Research & reports

Azemfack Jules Arnol, Mbouobda Hermann Désiré, Dobgima John Fonmboh, Muyang Rosaline Forsah, Fotso · African Journal of Biology and Medical Research · Cameroon

This study aimed to isolate and characterize Rhizobium bacteria from Phaseolus vulgaris root nodules to produce nitrogen biofertilizer as a chemical fertilizer substitute. Nodules from the University of Bamenda's school garden were used to purify and characterize Rhizobium, which were then used with charcoal powder to produce biofertilizer. Morphological characterization revealed fast-growing, translucent, mucoid, Gram-negative bacteria consistent with Rhizobium, and three concentrations of biofertilizer with a six-month shelf life were produced.

Sk. Md. Nur-E-Alam, Marcin Feltynowski, Md. Sekender Ali, Mohummed Shofi Ullah Mazumder, Fida Al Hasan · Acta Scientiarum Polonorum Administratio Locorum · Bangladesh (Dhaka)

This study in Dhaka, Bangladesh, aimed to explore the socio-economic characteristics and current knowledge of rooftop gardeners, and to evaluate factors contributing to their gardening knowledge. The research found that gardening space and media contact positively correlate with gardeners' existing knowledge. Access to diverse media can enhance understanding, and having gardening space facilitates technical knowledge sharing and community building among gardeners.

Katarína Slobodníková, Attila Tóth · Land · Slovakia

This study examined the approaches and methods of civic initiatives (CIs) implementing Green Infrastructure (GI) and Nature-Based Solutions (NBSs) in Slovakia. Analysis of seventeen case studies showed that many CIs engage in NBS activities such as creating or enhancing parks, green public spaces, and community gardens, and restoring natural and semi-natural areas. Knowledge creation and awareness-raising are also central strategies, with the transformation of derelict areas into multifunctional public spaces emerging as a notable practice.

Nam-Gyeong Gim · Asia-pacific Journal of Convergent Research Interchange · Global

This study developed an efficient hydroponic smart-farm program for urban elementary school students, focusing on its applicability in a classroom environment. Through school environmental analysis and program development using household items and upcycled materials, the study confirmed that urban schools, despite operational disadvantages, have potential for small-scale smart-farm operation. The developed program demonstrated applicability with low-cost, recyclable materials.

Susan Jagger · The Canadian Journal of Action Research · Global

This paper points out the limited research on the experiences of young learners in participatory action research (PAR) in environmental education. It shares the reflections of the Eco Research Organization, a group of grade six researchers, and their adult co-researcher, Susan Jagger, on their engagement in PAR in a longitudinal study of their school garden and nature in their community.

Samuel Ikendi, Michael S. Retallick, Gail R. Nonnecke, Theressa N. Cooper, Francis Owusu · Journal of Agricultural Education · Global

A 2025 comparative study of alumni from Iowa State University (ISU) and Makerere University (MAK) who participated in a summer school garden service-learning program run through the Center for Sustainable Rural Livelihoods in Uganda between 2006 and 2019. Grounded in intergroup contact theory, a self-administered questionnaire was sent to 274 alumni via Qualtrics with a 94.2% response rate, measuring change in self-perceived appreciation of differences (SAD) and awareness of structural inequalities (ASI). ISU alumni showed greater changes in knowledge, attitudes, and awareness than MAK alumni; race, ethnicity, and gender accounted for differences, with white and female ISU alumni showing greater changes than alumni of color and male alumni respectively, and binational housing arrangements also influenced the differences.

Sucipto, Dian Peniasiani · INTERNATIONAL SEMINAR · Global

Using a library research method reviewing existing literature on pedagogy, environmental education, and Education for Sustainable Development (ESD), the role of teachers' pedagogical competence in the local content program Tatanen di Bale Atikan was examined for its effect on students' environmental character. Teachers were found to play a crucial role in integrating environmental values into lesson planning, teaching strategies, and evaluation, with hands-on activities such as planting, plant care, and school garden management improving students' ecological literacy and developing caring attitudes, responsibility, and sustainable habits; success depended on teacher role modeling, consistent habituation, and institutional school support, and the program's potential for wider replication faces challenges including limited facilities, teacher competence, and institutional support.

