Definitions for Hydroponicsˌhaɪ drəˈpɒn ɪks
This page provides all possible meanings and translations of the word Hydroponics
Random House Webster's College Dictionary
hy•dro•pon•icsˌhaɪ drəˈpɒn ɪks(n.)
(used with a sing. v.) the cultivation of plants by placing the roots in liquid nutrient solutions rather than in soil; soilless growth of plants.
Origin of hydroponics:
1935–40; hydro -1+ (geo )ponics
hy•drop•o•nisthaɪˈdrɒp ə nɪst(n.)hy`dro•pon′i•cist
hydroponics, aquiculture, tank farming(noun)
a technique of growing plants (without soil) in water containing dissolved nutrients
the cultivation of plants in a nutrient solution rather than in the soil
Hydroponics is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium, such as perlite, gravel, mineral wool, expanded clay pebbles or coconut husk. Researchers discovered in the 18th century that plants absorb essential mineral nutrients as inorganic ions in water. In natural conditions, soil acts as a mineral nutrient reservoir but the soil itself is not essential to plant growth. When the mineral nutrients in the soil dissolve in water, plant roots are able to absorb them. When the required mineral nutrients are introduced into a plant's water supply artificially, soil is no longer required for the plant to thrive. Almost any terrestrial plant will grow with hydroponics. Hydroponics is also a standard technique in biology research and teaching.
U.S. National Library of Medicine
A technique for growing plants in culture solutions rather than in soil. The roots are immersed in an aerated solution containing the correct proportions of essential mineral salts. (From Concise Dictionary of Biology, 1990)
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