The technique of growing plants in a nutrients solution, in complete absence of soil is called as

Options

A. aeroponics
B. water culture
C. hydroponics
D. soil culture

Answer

C

Explanation

Cultivation of plants by placing the roots in the nutrient solution (in complete absence of soil) is called hydroponics. It is necessary to aerate the solution to provide roots with adequate oxygen suppyl the resylt obtained from soil-less culture may then be used to determinie deficiencies under field conditions.