Aeroponics / hydroponics it is a latest methods of growing the different types of plants / crops without soil through air and mist plants are grown , using this methods will reduce the usage of chemicals and fertilizers so that soil pollution will be reduced and Investment will be less in this major countries like Dubai were implementing  this methods to reduce the imports of food essentials from other countries and this methods are fully automized so man power is less this and profit will be more , leafy vegetables are grown highly like palak , broccoli etc and some fruits the plants can be grown both in indoor and outdoor so this the most advanced ,useful & profitable methods