Research & reports

Irenio Curbelo Tribicio · OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA · Cuba

A research project conducted at the Granja Urbana (Urban Farm) of Sancti Spíritus municipality, Cuba, aiming to apply and evaluate a set of economic and financial analysis tools within the category of "labor force and wages," in order to determine the factors influencing the interrelationship and variation of gross value added (VAB), labor productivity, and average wage. The abstract states only the study's aim and object of analysis; it does not report specific findings or figures from the evaluation.

Do Thuy Trang, Kåre Mølbak, Phung Dac Cam, Anders Dalsgaard · Tropical Medicine & International Health · Vietnam (Hanoi)

A cross-sectional study in a peri-urban area of Hanoi, Vietnam, surveyed 400 agricultural households and examined 807 stool samples from 620 adults and 187 children for helminth infections. The study found that 39% of samples were infected with helminths, with Ascaris sp. at 21.6%, Trichuris sp. at 9.8%, and hookworm at 21.8%. Wastewater exposure was not a major risk, but lack of sanitation facilities and use of fresh or inadequately composted human excreta in agriculture were important risk factors for infection.

Alex Thornton, Etienne Nel · Africanus Journal of Development Studies · South Africa (Peddie)

This study investigated the significance of urban and peri-urban agriculture (UPA) as a livelihoods strategy in Peddie, Eastern Cape province, South Africa, based on a PhD study. The findings indicate that UPA is not as significant or widely practiced as often assumed, despite its potential to address food insecurity and generate income. Its development has been slowed by various structural historical and socioeconomic barriers, limiting its current impact.

Bertha Camacho Tuckermann · Knowledge Management for Development Journal · Cuba

An action-research study within an Urban Agriculture project in Cuba identified challenges in integrating learning and change into the monitoring and evaluation (M&E) of development projects. The main challenge was that the project team did not recognize M&E as a learning tool, believing results could be used against their work. A lack of time for learning and knowledge sharing was another observed challenge. To address these, resistance was overcome through dialogue, reflection, and action, leading to team empowerment, and the role of an external facilitator proved key in steering the learning process.

Barbara Matthys, Andres B. Tschannen, Norbert T. Tian‐Bi, Hermann Comoé, Salia Diabaté, Mahamadou Traoré, Penelope Vounatsou, Giovanna Raso, Laura Gosoniu, Marcel Tanner, Guéladio Cissé, Eliézer K. N’Goran, Jürg Utzinger · Tropical Medicine & International Health · Côte d'Ivoire

A cross-sectional survey was conducted in urban farming communities in Man, western Côte d'Ivoire, involving 113 farming households (586 individuals) and 21 non-farming households (130 individuals). The prevalences of S. mansoni and hookworm in farming households were 51.4% and 24.7%, respectively. Risk factors for S. mansoni included close proximity to the Kô River, water contact with irrigation wells and ponds, and low education attainment, while risk factors for hookworm included living in smallholder irrigated rice plots or large rice perimeters, using domestic well water, and low socioeconomic status.

Craig J. Thompson, Gökçen Coskuner-Balli · Journal of Consumer Research · Global

This paper argues that the corporatization of the organic food movement, typically seen as co-optation, can instead generate a countervailing market response. This response actively promotes the oppositional aspects of a counterculture that are attenuated by commercial mainstreaming. The study analyzes community-supported agriculture (CSA) as an example of this response to corporate co-optation.

Viola Devasirvatham, P. S. Cornish · International Journal of Water · Australia

Peri-urban horticulture in Australia requires irrigation for year-round vegetable production. Subsurface Drip Irrigation (SDI) offers higher water use efficiency and crop yields, with the potential to reduce environmental risks from drainage and runoff. However, SDI has potential disadvantages, including poor germination or crop establishment and uneven wetting patterns. Research is needed to solve these problems and enable environmentally acceptable vegetable production.

Zhang Xue-mang · Journal of Beijing University of Agriculture · China

This paper addresses the slow development of agricultural technology in Wuhan City, China. It states that Wuhan needs to import advanced agricultural technologies, research and disseminate techniques for fish and fowl culture, vegetable growth, and agricultural product processing. The paper emphasizes the necessity to improve modern distribution quality and strengthen government service and management in agricultural technological innovation, highlighting a current governance deficiency.

