Research & reports

Administrative Region of Central, Thessaloniki, Greece, K.I. Maknea, Nikolaos Thymakis, Julia Nerantzia Tzortzi, A. Asănică · Romanian journal of Horticulture · Greece

Experimental research at eight sites in Thessaloniki, Greece, evaluated the impact of aromatic and medicinal plants on the urban microclimate. Sites with these plants showed a 10-15% temperature reduction compared to non-planted areas, and potted plants on simulated balconies led to a 5-10% temperature reduction. However, areas with dense vegetation and water features exhibited increased humidity and limited air circulation, creating adverse thermal comfort conditions.

Anwar Anwar, Haisyah Haisyah, Permi Kabisatio AS., Wiwi Sawira, Aco Iham Belman, Hildawati Hildawati, Muhammad Fahyu Sanjaya · Jurnal Tarreang Tren Pengabdian Masyarakat Agrokompleks · Indonesia

In Kontar Hamlet, Indonesia, a community service team provided counseling and training on processing banana tuber waste into liquid organic fertilizer. This addressed the issue of abundant unused banana stems. As a result, organic fertilizer was produced, approximately 90% of the community understood the concept of liquid organic fertilizer during counseling, and about 80% knew the production process after training.

Jamilah Muryati, Naufal Hilmizen, Aris Munandar, Endang Koswara · VISA Journal of Vision and Ideas · Indonesia

This Community Service (PKM) project in Indonesia addressed eye fatigue from prolonged digital device use among teachers and students. The method involved counseling and utilizing school gardens as a data source. Distilled hydrosol water from betel leaves, kecombrang, and jasmine flowers was used for eye drops, while betel leaves, kecombrang, ylang-ylang, and bidara leaves were combined for face mist.

Sopian Alviana, Bobi Kurniawan · Jurnal Pengabdian Masyarakat Tekno. · Indonesia

This community service program aimed to empower residents of Griya Pataruman Asri, Indonesia, through hydroponic urban farming, addressing limited agricultural land in urban areas. The program provided training and understanding of hydroponic technology, and distributed 10 hydroponic kits to residents. This initiative sought to utilize vacant land and enable residents to cultivate crops with limited space.

Mohammad Enamul Hoque, Abdullah Al Mamun, Perengki Susanto · International Journal of Climate Change Strategies and Management · Bangladesh

A study collected data from 352 households in two major Bangladeshi cities to predict organic food production intention and behavior in urban rooftop gardens using the value-belief-norm (VBN) theory and theory of planned behavior (TPB). Findings showed that biospheric and egoistic values improved ecological worldview, which, along with awareness of consequences and social norms, predicted personal norms. Personal and social norms forecasted the intention to produce organic food in rooftop gardens.

Elin Montelius · Journal of Risk Research · Sweden

This paper analyzes the utopia of self-sufficiency as a response to risk and uncertainty, particularly focusing on the growing interest in gardening and cultivating vegetables in Sweden. Using intersectional risk theory, it examines how narratives of self-sufficiency function to address ecological risk and uncertainty, and how utopian narratives can contribute to undoing risk.

Puji Lestari Tarigan, Edi Purnomo Sasongko, Haidar Fari Aditya, Wanti Mindari, Ramadhani Mahendra Kusuma, Fitri Wijayanti · Journal of Community Service · Indonesia (Sidoarjo)

This community service activity in RW IX, Griya Bhayangkara, Sidoarjo, East Java, introduced the cultivation of green grass jelly using urban farming methods like polybags and pots to PKK groups. The aim was to highlight the plant's benefits for digestion, blood sugar, and cancer prevention, and its potential for household-scale processing. The activity, which included lectures and practical sessions, resulted in the distribution of grass jelly plants for care and harvesting, with the PKK group finding them interesting and beneficial for various food preparations.

Larissa S. Drescher, Carola Grebitus · EuroChoices · Europe

This study investigated the link between growing one's own food and dietary quality, using the Healthy Food Diversity Index, Berry-Index, and a produce consumption indicator. It found that growing food at home and in community gardens is associated with the highest fruit and vegetable consumption, while not growing any food is associated with the lowest produce consumption. Overall, the results indicate that growing food is linked to higher dietary quality values, suggesting potential health benefits from home and community gardens. The negative association between not growing food and diet quality highlights a need to promote food-growing programs.

