Research & reports

Mary M. Gardiner, Caitlin E. Burkman, Scott P. Prajzner · Environmental Entomology · United States

This article discusses the ecological value of urban vacant land in the United States, particularly its role in supporting arthropod biodiversity and ecosystem services. It notes that vacant lands can offer opportunities to preserve declining species and restore ecosystem functions. The article emphasizes the need for quantifying the current ecological value of vacant land and assessing how changes in its ecosystem management affect biodiversity and ecosystem processes, with a specific focus on arthropods.

E. N. Ward · SMARTech Repository (Georgia Institute of Technology) · United States

This paper aimed to assert that urban agriculture provides economic and environmental benefits to cities, specifically identifying ways the City of Atlanta could leverage these benefits. It tested the hypothesis that Atlanta can economically benefit by establishing urban agriculture as a land use, using a literature review, scaling data from other cities to Atlanta, and land suitability analysis. The analysis indicated that urban agriculture offers advantages in waste management, public land management, and stormwater management, demonstrating it as an economically viable movement providing social, environmental, and economic benefits.

Marisa DeCandido · Syracuse University Libraries (Syracuse University) · United States (New York City)

This project describes the "green sisters" movement and its presence at Homecoming Farm, a Community-Supported Agriculture project in Amityville, New York. The green sisters movement involves Catholic nuns dedicated to environmental education and sustainability, exemplified by Homecoming Farm, an organic farm created in 1992 by the Sisters of Saint Dominic. The story is presented through a five-part news series, based on six visits and interviews with eleven individuals at Homecoming Farm in the summer and fall of 2012.

Maxine J. Levin · Soil Horizons · United States

This commentary highlights a growing demand for soil information for green economy initiatives and climate change adaptation over the last 25 years. Despite this, USDA's funding and technical support for soil surveys in urban and nonfarm areas have been inconsistent and, in some places, nonexistent. The author argues for the vital role of modern soil surveys in addressing current needs.

Benito Rodríguez Haros, Enriqueta Tello García, Salvador Aguilar Californias · DOAJ (DOAJ: Directory of Open Access Journals) · Mexico

This paper describes "Un pasito en grande," an agroenvironmental vegetable garden established five years ago at Colegio Ateneo nursery school in Tezoyuca, Mexico, where agrochemicals are forbidden. The garden, involving children and parents, aims to address the erosion of knowledge related to food production and safety. It has become a space for ecological and environmental awareness, spreading to other educational settings and operating on principles of ethics and permaculture.

Marlene Wurfel · Earth Common Journal · Canada (Edmonton)

This article presents a case study of the Parkallen Community Garden in Edmonton, Canada, which began its first growing season in Spring 2012. The garden transformed an unused strip of lawn into a communal "edible food forest" and won the City of Edmonton's top community gardening award in its first year. The study details how the permaculture design was implemented and interpreted within the gardening community.

André Ganzarolli Martins, Ana Paula Tridapalli de Almeira · Cadernos de Agroecologia · Brazil

A report on nearly two years of small-scale agroecological seed production through a community garden project on the central campus of the Federal University of Santa Catarina in Florianópolis, Brazil. Seeds were cultivated within small agroecological and agroforestry systems, producing carrots, lettuce, sunflower, beans, green manure crops and others; harvest and storage details are described as crucial steps requiring special attention. The report states that seed production was fundamental to sustaining the plantings and, through donations, supported other urban agriculture and agroecology initiatives.

Nicholas A. Read · OhioLink ETD Center (Ohio Library and Information Network) · United States

A field-trial study conducted in the United States, where small-scale urban agriculture has become more prevalent due to the availability of abandoned property and demand for locally grown produce. Weed suppression is described as a major concern for urban growers, with mulch valued as an inexpensive, readily available control method. Black plastic mulch, the industry standard, is impermeable and difficult to remove and dispose of; newspaper end-rolls (unprinted remains from newspaper printing) are proposed as an alternative that is permeable and biodegradable but have a high C:N ratio that can reduce soil fertility and crop growth. Because plant residue alone requires large quantities for adequate weed suppression, combining newspaper with plant residues is proposed as a way to achieve adequate suppression with less material and a lower C:N ratio. The study's objective was to compare two continuous sheet mulches — newspaper and black plastic — with and without an underlying particulate mulch of killed cover crop, in field trials conducted in 2011 and 2012 measuring soil moisture, soil temperature, weed growth, weed removal cost, and collard (Brassica oleracea) performance in a low-input production system. The abstract does not report specific results.