CiAuna Heard · Environmental Education Research · Global

Using the author's own course, "Race, Gender, and Environmental Justice," as a case study, this article argues that justice-oriented climate education is strengthened when rooted in Black ecofeminist pedagogy. Set against the context of Jesuit educational institutions' commitments to sustainability since Pope Francis's 2015 encyclical Laudato Si', it examines how Black ecofeminist pedagogy contributes to interrogating epistemological authority, developing structural analytical frameworks and embodied engagement with the lived world, arguing that it challenges Western Christian epistemological, methodological and political norms and pushes Jesuit environmental education toward a more critical stance on racial and gender justice.

Zulma Lopez Reyes, Dalia Alshahrani, Jovana Čvorović, Mary May, Maged M. Saad · Frontiers for Young Minds · Global

An educational article on Sustainable Development Goal 2 (Zero Hunger) describing how soil microbes act as natural fertilizers that improve soil quality and protect plants. The authors are researching how to use microbes to help plants grow in warmer climates, testing this work in school gardens where students learn about healthy soils and growing nutritious food using new technologies.

Angie Tatiana Ortega-Ramírez, Arley Lida Moreno, José Enrique Luna Correa, Miriam Reyes Tovar, Óscar Silva-Marrufo, Miriam América Caballero Olvera · Sustainability · Colombia (Bogotá)

A study designed and implemented a school garden at Carlos Albán Holguín school in Bogotá, Colombia, as a strategy to secure food for vulnerable communities and promote environmental education, structured in six stages including diagnosis, characterization, formulation and pilot validation. Surveys and checklists evaluated garden conditions and students' understanding of environmental practices. After implementation, 75% of students showed outstanding comprehension of sustainable agriculture and 80% effectively applied organic farming principles.

Márliton Santos, Martele Brito Santos, Josilene Martins Inez · REVISTA PONTO DE VISTA · Global

A systematic review following the PRISMA protocol, covering articles published between 2014 and 2024 in the CAPES and SciELO databases, analyzed the effect of school-based urban agriculture projects on students' emotional health. The review found that participation in school gardens was associated with a significant reduction in stress and anxiety levels and promoted the development of social skills. Pedagogical practices linked to urban agriculture were reported to foster a collaborative environment and improve emotional well-being, and the presence of green areas in schools was also found beneficial for academic performance and mental health.

Anna Stage (17743305), Marie Caroline Vermund (11075551), Mads Bølling (6661577), Camilla Roed Otte (21175813), Alberte Laura Oest Müllertz (21175816), Peter Bentsen (3527732), Glen Nielsen (10468844), Peter Elsborg (8894495) · Figshare · Denmark

A study protocol describes FoodACT, a multimethod, quasi-experimental investigation of the existing Danish school garden program Gardens to Bellies (GtB) and its effects on children's food literacy (FL), climate change literacy (CCL), school motivation (SM) and physical activity (PA), preregistered on ClinicalTrials.gov (#NCT05839080). The study covers six GtB locations across Region Zealand and Region of Southern Denmark, recruiting approximately 1,600 fourth-grade GtB pupils as the intervention group and approximately 1,600 fourth-grade pupils from non-GtB schools as controls. Pupils grow, prepare and cook food across eight garden sessions; FL, CCL and SM are measured via pre- and post-intervention surveys, PA via accelerometry, and acute SM via text-message surveys, alongside semi-structured and focus-group interviews with garden facilitators and pupils on implementation and mechanisms.

Lucía Caisso, Marina Eliana Espoturno, Ana Guadalupe Montenegro · CONICET Digital (CONICET) · Argentina

In rural primary schools of west-central Santa Fe province, Argentina, an anthropological study examined the relationship between education and environment. It reconstructs the social, productive and environmental context shaped by intensive agribusiness (agronegocio) and analyzes how this context affects school gardens, an activity rural teachers frame as part of Environmental Education. The analysis reveals tensions between the pedagogical mandate to develop school gardens, their reframing as Environmental Education, and the socio-environmental problems present in these settings, aiming to identify the limits and potentials of this pedagogical work around environmental issues.

