Hydroponics is the science of growing plants without the use of soil. It is also known as “Soil-less culture”. The word comes from the culture of growing plants in water From the Greek – hydros meaning water & Ponos meaning work.
In soils, nutrients and water are randomly placed, and often plants need to expand a great deal of energy by growing long roots to find water and nutrients. By expanding this energy, the plants growth is not as fast as it could be.
It is also important to understand that plants grown in hydroponics are no different to plants grown in soil: they will have the same physiology.