References

Our ADDRESS has CHANGED
It is now
4915
West Monte Cristo Road
Edinburg, Texas 78541
DOWNLOAD LATEST FORMS
Forms are periodically updated
but we still get obsolete forms.
Soil Sample Bags and some materials
may show the old 5115 address.

EVENTS AND ANNOUNCEMENTS

Latest Publication: Silicon
Feb. 2, 2017

Acres 2017 - Booth #200
Presentation – Workshop
December 5-8 in Columbus, Ohio

Commodity Classic March 1, 2018, Anaheim CA

TPS Lab Presents Video