Research & reports

Matheus Martins Mendes, André Victor Sales Passos, Carol Rebouças da Silva · · Brazil

This internship experience, guided by popular extension university principles, focused on knowledge exchange between scientific and popular communities in the San Francisco settlement, Jose de Freitas, Piaui, Brazil. A partnership between the Federal Rural University of the Semiarid Region, REAPI, and local farmers led to the implementation of a women-maintained community garden and the recovery of four springs. Agroecological activities also highlighted the role of women farmers in agroecological transition.

Ellis Cose · · United States (New York City)

This descriptive piece discusses U.S. community energy initiatives as expressions of local self-determination, citing the Banana Kelly Community Improvement Association in New York's South Bronx and the Bronx Frontier Development Corporation, founded by a community activist grandmother, which began by converting vacant lots into community gardens; it also cites the Washington-based Center for Renewable Resources' catalogue of roughly 1,800 community energy projects, supported in part by the Community Services Administration and private foundations.

Elizabeth A. Miernicki, Sarah Taylor Lovell, Sam E. Wortman · Urban Agriculture & Regional Food Systems · United States (Illinois)

A 2-year field experiment in Illinois compared urban production systems (direct soil, compost-only raised beds, and mixed compost-and-soil raised beds) and fertilizer sources for their effects on growing media, weeds, and vegetable yields. Compost raised beds had higher pH, organic matter, and nutrients and sharply reduced weeds, and the authors recommend raised beds with a mix of compost and soil for urban vegetable production.

Germano Güttler, Valmir Milani, Camila Peligrinotti Tarouco, Marcos André Nohatto, Eliete De Fatima de Ferreira da Rosa · Revista Ciência Agrícola · Brazil

A study conducted in Brazil evaluated the effects of physical-mechanical control strategies on Rumex obtusifolius (broad-leaved dock), a difficult weed in urban production. Using a randomized block experimental design, treatments including black mulching, intermittent black mulching, transparent mulching, mowing, weeding, and a control were compared. Results showed that mulching, in particular, had a greater capacity to reduce the population density and aerial dry mass of broad-leaved dock, but the effectiveness of control depends on the continuous maintenance of these strategies.

Monika Egerer, Brenda B. Lin, Stacy M. Philpott · Frontiers in Sustainable Food Systems · United States (California)

This citizen science study in the California Central Coast examined water use, vegetation, and soil management in urban gardens. Water use varied by gardener and was positively related to mulching and crop cover. Gardeners expressing high concern for drought and water conservation paradoxically tended to use more water, while those in gardens with more rules used less.

Janaina Henrique dos Santos, Júlio César Maestri · Cadernos de Agroecologia · Brazil

This work presents the experience of reapplying the "Revolution of the Baldinhos" Social Technology, which involves managing organic residues and urban agriculture, in Macaiba-RN, Brazil. The project focuses on women collecting household organic waste to produce thermophilic static compost for urban food production and gardening. This method, originating from the UFSC Method, was applied through the Urban Housing Project with Social Technology (MUTS), supported by AACC/RN and Banco do Brasil Foundation, marking its first national application.

Juliana Cavalheiro Costa, Mayara Pisssuti Albano Vieira · COLLOQUIUM SOCIALIS · Brazil

This work aimed to gather knowledge on applying the placemaking concept to implement a community garden and orchard in an urban empty space within the Ana Jacinta Housing Complex in Presidente Prudente-SP, Brazil. The methodology involved bibliographic research on housing complexes, documentary research, and field surveys.

Eileen V. Wallis · Western Historical Quarterly · United States (California)

This article explores the significance of urban agriculture in Southern California from the late nineteenth century to World War II. It examines how informal, small-scale, part-time urban and suburban agricultural production contributed to the region's economic development and cultural identity.

David Vieira Lima, Geovane Rocha de Carvalho, Jaqueline Silva Sousa, José Weselli de Sá Andrade · Global Science and Technology · Brazil

This research in Brazil evaluated the viability of a low-cost, handmade hydroponic system for sustainable urban agriculture, constructed from 25 reused 2L PET bottles. Lettuce was cultivated in this system and a commercial system for 57 days. Statistical analysis showed that while the handmade model was less productive, it yielded plants in excellent condition for consumption at a low cost, validating it as a viable alternative for sustainable urban agriculture.

