Research & reports

Bismark Osei, Mark Edem Kunawotor, Paul Appiah-Konadu · International Journal of Social Economics · Africa

This study examined measures for achieving a sustainable environment to mitigate climate change in 54 African countries from 2000 to 2020, using panel data and a Cox proportional hazard model. Findings indicate that carbon farming, rooftop gardens, and renewable energy positively contribute to a sustainable environment. However, governance adversely affects the objective of achieving a sustainable environment.

Iván Nocua, Karen del Pilar Galindez, J. Cordero, Astrid Del Pilar Ardila Bernal, Julián Serna, Omar David Guzmán, Cristian Fernando Camargo Muñoz, Mauricio Parra‐Quijano · Agronomía Colombiana · Colombia (Bogotá)

An urban garden was established within a greenhouse at the Universidad Nacional de Colombia, Bogotá campus, to investigate the effects of weeds and compacted soil in a biointensive approach. Over a two-month measurement period, 13 weed species were identified, with Veronica spp. being the most represented, and Poaceae family plants predominant within the orchard. While soil properties improved with the biointensive method and organic material addition, the presence of weeds highlights challenges and limitations in establishing urban gardens.

Radenka Kolarov, Mirjana Ljubojević, JOVANA SUCUR ELEZ, Mirjana Adakalić, BILJANA LAZOVIC, Dejan Prvulović, Sezai Erċışlı, DJORDJE MALENCIC · TURKISH JOURNAL OF AGRICULTURE AND FORESTRY · Serbia

This study compared bioactive compounds in pomegranate genotypes from a continental region (Sremski Karlovci, Serbia) and a Mediterranean urban region (Bar, Montenegro). Analysis of phenolics, tannins, flavonoids, proanthocyanidins, pigments, vitamin C, acidity, pH, and sugars, along with DPPH and ABTS antioxidant tests, revealed that pomegranates grown in the continental area had significantly higher amounts of biochemically active compounds than those from the Mediterranean urban region. This suggests adaptation to continental conditions, with continental samples showing greater antioxidant potential and proanthocyanidins content.

Mahbuba Ferdous · Asian Journal of Advances in Agricultural Research · Australia (Armidale)

This case study investigated non-chemical weed management strategies in a small-scale vegetable garden in Armidale, Australia, through observation and an in-depth, unstructured interview with the garden's convener. Growers primarily used mechanical and cultural methods, including mulching, hand weeding, tillage, and grazing, to manage weed infestation. While mulching with wood chips and hand weeding were considered more effective in minimizing weed competition during critical crop development periods, they could not reach a satisfactory level. Further improvements by integrating several approaches simultaneously are needed for more effective and economical weed control.

Sarah Dimick · Critique Studies in Contemporary Fiction · United States (Minneapolis)

This study reflects on guerrilla gardening and its narratives by intersecting Eleanor Catton’s novel Birnam Wood with descriptions of gardens at police killing sites in the greater Minneapolis metro area. It argues that guerrilla garden infrastructures sprout in the soil of highly unequal power, often in the wake of the fatal exercise of state power, and in the shadow of a foreshortened environmental future. These are DIY infrastructures constructed by people weathering entwined environmental, political, and economic crises in the 21st century.

Tuyet Truong, Khoirunnisa Khuzaimah, H.T.M. Pham, Ho Ngoc Son, Tuan Van Bui, Long Ha · SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY · Vietnam (Son La Province)

A study surveyed 39 local farmers in Buot village, Son La province, Vietnam, to examine their perception of agrobiodiversity and factors influencing the adoption of syntrophic farming in home gardens. The survey found that most farmers understood the importance of agrobiodiversity and were willing to adopt syntrophic farming. However, challenges in capital, market access, and a lack of irrigation systems were identified as barriers hindering their adoption of syntrophic farming.

Posgrado en Ingeniería Agrícola y Uso Integral del Agua, Universidad Autónoma Chapingo, Chapingo, Estado de México, México, Hugo Antonio Fernández, R. Salazar, Posgrado en Ingeniería Agrícola y Uso Integral del Agua, Universidad Autónoma Chapingo, Chapingo, Estado de México, México, E. Fitz-Rodríguez, Posgrado en Ingeniería Agrícola y Uso Integral del Agua, Universidad Autónoma Chapingo, Chapingo, Estado de México, México, I.L. López-Cruz, Posgrado en Ingeniería Agrícola y Uso Integral del Agua, Universidad Autónoma Chapingo, Chapingo, Estado de México, México, Uwe Schmidt, Dennis Dannehl · Tecnología y Ciencias del Agua · Mexico (Mexico City)

Yields and water productivity of romaine lettuce and cherry tomatoes were investigated in 13 urban gardens in Mexico City. Lettuce yields ranged from 0.10 to 1.20 kg m-2 with water use efficiency from 0.21 to 2.93 kg m-3, while cherry tomato yields ranged from 0.25 to 3.40 kg m-2 with water use efficiency from 0.32 to 5.52 kg m-3. Irrigation in these gardens is empirically done using potable water, showing an excess water supply of 0.27 to 0.4 m3 m-2 for a complete cycle of lettuce and cherry tomatoes.

