Research & reports

Maira dos Santos, Mariana Campos Martins Machado · Segurança Alimentar e Nutricional · Brazil (Florianópolis)

A qualitative study was conducted with 11 participating families of a community garden in the Campeche neighborhood of Florianópolis, Brazil, to evaluate the impact of Urban and Peri-urban Agriculture (AUP) on Food and Nutritional Security (SAN) and eating behavior. Through interviews using semi-structured questionnaires, the community garden was understood as a space for health promotion, strengthening healthy eating practices, and preserving the municipality's food culture. The community garden proved effective in promoting and guaranteeing SAN principles, strengthening healthy eating practices, and fostering citizenship.

Silvia Iveth Moreno Gaytán, Mercedes A. Jiménez-Velázquez, Martín Hernández Juárez · Estudios Sociales Revista de Alimentación Contemporánea y Desarrollo Regional · Mexico (Ciudad de México)

The sustainability of urban agriculture practiced by women in the Valle de Chalco Solidaridad, Mexico City Metropolitan Area, was investigated. A qualitative follow-up on 45 production units and a quantitative questionnaire to 25 female producers from Xico Kaa’a Comunicaciones A. C. were conducted. Urban agriculture's sustainability was found to be strong, contributing to family food self-sufficiency, employing agroecological techniques for environmental improvement, and over 50% of MESMIS diagnostic criteria were evaluated as sustainable.

Gaston E. Small, Paliza Shrestha, Geneviève S. Metson, Katherine Polsky, Ivan Jimenez, Adam D. Kay · Environmental Research Communications · United States

Survey data from 142 gardeners and urban farmers in the Twin Cities Metropolitan Area, USA, characterized phosphorus (P) and nitrogen (N) inputs and harvest, and measured soil P concentrations at a subset of sites. Median application rates were 300 kg P/ha and 1400 kg N/ha, with low nutrient use efficiencies (2.5% for P, 5.0% for N). Garden soils had a median Bray P value of 80 ppm, far exceeding recommended levels, indicating a buildup and potential loss of P and N. Urban gardens, though only 0.1% of land area, constitute one of the largest inputs of P to the watershed.

Sally Brown, Ned Beecher · Compost Science & Utilization · United States

This study modeled the carbon benefits and costs of biosolids compost use in King County, Washington. Soil carbon sequestration was highest for use on disturbed soils, such as new housing developments, neglected urban soils, or highway right-of-ways (–1.1 Mg CO2eq per Mg compost), and lowest for use in well-tended yards or other highly maintained landscapes (–0.036 Mg CO2eq per Mg compost). Compost use for tree growth, calculated over a 30-year period, added above-ground sequestration benefits ranging from –1.53 Mg CO2eq per Mg compost for a mature tree grown on a healthy soil to –4.58 Mg CO2eq per Mg compost for a newly planted tree grown on a disturbed site. Assuming a 20 km haul distance, transport costs ranged from 0.005 Mg CO2eq per Mg compost for delivery in a 5 Mg truck to 0.09 Mg CO2eq per Mg compost for pick up in a personal vehicle.

Yadeneyro de la Cruz Elizondo, Juan Camilo Fontalvo-Buelvas · Suelos Ecuatoriales · Mexico (Xalapa)

In an urban green area in Xalapa, Mexico, soil quality was evaluated prior to the implementation of a university garden. The soil was brown and sandy loam with poor aggregate stability and a bulk density of 2.52 g/cm3. Biologically, earthworm density was poor at 67.2 ind/m2 and the number of edaphic groups was poor at 5, though pH was optimal at 6.58 and organic matter was medium at 6.45%. Overall soil quality was assessed as moderate, indicating a need for an integrated soil management plan for improvement.

Ana Paula Schmitz Rodrigues, Eunice Aita Isaia Kindel · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Brazil (Porto Alegre)

This qualitative study, conducted with elementary school students in a public school in Porto Alegre, Brazil, aimed to raise environmental awareness through direct engagement in creating a school garden and separating solid waste. Student statements were recorded and categorized to understand their perceptions of solid waste, nutrient cycling, and food. The findings indicated students' detachment from the environment and highlighted the need for more interdisciplinary and continuous environmental education practices in schools.