R John Little · OpenSIUC (Southern Illinois University Carbondale) · United States

A research study evaluated fertility requirements for 'Sweet Hungarian' Peppers and 'Savor' Charentais Melons grown in a three-inch extensive green roof medium on the Southern Illinois University campus. Six treatments were applied to peppers and four treatments to melons, each replicated three times. This study contributes to optimizing appropriate fertility treatments for green roof agriculture.

Shiuhhuah Serena Chou · ISLE Interdisciplinary Studies in Literature and Environment · United States

Urban foraging reemerged at the turn of the twenty-first century as a mode of urban food production, leading to a diverse body of literature including field guides and personal accounts. This literature suggests that the resurgence of urban foraging, as seen in works like Michael Pollan's The Omnivore's Dilemma (2006) and Tama Matsuoka Wong's Foraged Flavor (2012), may be more than a fad. The practice of finding, harvesting, and consuming edible wild plants challenges the idea of American cities as food deserts, presenting urban spaces as sites of cultural and environmental sustainability.

Megan M. Gregory, Scott Peters · Journal of Agriculture Food Systems and Community Development · United States

A case study within the Food Dignity community-university research partnership examined a participatory action research (PAR) project on cover crops with community gardeners in Brooklyn, New York. Engaging gardeners in cover crop monitoring strengthened their knowledge of ecological processes such as nitrogen fixation, field days supported leadership development, and sustained in-person support enabled implementation of cover cropping practices; challenges included reconciling community-defined priorities with the constraints of a dissertation project and providing sufficient one-on-one support given limited funding for community-based partners.

Natalia Matesanz Ventura · Dialnet (Universidad de la Rioja) · United States (New York City)

A case study of more than 50 gardens dotting the Loisaida neighborhood in southeast Manhattan, New York City. Since the 1960s, city agents — neighbors, artists, and architects such as Matta-Clark and Fuller — have built the green spaces and public facilities the neighborhood lacked, activating community and self-managed spaces through affective, dissenting processes. Using architectural forms whose generative parameters depart from traditional design and existing hegemonies, these actors have appropriated the city and reprogrammed public space by creating common space. Stands, domes, and casitas (tiny houses), with their vernacular and kitsch forms, constitute a network centered on the historical lot of La Plaza Cultural. The community gardens form a DIY network of delocalized but interconnected spaces with their own codes, positioned against the real estate market, media encroachment, globalization, and the private appropriation of public resources.

Ednaldo Michellon, Janaina Miyashiro Simon, Aldeir Isael Faxina Barros, Victor de Canini Cezar, Jaqueline da Silva Rosa, Wellington Fernandes Pereira · Cadernos de Agroecologia · Brazil

The municipality of Maringá, Brazil, has 37 community gardens that make use of abandoned or underutilized natural resources while improving participating families' environment and quality of life. Since 2008, the Reference Center for Urban and Periurban Agriculture (CerAUP), created amid social movements advocating for public policy support of urban and periurban agriculture, has provided technical assistance and voluntary extension services for such projects. This study used a questionnaire with participants of the Villa Atenas community garden to assess satisfaction with cultivating medicinal plants, the plants cited, their forms of use, plant parts used, and purposes of use. Results showed high satisfaction with the space used for cultivating medicinal plants, but only superficial knowledge among participants of the plants used and their purposes, leading the authors to conclude that popular and scientific knowledge about these plants needs wider dissemination.

Chris McGivern, Shuttleworth Foundation Team · Shuttleworth Foundation · United States

A Shuttleworth Foundation interview article (dated 24 December 2018) with Rory Aronson, founder of FarmBot, describing how he joined the Shuttleworth Fellowship in 2014 to work on FarmBot full-time and his commitment to open-source principles. He states Facebook videos of FarmBot were shared over 200 million times, preorders exceeded $1 million in the first two months after launch, and the latest manufacturing run completed 500 units.

Nagle L., Echols S., Tamminga K. · Journal of Green Building · United States (Pennsylvania)

Monitors the productivity of a 7.5 m² outdoor living wall planted with produce crops during the 2015 summer in State College, Pennsylvania, also collecting irradiance, water-use and soil-moisture data.

