Research & reports

Elvrida Rosa, Daniel Daniel, Yasid Arianda, Hendra Hendra, Khalid Alfarasi · · Indonesia (Banda Aceh)

This community service activity provided aquaponics technology training to housewives in Lamglumpang Village, Banda Aceh City, Indonesia, focusing on fish and vegetable cultivation. The training aimed to offer solutions for optimal use of yard land to support family nutrition and food security, especially for urban communities. Using participatory methods, the activity resulted in an increase in the community's ecological intelligence, with the average ecological competence value rising to 47, categorized as very good.

Laksmi Irianti, Ika Kustiani, Ratna Widyawati, Amril Ma’ruf Siregar · · Indonesia

In Kampung Sinar Harapan, an urban agricultural area on the outskirts of Bandar Lampung City, Indonesia, a Community Service (PKM) activity was conducted to address challenges of land conversion and water resource availability. This activity, carried out from August to October 2019, provided training to the Harapan Jaya Women Farmers Group (KWT) on the design and development of hydroponic installations and greenhouses, and on hydroponic farming methods. Evaluation results indicated that KWT Harapan Jaya members well understood urban farming methods, hydroponic installation, and cultivation techniques.

K. C. Sahu, M. K. Satapathy · International Journal of Agriculture Extension and Social Development · India

This paper discusses rooftop gardens as an alternative for vegetable production in Bhubaneswar City, India. While rooftop agriculture can improve ecosystem services and enhance urban biodiversity, vegetable production activities on rooftops are limited due to multiple challenges that need to be addressed for widespread implementation. Rooftops are not a total solution for food security but can supplement other urban food sources.

Nurlela Machmuddin, Ahmad Mubarak, Rayhana Jafar, Jufriadi Jufriadi · Jurnal Ilmiah Membangun Desa dan Pertanian · Indonesia (Tarakan)

This study, conducted in Tarakan City, Indonesia, from April to June 2021, analyzed public perception of hydroponic technology for independent household food procurement. Respondents, with an average age of 30 and high school education, showed a heightened perception (81.11%) of hydroponics. The highest perceived benefits included healthier plants, maintained quality, easy and practical maintenance, and a high selling price compared to conventional methods.

Novisrayani Kesmayanti, Abdul Aziz · Journal of Community Service · Indonesia (Palembang)

This community service activity (PKM) in Palembang, Indonesia, addressed challenges faced by PKK RT 19 RW 05 community members, including limited yard space and farming knowledge. The program provided education, technology transfer, demonstrations, and assistance for independent hydroponic urban farming. The activity successfully helped community members maximize the use of narrow yard spaces, transforming them into productive environments for family food supply through hydroponic cultivation.

Dhian Rosalina, Yenni Marnita, Nasrul Kahfi Lubis, Fiddini Alham · SELAPARANG Jurnal Pengabdian Masyarakat Berkemajuan · Indonesia (Langsa)

This community service activity provided training in Gampong Baroh Langsa Lama, Langsa Aceh city, to 30 day laborers on utilizing household organic waste to create compost blocks for planting media. The training involved socialization, practice, and evaluation, aiming to transform waste into useful products for urban farming. As a result, 50 percent of partners expressed willingness to practice making compost blocks and be periodically evaluated.

Fauzian Gilang Prananda, Sumeru Ashari · Jurnal Produksi Tanaman · Indonesia

A randomized complete block design trial at 550 m elevation on the rooftop of the Central Building, Faculty of Agriculture, Universitas Brawijaya, Indonesia, grown from June to September 2019, compared production of five melon (Cucumis melo) varieties (Melindo-15, Gracia, Madesta, Action, Glamour), measuring female flower count and timing, leaf count, plant length, stem diameter, fruit weight and fruit reduction with ANOVA and 5% BNJ follow-up tests. Growth and fruit yield differed among varieties, with Melindo showing the best production potential.

Syariful Mubarok, Salsabila Ananda, Farida Farida, Ainun Fadilah, Rija Sudirja · Kultivasi · Indonesia

An experiment conducted from August to September 2020 in a densely populated residential area on Jalan Caringin Raya, Bekasi City, Indonesia, used a Randomized Block Design to grow two amaranth (bayam) cultivars, 'Maestro' and 'Mira,' under three different cultivation systems — conventional, verticulture, and floating-raft hydroponics — with four replications each, on narrow urban plots. The results showed that amaranth grown under the floating-raft hydroponic system produced the best growth, yield, yield quality, and revenue compared with the conventional and verticulture systems.

