Researchers at the St. Petersburg State Electrotechnical University 'LETI' have created a fully automated 'smart' city farm that has successfully doubled crop yields. The productivity boost was achieved through the use of a hydroponic growing system, the application of a mineral solution to the plants, and the creation of special LED lamps. These lamps emit radiation in the red and blue ranges of the spectrum, which is ideal for plant growth, leading to a 112% increase in basil productivity.