Research & reports

E. Elizabeth Henderson, Robyn. Van En · · Global

This book serves as a citizen's guide to Community Supported Agriculture (CSA). It covers the context of CSA, how to get started, organization, food aspects, various models, and its future. The guide also includes CSA resources, references, and an index.

Ma. Neftalí Rojas-Valencia, Ma. Teresa Orta de Velásquez, Víctor Franco · Linnaeus Eco-Tech · Mexico (Mexico City)

This study investigated the efficiency of applying organoponic techniques to urban crops in Mexico City, utilizing organic compounds, recyclable solid waste, homemade organic fertilizers, and treated wastewater. Three wastewater disinfection methods were tested: Ozone, APT, and a combination. Results showed that Ozone not only disinfected wastewater but also contributed oxygen and nutrients to the soil, reducing the need for chemical fertilizers. Ozone also reduced infection risk by eliminating pathogenic microorganisms and increased plant growth.

Pyung Sub Yoon, 이자희, 유병열 · · South Korea

This study examined plant adaptation in a low-management rooftop garden called Choroktteul, focusing on 29 species of herbaceous plants. It identified 30 woody and 22 herbaceous species with good adaptation, and 5 woody and 43 herbaceous species with bad adaptation.

Valeria Olivera · · Cuba (City of the Havana)

This study surveyed producers in urban and peri-urban agriculture settings in Cuba to identify low-growing plant species commonly used for hedges in agroforestry systems. The surveys revealed 13 species across 9 families utilized as hedges. In the City of Havana, Marpacifco (Hibiscus rosasinensis), Bugambilia (Bougainvillea glabra), and Muralla (Murraya paniculata) were most frequently used, while in rural areas, Cardona (Euphorbia lactea), Tuna (Opuntia dillenii), and Itamo real (Pedilanthus tithymaloides) were more common.

A.J. Visser, J.E. Jansma, A.J.G. Dekking, M.J.M. Klieverik · Socio-Environmental Systems Modeling · Europe (Netherlands)

A guide compiling the experiences, learning moments, and tips of those involved in urban agriculture initiatives in the Netherlands, along with an indication of what is needed to further develop urban agriculture in the country.

Carla Ellen Lima Lemos, Eduardo Sevilla Guzmán · REVISTA BRASILEIRA DE AGROECOLOGIA · Argentina

A research note from Rosario, in southern Santa Fe province, Argentina, focused on migrant groups who moved to Rosario from Argentina's northern provinces over the past twenty years, some from the historical Guaraní cultural sphere, bringing agricultural work experience along with their language. Building on a history of resistance to industrial models of nature management through the Ligas Agrarias and, after repression under military dictatorship, work in traditional subsistence gardens within popular cooperativism, the paper sets out to open a line of research at CEPAR testing the hypothesis that Guaraní management forms exist in Rosario's community organic gardens. If supported, this could be termed a "Rosario agroecological gardening style"; the urban agriculture model that has taken shape is described as arising from the interaction between immigrant groups' knowledge and modern conventional agronomic technique.

Kristin McGee · Deep Blue (University of Michigan) · United States

"Community Seeds" is a handbook providing basic information on gardening and starting community garden projects for community members, church members, young people, and schools. It covers definitions, getting started with community gardening, basic gardening skills like design, composting, and vegetable gardening, and how gardening can build community through farm-to-school programs, community supported agriculture, and marketing produce. The handbook also lists Internet and reading resources.

Robin Vande Zande · International Journal of Art & Design Education · Global

This article outlines important concepts for teaching young people about regeneration design and the future of our changing environment. Three regeneration principles adhered to by city planners, architects, and product designers—smart growth, sustainable development, and new urbanism—are highlighted as a common thread in restructuring efforts for cities and buildings to be aesthetically, economically, and ecologically healthier places for human and non-human life.

· BMC Plant Biology · Global

A technical report presenting build plans and circuitry to inexpensively fabricate tunable red-green-blue LED arrays, with two fixture designs (small-scale and expandable growth-chamber versions) for adjustable plant lighting.

