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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: Agricultural Events, Acres USA 2015
Texas Plant & Soil Lab – featuring Dr. Larry Zibilske and Noel Garcia, CCA – has been invited to give another Acres U.S.A. pre-conference workshop this year in Pittsburg. This year it will be a one-day-only, extremely concentrated session, again designed for well-experienced field consultants and growers. The workshop will focus upon not only post-session […]
Mon, 27 Jul 2015 19:01:47 +0000

Category: Blog, Fresh Fruit Analysis
Fresh Fruit Elements Analysis With Silicon Option is the latest test from Texas Plant & Soil Lab for 2015. This test is intended especially for Fertilizer / Adjuvant / Inoculant Manufacturers who want to track the effectiveness of their products and Food Processors who wish to monitor the levels of produce Nutrient Density by their […]
Mon, 22 Jun 2015 22:03:50 +0000

Category: Blog, plant testing
It’s the first week of June and while some of Texas is still waist-deep in water, Texas Plant and Soil Lab is waist-deep in plant tissue samples from all over these United States. Farmers that were fortunate enough to get crops in the ground amid the unusually heavy rains that engulfed Texas and most of […]
Mon, 08 Jun 2015 23:18:26 +0000

Category: Blog, ACRES USA
Be sure and check out our ads in this month’s Acres USA Magazine!
Tue, 02 Jun 2015 15:36:57 +0000

Our Method

TP&S Lab uses the CO2 Extraction Method to extract Potassium (K), Sodium (Na), Calcium (Ca), and Magnesium (Mg) from your soil. This method duplicates the way plants naturally extract these nutrients from ANY soil. TP&S Lab has been testing soils from around the world and providing solutions for growers for more than 70 years.

The CO2 Extraction Method is offered only by a handful of labs around the world, as it is extremely labor-intensive and does not lend itself to an automated processing line as does Mehlich III or other commonly-offered soil nutrition tests.

Other testing methods only tell you the TOTAL CONTENT of Potassium (K), Sodium (Na), Calcium (Ca), and Magnesium (Mg) present. The CO2 Method seprately tells you what is immediately available to the plant (water soluble) and what is
"in reserve" as a locked-up compound (generally unavailable).

This explains why a more standard test may show certain nutrients as adequate or high, yet the plants show deficiencies in those nutrients - and why you may see the same test results, year after year.

Because our method duplicates the way the plant naturally extracts nutrients, it is the most accurate method of measuring Potassium (K), Sodium (Na), Calcium (Ca), and Magnesium (Mg). It does not have to be adjusted according to soil type. The proof is always in crop / plant performance!

CO2 was the first soil nutrient extraction method, develpoed in England by Daubeny in 1845. As analytical technology improved, much work was done on the method by the universities of Arizona and Florida and others in the 20th Century. Building upon those works, TP&S Lab has further developed and refined the testing standards.

But the real value in a TP&S Lab test is in the recommendation. You get a specific fertilzation recommendations for your crop in your soil based on your cultivation practice, whether CONVENTIONAL, SUSTAINABLE, or ORGANIC.

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

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TP&S Lab is proud to be a member of the Texas Wine and Grape Growers Association.
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TP&S Lab is proud to be an approved Lab by the U.S. Composting Council for Seal of Testing Assurance.
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