Amelia Nirmalawaty, Tiurma Wiliana Susanti Panjaitan, Dwi Agustiyah Rosida · Abdi Massa. · Indonesia (Surabaya)

Training and assistance for hydroponic vegetable cultivation were provided to PKK women in RT 02/RW 01, Tenggilis Mejoyo Village, Surabaya City. Previous NFT hydroponic training had suboptimal implementation due to limited yard space and insufficient understanding of hydroponic cultivation, particularly in plant nursery and nutrient solution concentration measurement. The current training and assistance successfully improved the participants' knowledge and skills, enabling optimal utilization of aid from the Food Security and Agriculture Office and maximizing the use of limited land for community nutritional needs.

Mansi I. Bhati and R.K. Dubey · Zenodo (CERN European Organization for Nuclear Research) · Global

Urban horticulture, a new concept for growing family-sufficient food in urban and peri-urban areas, is gaining importance. However, environmental challenges for urban farming in urban environments include soil contamination, micro-climate alteration and air pollution, and contaminated water resources. Appropriate guidelines for urban and peri-urban agricultural practices are required.

Victоria Kryuchkova, Vitaly Donskih, Yuri Gorbunov, Tatiana Aniskina, О. С. Волкова · АгроЭкоИнфо · Russia (Moscow)

This 2011-2022 study at the MBG RAS laboratory in Moscow, Russia, assessed 20 wild apple tree species for their landscaping potential. While Malus baccata, M. neidzwedzkyana, M. x zumi, M. sargentii, and M. mandshurica were identified as promising for urban conditions, M. ioensis showed low frost resistance and M. fusca and M. sievesii were susceptible to scab infestation, limiting their suitability for urban gardening in Moscow.

Andrew Millie · Crime Media Culture An International Journal · United Kingdom

This article considered guerrilla gardening, which involves taking on other people’s land without permission. A qualitative study of guerrilla gardeners from the North West of England found that guerrilla gardening is a normalised form of law-breaking. Despite not necessarily being to everyone’s taste and gardeners having an autocratic view of property, it is broadly accepted and welcomed, even by those who enforce the law.

Jonathan Stubberfield, Mads Troldborg, E. Louise Ander, N.M.J. Crout, Scott D. Young, Rupert Hough · Agronomy · United Kingdom

This study investigated the influence of gardening routines on health benefits and risks among 120 urban gardeners in the UK. Participants showed a correlation between autumn/winter gardening activity and fruit/vegetable consumption, with higher physical activity levels and lower BMI than average. However, while gardening offers health benefits, the health risks from gardening on soils mildly contaminated with cadmium and lead may outweigh these benefits, requiring formal consideration within a risk management framework.

Danielle Purkiss, Ayşe Lisa Allison, Fabiana Lorencatto, Susan Michie, Mark Miodownik · Frontiers in Sustainability · United Kingdom

A citizen-science study invited 9,701 UK residents to test how biodegradable and compostable plastics actually degrade in home composting. Many items, including certified products, failed to fully break down; 60% of TUV OK Compost Home-certified items were still clearly visible afterward. The authors conclude home composting is not an effective or environmentally beneficial disposal method for these materials in the UK.

Hayley Q McGough · DigitalCommons - CalPoly (California State Polytechnic University) · Global

This paper investigates why plant façades on buildings frequently die, preventing them from fully realizing benefits like urban heat island reduction and improved air quality. Through interviews with landscape architects, it examines factors for maintaining plant façades and assesses if new approaches, such as earlier integration of landscape architects or biocurtains, can address the high mortality rates. The study highlights that these plant façades often fail, leading to waste and unfulfilled potential.

Anjali Mistry, Manfred Spocter · · South Africa (Cape Town)

A study in a middle-class suburb of Cape Town, South Africa, investigated edible cultivation and garden waste management in domestic gardens. While potential gardening space averaged two-thirds of residential plots, 129 respondents primarily cultivated lawns, not food, with minimal vegetable production. Residents often used private gardening services for waste disposal, and on-site garden waste disposal techniques need promotion.

Luciano Majolo, Deibson Teixeira da Costa, Camila Firmino de Azevêdo · Editora Científica Digital eBooks · Global

This study analyzed the application of fresh coffee grounds as a substrate for arugula seed germination, using concentrations of 0% to 25%. All evaluated characteristics, including emergence percentage, seedling length, and mass, showed a decreasing variation with increasing coffee grounds. Fresh coffee grounds applied directly as fertilizer proved inefficient for arugula in the tested quantities.

