Urban cropping

Based in «Growing Urban Agriculture», of Esther Ngumbi, «Innovative Agriculture», published at Grace Communications fundation, «Boston Medical Center Puts Down Roots For Patient Health», published at WGBH, Vertical farming of Dickson Despommier, Brooklyn grange, Growing home, and Bonton farms. In comparation with modern extensive cropping, small horts looks out of time, and in case of urban…