hydroponics
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hy·dro·pon·ics

noun plural but singular in construction \ˌhī-drə-ˈpä-niks\

Definition of HYDROPONICS

: the growing of plants in nutrient solutions with or without an inert medium (as soil) to provide mechanical support
hy·dro·pon·ic \-nik\ adjective
hy·dro·pon·i·cal·ly \-ni-k(ə-)lē\ adverb

Origin of HYDROPONICS

hydr- + -ponics (as in geoponics agriculture)
First Known Use: 1937

hydroponics

   (Concise Encyclopedia)

Cultivation of plants in nutrient-enriched water, with or without the mechanical support of an inert medium such as sand or gravel. Fertilizer solution is pumped through the system periodically. As the plants grow, concentration of the solution and frequency of pumping are increased. A wide variety of vegetables and florist crops can be grown satisfactorily in gravel. Automatic watering and fertilizing saves on labor, but installation costs are high and fertilizer solution must be tested frequently. Yields are about the same as for soil-grown crops.

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