Hydroponics. NASA researcher checking hydroponic onions with Bibb lettuce to his left and radishes to the right Hydroponics is a subset of hydroculture, the method of growing plants without soil, using mineral nutrient solutions in a water solvent.[1] Terrestrial plants may be grown with only their roots exposed to the mineral solution, or the roots may be supported by an inert medium, such as perlite or gravel.
The nutrients in hydroponics can be from fish waste, duck manure, or normal nutrients. History[edit] Floating_Hydroponics Greenhouse. A hydroponic lettuce demonstration greenhouse operation More pictures Address: 10 Pinckney Road Ithaca, NY 14850 U.S.A. Currently operated by Challenge Industries, Inc., Ithaca NY. Please visit the web site of the lettuce greenhouse at Introduction. Hydroponic / Greenhouse Crops - Small Farms / Alternative Enterprises - Institute of Food and Agricultural Sciences Extension. The primary crops grown in greenhouses include: pepper, tomato, cucumber, lettuce, herbs, and strawberry.
The industry in Florida has changed from primarily either tomato or cucumber in the early 1990s to the diversity of today. A variety of structure types are used, as well. Structures include both fan and pad or naturally ventilated systems. Both are successfully used in the state depending on cropping intentions. More... Hydroponic Research - Lincoln University.