Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
Theme
Critical findings
133 results(3 / 6)
Can vermicompost mitigate water stress & pest pressure on zucchini?
2024Zzimbe, Adrian, Fuoss, Kylie, Armas, Joelle, Blubaugh, Carmen · SPARK Scholarship at Parkland (Parkland College) · Global
This experiment examines how water stress and vermicompost interactively shape pest attraction in urban agriculture, which faces challenges like water access and pest pressure. Vermicompost is hypothesized to mitigate water stress by enhancing organic matter and humic acids to improve water retention, and to relieve pest pressure by enhancing plant defensive chemistry.
CompostOrganic cycleClimate changePotential Policy and Community Implications of Equitable Organic Waste, Compost, and Urban Agricultural Systems in the United States
2023Hall S.M., Tikku V., Heiger-Bernays W.J. · Environmental Health Perspectives, 131(11):115001 · Global
Examines equity and safety in urban organic-waste cycling through a case study of waste-to-compost activities and legislation in four US cities. It warns that contaminants such as pesticides, lead, and PFAS and inconsistent regulation can worsen racial inequities in access to urban farmland and safe compost, and recommends justice-oriented policy with multilingual education and proper waste disposal.
CompostOrganic cyclePolicyFood lossCommunityDecentralized in-vessel composting: an efficient technology for biodegradable solid waste management
2023· Biomass Conversion and Biorefinery · Global
Examines decentralized in-vessel composting as an efficient technology for managing biodegradable solid waste.
DIYCompostOrganic cycleMunicipal Waste Degradation by Vermicomposting Using a Combination of Eisenia fetida and Lumbricus rubellus Species
2023· Agronomy · Global
Investigates the degradation of municipal waste through vermicomposting using a combination of Eisenia fetida and Lumbricus rubellus.
DIYCompostOrganic cycleLife cycle assessment of source separation of biowaste, pay as you throw systems and autonomous composting units in the Municipality of Katerini, Greece
2023· Journal of Material Cycles and Waste Management · Greece
Life cycle assessment comparing source separation of biowaste, pay-as-you-throw systems and autonomous (decentralized) composting units in the Municipality of Katerini, Greece.
DIYCommunityCompostCauliflower Cultivation on Rooftop Garden Using Various Composts: Morphological and Economic Analysis
2023Akhi Akter, Md. Forhad Hossain, Jubayer-Al Mahmud, Nasrin Sultana, Md Maruf Hasan, Tahira Begum · Journal of Agroforestry and Environment · Bangladesh (Dhaka)
This study investigated the impacts of vermicompost, sawdust, and cowdung on cauliflower growth and yield on a rooftop in Dhaka, Bangladesh, from November 2019 to July 2020. The experiment found that vermicompost (10 t ha-1) combined with recommended chemical fertilizers resulted in the highest yield (19.75 t ha-1) and benefit-cost ratio (3.33). The results indicate that rooftops are suitable for cauliflower production using vermicompost.
CompostOrganic cycleEconomicsDIYEl vermicompostaje una alternativa para potenciar la agricultura urbana
2023Medardo Wilfredo Blanco Villacorta · Revista de Investigación e Innovación Agropecuaria y de Recursos Naturales · Global
This review examined general aspects of vermicomposting to explore its use in treating organic solid waste and enhancing urban agriculture. It analyzed 99 papers published between 2000 and 2022, retrieved from Google Scholar. The review found that vermicomposting is a low-cost ecotechnological process where earthworms transform organic solid waste into vermicompost, making it suitable for recycling organic waste in cities and supporting urban agriculture sustainability.
CompostOrganic cycleEvaluación del desempeño productivo de la lechuga (Lechuga Batavia) fertilizada con diferentes cantidades de Lombicompostaje
2023Juliana Marcela Santos Calderón, Julián David Coral Sanabria, Olga Ximena Aguilar Galvis · Innovando En La U · Global
This study investigated the effect of different amounts of vermicompost (0%, 20%, and 40%) on Batavia lettuce cultivation. It found that 20% vermicompost accelerated germination on the first day (P0.05). By day 40, 20% vermicompost influenced plant height and leaf number, resulting in an average height of 5.44 cm and 7.2 leaves by day 46 (P<0.05). These findings suggest that 20% vermicompost is the most recommended amount for Batavia lettuce.
