electrical conductivity

Electrical Conductivity (EC) measures a material's ability to conduct an electric current and the conductivity of a solution is directly related to the amount of salts dissolved in it. The more salts, the higher the EC. Why is this relevant to hydroponic gardening? Well, hydroponic nutrients are primarily composed of mineral salts, so Electrical Conductivity can give you an idea of how many nutrients are in your solution. Each ion in the solution has a different specific conductivity and … [Read more...] about Electrical Conductivity and hydroponic gardening