Research & reports

Norlina Muhammad, Zanariah Kadir, Ismi Arif Ismail, Mohd Mursyid Arshad, Ahmad Aizuddin Md Rami · Pertanika Journal of professional Development and Continuing Education · Malaysia

This qualitative case study examines how employee competencies and organizational support shaped training transfer in the Sustainable Green Neighbourhood Garden Programme run by the Majlis Bandaraya Pasir Gudang (MBPG) local authority in Malaysia. Semi-structured interviews were conducted with six purposively selected employees across departments who participated directly in the three-month program, with data analyzed thematically. Well-structured program design, effective facilitation by agricultural and landscape officers, and organizational coordination supported learning transfer; participants reported gains in technical skills (planting, soil and fertilizer management), self-discipline, teamwork, confidence, motivation, and work attitude, along with strengthened interdepartmental collaboration and reduced work-related stress.

Asri Jum’atul Aziza, Nanik Setyowati, Yulian Yulian, Widodo Widodo, Wuri Prameswari · Asian Journal of Agricultural and Horticultural Research · Indonesia

This two-factor (variety × growing-medium composition) completely randomized experiment, conducted in the Agronomy Laboratory Greenhouse at the University of Bengkulu, Indonesia, tested how cocopeat-to-rice-husk-biochar ratios affect nitrogen uptake, growth, yield, and flavonoid content of mint (Mentha spp.) grown in a drip-irrigated substrate hydroponic system. Three varieties (Spearmint, Chocolate Mint, Apple Mint) were tested against four medium compositions (80% cocopeat + 20% biochar through 20% cocopeat + 80% biochar), analyzed by ANOVA (5% significance) and LSD test. Variety and medium composition interacted significantly on growth parameters: Apple Mint showed the greatest stem diameter at 60% cocopeat + 40% biochar, the highest dry weight and nitrogen uptake at 20% cocopeat + 80% biochar, and the highest flavonoid content at 40% cocopeat + 60% biochar, while Chocolate Mint produced the highest fresh and dry root weights at 80% cocopeat + 20% biochar, showing that response to substrate composition depends on variety.

Beni Hasibuan · Crop Life · Indonesia

This study evaluated the effects of bamboo biochar application and varying concentrations of bamboo vinegar on the growth, sensory quality, and iron (Fe) content of red spinach (Amaranthus tricolor L.) microgreens. Using cocopeat as the growing medium, a 2×6 factorial completely randomized experiment combined biochar presence/absence with bamboo vinegar concentrations of 0, 50, 100, 200, 400, and 800 ppm. No significant interaction between biochar and bamboo vinegar was detected. Biochar application significantly improved overall growth and sensory attributes compared with no biochar. Bamboo vinegar significantly affected plant height and fresh biomass, with the highest responses at 200-800 ppm for height and 800 ppm for fresh weight. Iron content ranged from 202.09 to 481.66 ppm on a fresh-weight basis, and the study notes this water-content-dependent measure limits direct comparison with studies reporting dry-weight values.

M. M. S. Maake, C. A. Mbajiorgu, D. P. Malatji, E. L. Udeh, M. J. Mamashila, Noluyolo Nogemane, N. A. Sebola, Portia Mamothaladi Moshidi, S. Mbizeni, U. V. Ogugua, P. N. Kayoka-Kabongo, France Phiri · Discover Sustainability · South Africa

A survey of 61 participants (mostly women, aged 18-92, mean age 49) in the University of South Africa (UNISA) Community Engagement project in Katlehong township, Gauteng province, South Africa, was analyzed with SPSS descriptive statistics, Chi-square and Friedman tests. Most participants relied on government social grants and seasonal employment, and over 75% were engaged in agricultural activities (72.1% vegetable cultivation, 11.5% field crops, 9.8% poultry). Education, age and gender significantly influenced participation, and training preferences ranked animal production (layers and broilers, mean rank 2.39 and 2.55) and vegetable production (mean rank 1.36) highest.