Bernard Keraita, Flemming Konradsen, Pay Drechsel, Robert Clement Abaidoo · Tropical Medicine & International Health · Ghana

The effectiveness of low-cost irrigation methods (drip irrigation kits, furrow irrigation, and watering cans) in reducing contamination of lettuce irrigated with untreated wastewater in urban farming in Ghana was assessed. Analysis of 396 lettuce, 72 soil, 15 poultry manure, and 32 water samples revealed that lettuce irrigated with drip irrigation kits had the lowest contamination levels, with an average of 4 log units per 100g fewer thermotolerant coliforms than those irrigated with watering cans. However, drip kits often clogged, required lower crop densities, and restricted other routine farm activities.

Lynn A. Staeheli, Donald W. Mitchell · · United States (New York City)

This book explores the complex relationship between power, politics, and public space across various US cities, including Washington, D.C., Santa Fe, San Diego, Syracuse, and New York City. Chapter 5 specifically addresses the struggle for public access and control in New York's community gardens. The work reveals challenges in governance and public access within these urban spaces.

F Ortega Sastriques, Rosa Orellana Gallego · Revista ciencias técnicas agropecuarias · Global

In many cities, the high price and limited availability of potable water necessitate considering irrigation with poor quality water, such as saline or alkaline waters, in urban agriculture. This paper considers aspects of irrigation with poor quality water, including risks like contamination.

F Ortega Sastriques, Rosa Orellana Gallego · Revista ciencias técnicas agropecuarias · Global

In many cities, potable water is expensive, and its availability is limited and will decrease in the future. Urban agriculture is an aspect to consider in this context.

F Ortega Sastriques, Rosa Orellana Gallego · · Global

Due to high prices and limited availability of drinking water in many cities, urban agriculture will require the use of alternative water sources. Groundwater and surface currents near cities are typically polluted, and this paper points out aspects to consider for safe irrigation using sewage water.

Juliana Arruda, Nilson Antonio Modesto Arraes, Arruda, Juliana, Arraes, Nilson Antonio Modesto · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Brazil

Since 1997, the Municipal Chamber and the executive branch in Campinas, São Paulo state, Brazil, have signaled an intention to place urban agriculture on the political agenda through legislation and regulations governing the Campinas Community Vegetable-Garden Program (CVP). Based on exploratory analysis and interviews conducted in 2005 with program managers, together with documentary sources, this study examined the management of the CVP to inform possible reformulation of the municipality's urban and peri-urban agriculture policy. The analysis found an almost total disconnection between the CVP and the municipality's education, health, and social-action policies.

이민수, 박덕병, 황대용 · 농어촌관광연구 · South Korea

A cost-benefit analysis of Sunchang County's 2007 pilot "allotment garden with log house" program (family farm-stay plots), launched by South Korea's Rural Development Administration in JeonBuk Province, using the county's internal records and interviews with project managers. The analysis found the program to be an inefficient business with a weak cost-benefit structure that produced a negative net benefit: at an assumed 6.5% discount rate, net present value was estimated at -262 million won, with a benefit-cost ratio of 0.70 and an internal rate of return of 2.7%. The authors nonetheless conclude the program is worth maintaining as part of the government's balanced regional development policy.

Shane R. de Solla, Pamela A. Martin · Environmental Toxicology and Chemistry · United States

Because many reptiles oviposit in soil within agricultural landscapes, this study evaluated the toxicity of two commonly used nitrogenous fertilizers — urea and ammonium nitrate — to snapping turtle (Chelydra serpentina) egg survivorship. Eggs were incubated, unmanipulated and under ambient conditions, in a community garden plot treated with urea at realistic rates up to 200 kg/ha in 2004 and ammonium nitrate up to 2,000 kg/ha in 2005, and separately in covered laboratory bins designed to minimize nitrogen loss through volatilization or leaching. In the field, neither urea nor ammonium nitrate affected hatching success or development, despite ammonium nitrate showing overt toxicity to native plants. In the laboratory, however, both fertilizer exposures reduced hatching success, lowered body mass at hatching, and reduced post-hatching survival compared with controls. The authors attribute the field's lack of toxicity to leaching and atmospheric loss of nitrogen in soil, and conclude that nitrogenous fertilizers likely have little direct impact on turtle eggs deposited in agricultural landscapes.

