Like water plants which may not need their roots dug in to earth, is it possible to grow the plants in air?

Question

If not why not?

What are the sceintific reasons?
Lack of water supply to plants is ony the problem?

Instead of water being made available through roots, is it possible to 'inject' water through the leaves of the plants .
The wild imagination of having/growing the hanging plants in air without their roots immersed in water may look odd but is it possible in 'Botanical' terms?
Has anybody thought over it?

Answer 1

There is such a thing as "air plants" but they are a particular type that don't need water or dirt on the roots. Like Orchids, Bromiliads,epiphytes, and saxicolous they absorb all the water and nutrients through their leaves properly called trichomes. They only need to be anchored firmly on a board, rock or piece of wood in an upright position so the "rosette" at the bottom that acts as a cup can collect rain water or dew. This is how they water themselves in nature. This is a different classification of plants and regular plants cannot be forced to grow like this, unlike dirt plants that can be hydroponically grown. The primary scientific reason it cannot be done is regular plants have to have a certain blend of air in the dirt, but not too much and not too little.

Answer 2

Yes it's called aeroponics and subdivision of hydroponics, basically you spray the roots every 15 minutes with a water solution containing a hydroponic grow solution. Aeroponics works better than conventional methods because the roots receive more oxygen and the nutrients are already dissolved in water and ready to use. Also aeroponics increase the amount of fruit or growth of a plant about 2-3 times and the plant matures faster.

Answer 3

yes ther are some plants (advetious root ) in which the roots absorbs moisture from air i cant remember the exact name for that plant.......