Hydroponic Vegetable Technology
Hydroponic vegetables refer to the vegetables that most of the roots grow in the nutrient solution layer and only provide water, nutrients and oxygen through the nutrient solution, which is different from the vegetables cultivated under the traditional soil cultivation form. Hydroponic vegetable technology is a kind of soilless cultivation. Sometimes, sand, gravel, sawdust, plastic and other substrates that do not contain solid nutrients are used for root fixation.
Hydroponic technology mainly includes nutrient film technology (NFT), deep flow technology (DFT), floating capillary hydraulics (FCH), etc.
(scientists use hydroponic techniques to grow onions, lettuce and radishes. Source: NASA)
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