Stundents at Mayfield High School and the CEVEC school on the high school campus are working on growing food hydroponically.

Hydroponics — growing plants in nutrient-rich water rather than soil — might seem like a fairly modern idea, but people in China have used the technique to grow rice since at least the 13th century.

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Ready to become a farmer? You can do it on a small scale — without soil. There are three growing methods that end with “-ponics” (from Greek meaning “to labor” or “to work”): Hydroponics: The “hydro,” ...