Nikhil Villani, Jack Stambaugh · ScholarWorks@UMassAmherst (University of Massachusetts Amherst) · United States

The UMass Carbon Farming Initiative (CFI) at the Agricultural Learning Center (ALC) involves Stockbridge School of Agriculture students and faculty researching and practicing regenerative food production. Initiated in Spring 2018, students designed and installed a chestnut-sheep silvopasture on a two-acre site. The first season involved starting a chestnut nursery, planting chestnuts, and rotationally grazing six sheep between rows.

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.

Francisco Magalhães Araújo dos Santos, Eduardo Borges Chaves, Geane Andrade Carreiro, Marília S. Lima, Ewerton Gasparetto Silva, Cristovam Alves de Lima · · Brazil

This report describes a university extension activity at the community garden run by the Pastoral da Crianca (Children's Pastoral) in Uruçuí, Piauí state, Brazil — an organization active in the municipality for over 20 years, assisting more than 200 vulnerable children, with its garden managed by 14 members. Lacking a rational irrigation system and relying only on manual watering cans, the garden required heavy labor and imprecise water application and had not reached its maximum productive potential. After community sensitization and a topographic survey to size the system, a localized microsprinkler irrigation system was installed, with the executing team maintaining the garden through bed cleaning, weeding and irrigation management. Following installation, evaluation by the members managing the garden found reduced physical labor, decreased production losses during dry periods, and higher product quality that translated into increased earnings channeled back to those assisted by the Pastoral da Crianca, along with greater environmental awareness through more efficient water use.

Heather McIlvaine-Newsad, Rob Porter · Journal of Park and Recreation Administration · United States

This study describes how the creation of community gardens in four distinct communities in Puerto Rico led to a wide variety of socially just benefits, including recreation and food production, for participants. Ethnographic research conducted in Puerto Rico from 2016 to 2019 examined the role of community gardens before and after Hurricane Maria. The authors conclude that while these gardens may have been established for one purpose, that purpose evolved over time to meet the multiple needs and desires of participants. The main reason for creating the gardens was a desire to grow vegetables in a manner emulating the practices of Taino and Jibaro ancestors, with replicating a sustainable, environmentally friendly way of farming serving both as a statement about wanting to live in harmony with the land and a political statement about Puerto Rico's status in relation to the United States. Participants learned agroecology practices while creating spaces for leisure and social activities, and over time other forms of environmental and cultural education were incorporated; gardening together, people engaged in causes such as building renewable energy, strengthening intergenerational social bonds, and environmental and social activism. The bonds formed in these spaces prior to the hurricane produced knowledge, labor and infrastructure that helped these communities navigate the effects of Hurricane Maria.

Jamille Cavalcante Santos, Valdinéia Gusmão Silva · · Brazil

A study analyzed the feasibility of establishing an organic community garden at Erivaldo Cerqueira Lagoon Park in Feira de Santana, Bahia, Brazil, using interviews with park visitors. It concluded that implementing the garden is viable and desired by the majority of the visitors interviewed.

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.

Cláudio José Bertazzo · Cadernos de Agroecologia · Brazil (Goiania)

NEPEA (Interdisciplinary Center for Research and Extension in Agroecology) in Goias, Brazil, was established to foster sustainable rural development. The center focuses on ecologically based farms in Southeast Goiania, conducting research on sustainable agriculture and tree arrangements for the rehabilitation of degraded areas. It also carries out extension activities in schools, promoting and implementing school gardens and pedagogical nurseries.

Ana Carolina F. G. Araújo, João Paulo de Souza Moreira, Lorena Martins Costa, Tales Bedeschi Faria, Louise Rochebois Quintão, Aline Silva Santos · Cadernos de Agroecologia · Brazil

At IFMG – Santa Luzia campus, a community organic garden was established to develop agroecological awareness among teachers and students. This initiative, stemming from discussions during Environment Week, involved constructing flowerbeds and planting vegetables. It aimed to create spaces for knowledge construction and promote future extension projects for mapping small farmers and replicating the school garden.

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.

Rayssa da Rocha Batista, Aparecida Hurtado Soares, Carolina Simões dos Santos, Henderson Gonçalves Nobre · Cadernos de Agroecologia · Brazil

In Capitão Poço, PA, urban and peri-urban farmers cultivate vegetables for subsistence and surplus sale. The NEA/UFRA/Capitão Poço/PA has supported these farmers by providing information on agroecology principles and building participatory knowledge on sustainable vegetable production technologies. This initiative included three training workshops on agroecological production systems, covering biofertilizer production, composting, and vermicomposting, fostering learning and knowledge exchange.

