Research & reports

Abella Alemany, Agèric, Casals Missio, Joan, Macarulla Martí, Marcel, Pintó Espín, Laia, González Atero, Ramiro, Arcas, Verónica, Gassó Domingo, Santiago, Gabarrell Durany, Xavier · UPCommons institutional repository (Universitat Politècnica de Catalunya) · Global

Urban agriculture is gaining prominence globally for promoting environmental sustainability, food security, and social cohesion in cities. While urban cultivation is not new, a recent innovative approach involves integrating agriculture into urban infrastructure, particularly utilizing building rooftops as underutilized spaces with significant potential.

Dr. S.S. Uma Sundara Sood · INTERNATIONAL JOURNAL OF RESEARCH AND ANALYTICAL REVIEWS · Global

The abstract available for this record consists only of publication and indexing information for the journal (International Journal of Research and Analytical Reviews, IJRAR), including its ISSN numbers and listing bodies, and contains no description of the article's subject, methods, or findings.

ER Ramesh Chand, Ridhima Arya, Ravi Pratap Singh, Devi Singh, Vedant Singh · International Journal of Advanced Biochemistry Research · Global

A review article surveys evidence on rooftop vegetable farming's ability to absorb carbon and noise, lower air temperatures on and around roofs, and reduce urban heat-island effects, alongside using composted kitchen waste as a substitute for mineral fertilizers. It cites prior research showing compost can raise soil moisture content, decrease soil erosion, and help manage pests, weeds, and diseases, in place of mineral insecticides and fertilizers currently used in some urban rooftop gardens. The review notes rooftop gardening is a relatively new concept in Bangladesh and is intended to support further study of the practice there.

Heidi Tamayo Ortiz · El Colombiano · Colombia

An article on rooftop terrace gardens in Medellín's Comuna 13, where 37 terraces grow lettuce, basil, chard, kale and European cogollo. The pilot began with five terraces in 2021 and has grown to 25 participating households, mostly women heads of household, including 12 terraces in the San Javier area supported by Fundación Éxito. Produce is sold to restaurants and an Éxito store in Laureles, with workdays capped at 4 hours; the model has been replicated in Bogotá (Ciudad Bolívar) and Cali (Siloé).

Qian J., Pearce J. M. · Designs · Global

Applies the distributed-manufacturing open-source design paradigm to develop four low-cost open-source grow-structure designs targeting root vegetables and bush fruit. The designs are intended for adoption by remote communities with limited or no outdoor growing environment.

· Sustainability · Global

Provides architectural design recommendations for residential rooftop urban agriculture. It addresses integrating low-cost growing infrastructure such as container gardens, raised beds, and vertical gardens onto rooftops.

· Journal of Development Effectiveness · Lesotho

Examines enhancing food security through keyhole gardening, a circular raised-bed structure with a central compost basket. This self-built growing structure was developed by humanitarian organizations to promote household food production in drought-prone settings.

· Agronomy · Global

Assesses the reproducibility of the composting process and the quality of composts obtained under a decentralized municipal solid waste composting scenario.

· Discover Animals · Global

Selects and evaluates the optimal medium for the earthworm Eisenia fetida in sustainable waste recycling.

· Animals · Global

A systematic review arguing that integrating IoT into small-scale aquaponics enhances efficiency and profitability by optimizing resource use and monitoring water quality.

Stevens J.D., Murray D., Diepeveen D., Toohey D. · PLOS ONE · Australia

A novel inexpensive nutrient management system is presented that uses a waterproofed low-cost IoT spectroscopy sensor (AS7265x) submerged in the solution to predict nutrients and recommend adjustment amounts.

· Sustainability · Global

Evaluates crushed brick and crushed concrete of varying particle sizes as extensive green roof substrates through simulated drought and rooftop experiments, turning low-value construction waste into a growing resource.

· Recycling · Global

A scoping review of 68 open-access articles from 24 countries (2012–2022) mapping the reuse and recycling of alternative materials in green roof structures within a circular economy framework.

· Sensors · Global

Compares the accuracy of low-cost versus higher-end soil moisture sensors across various moisture ranges and soil textures, showing that adding an ADS1115 converter improves the error of low-cost sensors.

Aikaterini Kouloumprouka Zacharaki, James Monaghan, Jennifer R. Bromley, Laura H. Vickers · Plants People Planet · Global

This review identifies challenges for strawberry cultivation in urban production systems, noting that new urban farmers often lack the specialist knowledge of commercial growers. Common bottlenecks include plant physiology, pathogen management, choice of propagation material, fertigation, pollination, and environmental requirements. This knowledge gap appears to result in the abandonment of strawberries as a crop of choice in urban systems.

Sun Yeong Lee, H. S. Lee, Yong-Han Yoon, Jin-Hee Ju · Journal of people, plants, and environment · Global

This study analyzed the growth and quality of cherry tomatoes (CTs) and nasturtiums planted at different ratios (CTs only, 2:1, 1:1, 1:2, nasturtiums only) on rooftops and walls in building-integrated urban agriculture. Cherry tomatoes planted alone showed significant growth compared to companion planting. The 2:1 ratio of CTs to nasturtiums (C2N1) resulted in the highest plant weight and sugar concentrations for CTs on rooftops and walls, and nasturtiums also had larger leaves and flowers in this ratio. CTs generally grew better on walls than rooftops when companion planted with nasturtiums.

