Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
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283 results(1 / 12)
Remediation of Contaminated Soils Using Organic Waste and Waste Products in Sub-Saharan Africa: A Review of Technologies, Adoption and Challenges
2026· Soil Systems · Sub-Saharan Africa
Reviews remediation of contaminated soils in Sub-Saharan Africa using organic waste and waste-derived products as sustainable, cost-effective amendments amid soil contamination driven partly by urban expansion.
CompostOrganic cycleTECHNICAL GUIDANCE HOUSEHOLD ORGANIC WASTE FERTILIZER PRODUCTION TO SUPPORT URBAN FARMING ON ANTHROPOGENIC LAND FOR THE DASAWISMA GROUPS
2026La Ode Rustam, Darwis Darwis, Rian Arini, Abdi Abdi · Mitra Mahajana Jurnal Pengabdian Masyarakat · Indonesia (Kendari City)
An Internal Community Partnership Program in Mandonga Village, Kendari City, Indonesia, provided technical guidance to the Gunung Sakura and Bunga Sakura Dasawisma Groups on converting household waste into organic fertilizer for urban farming on degraded land. The program achieved an 80% outcome attainment rate, with participants reaching 100% comprehension in identifying organic waste components and acquiring skills to produce solid organic fertilizer within 14-21 days. This fertilizer aims to restore soil fertility and support urban farming sustainability.
CompostDIYCommunityOrganic cyclePenguatan Kemandirian Pangan Rumah Tangga Melalui Hidroponik Vertikal Dan Pemasaran Digital Berbasis E-Commerce
2026Fitri Ayu, Benriwati Maharmi, Desi Yasri, Jesaja Ginting, Ermawati, Jean Riko Kurniawan Putra, Nurhasnah · Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal · Indonesia
A community service program in Berkah Family Village Housing, Kubang Jaya Village, Indonesia, used a Participatory Action Research (PAR) approach to enhance urban household food self-sufficiency. The program provided training in vertical hydroponics, organic waste processing, and e-commerce, increasing participants' knowledge and skills in these areas significantly. A single hydroponic tower yielded 7.2–14 kg per cycle with substantial income potential, and 20 households learned to process kitchen waste into liquid fertilizer.
Food sovereignty & justiceCommunityDigital agricultureCompostFruit-waste biochar for immobilizing potentially toxic elements in contaminated agricultural soils and reducing vegetable-related human health risks: A systematic review.
2026Nelson Joseph Msacky, Amelia Alfred, Oscar Punguti, Edson Protas, Iddi Mapande, Novatus, Shukrani Phillip, January G Msemakweli · Open MIND · Global
This systematic review aims to synthesize current scientific evidence on the effectiveness of fruit-waste-derived biochar in immobilizing potentially toxic elements (PTEs) in contaminated agricultural soils. It will evaluate how fruit-waste biochar reduces metal bioavailability, plant uptake, and associated human health risks from vegetable consumption. The review also seeks to identify which fruit wastes are used as biochar feedstocks and which biochar properties and production conditions influence immobilization performance, noting that existing research is fragmented.
Contamination & food safetyCompostOrganic cycleHealthPeri-urban agricultureDevelopment of Carbon Pools and Enzyme Activities in Constructed Urban Soils
2026Pasquale Napoletano, Maha Deeb, Sara Perl Egendorf, Brooke Singer, Zhongqi Cheng, Erika Di Iorio, Anna De Marco, Claudio Colombo, Peter Groffman · European Journal of Soil Science · Global
This study tracked the development and dynamics of organic matter pools over 21 months in constructed soils (1/3 compost, 2/3 fine glacio-fluvial sediments) with eight different vegetation treatments. Time and vegetation were the main drivers influencing soil parameters. A high diversity "All" treatment significantly enriched mineral/sand-associated organic carbon (MSOC) and nitrogen (MSON) by 15% and 12% respectively, compared to a non-vegetated "Bare" treatment. The presence of sunflower was associated with low values of nitrate-N, particulate organic N, hot-water extractable carbon, and β-glucosidase.
CompostOrganic cycleClimate changeDiscovering Soil Diversity
2026Birgitta Goldschmidt · International explorations in outdoor and environmental education · Global
This chapter presents a basic course in soil science to help teachers and students understand and manage soil in school gardens. The basics of soil science, evaluating and improving one's own soil, and managing it with knowledge and appreciation can be learned in school gardens. Methods such as composting, careful tillage, mulching, green manuring, favorable crop rotation, and minimal compaction can keep soil fertile and vibrant in the long term.
