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Making Crops Greater for Growers Around the World Since 1938.
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TP&S Lab Blog
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Category: Blog
Mirtha Valdez has been appointed Office Manager! As such, she is responsible for the day-to-day business operations. But when the samples come in and we’re short-handed, she pitches right in!
Mon, 21 Jul 2014 21:31:49 +0000

Category: Blog
Please join us in congratulating Chemist Frank Rivera, who has been named Assistant Manager of Laboratory Services. In addition to being a production chemist, Frank has shown great initiative in streamlining procedures, identifying production bottlenecks and assisting Vice President of Research, Dr. Larry Zibilske and Manager of Laboratory Services, Richard David Ramirez, in developing new […]
Fri, 11 Jul 2014 16:12:24 +0000

Category: Blog, Maryland, soil testing
Testing This Week at TP&S Lab: Soil Samples from Maryland TP&S Lab tests soil from all over the world and this week we are pleased to be serving clients in Maryland with soil samples for corn crops. TP&S Lab has been developing proprietary nutritional guidelines for corn crops for many decades now, and clients that […]
Wed, 09 Jul 2014 19:59:09 +0000

Category: Blog, Oregon, water testing
Testing This Week: Water Samples from Oregon for Alfalfa TP&S Lab tests water samples from all over the world and makes recommendations for crops related to your watering needs. This week we’re testing water samples sent in from Oregon, used for irrigation of Alfalfa crops. TP&S Lab has proprietary nutritional guidelines for crops culled from […]
Tue, 08 Jul 2014 03:49:00 +0000

Our Testing Catalog with Pricing for 2014 is
Now Available!
Click Here to download it in PDF form.

You can now order all of our testing online!
Click Here for more information and to order.

Welcome to TP&S Lab

TP&S Lab, established in 1938 in the heart of the Rio Grand Valley, is a leading national testing lab for Soil, Plant, and Water analysis.

For over 75 years we have been perfecting the process of laboratory soil analysis, the Daubeny Extraction Method, utilizing Carbon Dioxide (CO2) to mimic the way plants naturally take in nutrients, and the Albrecht system of fertility balancing for optimum crop yields.

If you don't know what is in your soil or water, if you are at a loss to explain poor plant performance, if you have been told your soil or water or plants are beyond help, if you desire better yields and consistent harvest, or if you are unaware of the heavy metals in your soil, water and crops, we can help.

Our spectrum of services range from mail-in soil test kits for the
at-home enthusiast, to resellable services for commercial providers such as nurseries, landscapers and greenskeepers, to government contracts, agri-corps and universities all over the world.

In conjunction with the most accurate of laboratory results in the industry and the closest to Nature of methods, TPSL specializes in soil fertility and plant nutrition. We have trained and certified professionals who have interpreted tens of thousands of soil test over decades of years.

Our proprietary Ask the Plant® program allows you to dynamically adjust your fertilization program to accommodate your crop's ever-changing nutritional requirements throughout the growing season resulting in higher crop yields, reduced water use, eliminating fertilizer waste and ensuring a healthy, safe product.

We are proficient in all chemical, organic, biological and physical aspects of agricultural science.

On our site you can review our services for soil, plant, and water testing, analysis and recommendations. We are also able to accommodate special requirements testing not see here.

Please contact us today at 956-383-0739 and speak with us
about your needs.

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Ask the Plant
TP&S Lab
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Visit our sister site
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TP&S Lab is proud to be a member of the Texas Ag Industries Association.
TNLA & Texas Ag Industrial Association
TP&S Lab is proud to be a member of the Texas Nursery and Landscape Association.
Texas Wine & Grape Growers Association
TP&S Lab is proud to be a member of the Texas Wine and Grape Growers Association.
US Composting Council
TP&S Lab is proud to be an approved Lab by the U.S. Composting Council for Seal of Testing Assurance.
TP&S Lab is proud to be a member of the American Society for
Enology and Viticulture.
American Society for Enology and Viticulture
*ASEV and the ASEV Logo are licensed trademarks of the American Society for Enology and Viticulture.
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Texas Plant & Soil Lab is a full service Analytical and Consulting Agronomic Laboratory.
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