This line of combination soil analysis outfits offers the finest visual color matching system available to today’s agronomist. Technically advanced reagent systems and unique extraction procedures based on the Mehlich I extraction provide fast, simple and extremely accurate soil testing.

Soil nutrients are drawn from the test sample, providing a clear liquid extract. The addition of an indicator reagent to the clear extract produces a color reaction in direct proportion to the nutrient concentration in the test solution. The developed color is read against permanent, translucent color standards provided in the Octa-Slide 2 Comparator. The result is a simple and distinct color match over a broad test range.

Tests for calcium, magnesium and chloride are performed with an easy-to-use Direct Reading Titrator. Reagent is dispensed into the sample solution extract until an endpoint color change is reached, then results are read directly from the titrator in parts per million.

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