CompostDIYOrganic cycleFood sovereignty & justiceEfek Pemberian Pupuk Organik Cair Berbasis Kulit Buah (Eco Enzyme) terhadap Pertumbuhan Tanaman Pakcoy (Brassica chinensis L.)
2023Wulan Sari Sinaga, Desyana Millenia Limeranto, Eugenia Larissa Bakti Pangala, Kukuh Madyaningrana · Pro-Life · Global
This research investigated the macro nutrient content of fruit peel-based liquid organic fertilizer (LOF) and its effect on Pakcoy (Brassica chinensis L.) growth over 56 days, using a completely randomized design with five treatments and five replications. The study found that the macro nutrients in the fruit peel-based LOF did not meet the Ministry of Agriculture's quality standards. However, a 0.4 mL dose of the fruit peel-based LOF showed the best effect in supporting Pakcoy plant growth across all measured parameters.
DIYCompostOrganic cycleDecentralized composting as a waste management tool connect with the new global trends: a systematic review
2022· International Journal of Environmental Science and Technology · Global
Systematic review positioning decentralized composting as a waste management tool in the context of new global trends.
DIYCompostCommunityGrocery Waste Compost as an Alternative Hydroponic Growing Medium
2022· Agronomy · Global
Investigates replacing conventional hydroponic media such as cocodust with compost from locally sourced grocery waste, testing four mixtures (20–80% waste compost) on hydroponic lettuce over 35 days.
DIYFood lossCompostDecentralized Composting of Food Waste: A Perspective on Scientific Knowledge
2022Sanchez A. · Frontiers in Chemical Engineering · Global (review)
A perspective article synthesising scientific knowledge on decentralized (home and community) composting of food waste, discussing its role relative to centralized systems in urban organic waste management.
CompostCommunityInvestigating Farmer Perspectives and Compost Application for Soil Management in Urban Agriculture in Mwanza, Tanzania
2022Shefaza Esmail, Maren Oelbermann · Frontiers in Soil Science · Tanzania (Mwanza)
This study investigated farmer perspectives and compost application for soil management in urban agriculture in Mwanza, Tanzania. Semi-structured interviews with 34 urban farmers revealed concerns about climate change and unpredictable rain, with 82% desiring soil improvements. A field trial showed that organic amendments (poultry manure and food waste compost) improved soil water holding capacity by 14-19% and enhanced microbial biomass 1.7-4 times compared to inorganic nitrogen fertilizer, with comparable crop productivity.
CompostOrganic cycleCommunityClimate changeProdução de húmus líquido com diferentes solventes e proporções, para uso na arborização e agricultura urbana e periurbana
2022Eleano Rodrigues da Silva, Sônia Sena Alfaia, Marta Iria da Costa Ayres, S. G. A. de Sousa, Robert Corrêa Rodrigues · Concilium · Global
This study investigated the production of liquid humus (HL) using different solvents and proportions for use in urban and peri-urban afforestation and agriculture. Nutrient content and concentrations, yields, and the odor and appearance of the residue were analyzed. Results indicated that the odor in all HL samples was very mild, practically odorless, allowing their use in urban areas. From the chemical compositions of the analyzed products, it was inferred that HL has potential for use in urban agricultural practices, possibly contributing to improving soil cation exchange capacity (CTC).