Antônio Domingos Moreira, Aurélio José Antunes de Carvalho, Márcio Harrison dos Santos Ferreira · Revista Macambira · Brazil

This study describes a project implemented since September 2015 at Sinésio Costa State College in Riacho de Santana, Brazil, using theoretical-practical and participatory methodologies. The project is guided by agroecological and organic systems, recently integrated into the school's Pedagogical Political Project, enabling greater school community participation. Its aim is to propose sustainable alternatives for providing healthy food produced in small spaces.

Angelina Moreira Melo, Daniel Calbino, Yuri Gomes Figueiredo, Fabiola Paulino da Silva, E. R. de O. Carvalho · Cadernos de Agroecologia · Brazil

This empirical work, based on participatory research, analyzed the social relations between producers of the Vapabucu community garden in Sete Lagoas, Brazil, and municipal public support organs. Research results indicate that while agroecological knowledge has advanced significantly in the technical dimension of agronomic production, the social relations among producers still show contradictions inherent to agroecological assumptions.

Fernanda Emanuele Silva Costa, Natália Sant’Anna de Medeiros, Iana de Oliveira Carneiro · Cadernos de Agroecologia · Brazil

This project, implemented in 2016 at EEEFM Professora Juraci Machado in Serra, Brazil, established a school garden with agroecological practices. With the help of students, teachers, and the local community, the project cultivated four species of unconventional food plants, four medicinal plants, and two fruit trees, plus two leguminous species for nitrogen fixation. The initiative aims to promote agroecological experiences and has already shown improvements in students' teamwork, cooperation, and appreciation for school spaces.

Pei Yu · Digital Commons - RISD (Rhode Island School of Design) · United States (New York City)

This research explores waste management in New York City, the world's most wasteful city, seeking ways to bring waste back into the city and connect people with it. Phase I investigates the composition, quantity, and mobility of NYC's waste management, while Phase II focuses on organic waste and the potential of vacant lots in Lower East Manhattan. Phase III proposes a composting park on the East River, engaging residents in various stages of waste management, and aims to connect urban residents to collective waste and the biome's power to transform organic waste into soil, food, and a new life cycle.

Rafael Rosa Rocha, Elizangela Carniel, Crislaine Borges Raimundo, Kátila Freitas Bento, Willian Marques Duarte, Ana Cássia Silva Possamai · Cadernos de Agroecologia · Brazil

This report details an agroecological vegetable garden project implemented for educational and food purposes in Nova Mutum - MT, Brazil. The project involved Agronomy students from UNEMAT and students from Jose Aparecido Ribeiro State School, providing a space for experience exchange, environmental discussions, and interaction through workshops on management techniques. The garden served as a sustainable alternative for healthy food production and demonstrated the importance of agroecological practices.

Brenda B. Lin, Monika Egerer, Heidi Liere, Shalene Jha, Stacy M. Philpott · Scientific Reports · United States (California)

A six-week study in summer 2017 in urban gardens in California, conducted with volunteer gardeners, examined how ambient temperature, water use, vegetation, ground cover, and soil management affect soil moisture gain and loss rates. The research found that plot-level soil management is essential for maintaining stable water levels within garden soils. Plots with better soil quality, indicated by higher water holding capacity, experienced slower rates of soil moisture gain after watering but also slower rates of soil moisture loss, resulting in more stable moisture profiles over time.

Janine Fernanda da Silveira, Maria Dalva Pereira, Suelen Ferreira Matoso Couto, Viviane Santos Pereira · Cadernos de Agroecologia · Brazil

This experience report investigated the daily dynamics and existing agroecological practices of a community garden in COHAB I, Lavras-MG, Brazil, which originated from a city hall initiative. The garden became an association with approximately 50 members two years prior, and while it has made some progress in production methods and social organization, further capacity building is deemed necessary.

Ana Paula Borges Martins, Júlia Pimenta Pereira, Polyanna Abreu Corrêa, Mariene Cristina Conceição De Melo, Francisco Adriano de Souza · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) · Brazil (Sete Lagoas)

This record provides information about a field study paper on the inoculation of Efficient Microorganisms (EM) and Arbuscular Mycorrhizal Fungi (FMA) in lettuce, made available in DSpace on November 8, 2017. The paper is provided in PDF format.

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.