Ligia Tobar, César Augusto Gutiérrez, Leidy Yurani Villa García, Jonathan S. Pelegrin · Applied Environmental Education & Communication · Colombia

This study examined how a school garden in Vijes, Colombia, functions as a habitat for pollinators and a space for experiential education. Primary school students recorded 208 floral visits across four plots (ornamental, medicinal, fruit, and crop) over three weeks of limited observation time. Visiting activity was dominated by the stingless bee Tetragonisca angustula (49%) and the honeybee Apis mellifera (36%). Pollinators mainly visited the ornamental plot, particularly Zinnia peruviana, and Cucurbita maxima in the crop plot. Participation in the monitoring fostered ecological awareness, teamwork, and appreciation of biodiversity among the students.

Lauren Strumos, L. G. Beaman · Journal for the Academic Study of Religion · Global

Drawing on interviews with 134 community garden members across eight countries, this article examines how individuals, both religious and nonreligious, understand and enact moral relationships with other terrestrial beings at their community gardens. It frames the community garden as a place constituted by human and more-than-human relationships, showing how people make sense of the world from where they are situated, with or without reference to religion or spirituality. Gardeners' relationships are organized into three experiential modes — gardens as places of connection, as places of control and human intervention, and as places of world-repairing or mending the Earth — which are not mutually exclusive and span the diverse lifestances of individual gardeners.

Kerstetter K., Roberts K. J., Trent R., Koch P. A., Casey C., De Jesus-Martin M., Trinidad A., Mampara J., Bacon B. · Journal of Nutrition Education and Behavior · 米国

A pilot study testing whether a multicomponent school garden and nutrition education intervention increases actual school lunch consumption. Students in grades 1–5 from matched pairs of public schools (one high-poverty and one low-poverty intervention school, each paired with a comparison school) were observed with the System of Observational Cafeteria Assessment of Foods Eaten over 13 days across 28 lunch periods, with consumption defined as the percentage of each entrée and side salad eaten. Students at intervention schools consumed 47.5% of the entrée and 44.1% of the entrée plus side salad, against 34.5% and 31.2% at comparison schools; adjusted models showed 0.13 (P = 0.006) and 0.11 (P = 0.01) more portion units consumed, with no significant treatment-by-pair interactions. The authors conclude that a cluster-randomised trial is warranted.

Rofiqoh Purnama Ria, Fitra Fadhilah Rizar, DEDIK BUDAINTA, Marlin Sefrila, Fitra Gustiar · Asian Journal of Agriculture · Indonesia

An experimental study at the Seed Technology Laboratory of Universitas Sriwijaya, Indonesia, conducted in September 2025, tested simple seed priming treatments on four commercially marketed leafy vegetable seed types used in urban farming — butterhead lettuce, red romaine lettuce, green lettuce, and napa cabbage — using a factorial completely randomized design. Seeds received one of four treatments (untreated control, 60°C warm water for 15 minutes, 60% shallot extract for 30 minutes, or 70% coconut water for 30 minutes), and germination was recorded every 6 hours over 48 hours. Warm water priming reduced the time to 50% germination (T50) from 36.69 hours in the control to 18.48 hours, and shallot extract reduced it to 19.38 hours, indicating faster germination; the authors note this still requires validation under nursery or field conditions.

Burton M, Margerison C, Nanayakkara J, Worsley A, Booth A · BMC Nutrition · オーストラリア（全国調査＋ビクトリア州）

School gardens are an effective strategy for food literacy and for promoting healthy eating and environmental health, yet inadequate funding, time and training stop many schools implementing or properly using one. This mixed-methods study surveyed 111 Australian primary school staff online and interviewed 13 Victorian primary teachers. Ninety per cent of respondents worked at a school with a food garden, but how well it was used varied widely. Responsibility for managing and maintaining the garden fell mainly on students and classroom teachers, with some schools relying heavily on volunteers. Healthy eating and environmental sustainability were the usual focus, and gardens also taught life and social skills — but many teachers reported the garden was poorly integrated into the curriculum. Time and funding were the most commonly reported barriers, though many schools showed resilience by drawing on existing community connections and adopting cost-reducing practices. The authors conclude that targeted teacher training, leadership support, community involvement and cost-reducing strategies would help.

