Aeroponics

Aeroponics : A variation of hydroponics that involves the misting of plant roots with nutrient solution. Commonly used in cloning machines, but can be used for full term growth. Advantageous due to the higher levels of oxygen present in the root zone. It also reduces the amount of energy a plant uses to uptake nutrient by delivering food and water in small drops as opposed to the water accumulating on the root for absorption.
 was developed at the University of Pia in Italy by Dr Franco Massantini some 30 years ago. It is a hydrogardening method that utilizes a fine mist of water over the roots, as opposed to saturation. The main advantage of aeroponics is maximum aeration in the root zone. The importance of oxygen in supporting the intensive metabolic processes associated with root formation and subsequent growth is well recognized.

Aeroponics is most often utilized in propagation

Propagation : The act of propagating; continuance or multiplication of the kind by generation or successive production; as, the propagation of animals or plants.
. Cloning machines are an extremely efficient means of encouraging root formation and can attain roots in as little as five days. Also, by negating the need for cloning gels, solutions, humidomes, flats, inserts, etc. they can actually pay for themselves over a period of time. As a technique for full term growth aeroponics has yet to prove itself commercially.


There are relatively high set up costs and the technique is mechanically quite elaborate, susceptible to malfunction, requires precise regulation and control of water and nutrients, and has no buffer capacity to sustain even slight deviations or occasional malfunctions. In the event of blocked nozzles or breakdowns going unnoticed, plants may be irreparably damaged in a relatively short time. However, there are aeroponic systems on the market that exhibit great success.

Aeroponics is ideal for root vegetables, such as carrots or potatoes. Being able to observe the root crop during growth is beneficial during harvesting. In soil the produce cannot be seen and must be harvested according to traditional practice. Aeroponics offers maximum efficiency of crop by allowing harvest at the ideal time.