Bharti Gautam, Neha Negi, J. Mohan, Babita Bharti, Amit Kumar, Ridhima Arya · International Journal of Advanced Biochemistry Research · Global

A review paper surveying sustainable urban agriculture and gardening practices against a backdrop of rapid urbanization linked to climate change, biodiversity loss, and environmental degradation. It covers composting, rainwater harvesting, rooftop gardening, hydroponics, aquaponics, and vertical farming, and discusses the role of integrated pest management, smart irrigation systems, and urban agroforestry. The review states that integrating nature-based solutions — urban farms, vertical gardens, and green roofs — into the urban landscape can lessen environmental problems such as poor air quality, flooding, and the urban heat island effect, and that urban horticulture plays an important role in food security, biodiversity, and environmental sustainability.

Christopher Tate, Shariq Mumtaz Hashmi, Niamh O’Kane, Ruth F. Hunter · Cities · Global

This systematic review searched four bibliographic databases and identified eleven studies on horticultural therapy (HT) interventions drawing on urban agriculture practices for people with pre-existing diagnoses of depression, anxiety, or acute stress disorder. Six studies reported improvements in depressive symptoms, three found HT mitigated stress, and two reported a positive influence on anxiety, but more than two-thirds of the included studies carried moderate (n=6) or high (n=2) risk of bias with substantial methodological heterogeneity, and the small number of studies limits the generalisability of the findings; the review concludes that further research is needed to establish a robust causal link between HT interventions and improved mental health outcomes in this population.

Gaynell M. Simpson, Wendy Lustbader · Innovation in Aging · Global

This symposium overview highlights cultural assets long relied upon by African American and Latina communities, focused on the formal and informal mutual aid of grandparent caregivers, which it describes as often overlooked or underutilized despite being a vital source of support. It states that historically, underserved grandparents have drawn on mutual aid practices such as neighbors relying on one another, sharing produce from community gardens, exchanging skills and abilities, and standing together with extended families when other societal resources were inaccessible. Four presenters address these themes: Carole Cox presents a virtual empowerment program on skill building, social connection, and empowerment; Nancy Mendoza offers recommendations on how the cultural assets of Latino grandparent caregivers can support their caregiving; Tina Peterson examines mutual aid among African American grandmothers raising grandchildren and how support networks compensate for gaps in formal and informal services; and Gaynell Simpson addresses the need for intergenerational programs and macro-level advocacy to address structural inequalities affecting grandparent caregivers and their families.

Jeremias Pineda, Armando M. Guidote · International Journal of Innovation in Science and Mathematics Education · Global

A quasi-experimental one-group pretest-posttest study tested whether agriCHEMture, a home-based, urban-gardening-themed e-learning laboratory material, improved General Chemistry achievement among remote-learning high school students during the COVID-19 pandemic. Fifty-one senior high school General Chemistry students received the agriCHEMture intervention between a pretest and posttest, and paired-samples t-tests (p < 0.001) showed post-test scores significantly higher than pretest scores, indicating a significant increase in chemistry achievement.

Zahara Abdul Manaf, Louise Tee, Nurul Mirza Mohamad Shah, Siti Hajar Mohammad, Abdul Arieffarid Abdul Wahid · Journal of Health Population and Nutrition · Malaysia

This quasi-experimental study involved 72 ten-year-old children at a primary school in the Klang Valley, Malaysia, recruited by convenience sampling. The intervention group received a two-month program combining a talk on fruits and vegetables, educational gardening, cooking activities, and an educational board game, while the control group received only a dietitian's talk on fruits and vegetables. Height and weight were measured to calculate BMI, and changes in knowledge, attitudes, and practices around fruit and vegetable consumption were measured with a self-administered structured questionnaire. Knowledge and awareness improved significantly among girls in the intervention group (p = 0.010) but not among boys (p = 0.272), and knowledge improved significantly among overweight and obese participants (p = 0.033) but not among those with normal or underweight BMI (p = 0.215). Attitude (p = 0.980) and practice (p = 0.233) toward fruit and vegetable consumption showed no statistically significant improvement after the intervention.

