The term hydroponic basically means growing things without soil. You do not need soil to make something grow you can do it with water and nutrients. It is an older practice that has been used in research for years. Plants take their nutrients from their water and light rather than from the soil. Hydroponic gardening for profit and fun is not very expensive and can produce a higher yield than regular gardening. It is a great way to make money if you like to grow things.
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