husbandry,
farming,
agriculture agriculture considered as an occupation or way of life; "farming is a strenuous life"; "there's no work on the land any more"
Hydroponics (From the Greek words hydro, water and ponos, labor) 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, or coconut husk. Researchers discovered in the 19th century that plants absorb essential mineral nutrients as inorganic ions in water.
OmegaWiki Dictionary
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hydroponics The growing of plants without soil. Plants are fed with an aerated solution of nutrients, and the roots are either supported within an inert matrix, or are freely floating in the nutrient solution. (source: FAO)
