Hydroponics and aeroponics are both extremely efficient techniques for growing plants without the use of land and which, therefore, allow you to cultivate anywhere, even where there is no land. They can be applied both indoors (indoor cultivation) and outdoors (as long as there are the right climatic conditions) and to make the plants grow, it is sufficient to develop a nutrient solution based on water and nutrients. Even better if the irrigation and feeding process of the vegetables is managed through an automatic system, so as to require the continuous intervention of a person who takes care of it.