Research & reports

Maggie Caroline McGriff · Journal of the Arkansas Academy of Science · United States

This study investigated whether three elementary school garden club programs influenced students' attitudes and behaviors regarding fruit and vegetable consumption. Quantitative analysis using pretest and posttest questionnaires found non-significant results, indicating no significant effect on participants' perceptions of fruit and vegetable consumption. Qualitative analysis of participant interviews also showed mostly non-significant changes in healthy eating, although participants reported positive experiences in other aspects like respect for nature and enjoyment of activities.

Green Hope, River Edge, New Jersey 07661, USA., Hye Jin Keum · Journal of people, plants, and environment · United States

The philosophical background and historical development of the school garden movement in the USA were examined. The movement demonstrated a process of formation, decline, and revival. It began to diminish after World War I and was pushed to extinction by technological advancements in the 1950s, before resurging from the 1990s to address childhood obesity, nature-deficit, and improve academic achievements.

Maeve Bassett · Fordham Research Commons (Fordham University) · Global

Urban gardens are advertised as a solution to limited food access in impoverished areas, but they are not productive enough to globally affect food production and the environment. However, for surrounding communities, urban gardens are cheap and effective solutions for many problems associated with poverty and food deserts, such as obesity, education, social interactions, income supplementation, health issues, dangerous neighborhoods, and refugee assimilation.

Katherine Luke · D-Scholarship@Pitt (University of Pittsburgh) · United States (Pittsburgh)

This study used a door-to-door survey in six Pittsburgh, Pennsylvania neighborhoods to measure the impact of community gardens on residents' perceptions of food access. It found that many gardeners do not consider gardening to improve their personal food security, and despite geographic proximity and expressed interest, community garden participation rates were low. Social and emotional barriers, including lack of gardening knowledge and racial prejudice, appeared to prevent residents from becoming active participants.

Hee Soo Kim, Hyun‐Kyung Kang, Seung Jun Back · Journal of people, plants, and environment · South Korea (Seoul)

This research analyzed user satisfaction and preferences for hotel rooftop gardens in Seoul and Incheon, South Korea, to propose renovation plans. Customer satisfaction analysis showed that C Hotel and P Hotel in downtown Seoul had lower satisfaction regarding plant numbers and variety compared to H Hotel in Incheon. User preferences indicated a desire for multi-functional green spaces that host cultural and community events and offer physical exercise opportunities.

Jenny Calabio, Ma. Luisa Albacete · WVSU Research Journal · Philippines (Iloilo City)

This study, conducted from July 2007 to July 2008 at the Urban Agriculture Demonstration Site in La Paz, Iloilo City, evaluated soil media and ameliorants for container-grown green onion, pechay, and tomato. Pure compost was found to be the best medium for increasing yields. However, the use of IMO and rice hull as soil ameliorants did not increase yields for the three tested vegetables, and rice hull generally reduced pechay yields.

Jennifer E. Reeves · OhioLink ETD Center (Ohio Library and Information Network) · United States (Cleveland, Ohio)

This two-year study in Cleveland, Ohio, USA, investigated urban soil health via nematode food web analysis and crop productivity via tomato fruit yield in urban gardens. Market gardens showed significantly more soil organic matter, nitrogen pools, and nematode presence than community gardens in both 2011 and 2012. However, despite these differences, there was no significant difference in the total yield of tomatoes per square meter between market and community garden types in either year. Gardens with raised beds had significantly more soil moisture content and soil organic matter than those with flat beds.

Simon Mariwah, Jan-Olof Drangert · Waste Management & Research The Journal for a Sustainable Circular Economy · Ghana

A study in a peri-urban agricultural community in Ghana explored attitudes towards sanitized human excreta as fertilizer, collecting data from 154 households. It found a general negative attitude towards fresh excreta and its handling. While residents accepted excreta could be used as fertilizer, they were unwilling to use it on their own crops or consume such fertilized crops.

Stephen Odede. Shisanya, Sheryl L. Hendriks · Development Southern Africa · South Africa

This study evaluated the contribution of community gardens to alleviating food insecurity for 53 community gardeners in Maphephetheni, KwaZulu-Natal, South Africa. Using the Household Food Insecurity Access Scale, it was found that 89% of these households were anxious about food supplies, consumed insufficient food, and were severely food insecure. Additionally, 72% consumed poor quality food. Community gardens were unable to solve the problem of food insecurity, but their contribution to consumption cannot be entirely ignored.