Organic cycleCompostPeri-urban agricultureMaking Green(s) With Black and White: Constructing Soils for Urban Agriculture Using Earthworms, Organic and Mineral Wastes
2022José Hilario Rocha Araujo, A. Pando-Bahuon, C. Hartmann, H. Aroui-Boukbida, Thierry Desjardins, Thomas Z. Lerch · Frontiers in Ecology and Evolution · Global
This study evaluated the possibility of growing green vegetables on soils made from excavated deep horizon soils and green waste compost. Over three seasons, the effects of different amounts of compost (10, 20, and 30%) and the addition of earthworms (Lumbricus terrestris) on the production of lettuce, arugula, and spinach were tested in situ. The results demonstrated that it is possible to reuse urban mineral and organic wastes to engineer soils adapted to agriculture. Higher doses of compost significantly increased plant biomass, especially when earthworms were introduced.
CompostOrganic cycleEffect of Substrate Type and Fertilizing Management Programs on Yield and Nitrate Content of Both Molokhia and Spinach Grown on Rooftops in Egypt
2022· Middle East Journal of Agriculture Research · Egypt
Two experiments were conducted in 2020 and 2021 on a rooftop garden in Giza, Egypt, to investigate the effect of substrate type and fertilizing programs on molokhia and spinach yield and nitrate content. Substrate S1 (50% perlite: 50% peat moss) was found more suitable for high yield. While chemical nutrient solution (CNS) alone resulted in the highest yield, the combination of S1 and CNS followed by compost tea for 5 days before harvest (CNS+5) was most suitable for high yield with lower nitrate accumulation.
DIYCompostOrganic cycleHealthPer- and polyfluoroalkyl substances (PFAS) in commercial composts, garden soils, and potting mixes of Australia
2022Anithadevi Kenday Sivaram, Logeshwaran Panneerselvan, Aravind Surapaneni, Elliot Lee, Kurunthachalam Kannan, Mallavarapu Megharaj · Environmental Advances · Australia
This study assessed 19 commercially available composts, garden soils, and potting mixes in Australia for 38 per- and polyfluoroalkyl substances (PFAS). Total PFAS concentrations ranged from 1.26 to 11.84 µg kg−1 (dry weight), with total perfluorinated carboxylic acids (ƩPFCAs) being higher than perfluoroalkyl sulfonic acids (PFSAs). The total oxidizable precursor assay (TOPA) showed an increase in short-chain ƩPFCAs (0.48 to 7.63 µg kg−1) in composts and potting mixes, indicating transformation of PFCAs precursors. The measured concentrations of short-chain PFCAs in soil substrates have the potential to contribute to plant uptake and food chain transfer of PFAS to humans.
Contamination & food safetyHealthCompostUrban Agriculture as an Alternative for the Sustainable Production of Maize and Peanut
2022José Luis Villalpando, Daniel Francisco Chi-Maas, Itzel López‐Rosas, Víctor Ángel Aquino-Luna, Jesús Arreola-Enríquez, Julia Cristel Alcudia-Pérez, Gilberto Matos-Pech, Roberto Carlos Gómez-García, Jesús Froylán Martínez-Puc, William Cetzal‐Ix · Agriculture · Global
This study evaluated a backyard system using 50cm × 50cm pinewood boxes for maize and peanut over nine months. Approximately 213 kg of organic residues were converted into 300 kg of mature compost, and plant development was compared between compost and control conditions. Correlation analyses of morphological properties showed that nutrient effects were positively associated with crop morphology, with maize yields of 9 kg/m2 in compost conditions and 6.6 kg/m2 in control, and peanut yields of 184 g/m2 in compost and 73 g/m2 in control.
DIYCompostOrganic cycleOptimization of Bokashi-Composting Process Using Effective Microorganisms-1 in Smart Composting Bin
2021· Sensors · Global
Optimizes bokashi composting of household organic waste in a smart composting bin, fermenting banana peels with EM-1 brans over 14 days while sensors log temperature, humidity and moisture.
DIYCompostManaging a Circular Food System in Sustainable Urban Farming. Experimental Research at the Turku University Campus (Finland)
2021Leena Erälinna, Barbara Szymoniuk · Sustainability · Finland
This article presents an experimental project in Turku, Finland, aimed at implementing a circular food system in sustainable urban farming. The project had two objectives: reducing food waste in Turku University Campus restaurants and supporting local nutrient recycling by composting food waste for urban farming. The resulting concept, based on two experimental studies, is globally replicable for managing local circular food systems.