Food educationCompostOrganic cycleOptimalisasi Rumah Magot untuk Reduksi Sampah Organik dan Peningkatan Produktivitas Berbasis Ekonomi Sirkular
2026Wiendy Puspita Sari, Resanti Lestari, Tri Widiastuty, Chasano daffansyah, Nessa Deragia Saptiyanto, Alia Reinacaesar, Syafira Ardana, Stefanny · Jurnal Dharma Bhakti Ekuitas · Indonesia (Bandung)
This community program in Cigadung Subdistrict, Bandung City, aimed to enhance residents' capacity for organic waste management using black soldier fly (BSF) larvae within a circular economy framework. Implemented at Buruan SAE Barokah and Bumi Lestari, the program involved constructing biopond systems, integrating them with urban farming, and providing technical and entrepreneurship training. Results showed improved skills and operational capacity, with maggot production increasing from 4 kg to 8–9 kg per week, and frass used as organic fertilizer for urban farming.
Organic cycleCompostCommunityEconomicsSynergistic effects of vermicompost and biochar amendments on cherry tomato production in an urban rooftop garden: A 2‐year study
2026Mohammad Mahbub Islam, Robiul Islam, Rezowana Nizam, Nigar Afsana, Sadman Sakib, Suraya Parvin, Jubayer Al Mahmud, Md. Hasanuzzaman · Urban Agriculture & Regional Food Systems · Global
This 2-year study evaluated the growth, physiology, and yield response of cherry tomatoes in different rooftop soil media supplemented with vermicompost and biochar in an urban rooftop garden. Using a completely randomized design with nine treatments and four replications, the combined application of vermicompost and biochar consistently outperformed individual applications. Treatments with 74% soil, 20% vermicompost, and 6% biochar resulted in the tallest plants, highest leaf number, thick stems, high leaf greenness, high relative water content, and highest fruit yield across both years. Although fruit yield declined by 20.49% in the second year, residual amendment effects continued to enhance plant performance relative to untreated soil.
DIYCompostOrganic cycleClimate changeFactors Affecting Adoption of Systematic Household Waste Management, Waste Composting and Homestead Farming in Bharatpur, Janakpur and Pokhara
2026Sharad Sharma, Gita Kumari Shah, Arjun Aryal, Bipan Bahadur Tiwari, Bharat Khanal · Nepalese Journal of Agricultural Sciences · Nepal
The SOLID Health project by Nepal Development Society (NeDS) promoted household waste management and homestead farming in Bharatpur, Janakpur, and Pokhara, Nepal, from 2021 to 2024. A survey of 348 households found that 81% practiced either rooftop or kitchen gardening, with rooftop farming most prevalent in Pokhara (64%) and kitchen gardening in Bharatpur (71%). The project led to a 69% change in knowledge and attitude towards waste management and a 39% overall increase in home composting practice. Socio-demographic factors like education level, income, and land availability significantly influenced adoption, with higher education and larger homestead land areas linked to greater practice of kitchen gardening and rooftop farming.
CompostDIYCommunityFood educationPengelolaanSampah OrganikBerbasis Maggot sebagai Strategi Pendukung Urban Farming Berkelanjutan di Pamekasan
2026Sustiyana Sustiyana, Teguh Soedarto · Jurnal Agrosains Karya Kreatif dan Inovatif · Indonesia (Pamekasan)
This study aimed to analyze the influence of access to organic waste, training and education on waste management, government policy support, environmental and social awareness, and business opportunities on income and environmental preservation in sustainable urban farming in Pamekasan. Conducted at Roemah Maggot Nusantara, which uses Black Soldier Fly maggots for organic waste management, the study used multiple linear regression analysis. Results showed that all independent variables simultaneously had a significant effect on income and environmental preservation. However, partially, only environmental and social awareness had a significant effect, while access to organic waste, training and education, government policy support, and business opportunities did not show a significant effect.
Limited or null effectOrganic cycleCompostClimate changeEconomicsCommunity gardens as locally embedded nature-based solutions: a comparative study of Budapest and Turin
2026Luca Battisti, Adrienne Csizmady, Federico Cuomo, Luca Kristóf, Boldizsár Megyesi · Sustainability Science Practice and Policy · Hungary (Budapest)
This study examined how community gardens in Budapest and Turin function as locally embedded nature-based solutions (NbS) through the everyday practices of urban residents. Based on a qualitative analysis of 47 semi-structured interviews conducted in five gardens in Budapest and two in Turin, findings showed that gardeners practice NbS-aligned approaches. Socially, they foster well-being, inclusion, and community cohesion; technically, they adapt to resource constraints through low-tech experimentation and collaborative problem-solving; and ecologically, they support biodiversity, soil regeneration, and microclimate regulation through organic cultivation and composting.