Camille Frazier · Hong Kong University Press eBooks · India (Bengaluru)

This paper examines motivations for organic terrace gardening among middle-class individuals in Bengaluru, India, who grow food for home consumption. Gardeners respond to worsening health and environmental conditions, but class and caste inequalities limit their engagement with a broader community of urban food producers. These inequalities restrict the transformative potential of organic terrace gardening as an intervention, indicating a critical finding regarding equity.

Tenri Ulfa, Nurlita Pertiwi · UNM Environmental Journals · Indonesia (Makassar)

This descriptive quantitative and correlational study of 50 respondents in Makassar City examined urban farming behavior and influencing factors. While respondents generally had high environmental knowledge, their environmental attitudes were moderate. 23 respondents with low urban farming activities cited time constraints as a difficulty, despite a significant, strong, and unidirectional relationship found between knowledge, attitudes, and behavior.

Dimas Ganda Permana Putra, Elida Novita, Bambang Herry Purnomo, Diana Nurhayati · DOAJ (DOAJ: Directory of Open Access Journals) · Indonesia (Jember)

A study conducted from May to August 2020 in Jember Regency, Indonesia, investigated the average monthly income of hydroponic farmers. Based on surveys and interviews, the average monthly income ranged from Rp.200,000.00 to Rp. 4,000,000.00. This low income was attributed to most respondents still being in a trial-and-error phase and lacking government assistance.

K. C. Sahu, M. K. Satapathy · International Journal of Agriculture Extension and Social Development · India

This paper discusses rooftop gardens as an alternative for vegetable production in Bhubaneswar City, India. While rooftop agriculture can improve ecosystem services and enhance urban biodiversity, vegetable production activities on rooftops are limited due to multiple challenges that need to be addressed for widespread implementation. Rooftops are not a total solution for food security but can supplement other urban food sources.

Karen Botes, Christina Breed · Acta Structilia · South Africa

This article reviewed three edible living wall case studies in Gauteng, South Africa, focusing on system resilience, economic feasibility, and edible plant possibilities. Interviews were conducted with clients, contractors, and designers. Findings suggested indirect commercial value through customer experience and educational value, but indicated that economic feasibility and resilience need enhancement for improved urban food production.

Susana Toboso‐Chavero, Cristina Madrid‐López, Xavier Gabarrell, Gara Villalba · Environmental Research Communications · Spain (Barcelona)

Implementation strategies for food-energy-water production systems on urban rooftops were evaluated in a typical housing estate in the Metropolitan Area of Barcelona, comprising 201 buildings and 13,466 inhabitants. Residents tended to choose strategies providing energy and water over the food production potential of rooftops. However, environmental assessment indicated that vegetable production alternatives were the least impactful, meeting 42-56% of residents' fresh produce demand and reducing environmental impacts by 24-37 kg CO2 eq m-2 per rooftop per year. This suggests residents were primarily concerned with energy expenses rather than food insecurity or social cohesion.

Maha Deeb, Peter M. Groffman, Manuel Blouin, Sara Perl Egendorf, Alan Vergnes, Viacheslav Vasenev, Donna L. Cao, Daniel C. I. Walsh, Tatiana Morin, Geoffroy Séré · SOIL · Global

This review examines the use of Constructed Technosols (CTs), mixtures of organic and mineral waste, for green infrastructure (GI) in urban spaces. While CTs have high potential to provide multiple soil functions and contribute to urban greening, urban soils are often physically, chemically, or biologically unsuitable for GI features. The analysis suggests that the composition and structure of CTs should be adapted to available wastes and by-products, as well as future land use and environmental conditions, highlighting the need for careful design to overcome existing limitations.

Fatin Natasya Shuhaimi, Nursuriati Jamil, Raseeda Hamzah · Bulletin of Electrical Engineering and Informatics · Global

This study proposed and evaluated two Internet of Things (IoT)-based smart farming system designs for personal use in residential apartments, focusing on humidity and temperature monitoring. After comparing sensor readings (DHT 11 and DHT 22) over three days against actual environmental values, and assessing implementation costs and power consumption, the findings regarding accuracy and costs were inconclusive.

Lauren Chenarides, Carola Grebitus, Jayson L. Lusk, Iryna Printezis · Agribusiness · United States

This study examined household-level participation in urban agriculture (community and home growing) before (2017) and during (2020 lockdown) the COVID-19 pandemic in Phoenix, AZ, and Detroit, MI, using two online surveys and bivariate probit models. It found that considerably fewer individuals participated in community gardens compared to home gardening, and overall participation was lower in 2020 than in 2017. The continuity of individuals' participation in growing food at community gardens and home is fragile, and many urban households' food-growing practices may not yet be mainstream, suggesting other barriers inhibit participation.