Diana Dushkova, Maria Ignatieva · Diversity · Global

Ongoing urbanization, biodiversity decline, and intensifying climate change are increasingly challenging the sustainability of urban green spaces dominated by conventional, intensively maintained lawns, which are criticized for their low biodiversity value and high resource demands. This paper explores nature-based solutions (NBS) as alternatives for enhancing the resilience and multifunctionality of urban lawns, conceptualizing lawns as intertwined ecological, design, and socio-cultural systems and evaluating strategies for their transformation. Drawing on case studies from ten Eurasian cities, a narrative literature review, and the authors' inter- and transdisciplinary research experience, it develops a typology of NBS alternatives including urban species-rich meadows, semi-natural grasslands, naturalistic herbaceous perennial plantings, mixed-vegetation groundcovers, edible lawns, pictorial (annual) meadows, and rewilded lawns, with key interventions including reduced mowing, multifunctional green spaces, adaptive management, and community engagement. The paper finds that these approaches can enhance biodiversity, ecosystem services, and climate resilience, but that their success depends on local ecological conditions, landscape design, and public perceptions of urban nature; it recommends using native, drought- and trampling-resistant plants with context-sensitive design that respects cultural traditions of urban greening and fosters social acceptance.

Otoadese D, Kamara I, Onyango E · International Journal of Environmental Research and Public Health · カナダ・アルバータ州

Community gardens are increasingly popular in Canadian cities and can be transformative spaces where immigrants develop self-reliant strategies for accessing culturally familiar, healthy food — yet many facilitators and barriers limit the engagement of racialized groups such as Black-identifying immigrants. Using a socio-ecological framework and a community-based participatory research approach, this mixed-methods study combined structured surveys (n = 119), in-depth interviews (n = 10) and two Afrocentric sharing circles, with participants recruited through African immigrant-serving community organisations in Alberta. Barriers at several levels of the socio-ecological model interacted to shape interest and engagement, while access to collective gardens was associated with significant benefits: maintaining healthy foodways, knowledge exchange, growing social capital, and community connections supporting overall wellbeing. The authors offer an accessible framework for addressing these barriers and for making urban agriculture initiatives more inclusive and culturally responsive.

Luis Andrade · Quito Informa (Municipio del Distrito Metropolitano de Quito) · Ecuador

On 29 April 2025, Quito's Metropolitan Council approved the 'Healthy Food Neighborhoods' ordinance, allowing community gardens on idle municipal land and requiring new housing developments to include garden space. The city currently has about 2,000 urban gardens and aims to double that number by 2030. ConQuito, the municipal economic development agency, will provide seeds and training, and produce will be sold through organized bioferias to avoid affecting existing markets.

Municipalidad de Guayaquil · Alcaldía de Guayaquil · Ecuador

An official Guayaquil municipal article on its 'School-Community Gardens Program,' which has set up 57 gardens (50 in schools, 7 community/family gardens) providing free seeds and fertilizer. The program has benefited 67,020 people to date, with participating families reporting household savings of up to USD 80 per month.

Alessio Russo · Land Use Policy, 149, 107410 · Global

A conceptual paper extending the ecological-restoration paradigm of rewilding into urban and food contexts, arguing that multispecies-based 'urban rewilding' can simultaneously enhance climate resilience, biodiversity recovery, food-system robustness, water sensitivity and community participation. It also flags trade-offs such as green gentrification and land availability, opening new debate within productive green infrastructure.

Johansson J., Roitto M., Steiner B., Alakukku L. · Cleaner and Responsible Consumption (Elsevier) · Finland

This Finnish study evaluates the co-creation of urban agriculture in residential settings with housing companies, finding that flexible modular planning and availability of key site actors are critical success factors for participatory urban farming initiatives.

Maphosa M., Moyo P. · Frontiers in Sustainable Cities · Zimbabwe (Bulawayo)

This study evaluated climate vulnerability in Bulawayo's urban food system and found that the city's 2007 urban agriculture policy lacks climate change provisions, institutional coordination is weak, and extension services are severely understaffed, though NGO-led innovations and national conservation agriculture programs offer promising pathways for resilience.