Answer: PPM and TDS are abbreviations that represent the concentration of elements in a solution or atmosphere. PPM is short for parts per million and TDS is short for total disolved solids. EC (electro conductivity) is another measurement for TDS. pH is a measure of acidity or alkilinity which dictates plant uptake of particular elements.
Frequently Asked Questions
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Why are PPM, TDS, pH, and EC important?
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