Muhammad Taqiyudin Majid, Nurul Aini · Jurnal Produksi Tanaman · Indonesia

Although white radish (Raphanus sativus L.) can be cultivated throughout Indonesia, it is grown in only a few regions; this study examined expanding cultivation via urban farming by testing the interaction between polybag size and planting media composition on growth and yield. Conducted from March to April 2020 in a greenhouse at the Faculty of Agriculture, Universitas Brawijaya, Malang, the study used a factorial randomized group design with two factors and three replications: polybag size (30×15 cm = U1, 35×17.5 cm = U2, 40×20 cm = U3) and cocopeat:compost:sand ratio (1:1:1 = K1, 1:3:1 = K2, 1:1:3 = K3, 3:1:1 = K4). Results showed the appropriate media composition depended on polybag size: the 30×15 cm and 35×17.5 cm polybags produced the highest fresh weight with a cocopeat:compost:sand ratio of 3:1:1, while the 40×20 cm polybag with a 1:1:1 ratio increased the fresh weight of radish tubers.

E. Ramanujam, S. Padmavathi, Nashwa Ahmad Kamal · International Journal of Sociotechnology and Knowledge Development · India

Rooftop farming is gaining popularity for growing organic vegetables with minimal water use, but is highly vulnerable to pest infestation, and urban residents new to farming often fail to notice pest attacks. Noting that existing image-processing and machine-learning pest identification systems are typically disease-specific with low generalization accuracy and poor usability, this paper proposes a mobile-based pest identification system built on a pretrained convolutional neural network model (AlexNet). Various rooftop pests were evaluated experimentally using different kernel sizes and layer configurations, and the best-performing pretrained model was converted into a mobile application via a REST API to provide pesticide recommendations to novice users.

Jin-Hee Ju, Hee-Yeon Song, Deuk-Kyun Oh, Sun-Yeong Park, Yong-Han Yoon · Journal of Environmental Science International · South Korea

This study, conducted from April to September 2019 on the rooftop of Konkuk University's Glocal Campus in South Korea, evaluated growth, physiological responses, and productivity for different intercropping ratios of cherry tomato (Lycopersicon esculentum) with basil (Ocimum basilicum) on rooftops. Five treatments -- single tomato (TC), 2:1 tomato-to-basil (T2B1), 1:1 (T1B1), 1:2 (T1B2), and single basil (BC) -- were arranged in a randomized complete block design with three replications (15 plots total), measuring plant height, leaf length and width, leaf number, root length, root collar caliper, chlorophyll content, fresh and dry weight, fruit number, fruit caliper, fruit weight, and sugar content. The comparative analysis found growth, physiological, and productivity responses to be efficient when the tomato-to-basil ratio was 2:1 or 1:1.

· Plant Physiology Reports · India

Evaluates chilli, okra and tomato under a low-cost wick irrigation method versus conventional irrigation, reporting improved growth, photosynthetic rate, stomatal conductance and chlorophyll content.

Mohan S. V. · Materials Circular Economy · India

A case study treating urban organic waste as a resource in urban biocycles, presenting the keyhole garden as a practical decentralized urban-farming method integrating circular-economy and regenerative principles.

Sugeng Triyono, Fadli Afrizki Surya Aditama, Elhamida Rezkia, D Dermiyati, Jamalam Lumbanraja · World Journal of Advanced Research and Reviews · Indonesia

This pot experiment in Indonesia investigated the effect of medium size and organic compost dosage on the growth and yield of red lettuce. Red lettuce growth was depressed at 1kg and 3kg medium sizes but grew more freely at 5kg. The study found that the 3kg medium size with 10% compost dose yielded 75.3g per plant, which was considered the most optimum treatment due to using the least medium and compost, despite restricted growth.

Peileku Yikwa, Luluk Syahr Banu · Jurnal Ilmiah Respati · Indonesia

An experimental study conducted at the Greenhouse of the Faculty of Agriculture, Respati University, Indonesia, from February to August 2019, investigated the response of chili and mustard greens polyculture in polybags to onion peel compost composting time and dose. Using a factorial completely randomized design, onion peel compost doses (0, 100, 150, 200 gr/polybag) and composting times (24, 36 hours) were examined. The results showed that applying 100 grams/polybag of 36-hour compost yielded the highest plant weight (211.25 grams) and chili fruit weight (73.25 grams) for polycultured chili and mustard greens.

Fajar Baskoro Wicaksono, Meitharisha Fakhdiyar Hasani, Pandu Yuri Pratama, Henny Yunita, Idham Riyando Moe · · Indonesia

This paper investigates rainwater harvesting as an alternative for urban agriculture in the Wanggu Catchment Area, Southeast Sulawesi, Indonesia. It calculates the water needs for cabbage (281.15 mm/total growing period) and spinach (108.83 mm/total growing period) based on FAO standards. Simulation results indicate that with a 100 m2 rainwater catchment area, spinach can be planted more frequently (4 periods) and in a wider area (29.06 m2) compared to cabbage (2 periods, 22.51 m2).

