Answer: Hydroponics is what you are talking about. It's a style of growing plants in dilute solutions of nutrients without soil. The idea is simple: as long as plants get the right mix of elements, and the right light and temperature, they'll grow just as well in nutrient solutions as in a garden. Methods of hydroponics today call for carefully orchestrated mixtures of chemicals with light and heat and humidity carefully monitored. Tomatoes, squash, cucumbers, and lettuce are among the products produced in this manner. A large operation in Lebanon, Indiana, Randle Farms and Greenhouse, produces hydroponic tomatoes for stores in the Indianapolis area. Less demanding than the commercial segment, at-home hydroponics is a growing business (excuse the pun!).
For supplies and more information, just type "hydroponics" in any search engine, and you will be amazed at the sites available!
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