Organic cycleCompostFood lossClimate changeEvaluation of green roof structures and substrates for Lactuca sativa L. in tropical conditions
2021A. Varela, Alexandra Sandoval-Albán, Marcela Muñoz, Alfonso Goméz Gómez, Manuel Bogoya, Germán Combariza · Urban forestry & urban greening · Global
This study evaluated the optimal combination of three different modular extensive green roof structures and two types of local substrates (compost and soil + biochar) for Lactuca sativa L. var. crispa (lettuce) growth under tropical climate conditions, measuring physicochemical and biological properties of substrates and plant growth variables over seven weeks under rainy and dry conditions. A monolithic multilayer structure, high Mg concentrations, elevated amounts of 600 μm aggregates, and lower substrate bulk density were linked with higher L. sativa yield, but the specific substrate used was not associated with this result. Some physicochemical and microbiological properties of substrates changed by the experiment's end, with these changes dependent on climatic conditions.
DIYCompostClimate changeEffects of Biochar and Compost Applications on Soil Properties and Growth Performance of Amaranthus sp. Grown at Urban Community Garden
2021Jemima Japakumar, Rosazlin Abdullah, Noor Sharina Mohd Rosli · AGRIVITA Journal of Agricultural Science · Malaysia (Kuala Lumpur)
A field study in an urban community garden in Kuala Lumpur, Malaysia, investigated the effects of biochar and compost on Amaranthus sp. growth and soil properties. Using a randomized complete block design with five treatments, the combination of biochar and compost significantly increased plant height, leaf count, leaf width, chlorophyll content, fresh and dry weight, soil organic matter, and soil organic carbon content compared to other treatments. This combination showed the best effects in enhancing both soil properties and plant growth.
CompostOrganic cycleCommunityUrban Organic Waste for Urban Farming: Growing Lettuce Using Vermicompost and Thermophilic Compost
2021Corinna Schröder, Franziska Häfner, Oliver Christopher Larsen, Ariane Krause · Agronomy · Global
This pot trial with lettuce plants assessed the fertilizer value of composts derived from urban organic waste. Seven treatments, including food waste vermicompost and thermophilic compost from green waste and human feces, were investigated. Lettuce yield and total uptake of P, K, Ca, and Mg were highest with coir-based vermicompost, while fecal compost resulted in high shoot P and K but lower Ca and Mg uptake. All composts required additional nitrogen for lettuce growth, indicating a need for further research on macronutrient availability and alternative N sources.
CompostOrganic cycleFood lossMethod for Zero-Waste Circular Economy Using Worms for Plastic Agriculture: Augmenting Polystyrene Consumption and Plant Growth
2021Samuel Ken‐En Gan, Ser-Xian Phua, Joshua Yi Yeo, Zealyn Shi‐Lin Heng, Zhenxiang Xing · Methods and Protocols · Global
This study investigated using mealworms and superworms to consume polystyrene (PS) and their frass as plant fertilizer. Researchers found that small amounts of sucrose and bran increased PS consumption by the worms. Superworm frass, in particular, supported better growth and rooting of dragon fruit cacti over a fortnight compared to mealworm frass and control media. These findings suggest worms could offer a zero-waste solution for plastic degradation and urban farming.
Organic cycleCompostClimate changeLocal food loop in the capital city / by Jennifer Jevons, Kate Walmsley and Rory Lenihan-Ikin
2021Jennifer Jevons · · New Zealand (Wellington)
The work of Kaicycle, an urban farming initiative located on Wellington City Council land in New Zealand, was spotlighted. This initiative aims to help the community by improving awareness of soil health, advocating for food waste minimization, growing produce, and practicing regenerative composting. Kaicycle recycles food scraps from the community, composts using anaerobic microbes, and produces vegetable boxes for sale.
CommunityCompostFood lossOrganic cycle