Vanessa Aparecida Camargo, Maria Christina de Mello Amorozo, Marcos Aparecido Pizano · Cadernos de Agroecologia · Brazil (São Paulo)

A study of urban agriculture in Charqueada, São Paulo state, Brazil, georeferenced all 97 cultivated vacant lots in the urban area; 77 were selected for farmer questionnaires characterizing the population and the lots, and a subsample of 30 lots was surveyed in detail for all crops via a guided walkthrough. Results showed 80% of farmers were men over age 50 with low income, though the activity was not essential to their subsistence. Among 75 types of food plants cultivated, cassava (mandioca) was present in over 90% of lots, with a preference for crops requiring little investment. The activity was practiced informally, motivated by a desire to grow plants, without any public or private support.

Germano Laurentino da Cunha, Adriana Celi Alves Martins, Maria José Araújo Wanderley, Raunira da Costa Araújo, Terezinha Domiciano Dantas Martins, Francisca Alexandre de Lima · Cadernos de Agroecologia · Brazil (Solânea)

This project aimed to establish organic vegetable gardens in public elementary and high schools in Solânea, Paraíba, Brazil. Funded by CNPq, the initiative involved installing 14 garden beds with various vegetables in each participating school. Students received mini-courses on organic vegetable production, and participated in making compost and biofertilizers. The target audience demonstrated receptiveness and support for the work.

Shuyi Lu, Mostafa Oraei, Aaron Sangha, Kingson Wong · cIRcle (University of British Columbia) · Canada

This project outlines the components of a rainwater harvesting (RWH) system and five filtration methods, then analyzes two North American RWH projects. It concludes with a triple-bottom line analysis and recommendations for implementing an RWH system in the new Student Union Building (SUB) at the University of British Columbia, which aims for LEED Platinum Certification by 2014. The RWH system is intended to significantly lower water consumption by collecting, filtering, and storing rainwater for uses like irrigating a rooftop garden and flushing toilets.

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.

Heather Burns, Weston Miller · Journal of Agriculture Food Systems and Community Development · United States (Portland)

The Learning Gardens Laboratory (LGL) in Portland, Oregon, a partnership between Portland State University and Oregon State University, develops garden-based education programs to advance sustainable food systems and sustainability education. LGL's pedagogical principles, drawn from permaculture and ecological design, include interdisciplinary and place-based learning. The paper discusses these principles in relation to LGL's educational programs, highlighting the Beginning Urban Farming Apprenticeship and Lane Middle School Garden-Based Education programs.

Jillian Thompson, Christopher C. Obropta · · United States (Newark)

In 2009, the Rutgers Cooperative Extension Water Resources Program, funded by the New Jersey Department of Environmental Protection, implemented stormwater management education and best management practices (BMPs) in Newark, New Jersey. The initiative aimed to reduce combined sewer overflow (CSO) discharges. Through this effort, a formerly vacant lot was transformed into a community garden featuring a 1,550-gallon cistern and a rain garden, with educational training provided to ex-offenders and sixth-grade students.

Josh Beniston · The Knowledge Bank (The Ohio State University) · United States (Ohio)

An experiment on assessing and managing soil quality for urban agriculture was conducted during the 2011 and 2012 growing seasons on demolished vacant urban lots in Youngstown, Ohio. Soil compaction was identified as a primary constraint, with high bulk density values of 1.79 g cm⁻³ for in-ground plots and 1.55 g cm⁻³ for raised beds. Crop yield data from 2011 showed that both compost-amended and compost + biochar-amended plots had significantly greater crop yields than control plots, with compost + biochar plots achieving the highest harvest index values.

Adriana Franklin de Souza da Silva, M. M. da Silva, L. M. de Santana, A. N. Moreira, J. R. B. Pereira, S. A. S. Amorim, C. R. R. S. França, A. P. G. Santos, Rooselvelt Izel Pereira de Melo · infoteca-e (Brazilian Agricultural Research Corporation) · Brazil

This study describes multiple participatory research and technological learning fields concerning alternative control of banana weevils and the management of agroecological gardens in communities of the Brazilian Northeast Semi-arid region. These include projects on the Maria Tereza Project, Senator Nilo Coelho Irrigation Project, community agroecological gardens in Nova Descoberta, Petrolina, PE, chemical characteristics of biofertilizer, adaptation of lettuce varieties, and cultivation of different species using well water.

D. Z. Phillips, Heather I. Sullivan · ISLE Interdisciplinary Studies in Literature and Environment · United States

This collection of essays for ISLE assesses the material aspects of healthy economies, environments, and bodies, arguing that the traditional economic-ecological "health" dichotomy is insufficient. It finds that the determination of "healthy" is complex, as artificial environments can be benign, and even a flourishing community garden can have neglected produce going to waste. The essays explore how a large number of healthy human bodies can be detrimental to healthy environments.

Ryan E. Galt, Libby O'Sullivan, Jessica Beckett, Colleen C. Hiner · California Agriculture · United States (California)

This study investigated Community Supported Agriculture (CSA) operations in California's Central Valley and surrounding foothills, United States. Surveys and in-depth interviews were conducted with 54 CSA farmers and two CSA organizers, focusing on CSA type, economic viability, farmer characteristics, and farm attributes. Findings revealed that 54% of CSAs reported profitability, farmers were generally younger, better educated, and more likely to be women, and farms were small, utilizing agroecological methods.

