Hydroponic Systems are systems where crops are grown without soil and only water and nutrients.
Examples of this type of hydroponic system include NFT (Nutrient Film Technology) systems and deep water floats where the plant's roots are immersed in nutrients. Another term for hydroponics is growing plants without soil. By this definition, plants grown in soil without soil (potting soil) or other types of aggregates (such as sand, and gravel) are considered hydroponic systems.
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