Plants require seventeen ‘essential’ mineral elements. Years of research on the levels and effects of these elements and their combinations have resulted in hydroponics.
The plant’s nutrition is dissolved in water and delivered to the plant in a nutrient solution. Hydroponic gardeners can alter the amount of each nutrient and create a solution that gives their plants exactly what they need in order to grow the desired way. They can also vary the amount of each nutrient in the solution to suit the different stages in the plant’s life. Nutrient testing is done regularly, and ensures that all nutrients are at the correct levels – not too high, not too low – at all times.
Oxygen is an important nutrient, and a plant will drown without sufficiently high levels of oxygen to its roots. Hydroponics allows a plant’s roots to have easy access to oxygen and other vital gases such as carbon dioxide.