農林水産省 · 農林水産省 農村振興局農村政策部農村計画課都市農業室 · Japan

Japan's Ministry of Agriculture, Forestry and Fisheries (MAFF) organizes urban agriculture's roles into six functions: fresh produce supply, farming-experience/exchange opportunities, disaster-prevention open space, green/landscape space, national land and environmental conservation, and food/agricultural education. In a survey of urban residents, about 50% recognized urban farms' role in supplying fresh produce and about 60% expressed interest in buying local produce, while only about 30% saw urban farms as a place for farming experience or exchange. 'Disaster cooperation farmland' — an arrangement re-recognized after the 1995 Great Hanshin-Awaji Earthquake — involves municipalities signing voluntary agreements with farmers to use urban farmland as evacuation space or temporary-housing sites during disasters.

Ajuntament de Barcelona · Ajuntament de Barcelona / Institut Municipal de Parcs i Jardins · Spain

The official page of Barcelona's municipal allotment network, offering 15 allotment sites across the city's ten districts, with plots of 20-40 m2 leased to residents aged 65+ and non-profit organizations. The program formally launched in 1997 with the Can Mestres allotments, though the very first allotment, Hort de l'Avi in Gràcia, dates to 1986 following a resident petition. Plots for individuals are allocated by lottery and for organizations by competition, with stated goals of environmental education and intergenerational coexistence.

· Wikipedia · United States

Brooklyn Grange operates 5.6 acres of organic vegetable and honey production across three rooftop farms in New York City, the largest rooftop farm operation in the city. Founded in 2010, it produces about 80,000 pounds of vegetables and roughly 1,500 pounds of honey annually. The founders launched the business with loans, personal savings, and investors, and the Brooklyn Navy Yard farm was partly funded by a $592,730 grant from the NYC DEP Green Infrastructure Grant Program.

· Wikipedia (ドイツ語) · Germany

This German Wikipedia article on the Edible City movement traces its origin to 2008 in Todmorden, England, where Pamela Warhurst and Mary Clear founded 'Incredible Edible'; by 2017 the UK Incredible Edible Network linked more than 100 groups. In Germany, the association 'Essbare Stadt' was founded in Kassel in May 2009 based on permaculture principles, while Andernach's municipal project began in 2009 and gained nationwide attention after being presented at Berlin's International Green Week in 2014. By 2017 over 140 such initiatives calling themselves 'edible' were found online. Since 2008, Toronto has promoted a comprehensive municipal program including community gardens, education, and food-waste initiatives.

· Wikipedia · United Kingdom

This Wikipedia article covers Incredible Edible, an urban gardening movement started in 2007 in Todmorden, UK by Pamela Warhurst, Mary Clear and others, run on a 'three spinning plates' model of community (public-space growing anyone can pick from), business (supporting local food firms), and learning (food education). As of 2018 there were 120 official UK groups and over 700 worldwide; UK groups reported a 37% year-on-year rise in produce, 9,763 sqm of growing land, 4,861 participants, and 207 events. The project received a £500,000 grant from the Big Lottery Fund.

· Wikipedia · Global

The 'Forest gardening' URL now redirects to a section within Wikipedia's merged 'Agroforestry' article. Per that section, forest gardening is a low-maintenance, perennial, woodland-modeled food production system practiced since prehistoric times in the tropics; horticulturist Robert Hart coined the term and adapted it for temperate climates in the 1980s. The article states Kerala, India has 'no fewer than three and a half million' forest gardens, citing one 0.12-hectare plot found to contain 23 young coconut palms, 12 cloves, 56 bananas, 49 pineapples, and 30 pepper vines.

· Wikipedia · United States

This Wikipedia article covers the Beacon Food Forest, an urban food forest on public land in Seattle's Beacon Hill neighborhood, described as the largest food forest on public land in the United States. Jacqueline Cramer and Glenn Herlihy proposed the concept in 2009; the project received a $20,000 grant in 2010 and a $100,000 development grant in December 2011, with initial planting of 1.75 acres in September 2012. It added 27 P-Patch garden plots in 2014, expanded by 1.5 acres in 2019, and its Food Forest Collective gained nonprofit status in August 2017.

City of Atlanta (AgLanta) · AgLanta (City of Atlanta, official) · United States

This official City of Atlanta (AgLanta) page describes the Urban Food Forest at Browns Mill, a 7.1-acre site in a designated food desert acquired by The Conservation Fund in fall 2016 and developed as Atlanta's first community urban food forest, growing fruit, nuts, vegetables, herbs, and mushrooms for public consumption. It is framed as part of the city's goal to bring healthy food within a half mile of 85% of Atlanta residents by 2022, funded in part through the U.S. Forest Service's community forestry program.