CommunityBiodiversityCompostOrganic cycleHealthPolicyDesafios sobre os resíduos orgânicos em áreas urbanas:
2026Mayara Grazielle Consentino Ferreira da Silva, Karina Amendola da Silva Guimarães, Monique das Neves Silva · Revista Tamoios · Global
This paper discusses the challenges and benefits of composting organic waste in urban areas, examining community urban agriculture experiences, a university campus, and corporate environments. Community composting in urban agriculture showed that community involvement is crucial for success, fostering socio-environmental coexistence and low-cost use of degraded urban areas. However, composting on a university campus proved difficult to implement due to a lack of dedicated labor, despite student engagement.
CompostCommunityOrganic cycleApplying recovered nutrients and pruning waste to enrich and regenerate agricultural soils in urban agriculture: Effects on emissions and yield of spinach and sweet potato
2026Guido Evangelista, Juan David Arosemena, Gaia Stringari, Joan Romanyà, Xavier Gabarrell, Francesco Orsini, Gara Villalba · Agriculture Ecosystems & Environment · Global
This study evaluated the application of 150 t ha-1 of ramial chipped wood (RCW) to degraded peri-urban agricultural soils, comparing its effects on yield, soil health, and greenhouse gas emissions for spinach and sweet potato. Spinach grown with RCW showed the lowest productivity (1.16 – 0.32 kg m-2) among treatments, while sweet potato achieved the highest yield (1.72 – 1.99 kg m-2). High RCW doses initially led to higher CO2 emissions but significantly reduced N2O emissions for spinach (from 0.36 kg ha-1 to 0.07 kg ha-1) and enhanced soil organic carbon and nitrogen stocks for sweet potato, indicating agronomic and environmental trade-offs.
Environmental trade-offsOrganic cycleCompostClimate changePeri-urban agricultureTransforming horticultural productivity with organic manures in geotextile vertical farming
2026ANZUMAN RAHMAN NITU, Sohel Rana Mazumder, Abul Hasnat Muhammad Solaiman · Journal of Bioscience and Environment Research · Bangladesh (Dhaka)
A study conducted from December 2019 to April 2020 at Sher-e-Bangla Agricultural University, Dhaka, Bangladesh, evaluated organic manure-based substrates in geotextile vertical farming for mint, chili, and Indian spinach. The substrate combining vermicompost, coco fibre, and soil consistently enhanced the growth and yield of all three crops, producing the highest yields per plant compared to other treatments.
Organic cycleCompostClimate changeDigital agricultureCarbon gardens: A nature-based approach for climate change mitigation and sustainable landscapes
2026Farooq Ahmad Khan, Faheemullah Khan, Sumati Narayan, Mohammad Amir, Zaffar Mahdi Dar · International Journal of Research in Agronomy · Global
This review synthesizes the concept, design principles, carbon sequestration mechanisms, storage potential, and environmental benefits of carbon gardens, which are multifunctional landscapes designed to maximize carbon sequestration and deliver a wide range of ecosystem services. The article highlights their application in urban and rural landscapes and their integration with carbon-negative farming through practices such as biochar use and compost recycling. It also discusses key challenges related to carbon measurement, establishment costs, land availability, and long-term management.
Governance failureClimate changeFood sovereignty & justiceBiodiversityCompostThe role of urban community gardens in the food system in Brisbane, Australia
2026Serafina Stone, Jeremy Farr, Damian Hine, Yasmina Sultanbawa, S. K. Fyfe · Local Environment · Australia (Brisbane)
This research investigated how 16 members of four urban community gardens in Brisbane, Australia, derive value from their involvement in relation to the food system, using semi-structured interviews and participant observation. The findings indicate that while urban community gardens alone cannot address food security needs, they provide spaces for building community, generating social capital, connecting to nature, and developing food systems education. These benefits are contingent on the gardens' continued existence and primarily extend to those able to participate.