Yali E. Woyessa, Etheresia Pretorius, Pieter S. van Heerden, M. Hensley, L. van Rensburg · WIT transactions on ecology and the environment · South Africa

This field survey in the Modder River basin, South Africa, investigated the potential expansion and implications of a rainwater harvesting technique introduced to small-scale farmers. While a rapid spread within home yard sizes was expected, no significant spread to community gardens or beyond was anticipated in the short term. This limitation was attributed to socio-economic constraints, including poverty and a lack of appropriate tools and basic farming skills.

James R. Allen, Allen, James R. · AgEcon Search (University of Minnesota, USA) · United States

This study compared the feasibility of using composted yard waste and cow manure versus commercial fertilizer (10-10-10) as soil amendments for cool and warm season vegetable crops in urban gardens. Composted materials were applied at 44,800 kg/ha and fertilizer at 336 kg/ha. Most varieties produced yields equal to or greater in compost-amended plots than in fertilizer-treated plots, with significant varietal differences observed. For example, onion yields were 24% higher and tomato yields were 44% higher in compost-amended plots in specific experiments.

Kwang-Ja Bang, Jin-Hee Ju, Sun-Hae Kim · · Global

This study, conducted from March to September 2002, investigated the growth response of five native plant species (Chrysanthemum zawadskii, Sedum middendorffianum, Thymus quinquecostatus, Allium senescens, Dianthus superbus) to artificial substrate soil depths (5 cm, 10 cm) and irrigation periods (non-irrigation, 1, 2, 3 weeks) for rooftop gardens. Sedum middendorffianum and Allium senescens showed 0% mortality regardless of soil depth and irrigation, making them highly suitable. Chrysanthemum zawadskii, Dianthus superbus, and Thymus quinquecostatus generally performed better with 10 cm soil depth, suggesting a minimum viable depth over 10 cm for these species.

· Irrigation and Drainage · Sudano-Sahel (Niger)

Documents the development of a low-pressure, low-cost drip irrigation system (the African Market Garden) for smallholder growers in the Sudano-Sahel.

Naser I. Faruqui, Odeh Al-Jayyousi · Water International · Jordan

This paper describes a pilot project in Tufileh, Jordan, that allowed poor residents to reuse untreated household greywater in home gardens. Women in the community used small revolving loans to implement simple greywater recovery systems and set up gardens. The project enabled the community to offset food purchases and generate income by selling surplus production, saving or earning an average of 10% of its income. An environmental impact assessment demonstrated that the quality of the untreated greywater was adequate, and the negative impacts on soil and crops were negligible.

Nyuk Hien Wong, Vi Ling Wong, Yu Chen, Siew Eang Lee, David Cheong, Guan Tiong Lim, Chui Leng Ong, Angelia Sia · Architectural Science Review · Global

This study explored the potential of rooftop gardens to reduce heat gain into buildings and modify ambient conditions through plant photosynthesis and evapotranspiration. Results suggest that rooftop gardens can effectively cool the immediate ambient environment by 1.5°C. Surface temperature readings from rooftop gardens were lower than those on barren concrete rooftops, indicating improved thermal insulation in the presence of plants. However, high relative humidity was also observed in rooftop gardens due to plants, requiring adequate natural ventilation to prevent discomfort.

Feng We · · United States

This article details the landscape philosophy of Karl Linn, a landscape architect, through his project practices. It discusses the inevitability and importance of establishing a citywide system for environmental self-help, which is common in US community gardens.

I. Sandoval, Marco López, M. Stefanova, B. Bernal, Mario Oswaldo Siles Neyra, Daniela Rodríguez García, F. Rodríguez · · Cuba

This study identified major fungal species causing damping-off in tomato seedlings in Cuba, with Rhizoctonia solani present in 50% of samples, Phytophthora parasitica in 41%, and Pythium aphanidermatum in 8.3%. Seed treatment with the antagonist Trichoderma harzianum (strain A34) increased germination to 100% in Floradel, Lignon, Placero, Criollo, and Campbell-28 varieties, compared to 70-80% in untreated ones. This treatment also increased seedling weight and fruit size, and for the Placero variety, it resulted in over 50% higher harvest, yielding a profit of $560.12.

