Advantages of hydroponics -

1. Commercial production of vegetables (eg - seedless cucumber)

2. Identification of essential elements, their role in structure and function and their deficiency symptoms

3. Avoids problems of weeding

4. Provisions to regulate the pH so as to provide an optimal pH for a particular crop

5. Useful in areas having thin, infertile and dry soils

6. Controls soil-borne pathogens