Question

Identify the incorrect statement regarding hydroponics.

• A. Nutrient solution is made by dissolving mineral salts in distilled water.
• B. Roots of plants are immersed in nutrient solution.
• C. Suitable to plants which can utilize dissolved oxygen only.
• D. Convenient to add or remove an element in varied concentrations.

Answer 1

The correct option is C Suitable to plants which can utilize dissolved oxygen only.

In hydroponics, roots of plants are immersed in nutrient solutions which are adequately aerated to obtain optimum growth. In this method, plants grow in a control environment containing different esssential elements. The essential elements required by the plants can be identified by this method. J. Sachs used this method to identify necessary salts required by the plants.