Mure Agbonlahor, S. Momoh, A. O. Dipeolu · International Journal of Vegetable Science · Africa

A sample survey of 242 urban vegetable farmers conducted through March 2006 examined production efficiency and its determinants in fadama agriculture — flood-plain cropping of short-duration crops on low-lying, seasonally flooded land — in urban southwestern Nigeria, using a stochastic frontier model. Mean farm size was 0.54 hectares and mean producer age was 42.6 years, while mean technical efficiency was only 74.36%, with the main sources of inefficiency identified as labor employment and the use of land and seed/cultivar resources; the most common crop combination was Telfaria occidentale, Amaranthus hybridus and Zea mays.

Randall Walsh · Journal of Urban Economics 61(2): 319-344 · United States

Uses a locational-equilibrium model that treats both privately held open space and land-conversion decisions as endogenous to evaluate the metropolitan-wide impact of open-space policy. Shows that once endogenous adjustment of private open space is allowed for, expanding public preserves can actually reduce the total quantity of open space across a metropolitan area. Also finds that different strategies for spending the same open-space budget have markedly different land-use and welfare consequences.

Stephanie Buechler, Gayathri Devi Mekala, B. Keraita · Victoria University Research Repository (Victoria University) · Global

This 2006 global study from Victoria University discusses wastewater use in urban and peri-urban agriculture for crop production and aquaculture, noting its role in generating livelihoods and providing cheap produce. However, the study emphasizes that clear policy guidelines and careful research are needed to prevent potential negative impacts on human health and the environment from wastewater reuse.

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.

Adolphe Monkiédjé, Michael Spiteller, D. Fotio, Premasis Sukul · Journal of Environmental Quality · Cameroon (Yaounde)

This study evaluated the effect of different land uses on soil health indicators in peri-urban agricultural areas of Yaounde, Cameroon, by comparing five tilled sites with native forest land. While most cropped land showed higher levels of many soil health indicators, cultivation of crops like corn and sugarcane significantly impacted native soil quality. Specifically, phenol oxidase, microbial biomass C/organic C, and microbial biomass C/microbial biomass P were negatively affected, indicating negative management impacts on soil health.

Barbara Matthys, Penelope Vounatsou, Giovanna Raso, Andres B. Tschannen, EMMANUEL GBEDE BECKET, Laura Gosoniu, Guéladio Cissé, Marcel Tanner, ELIÉZER K. N’GORAN, Jürg Utzinger · American Journal of Tropical Medicine and Hygiene · Côte d'Ivoire

This study investigated malaria risk factors in urban farming communities in a medium-sized town in Côte d'Ivoire, conducting two cross-sectional surveys among 112 households across six agricultural zones. The overall prevalence of Plasmodium falciparum was 32.1%. Findings indicate that specific crop systems and agricultural practices may increase the risk of malaria in urban settings of tropical Africa.

Alice J. Hovorka, Damell Smith, R. van Veenhuizen · · Global

This article argues that a gendered perspective on urban food security is essential to understand dynamics shaping food production and marketing in urban centers. It highlights that failing to explore women's distinct roles risks leaving gender inequities and food supply hindrances unaddressed, countering the invisibility of women's work often assumed as automatic domestic duties. The article emphasizes women's significant role in domestic food supply, even in societies with minimal household food production, citing examples like Latin American women organizing to address urban hunger.

Kigumure Buhindwa · Zenodo (CERN European Organization for Nuclear Research) · Rwanda (Kigali)

This study investigated malaria prevention activities in Kigali community gardens, Rwanda, through Community Health Volunteers (CHVs). A mixed-method approach, combining qualitative interviews and quantitative surveys, collected data on CHV activities and health outcomes. CHVs conducted weekly health screenings, reaching approximately 80% of the targeted population, and malaria prevalence dropped by 25% after six months. However, challenges included limited resources and inadequate training for CHVs, indicating that sustained support and additional training are necessary for long-term impact.

Astrid Mendez, Paulo Cseri Ricardo, P Jeny Pérez, Callejas Hernández, Osvaldo Campos · DOAJ (DOAJ: Directory of Open Access Journals) · Cuba

This introductory study in Arroyo Naranjo municipality, Cuba, examined the use of Luyanó effluent wastewater for irrigation in urban agriculture. The wastewater was classified as low contamination based on BOD5 and COD values and posed no toxic contamination risk to soil or environment. However, it should not be used without prior treatment for direct consumption crops due to its microbial load. Experimental plots with carrot, radish, and marigold showed high agricultural yields, and radish harvests had no bacterial contamination.