Alisson Amorim da Silva Aguiar, Sammy Sidney Rocha Matías, Ribeiro Sousa, Rafaela, Roberto Lustosa Silva, Júlio César Azevedo Nóbrega · Dialnet (Universidad de la Rioja) · Brazil (Corrente)

This study evaluated the development of pearl millet on soils with different levels of manure in Corrente, Piauí, Brazil. Conducted in a greenhouse, the experiment used a completely randomized design with four manure percentages (0%, 20%, 40%, 60%) and three replications. Cattle manure significantly affected the number of leaves, plant height, shoot dry mass, and main root length, with the 40% manure dose showing nutrient levels closest to ideal for maximum efficiency.

Kristen McIvor, Craig Cogger, Sally Brown · Compost Science & Utilization · United States (Tacoma)

A study in Tacoma, Washington, evaluated the effects of two biosolids-based soil products, Tagro and GroCo, on soil physical and chemical properties in three urban community gardens over two growing seasons. Amendments were applied at 200 Mg ha−1 dry weight in the first year, with half receiving an additional 200 Mg ha−1 in the second year. Biosolids did not significantly affect total soil metal concentrations, but increased water infiltration rates from 10.1 ± 0.95 ml min−1 to 51–212 ml min−1, decreased bulk density from 1.07 ± 0.01 g cm−3 to 0.51–0.77 g cm−3, and increased total carbon, nitrogen, and available phosphorus. Biosolids addition also decreased soil pH from 6.43 to 5.35–5.75.

Euclides Reuter de Oliveira, Luiz Menini Neto · Revista Brasileira de Plantas Medicinais · Brazil

An ethnobotanical survey in the Manejo settlement of Lima Duarte, Minas Gerais, Brazil, interviewed residents about medicinal plants they cultivate or use. Across 41 household visits, residents cited 100 different medicinal plant species, mostly grown in home yards along with some native to the region; specimens were deposited in the CESJ herbarium at the Federal University of Juiz de Fora. The most frequently cited species included Mentha sp., Lippia alba, and Foeniculum vulgare, used mainly for colds, stomach ailments, menstrual cramps, uterine infections, intestinal worms, kidney problems, and anxiety/stress, with leaves the most-used plant part and infusion teas the most common preparation. The study suggests that establishing a community garden in the settlement could help valorize medicinal plant knowledge, particularly its transmission to younger generations.

Ácacio Figueirêdo Neto, Silvana Belém de Oliveira, Marcos Santos Lima, Mariana Rocha Amorim, Raquel Mota Figueiredo · Revista Semiárido De Visu · Brazil (Petrolina)

This study evaluated the effect of organic compost on the cultivation of "Brasília" carrots and their post-harvest characteristics in a community garden in Petrolina, Brazil. Experiments used compost made from 40% cured goat manure and 60% plant residues. Carrots were harvested 92 days after sowing and analyzed for moisture, soluble solids, titratable acidity, carotenoids, and pulp firmness. Statistical analysis showed significant differences in key physicochemical characteristics between treatments, suggesting organic compost is a promising tool for maintaining carrot quality and nutritional content post-harvest.

Tim Pannkuk, Jacqueline A. Aitkenhead‐Peterson, Kurt Steinke, James C. Thomas, David R. Chalmers, Richard H. White · HortScience · United States (Texas)

This experiment quantified nutrient concentrations and fluxes in leachate from single- and mixed-species urban landscapes at two Texas sites with different irrigation water chemistry. Plant species significantly affected phosphate flux, and irrigation chemistry significantly affected all nutrient fluxes. An interaction between plant species and irrigation chemistry was found for phosphate flux.

Mikhaela Mullins · Lincoln (University of Nebraska) · United States (Lincoln)

This case study at Saratoga Elementary School in Lincoln, Nebraska, aimed to identify children's desires for a garden space. A school garden was constructed, and an after-school garden club was implemented, where participating students drew their ideal gardens. Elements from these drawings were categorized as 'highly desired' or 'somewhat desired' and subsequently integrated into a proposed garden design plan for Saratoga, which utilizes Permaculture design methods for sustainability.

Renato Teixeira de Oliveira · Cadernos de Agroecologia · Brazil (Fortaleza)

This experiment, conducted at the Urban Agriculture Teaching and Research Center of the Federal University of Ceará in Fortaleza, Brazil, evaluated the influence of different container sizes and substrates on andiroba seedling development. Seedlings grown in 24.6 L polyethylene bags showed statistically superior aerial part height, collar diameter, main root length, and dry mass of aerial part and root system compared to those produced in smaller bags after 190 days. Dry masses of the aerial part and roots were also greater for seedlings developed in the substrate containing earthworm humus.