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What is CEC and why is it important?

Premier-Tech occasionally receives questions about the CEC of our PRO-MIX products or about the nutrient retention properties of our products. Both questions tie into CEC. So what is CEC?

CEC is an acronym for cation exchange capacity and refers to a soilless medium or soil’s capacity to hold and exchange mineral nutrients. To understand what CEC is we need to review a little chemistry. Conventional fertilizer comes in the form of salts. When mixed with water, these salts dissociate, or break apart, leaving individually charged nutrients.

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