Hydroponics is when crops are grown without soil and are instead grown in water and still get all of their necessary nutrients. It is popular to use in nurseries because it is easy to maintain and gives great control over the environment. It is also a good way to grow plants in areas that are difficult, such as dry areas or places with poor soil. In fact, hydroponics conserves more water than irrigation does, because the water is recirculated rather than being allowed to drain away.
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