· Water International · Global

Describes a spectrum of drip systems keyed to income and farm size (beginning with a US$5 bucket kit for home gardens) as a means to alleviate hunger and poverty among poor farmers.

· Agricultural Water Management · Global

Presents buried, unglazed porous clay pot irrigation, in which water seeps through the pot wall at a plant-driven rate, as a highly efficient low-cost traditional method well suited to small farmers.

E. Pena, M. V. Carrion · · Cuba

Four experiments were conducted at INIFAT experimental plots on organoponicos (horticulture on organic substrates) in Cuban urban agriculture. The study investigated substrate preparation methods, sources and proportions, fertility maintenance with organic fertilizers, and earthworm inoculation. Key findings indicated that substrates should be mixed homogeneously, and many crops showed better yields with 75% Cachaza mixtures. Decreases in nutrient and organic matter content led to a gradual decline in yield, while earthworm humus application and direct inoculation maintained fertility and increased yields.

Nercy Rodríguez de la Rosa, Raimundo M. Díaz Esquivel, Lissett Gutiérrez Hernández, Susana Pérez Talavera, Francisco M. Pérez Tabares · Alimentaria · Global

This study aimed to establish a methodology for using solar dryers for food and seed preservation under rustic conditions. It was established that condiments and seeds can be dried in approximately 3 days, maintaining their qualities and offering additional sanitary advantages. The manufacturing of solar dryers is very simple and does not require large investments.

Laurie Thorp, Christine D. Townsend · · United States

An ethnographic case study of an agricultural-education garden-based curriculum at an elementary school in the Midwestern United States, seeking a phenomenological understanding of its impact on students and teachers. Data were collected through participant observation, dialogue, interviews, photo elicitation and student work, and analyzed using Lincoln and Guba's constant comparative method. Findings were that the garden: (1) reshapes school culture; (2) serves as a leverage point reversing loss of time, control and place; (3) connects students to experience as an organizing principle; (4) becomes a site for student and teacher self-expression, creativity and innovation; and (5) shifts food's status from a consumable commodity to a portal for communal good.

Stadt Leipzig, Amt für Stadterneuerung und Wohnungsbauförderung · Stadt Leipzig · Germany

The fifth booklet in a series published by the City of Leipzig's 'Careful Urban Renewal' pilot project, addressing vacant lots (Baulücken) created by wartime destruction and East German-era demolitions. It explains how a 'Gestattungsvereinbarung' (usage-permission agreement) between the city and private landowners enables temporary conversion of vacant lots into green space, play areas, or parking without affecting the underlying building rights.

智 藤田, Satoshi FUJITA · Institutional Repositories DataBase (IRDB) · Japan

At Keisen Women's College farm in Japan, the potential of using Low-Input Sustainable Horticulture (LISH) and vegetable gardening as environmental education materials was investigated over 15 years, starting in 1984. The study found that 16 different vegetable varieties could be grown organically, but cucumbers, other fruit/vegetables, and Cruciferae were virtually impossible to grow organically. However, damage could be reduced for some varieties through specific cultivation methods, and the vegetable garden was found to maintain beauty even in cold seasons and provide a suitable hands-on learning experience for environment and food.

Isami Kinoshita, Jin Yoshikawa · Journal of the City Planning Institute of Japan · Japan

This study identified the meaning and role of edible landscapes in urban residential areas by comparing three districts in Japan: Nezu, Taishido, and Kokubunji-shinmachi. Through observation, interviews, and questionnaires, five common meanings and roles were found, including providing fresh food, fostering memories, promoting communication, preserving folk customs, and encouraging ecological thinking despite maintenance challenges.