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Category: Blog, water testing, water testing georgia
Georgia Water Testing Testing this Week at TP&S Lab: Water From Georgia TP&S Lab test water from all over the world and we’re proud to serve our clients in Georgia. Georgia has a rich and varied selection of prominent crops including cotton, peanuts, corn, tobacco, hay, pecans, soybeans, wheat and of course the well-known Georgia […]
Thu, 27 Feb 2014 20:30:50 +0000

Category: Blog, testing water, water testing, water testing kentucky
Kentucky Water Testing Testing this Week at TP&S Lab: Water from Kentucky TP&S Lab is a global Water Plant and Soil Laboratory serving everyone from super farms with thousands of hectares to the residential lawn and garden enthusiast. This week we are pleased to include our customers from Kentucky for whom we are testing water […]
Thu, 27 Feb 2014 20:20:30 +0000

Category: Blog, soil testing
Colombia Soil Testing Testing this Week at TP&S Lab: Soil from Colombia TP&S Lab is pleased to serve clients in Colombia for soil testing for Avocados.
Tue, 04 Feb 2014 01:39:32 +0000

Category: Blog
Testing Plant Samples from Missouri This weeks at TP&S Lab: Testing Plant Samples of Hay from Missouri! TP&S Lab is pleased to serve our clients in Missouri. With Plant Sap, Leaf and Petiole testing, TP&S Lab can diagnose hidden hunger and nutritional imbalances before signs of stress manifest themselves. By the time you see the […]
Tue, 28 Jan 2014 23:59:06 +0000

Our Method

Texas Plant & Soil 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. Texas Plant & Soil 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, Texas Plant & Soil Lab has further developed and refined the testing standards.

But the real value in a Texas Plant & Soil 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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