Limited or null effectCommunityFood sovereignty & justiceCompostTransforming Household Food Waste into a Community-Based Composting and Urban Food Production System: Basis for a Sustainable Food-to-Soil-to-Food Innovation Framework
2026Edmond P. Freo · Zenodo (CERN European Organization for Nuclear Research) · Philippines (Quezon City)
This study in Batasan Hills, Quezon City, Philippines, assessed the feasibility of an integrated Food-to-Soil-to-Food innovation model using a quantitative approach with 85 household residents. Respondents showed very high awareness of food waste segregation, composting, and urban gardening, and a general willingness to participate, though with some hesitation regarding consistent daily segregation. While a significant positive relationship between awareness and innovation acceptability was found, critical structural barriers included lack of tools, limited community support, and urban space constraints. The study concludes that transforming urban food waste into a circular production system is highly feasible with institutional and logistical support.
CompostCommunityOrganic cycleFood lossAgronomic Use of Urban Composts from Decentralized Composting Scenarios: Implications for a Horticultural Crop and Soil Properties
2025Irigoyen I., López M., Orden L., Moral R., Nogués I., Bustamante M.Á. · Agronomy · Europe (urban agriculture focus)
June 2025 study examining how decentralized and community composting are emerging as novel scenarios favoring localized management and valorization of organic waste streams. Supports organic waste reduction at community level and nutrient cycling for urban agriculture fertilization, offering alternatives to centralized composting.
CompostOrganic cycleFood educationExploring compost production potential and its economic benefits and greenhouse gas mitigation in Addis Ababa, Ethiopia
2025Shimelis G., Kim D., Yimer F., Tadesse M. · Science of The Total Environment · Africa (Ethiopia)
2025 study estimating compost production potential from municipal organic waste and human excreta in Addis Ababa, Ethiopia, with projections through 2050. Quantifies economic benefits (compost sales, fertilizer cost reduction), soil carbon sequestration, and greenhouse gas mitigation. Demonstrates feasibility of organic waste-to-compost systems for urban agriculture in African cities.
CompostOrganic cycleFood educationPolicyBoosting soil health and crop nutrients with locally sourced biochar and compost in Sacramento urban agriculture
2025· Frontiers in Sustainable Food Systems · North America (Sacramento, California, USA)
Field research conducted at two urban farms in Sacramento, California, USA. Investigates effects of locally produced compost and biochar amendments on soil health and plant nutrient uptake. Demonstrates feasibility of combining sustainable resource cycling with crop productivity in community-based urban agriculture systems.
CompostOrganic cycleFood educationHousehold food waste behaviors of participants in a municipal community compost program
2025Campbell C., Gusto C., Kelsey K.D., Haase H., Cohen N., Robertson K., Kiker G., Boz Z. · Journal of Agriculture, Food Systems, and Community Development, 14(2):9-26 · United States
A study in which 107 participants in a municipal community compost program in Gainesville, Florida, used a citizen-science approach to measure and record their household food waste for two weeks. Participants generated more than double the EPA's estimate (about 14 lb/week), yet 85.8% reported increased food-waste awareness and 71.5% reported reducing their waste, showing that community composting can nudge household food-loss reduction.
Food lossCompostCommunityFood educationMarket Yield of Relay Cropped Leafy Greens in Urban Agriculture Production Systems
2025Leigh Whittinghill, Megan Goins, Shawn Lucas · HortScience · United States
This study examined how two urban agriculture production systems (raised beds and container plots) and four nutrient-management treatments (conventional fertilizer, organic fertilizer, peat-and-compost plus organic fertilizer, and peat-and-compost only) affected yields of relay-cropped leafy greens across the 2018–2019 seasons. Significant differences between systems and treatments were few and inconsistent, but results suggest small plastic-pool containers are suitable for urban greens production and tentatively support organic fertilizers and compost as a nutrient source.
CompostEconomicsOrganic cycleAn innovative design of household-scale vermicomposting bin for domestic organic waste treatment
2025· International Journal of Environmental Science and Technology · Global
Proposes a household-scale vermicomposting bin using Perionyx excavatus to both treat domestic organic waste and grow vegetables; adding a ventilation pipe improved performance.
DIYCompostOrganic cycleExploring the utility of different bulking agents for speeding up the composting process of household kitchen waste
2025· Scientific Reports · Global
Compares different bulking agents for speeding up the composting process of household kitchen waste.
DIYCompostProducing Bokashi Compost from Vegetable and Fruit Wastes and Characteristics of Compost
2025· Turkish Journal of Agriculture - Food Science and Technology · Turkey
Produces bokashi compost by fermenting vegetable and fruit wastes with lacto serum and bran in vacuum buckets for 28 days, then characterizes the resulting compost.
DIYCompostFood loss