Instead of growing the vegetables/fruits in soil, when we grow plants either through soilless chambers or in a neutral medium like coconut coir, cocopeat, perlite, rockwool, expanded clay to hold roots of plants and dissolve all required nutrients in water and provide directly to plant, said method of growing is called Hydroponic farming.
These growing systems/mediums are susceptible to climatic conditions, hence we typically grow the plants in polyhouses with certain/complete climate control, hence depending on level of control we also classify our farms as “Protected Cultivation” to “Controlled Environment Agriculture”.