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Hydroponics is a type of horticulture and a subset of hydroculture which involves growing plants, usually crops or medicinal plants, without soil, by using water-based mineral nutrient solutions in an artificial environment.
Most commercial DWC systems are designed to grow leafy greens such as head lettuce, baby leaf greens, large leaf greens, and herbs. One may also find facilities that utilize DWC to grow hemp and other produce, however, this is less common. Depending on what type of produce is being grown, the system design and horticultural techniques will change.
The term "vertical farming" was coined by Gilbert Ellis Bailey in 1915 in his book Vertical Farming.His use of the term differs from the current meaning—he wrote about farming with a special interest in soil origin, its nutrient content and the view of plant life as "vertical" life forms, specifically relating to their underground root structures. [16]
The Kratky method is a passive hydroponic technique for growing plants suspended above a reservoir of nutrient-rich water. [1] Because it is a non-circulating technique, no additional inputs of water or nutrients are needed after the original application, and no electricity, pumps, or water and oxygen circulation systems are required. [2]
The choice of growing media and components to the media help support plant life. Within a greenhouse environment, growers may choose to grow their plants in an aquaponic system where there is no soil used. Growers within a greenhouse setting will often opt for a soilless mix which does not include any actual components of naturally occurring soil.
The fog droplets used in these experiments were generated by equipment supplied by Mee Industries of California. [20] In collaboration with John Prewer, a commercial grower named Kings Nurseries on the Isle of Wight used a different design of aeroponics system in 1984 to grow strawberry plants.
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