Hydroponics is soilless cultivation of plants by placing the roots in the nutrient solution. Goerick (1940) used the term hydroponies to refer the growth of plants in water and sand culture.
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Assertion: The technique of growing plants in a nutrient solution is known as hydroponics Reason: Hydroponics is used for commercial production of vegetables such as tomato, seedless cucumber and lettuce.
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Assertion: In solution culture of plants, iron is added in the form of Fe-EDTA Reason: Hydroponics set-up is costly
$ The phenomenon of soil-less culture of plants is called Hydroponics. ! Donnan equilibrium is due to fixed ions in the cells
Hydroponics I. is useful in areas having infertile and dry soils II. Can regulate pH optimum for a particular crop. III. Increases labour cost. IV. Increases problem of weeding.