Moomtahina Rahman, Md. Alauddin, G. M. Mohsin, Md. Amirul Alam, M. K. Rahman · The Journal of Phytology · Global

An experiment investigated the combined impacts of composted poultry manure (CPM) and inorganic fertilizers on tomato growth and yield under rooftop growing conditions. The experiment used a completely randomized design with eight treatments and three replications. NPK fertilizers alone and CPM combined with NPK fertilizers greatly improved tomato plant growth and fruit yield, with maximum yields (68 t ha-1) and economic benefits achieved with 4 t ha-1 CPM and 100% recommended doses of NPK fertilizers.

Luis L. Vázquez · Journal of Clinical and Laboratory Research · Global

This article discusses community agroecology, focusing on the cultivation of medicinal plants in agroecological family and community gardens. It highlights that the use of these plants for treating symptoms and diseases is a common practice. The integration of family and community self-management of medicinal plants into primary care services contributes to sustainability in health management.

Carina Rose Layfield · Teaching and Learning Anthropology · Global

This student essay examines a senior thesis project from Barnard College's urban studies program, advocating for the use of container farms to expand urban agricultural education in career and technical education settings. The author reviews their research process, results, and argument regarding the essential role of Perkins Act funding for such programs.

· Middle East Journal of Applied Sciences · Egypt (Giza)

An experiment in Giza, Egypt, during 2021/2022 and 2022/2023, evaluated celery growth and production in different substrate systems (pot vs. shallow beds) and planting densities (15, 18, 21 plants/m2). Celery grown in pots showed higher values for plant height, leaf number, root weights, head weight, and total yield per m2. For planting density, 15 plants/m2 resulted in the highest plant height, leaf number, root weights, and head weight, while 18 plants/m2 yielded a higher total yield per m2.

Katarzyna Chojnacka, Barbara Widera, Marcel Macarulla, Anastasios Drougkas, Andreu Balastegui, Els Van de moortel, Cansu Iraz Seyrek Şık, Kajetan Sadowski, Joana Fernandes, Ricardo Gomes, Paulo Ferrão · Clean Technologies and Environmental Policy · Global

This study aimed to present interdisciplinary insights on vertical green systems (VGS) design in hot climate zones. Based on an in-depth study of green façade performance in hot climates, methods from various scientific fields were identified that, when combined, effectively protect plants from excessive solar radiation. The main finding was the identification of the most effective combination of methods supporting healthy VGS growth, including façade orientation correlated with appropriate plant selection, shading strategies like passive and kinetic shields, and organic fertilizers supporting plant resilience.

Dragana Šunjka, Sanja Lazić, Slavica Vuković, Siniša Berjan, Hamid El Bilali · · Serbia

This chapter examines the food safety of urban agriculture systems in the Republic of Serbia through selected case studies. It highlights that agricultural products from urban production may be contaminated by polluted soil, water, and air, as well as by pesticides, heavy metals, persistent organic pollutants, nitrate and nitrite, and mycotoxins. The study emphasizes the need for strict control and reduction of synthetic pesticides and other agrochemicals in urban agriculture.

Abila Hena Anayet, Meor Mohammad Hilmi Bin Hamzah, Mohamed Zuhaili Mohamed Najib · Civil and Sustainable Urban Engineering · Global

This study investigated factors affecting compost maturity, specifically temperature, pH, and moisture content, by comparing breakdown rates of eight regulated combinations against an uncontrolled sample. The analysis showed that volume loss over time was critical for determining compost maturity. Combinations with high temperature and varying moisture/pH (High Temp, High Moisture, Low pH; High Temp, Low Moisture, High pH; High Temp, Low Moisture, Low pH) exhibited the most volume loss by day 46, indicating faster maturation than the uncontrolled group.

Riya Mittal, Juhi Sharma · International Journal of Research in Agronomy · Global

This review states that urban horticulture is essential for addressing food security, urban growth, and environmental issues. It examined techniques such as vertical gardening, rooftop gardens, protected cultivation, and Dutch grow buckets, showing they optimize space, reduce resource use, and enhance crop yields. These methods conserve water, increase biodiversity, and enable year-round production.

Md. Khalilur Rahman, Md Alauddin, Tamanna Tabassum Turna, Md. Kaisar Rahman · Journal of Biodiversity Conservation and Bioresource Management · Bangladesh

A pot experiment on a Charfasson town rooftop in Bhola, Bangladesh, assessed the effects of inorganic fertilizers and decomposed poultry litter on boro rice growth and yield. Eight treatments with three replications were used, measuring agronomic parameters every 30 days and yield after harvest. Treatment T7 (3.0 t poultry litter ha-1 + N100P25K90 kg ha-1) resulted in the highest plant height (82.67 cm at 90 days), leaf number (37.67 at 120 days), panicle length (27.17 cm), grains per panicle (153.33), rice yield (51.53 g/pot or 5.67 t ha-1), and B:C ratio (4.51). Treatments T7 and T8 showed statistically identical results, with T7 achieving the overall best performance.