Jim Leap, Darryl Wong, Kirstin Yogg Comerchero · · United States (California)

This grower guide addresses the basic steps for organically growing peppers in California's Central Coast region. It notes that peppers are productive from July to October without season extension, are relatively easy to grow, and offer various marketing and culinary options. The guide also provides an overview of pepper varieties for specialty crop growers.

Savanah Diane Rhine, Russell Alan Zimmerman · DigitalCommons - CalPoly (California State Polytechnic University) · United States (California)

This project aims to develop a more functional plan for the Ornamental Horticulture (OH) Unit at the Hanford Agriculture Program, which serves over 1,000 students from three high schools in Hanford, California. A majority of these students are not in the OH Career Pathway due to a lack of a constant, fully functional unit. The plan focuses on four broad areas: vegetable boxes, greenhouses, a shade house, and beautification, to provide a functional school garden and OH Unit at the Hanford High Campus. This initiative seeks to equip students with skills in horticulture, crop, and soil sciences, greenhouse production, and irrigation technology, offering practical experience for future careers in agriculture.

Araceli Calderón Cisneros · Dialnet (Universidad de la Rioja) · Mexico (Chiapas)

This qualitative study analyzed the role of family urban agriculture in urban sustainability in San Cristobal de Las Casas, Chiapas, Mexico, using open and structured interviews. The visited agricultural systems showed characteristics favoring resilience and sustainability, such as low use of external inputs and recycling of domestic waste. However, a limitation found was that the contribution of own production to family consumption is very low, despite existing food, environmental, and socio-cultural motivations for its continuity.

Galdino Xavier Paula Filho, Gutemberg Armando Diniz Guerra · Cadernos de Agroecologia · Brazil (Altamira)

This study analyzed alternative vegetable production systems in nine urban gardens in Altamira, Pará, Brazil, focusing on methods avoiding agrochemicals and chemical fertilizers, and their commercialization in two local open-air markets. Semi-structured interviews and on-site visits revealed that pest and disease control uses natural repellents like pepper, tobacco, neem, and garlic compounds. Fertilization relies on wood sawdust, crop residues (rice and coffee straw), and animal manure. Commercialization is linked to social organization and occurs through producer associations at open-air markets.

Júlio Cézar de Almeida Lopes, Hélder Ribeiro Freitas, Eliéser Santurbano Gervásio · Cadernos de Agroecologia · Brazil

This study evaluated the adoption of a drip irrigation kit in an agroecological community garden in Juazeiro, Brazil. The introduction of the system and the social organization of the group led to low adoption of the drip irrigation system, with several farmers returning to manual watering and, to a lesser extent, micro-sprinkler systems.

Suleiman Osman · Journal of Planning History · United States (New York City)

The origins of public-private parks in New York City trace back to the 1970s fiscal crisis. Due to severe budget cuts at the Parks and Recreation Department, thousands of volunteers in block associations and community groups began maintaining parks through "do-it-yourself" urbanism, including guerrilla horticulture and community gardens. These self-help efforts evolved into new public-private parks by the early 1980s, reflecting antistatist impulses from both the left and right in the 1970s.

Marco Antonio Toral Juárez, Catalino Jorge López Collado, Felipe Gallardo-López · · Mexico (Veracruz)

This study identified cultural, socioeconomic, and environmental factors influencing women's disposition to practice home horticulture and the financial profits of container vegetable production. Using non-probabilistic sampling, 114 women were selected in the peri-urban zone of Cardel City, Veracruz, Mexico, and interviewed with a Likert scale survey. The disposition to practice peri-urban horticulture was favorable, and four out of six containers had a positive cost/benefit ratio. Multiple factors affect this disposition, while the environmental factor determines which vegetables can grow.

Edmund L. Thralls · EDIS · United States

This 4-page fact sheet, published by the UF Department of Environmental Horticulture in October 2015, provides instructions for creating a hydroponic garden using a plastic wading pool. It details the materials, tools, and construction steps required to grow various crops in a liquid nutrient solution. The publication aims to engage youth in food systems through hydroponics in school garden settings.

Stéphane Stéphane · · Canada

Stephane Groleau gave a talk on Urban Vegan Agriculture at the Montreal Vegan Festival on November 6, 2016. The event also featured an information booth on veganic agriculture. The talk highlighted that growing food in cities without animal exploitation is possible, despite urban agriculture often relying on such practices.