Agronomic and Environmental Assessment of a Polyculture Rooftop Soilless Urban Home Garden in a Mediterranean City

Urban Farm DB summary

This study analyzed an 18 m2 polyculture rooftop soilless urban home garden in Barcelona city center from 2015 to 2017 to estimate its degree of self-sufficiency and sustainability. A total productivity of 10.6 kg/m2/year was achieved, estimating that 5.3 m2 would be needed to fulfill the yearly vegetable requirements of an average citizen. While a high degree of self-sufficiency was achieved, fertilizers and their associated leachates accounted for the highest environmental impacts in all studied categories.