Sinan Koont · University Press of Florida eBooks · Cuba

An assessment of Cuban urban agriculture's production and distribution outcomes finds that the most successful subprogram is fresh vegetable production, which has grown rapidly island-wide, while other subprograms remain active but less developed. Distribution occurs through thousands of points-of-sale, MALs, self-provisioning, and MAEs, with social consumption at workplaces, hospitals, and schools. Urban agriculture plays a significant role in improving Cuban diets but has not led to food sovereignty; other outcomes cited include employment generation, environmental benefits, and community building.

M.R. Gorham, Tina M. Waliczek, Amy Snelgrove, Jayne M. Zajicek · HortTechnology · United States (Houston)

A pilot study in Houston, Texas, investigated the impact of 11 established community gardens on property crime numbers using 2005 crime data. Statistical comparisons between community garden areas and randomly selected city areas showed no statistically significant differences in the mean number of crime occurrences. The presence of a community garden was not found to be a predictor of a lower crime rate for a neighborhood.

W. Van Averbeke · Water SA · South Africa (Pretoria)

This study in five informal settlements of Atteridgeville, Pretoria, South Africa, used a pilot study, household survey, and multiple case studies to assess urban farming's contribution to food security and household income. While over half of households participated in urban farming, its contribution to total household income and food security was generally modest. Main constraints included lack of space and limited access to irrigation water.

Nigel L. Webb, Harrison Kasumba · Africanus Journal of Development Studies · South Africa

In Ezibeleni near Queenstown, Eastern Cape, South Africa, a sustainable-development framework was used to gather empirical findings on vegetable crop cultivation, covering duration of crop consumption, the value of produce to households, environmental benefits, and social/psychological benefits. Both the scale of cultivation and the benefits obtained were found to be modest, reinforcing prior studies that focused on the actual practice of urban agriculture rather than its hypothetical potential.

Chris Hillbruner, Rebecca Egan · Food and Nutrition Bulletin · Bangladesh (Dinajpur)

A study in Dinajpur, Bangladesh, from 2002 to 2003, investigated the impact of seasonality on food security and nutritional status in approximately 600 low-income urban households. Data collected through surveys and child measurements revealed significantly higher rates of food insecurity, wasting, and inadequate growth during the monsoon season compared to the dry season. While dietary diversity and lost work due to weather were identified as pathways affecting food security, child illness was not found to be a significant mechanism contributing to seasonal nutritional declines.

Jonathan Kingsley, Mardie Townsend · Urban Policy and Research · Australia (Melbourne)

A small qualitative study of members of the 'Dig In' community garden in Melbourne, Australia, explored the social capital benefits of urban community gardens. The study found that garden membership offers benefits such as increased social cohesion, social support, and social connections. However, these benefits do not necessarily extend beyond the garden setting, especially in the early stages of development.

Sarah Lineberger, Jayne M. Zajicek · HortTechnology · Global

This study evaluated the "Nutrition in the Garden" program's effect on students' attitudes and behaviors regarding fruit and vegetables. While students' attitudes towards vegetables and fruit/vegetable snacks became significantly more positive after gardening, no differences were detected in attitudes towards fruit. Crucially, students' fruit and vegetable consumption did not significantly improve, remaining at an average of 2.0 servings per day, which is below national averages and recommendations.

M.J. Zwankhuizen, Francine Govers, J.C. Zadoks · Phytopathology · Netherlands

A study in Southern Flevoland, Netherlands, from 1994 to 1996, assessed inoculum sources of potato late blight. It found that 74% of early disease foci in commercial potato fields were linked to nearby infested refuse piles. Infected seed tubers, volunteer plants, and infested allotment gardens appeared to be of minor importance for late blight development in potato fields. However, in August 1994, infested organic potato fields became major mid-season infection sources, spreading the disease to adjacent conventional fields.

A. Mboganie-Mwangi, Dick Foeken · Leiden Repository (Leiden University) · Kenya (Nairobi)

A 1996 study in Nairobi, Kenya, compared the food security and nutritional status of low-income households engaged in urban agriculture with those not farming. It found that urban farmers primarily produced for home consumption and faced theft as a major problem. While the Undugu Society Urban Agriculture Project (USUAP) group showed better food situations and higher energy and protein intakes than other groups, all three groups had inadequate energy intake on average. The long-term beneficial effect of urban agriculture on nutritional status was negligible.