Question

What is the key principle of the EBB and flow system in hydroponics?

• A. It floods and drains periodically
• B. It makes a tide flowing over the roots
• C. It sprays a mist of nutrients on the roots
• D. None of the above

Answer 1

The correct option is A It floods and drains periodically

Ebb and Flow, or Flood and Drain is a system involves the periodic flooding and draining of the nutrient solutions. Basically, there are two phases of its operation. The Flood is when the water and nutrients flow the growing areas, flowing over the plants' roots. The drain is when the water drains back to the reservoir. These two actions take turn continuously, and hence their name.

So, the correct option is ‘it floods and drains periodically’.