Ahmad Shabir Hozad · Environmental Research and Technology · Thailand

This study investigated the effects of human urine as fertilizer on butterfly pea (Clitoria ternatea) plants in a green wall system on the AIT campus. Applied at a nitrogen loading rate of up to 0.73 g N m-2 week-1 (104.28 mL urine m-2 week-1) for 16 weeks, urine fertilizer positively affected the food production, inflorescences, and health of butterfly pea plants, indicating it is suitable for green walls. This method could reduce campus wastewater load and save on expensive wastewater treatment.

Dedi Sudarmaji, Ruswadi Muchtar, Ayu Vandira Candra Kusumah · Jurnal Ilmiah Respati · Indonesia

This study investigated the response of pakcoy plants to liquid supplementary fertilizer in a vertical culture system. Using a Randomized Block Design with six treatments and three replications, researchers observed variables such as leaf count, leaf width, plant height, fresh weight, and dry weight. The results showed that treatment P4, with a liquid supplementary fertilizer concentration of 2.5cc/liter of water, yielded the best plant height, leaf width, leaf count, fresh weight, and dry weight for pakcoy plants.

Ady Daryanto, Muhammad Ridha Alfarabi Istiqlal, Ummu Kalsum, Ratih Kurniasih · Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) · Indonesia (Depok City)

This research evaluated the horticultural characteristics of five hybrid tomato varieties grown in a lowland greenhouse at Gunadarma University, Depok City, West Java, from October 2018 to January 2019. Tymoti and Tantyna varieties performed well, while Agatha and Ultima showed a 40% decrease in fruit size, and Rewako was unsuitable due to high flower dropping and low fruit setting. Significant differences were observed across all quantitative characters among the varieties.

Rahmawaty Rahmawaty · Journal of Saintech Transfer · Indonesia (Medan)

This activity at Khansa Kindergarten in Medan aimed to provide environmental education for early childhood by engaging students in planting various types of plants, including vegetables, ornamental plants, fruits, and medicinal plants. The activity involved preparing planting media, planting, and harvesting fast-growing vegetables. The results showed that the children were enthusiastic and happy, and the school environment became greener and more beautiful with the increased vegetation.

Sugeng Triyono · · Indonesia

This study observed the effect of medium size and organic compost dosage on the growth and yield of red lettuce (Lactuca sativa L. var red rapids) in pots. A 3x4 factorial treatment in a completely randomized design with 3 replicates tested medium sizes (1kg, 3kg, 5kg) and organic compost dosages (0%, 10%, 30%, 50%). Results showed that red rapid lettuce growth was depressed at 1kg and 3kg medium sizes but grew more freely at 5kg. The treatment combination of 3kg medium size-10% compost dose, yielding 75.3g per plant, was considered the most optimum due to using the least amount of medium and compost, despite restricted growth.

Fetty Dwi Rahmayanti · · Indonesia (Jakarta)

This research focuses on utilizing waste chicken and duck eggshells as organic fertilizer for shallot plants cultivated in pots, particularly in Cipinang Melayu Village, East Jakarta, Indonesia. The study aims to process eggshell waste into eggshell flour fertilizer to provide nutrition for shallot plants. During the research, each stage of shallot growth and development will be observed from planting to harvesting.

Udhayabanu.D, Sharmilabanu.D · Studies in Indian Place Names · India

This study investigates rooftop farming in an urban area in India, focusing on the growth ratios of two plants cultivated using different substrate ratios, including garden soil and kitchen waste compost. Measurements included stem height, leaf height, girth, root height, and total growth time. The study suggests that rooftop cultivation contributes to environmental sustainability by increasing green cover, reducing carbon levels, and decreasing household organic kitchen waste.

Program Studi Agroekoteknologi, Fakultas Bioindustri, Universitas Trilogi, Disky Farros Al Fauzaan · JURNAL BIOINDUSTRI · Indonesia

This study evaluated the characteristics of F2 genotypes of ornamental chili (Capsicum spp.) at the Experimental Garden of Trilogy University Agroecotechnology Study Program from November 2019 to April 2020, using the single plant method. Significant differences were found in quantitative characters such as plant height, fruit weight, fruit length, fruit diameter, and seed number. Qualitative characters also showed diversity among the planted genotype population.

Nur Arifaini, Ika Kustiani, Purba Aleksander, Amril Ma’ruf Siregar · · Indonesia (Bandar Lampung)

A community service program in Rajabasa Jaya Village, Bandar Lampung, Indonesia, addressed land conversion and irrigation issues in an urban fringe agricultural area. The program aimed to empower the Harapan Kita Women Farmers Group by providing training on urban farming methods for ginger cultivation in home gardens. It also included installing instant herbal ginger processing machines and training on producing instant ginger to enhance the economic value of their harvest.