· Wikipedia · Europe

This Wikipedia article on 'city farm' states that an early city farm was set up in 1972 in Kentish Town, London, combining farm animals with gardening space — a combination inspired by children's farms in the Netherlands — and that other city farms followed across London and the United Kingdom. The article does not, however, provide further detail on the origin or history of the Dutch children's farms (kinderboerderij) themselves.

· Wikipedia · Netherlands

This Wikipedia article on Wageningen University & Research states it was founded in 1876 as the Rijkslandbouwschool (National Agricultural School), renamed the Agricultural and Forestry College in 1896 and the National Agricultural, Horticulture and Forestry College in 1904, before becoming a degree-awarding institution named 'Rijks Landbouw Hoogeschool' under the Academic Education Act on 9 March 1918 — a date now celebrated as the university's dies natalis. The article states the university is highly ranked globally in agriculture, ranking 1st worldwide in Agriculture and Forestry in the QS World University Rankings 2022, 19th in Life Sciences in Times Higher Education 2022, and 1st in Food Science & Technology in the Academic Ranking of World Universities 2017. It states the university has about 13,564 students.

· Wikipedia (English) · Singapore

English Wikipedia entry on community gardening in Singapore. The 'Community in Bloom' scheme, launched in May 2005 at Mayfair Park Estate, had grown to over 2,000 community gardens by 2025. The 'allotment gardens' scheme, introduced in 2016, expanded at roughly 300 plots per year from 2016 to 2021 and had exceeded 2,500 plots by 2025. A 2022 survey found 88% of plants grown were edible.

· Wikipedia · United States

This Wikipedia article on Seattle's P-Patch community garden program states the name derives from the Picardo family farm in the Wedgwood neighborhood. It reports about 90 P-Patch locations around the city, which in 2023 donated a total of 33,438 pounds (15,167 kg) of produce to food banks and meal programs. It also describes a 25,000-square-foot (2,300 m2) P-Patch on the roof of a Mercer Street parking garage at Seattle Center, opened in 2012, whose planned 2020 closure was averted following public protest.

· Wikipedia (de) · Germany

The city of Andernach's 'Edible City' (Essbare Stadt) project plants vegetables, fruit, and grain on municipal green spaces under the motto 'picking allowed' (Pflücken erlaubt), letting residents harvest freely. It was first presented in 2010 at the federal 'Entente Florale' competition, where Andernach received several awards, and was subsequently extended to further areas in the city center, along the old city wall, and near the train station.

· Wikipedia · Germany

The Intercultural Garden movement was founded in 1996 in Göttingen, Germany, partly on the initiative of migrant families, with an association formally established in 1998. It began with just three gardens in Göttingen but had grown by early 2006 to about 300 members from about twenty countries, while around the same period thirty independent garden projects existed nationwide with more being created. The Munich-based foundation Stiftung Interkultur coordinates and supports garden projects across Germany.

Prinzessinnengarten Kollektiv Berlin · Prinzessinnengarten Kollektiv Berlin (公式サイト) · Germany

Prinzessinnengarten Kollektiv Berlin has worked on education and participation since 2009. It relocated from its original Moritzplatz site in 2020 and is now based at the Neuer St. Jacobi Friedhof cemetery in Neukölln. Its activities include green-space conservation and community gardening, ecology workshops, running the neighborhood facility 'studio nagelneu' and the cultural event space 'Kiezkapelle', environmental education, guided tours, a café-restaurant, and garden projects for companies, schools, and social institutions.

Edible Schoolyard Project · Edible Schoolyard Project · United States

The official site of the Edible Schoolyard Project, a non-profit founded in 1995 by chef and food activist Alice Waters. Its mission is to use organic school gardens, kitchens, and cafeterias as a teaching tool for nutrition, self-responsibility, and community values alongside academic subjects. It runs its own model programs, Edible Schoolyard Berkeley and Edible Schoolyard Stockton, in addition to providing edible education curricula, teacher training, a public resource library, and a network connecting edible-education programs across the US and abroad.