**2.3 Aeroponics**

Growing plant without soil: Cultivating plants in an opaque that supports container in which their roots are suspended and showered in a nourishing mist is known as aeroponics. The type of the aeroponic, frequency of root exposure, and content of the nutritional solution are the essential features of the approach. Spraying typically lasts 30 until 60 seconds, and the frequency varies depending on the species, plant development stage, growing season, and time of day. The drainage from each nebulization is collected at the bottom of the modules and recirculated [5]. The aeroponic system also gave unique insights into storage root development by triggering the proliferation of auxin-dependent towards secondary xylem parenchyma cells to generate early root thickness and bulk. The created approach can aid molecular scientists, breeders, and physiologists directly throughout, allowing them to screen germplasm on root qualities that correspond with enhanced economic attributes (**Figure 5**) [6].

**Figure 4.** *Urban farming throughout hydroponics technology.*

**Figure 5.** *Urban farming throughout aeroponics technology.*