Muhammad Nurul Fadel, Intan Adevia Rosnarita, Bintari Tri Sukoharjanti, Riana Rahmawati, Muhamad Khudzaifi, Emma Jayanti Besan, Hasriyani Hasriyani, Galih Kurniawan · Jurnal Abdimas Indonesia · Indonesia

A community service activity in Indonesia aimed to educate residents on the benefits and uses of TOGA (family medicinal plants) urban farming. The method involved education and discussion to enhance community experience and knowledge in applying TOGA urban farming, including cultivation and utilization, and discussing the importance of natural ingredients and TOGA as an alternative treatment for minor illnesses. The findings indicate increased productivity and empowerment among residents regarding TOGA urban farming, alongside heightened empathy and awareness among pharmacists and pharmaceutical personnel in providing education.

Yessy Pristika Efendy, Hadi Suhardjono, Widiwurjani Widiwurjani · JURNAL AGROTROPIKA · Indonesia

This study investigated the optimal planting media composition and liquid organic fertilizer (LOF) concentration for pakcoy plants using a completely randomized design with two factors. The first factor included soil, compost, and goat manure in ratios of 1:1:1, 1:1:2, and 1:2:1, while the second factor involved LOF and urea concentrations at four levels. The combination of planting medium composition 1:1:2 and LOF concentration of 4 ml/liter water yielded the best results for all observed growth and production parameters.

Muzayyanah Rahmiyah, Eka Nur Jannah, Fuad Hilmy · Jurnal Pengabdian Masyarakat Bumi Raflesia · Indonesia (Magelang)

In Magelang City, Indonesia, residents of Sari Makmur Organic Village cultivate vegetables in their home gardens, but pests and diseases pose a problem. This activity aimed to enhance residents' knowledge and skills in making plant-based pesticides from papaya leaves through counseling and demonstrations. Additionally, yellow traps were installed in the fields.

V. Swetha, S. Simi, P. Manju, R. V. Manju, Suma Divakar · Journal of Advances in Biology & Biotechnology · India

This study, conducted at the Department of Fruit Science, College of Agriculture, Vellayani, evaluated the growth of five guava varieties in 80-liter air-pots for urban container farming. Arka Mridula showed superior vegetative growth, including plant height (72.33 cm) and biochemical traits. Arka Rashmi exhibited the best reproductive performance, with early flowering (101 days after pruning) and maximum flowers (12.33). The findings suggest Arka Rashmi is suitable for container cultivation in urban horticulture.

Marthe L. Derkzen, Maitreyi Koduganti, Sheetal Patil, Parama Roy · · India (Bengaluru)

Bengaluru has transitioned from a "Garden City" to a "Global Technology Hub," resulting in food production being pushed out and productive lands converted to residential and commercial uses. This urbanization has led to rising land values, sharpening inequalities, and recurrent water insecurity. In response, new forms of urban farming, such as kitchen gardens and community farms, have emerged to mitigate space constraints and meet local food aspirations. This chapter will use participatory mapping, interviews, film, and photography to explore how Bengaluru residents from diverse backgrounds perceive food as cultural connections, community feelings, and environmental resilience.

Dinda Helma Saputry, Rossi Septy Wahyuni · Jurnal KomtekInfo · Indonesia

This study, conducted from May to July 2023 with 100 respondents, used the Analytical Hierarchy Process (AHP) to determine criteria and suitable tomato seed alternatives for urban farming. The AHP identified yield potential per hectare (0.231) as the highest priority criterion, followed by the number of viable fruit per plant (0.205). GBU tomatoes (0.418) were the most supported seed alternative, with Hibrid (0.417) and GM (0.164) as the second and third alternatives.

