Increased Air Impact

Air cultures optimize the air supply for a successful plant growth. Materials and appliances that are used for the aeroponic plant cultivation have to be free of diseases or germs. A true aeroponic cultivation including the equipment is distinguished by the fact that it comes with monomial supporting features. A monomial contact between the plant and the supporting structure makes it possible, that the plant is in the air to 100%.



A permanent aeroponic cultivation requires that the roots are free of barriers, which surround the trunk or the roots directly. The physical contact is minimized, so that the natural growth and the expansion of the roots, the access to pure water and conditions free of diseases as well as the air exchange are not affected.

Advantages of oxygen in the root zone
For a healthy plant growth oxygen is needed in the rhizosphere (root zone). Just like the aeroponic method combines air with micro water drops, almost any plant can reach maturity, as long has it has enough oxygen, water and nutrients.

Some growers prefer aeroponic systems to other methods, because the higher ventilation of the nutrient solutions supplies the plant roots with more oxygen, which stimulates the growth and helps to prevent the development of germs.

Clean air delivers oxygen that has excellent cleaning qualities for the plants and the aeroponics surrounding. To ensure a natural growth, the plant needs unlimited access to air. To reach a successful physiological development, the plant needs to be able to grow naturally.

Some scientists used the aeroponics to analyze the effects of the gas-composition in the root zone on the crop of the plant. Soffer and Burger [Soffer et al., 1988] researched the influences of solute oxygen concentrations on the development of adventitious roots in the “aero-hydroponic” sector. They used a three-step hydro- and aero-system, in which three areas within the root zone were built. The ends of the roots were dipped into a container filled with a nutrient solution, while the middle parts of the roots were moistened by nutritious fog. The upper part of the roots did not get treatment.

The results prove that solute oxygen is essential for the root development. Furthermore it showed that with the three probed o2 concentrations the roots in the middle – moistened with nutritious fog - were always developed stronger, in terms of quantity and length, than the area of the root ends (dipped in nutrient solution) and the top part of the roots (no moistening). Even with minimal oxygen concentration the root area, which was moistened with fog, turned out to be the most successful.