For a more sober take on urban farming than Work AC's agro-fantasia, check out this project by Mossop+Michaels for a Vietnamese-American community in New Orleans. Today, it garnered a 2008 ASLA Professional Award.
Quoting the brief in part:
The Viet Village Urban Farm project represents an effort to reestablish the tradition of local farming in this community after Katrina. New Orleans East was one of the most damaged areas of the city during the storms of 2005. In response to the devastation, the community has organized around the idea of creating an urban farm and market as the center of the community. The farm, located on 28-acres in the heart of the community, will be a combination of small-plot gardening for family consumption, larger commercial plots focused on providing food for local restaurants and grocery stores in New Orleans, and a livestock area for raising chickens and goats in the traditional Vietnamese way. The proposed market on the site will provide a location for the individual farmers to supplement their income as well as serve as a central meeting space for the larger Vietnamese community along the Gulf Coast. Based on the history of the markets in the area before Katrina, as many as 3,000 people are expected to come to the site for a Saturday market, perhaps more on traditional festival days. Specialty vegetables and foods used in Vietnamese cuisine will be sold at the market. Local Vietnamese restaurants will have a space to sell prepared food during market days as well.
Another goal of the project is to bring together the different generations with the local community through the shared endeavor of the farm and that the traditional skills and practices of the culture brought from Vietnam to America are passed down by the generation of elders. Thus it is also important that the farm also acts as a community center and areas for sports and playgrounds are proposed for the site. The community sees this project as the centerpiece for the rebuilding efforts in the New Orleans East.
If you're at all interested in urban agriculture, this is a good case study to review.