Eni Karsiningsih, Andini Meisya Sriwijayani Suwardih, Dinda Aulia, Santia Santia, Sulthon A’uliya Alfarissi, Gita Ardianta, Aprilianti Wulandari, Annisa Miswarni Lubis, Dodi Irwandi, Muhammad Ferghio Jovanka · MESTAKA Jurnal Pengabdian Kepada Masyarakat · Indonesia (Pangkalpinang)

This empowerment program in Pangkalpinang City, Indonesia, aimed to increase vegetable production and income for the Cendawan 31 Women Farmers Group (KWT). The program addressed obstacles such as non-commercial orientation, simple management, low member motivation, unplanned production, limited price information, and inefficient marketing. Using active participatory methods, mentoring, and counseling, the program successfully improved the group's creativity, innovation in vegetable planting, and vegetable production, enabling them to arrange planting schedules and select appropriate plant types.

Joshua Garcia, Mariel Mondragon-Becerra, I. Rojas Martínez, Mallika Nocco, Cristina Lazcano · Applied Soil Ecology · United States (California)

A greenhouse trial was conducted in urban agricultural soil from the San Francisco Bay Area, USA, to investigate the effects of organic amendments derived from local municipal waste products on the soil microbiome, tomato productivity, and quality. Liquid food waste hydrolysate and mixed herbivore waste compost increased microbial abundance in the soil compared to mineral fertilizer. While mineral-fertilized tomato plants generally had higher productivity and yields, plants treated with the hydrolysate and mixed herbivore waste compost showed enhanced fruit soluble sugar content (°Brix).

Heristama Anugerah Putra, Ryan Putranda Kristianto, David Andrian, Daniel Gentario Hutabarat, Elisabeth Yolanda Kristin · Sarwahita · Indonesia (Surabaya)

This study in Surabaya, Indonesia, addresses the cultivation of grapes using the verticulture method as an urban farming concept. The project involved preparation, socialization, training, mentoring, and evaluation to enable residents to learn grape cultivation from seeding to fertilization, aiming for both consumption and sale of produce.

Dennis Guerra-Centeno, Paula Guerra-Burmester, Carlos Valdéz-Sandoval, Alfredo Gómez-Chacón, Sayra Pérez-Julián, Jackeline Marisol Noriega-Huertas, Ligia Vanessa Rios · Ciencia Latina Revista Científica Multidisciplinar · Global

This 10-week study evaluated the productivity of alfalfa (Medicago sativa) in two artisanal hydroponic towers, measuring survival, growth, biomass production, and light incidence effects. Survival was 97%. Final average heights were 40.6 cm in the upper stratum and 29.8 cm in the lower stratum, with significant differences from the second week (p < .001). Final average plant weight was 12.55 g in the upper stratum and 5.35 g in the lower, but no significant difference in average weights between strata was found (U = 212, p = 0.754). Total biomass production was 358 g, equivalent to 1.33 kg/m2.

Áurea Espinosa Cerón, Chacón Zavala Ángel Leonardo · Journal of Agricultural Sciences Research (2764-0973) · Mexico

This paper proposes the portable urban garden (HUP) as an innovative solution to the lack of cultivable space in large cities like Mexico City. HUPs can be placed in various urban areas, such as schools and housing units, to facilitate citizen participation in cultivation. The paper presents calculations for HUP construction, material budgets, and assembly schemes.

Nicole Cuya, Paul Estrada, Doris Esenarro, Violeta Vega, Jesica Vilchez Cairo, Diego C. Mancilla-Bravo · Buildings · Peru

This research aimed to create comfort for users of an educational center in Carabayllo, Peru, by applying sustainable design strategies. The study involved a literature review, flora and fauna analysis, passive design, and climatic analysis using digital tools. The resulting design proposes an educational center with year-round comfort through energy efficiency, eco-friendly materials, green roofs, dry toilets, biofilters, and xerophytic vegetation for orchards, promoting food production and improving public spaces.

Manuel J. Ibarra, Irwin Estrada Torres, Mario Aquino Cruz, Ronald A. Rentería Ayquipa, Sergio F. Ochoa, Juan Ochoa · Sensors · Peru

This article presents an experience report of family-scale urban gardening in Peru, where a prototype IoT system and mobile application were conceived, implemented, and used, considering the cultural aspects of the gardeners. This experience yielded positive results in tomato production, primarily demonstrating the system's capability to self-adapt its behavior to the cultivation conditions of these urban gardeners. This is the first IoT system known to iteratively adjust its behavior to improve adoption chances by a specific end-user population (gardeners).

Shuyue He, Ming Li, Yuhan Zheng, Xin Gao, Ruixia Wang · Cities · China

An ethnographic study of two guerrilla gardening cases in Nanjing, China (SuoJincun), examined how residents produce differentiated representational space in daily gardening practice. It found that gardening carries social value as material production, functions as a material carrier of place attachment and cultural identity, offers access to nature and culture for residents with limited mobility, and operates as a form of private appropriation and recycling of collective public space by residents.

Nurul Hidayati, Pienyani Rosawanti, Djoko Eko Hadi Susilo, Fahruddin Arfianto, Hariyadi Hariyadi · Daun Jurnal Ilmiah Pertanian dan Kehutanan · Indonesia

This experimental and descriptive study examines the implementation of urban farming techniques — vertical gardening, hydroponics, potted plants (tabulapot), and cultivation in sacks and planters — in urban areas of Indonesia, focusing on household food security. Sweet potato was chosen for its ease of growth and environmental adaptability, with both tubers and leaves usable as vegetables. Regression correlation analysis found sweet potato productivity of 1.4 kg per 40 kg sack with 10 cuttings per sack, a strong positive correlation of 96.77% between tuber count and total weight per sack (y = 71.069x - 878.93), and a strong positive correlation of 83.05% between tuber count and individual tuber weight (y = 1.6985x - 9.87), indicating that more tubers did not reduce individual tuber weight. A household growing 10 sacks was calculated to have a potential yield of 14,000 grams (14 kg).

Jane Yatuha, Justus Asasira, Godfrey Begumisa, Pascal Amandu · East African Journal of Science Technology and Innovation · Sub-Saharan Africa

This eight-week experiment, conducted from July to September 2023 in Mbarara city, Uganda, tested the capacity of greywater to serve as a hydroponic growing medium for vegetables (broccoli, spring onions, lettuce) and the greywater-cleansing capacity of Coleus ornamental plants. Greywater was collected from restaurant sculleries, and four treatments — greywater, greywater + NPK, tap water, and tap water + NPK — were each set up in triplicate, with pH, EC, TDS, temperature, turbidity, nitrates, phosphates, shoot length, leaf number, fecal coliforms, and heavy metals measured. All vegetables survived, but production levels differed significantly between treatments: lettuce had the highest production in three of the four treatments except greywater + NPK (ANOVA, F(3,56) = 2.970, p = 0.039), while spring onions grew best in greywater + NPK, differing significantly from other treatments (F(3,56) = 3.328, p = 0.026). Greywater treatments showed extreme EC and TDS values (1001.38 µS/cm and 502 ppm; 982.38 µS/cm and 490.75 ppm), significantly different from other treatments (p = 0.000), though no fecal coliforms were detected in vegetable tissue. Coleus progressively reduced TDS and EC and showed capacity to extract heavy metals from the greywater.

Mutia Devi Hidayati, Arief Rahmatulloh, Luchis Rubianto, Pritantina Yuni Lestari · Jurnal Abadimas Adi Buana · Indonesia

In the Mulyorejo sub-district of Sukun district, Malang, Indonesia (area 2.75 km²), residents actively use vacant land and underused resources under an urban farming concept, including cultivating butterfly pea flowers, though product diversification of the flowers into higher-value goods had not been thoroughly developed. This community service project delivered skills training in making batik using butterfly pea flowers as a natural dye — a technique noted for producing soft colors, commanding a high market value, and being environmentally friendly, aligned with the "clean water and sanitation" Sustainable Development Goal — and introduced ways of combining different natural dyes for color variation. Held on October 7, 2023 with 8 participants, the post-training questionnaire yielded a mean of 3.88 and a mode of 4.0 across questions, indicating participants understood, felt the benefits of, and were satisfied with the training; participants also received an electric canting (batik drawing tool) for independent production.