Research & reports

Mei Linda Sipayung, Mariana Eva Yanti · Journal Inovasi Pengabdian Masyarakat · Indonesia

A qualitative descriptive study of the Binjai Green Hidroponik (hydroponic) system in the Binjai region of Indonesia, combining a literature review, field observation, and interviews with local hydroponic practitioners to examine its concept, advantages, and application. Hydroponics is described as a soil-free cultivation method using a mineral nutrient solution adjusted to plant needs, positioned as a solution for raising agricultural productivity amid limited fertile land and rising food demand. The study found that the hydroponic system can raise water-use efficiency by up to 80%, speed up vegetable harvest time, and produce more hygienic, higher-quality products. Implementation of Binjai Green Hidroponik is described as having potential to drive local economic growth through urban-farming-based agribusiness.

R. Jaishanker, Akshay Kumar, Mritunjay Pandey · Journal of Rural Development · India

This paper proposes the "Nalanda model," a paradigm linking rural and urban women in India through grow-bag rooftop farming: rural women prepare cow dung cakes that are stacked in grow bags with a sand-dung mixture as potting material, channeled through women's collectives to urban women who fill and sell the bags to urban customers. The paper presents this as a conceptual empowerment and livelihood strategy connecting rural and urban marginalized women rather than reporting field-tested outcomes or measured results.

V. S. Manivasagam, G. V. Saai Shreyaa, Shriienidhie Ganesh · Computational Urban Science · India

This study built a geospatial framework using open-access geospatial datasets to assess the economic feasibility of rooftop gardening, rainwater harvesting, and photovoltaic installations across 368,748 rooftops in Coimbatore, India. Projected revenue estimates were ₹28.58 billion for photovoltaic systems, ₹15.79 billion for rooftop gardens, and ₹0.34 billion for rainwater harvesting; a crop-specific analysis found chillies the most profitable rooftop crop, with potential revenue of ₹38.51 billion, and coriander the least profitable at ₹4.57 billion.

Agustin Windianingsih, Mulki Siregar, Estu Mahanani, Aisyah Hikmatur Romadhonah, Nihlah Hariro Romadhona, Urvia Rahmadani, Adinda Putri Salsabila Salvi, Idham Nur Kholiq · Jurnal SOLMA · Indonesia (Jakarta)

This report describes a community-service activity (PKM) conducted by Universitas Islam Jakarta with D'Shafa, a farming community in Jakarta focused on urban agriculture development, aimed at strengthening food security and economic welfare. The activity followed five method stages — education, training, technology application, evaluation, and program sustainability — with the goal of helping the D'Shafa Women Farmers Group (KWT) create value-added processed products. The activity produced value-added products through the use of a vacuum-frying machine for making fruit and vegetable chips, and it broadened KWT D'Shafa members' knowledge of preparing simple and digital financial reports and of digital marketing.

Dhaipule Amritha, B. Nirmala, Ch. Srilatha, K. Supriya · Journal of Scientific Research and Reports · India

This study examines the motivations driving urban gardening, the challenges gardeners face, and how pricing, usability, and support services shape consumer preferences among residents of Hyderabad, India. Using purposive sampling, 80 respondents completed a structured questionnaire with 5-point semantic differential scales, analyzed via mean ranking and multiple linear regression. Most respondents were female, educated, middle-aged, and married, living in nuclear families, with both working professionals and homemakers participating in gardening. Adverse weather and pest problems were the most commonly reported challenges; among package features, material quality was rated most important, followed by price and ease of use. Pricing, usability, and support services significantly influenced consumer preferences (p < 0.01).

Ratih Hesty Utami Puspitasari · Moneta Journal of Economics and Finance · Indonesia

This study evaluates willingness to pay (WTP) for urban ecosystem services — particularly cultural and provisioning services delivered by urban agriculture (UA) — in rapidly urbanizing Indonesian cities, using a Contingent Valuation Method (CVM) structured survey and logistic regression to identify socioeconomic predictors of WTP, supplemented by a review of comparative case-study literature to contextualize the findings. The results show strong public support for UA, with higher WTP associated with cultural ecosystem services tied to heritage, aesthetics, and community identity. Key predictors of WTP were income, education, environmental concern, and prior exposure to UA, with regional differences reflecting cultural and policy context. The study notes methodological limitations of CVM in capturing intangible values and advocates mixed-methods approaches incorporating ethnographic and participatory tools.

Xintao Lin, Jianping Qian, Jian Chen, Qiangyi Yu, Liangzhi You, Qian Chen, Jiali Li, Pengnan Xiao, Jingyi Jiang · Resources Environment and Sustainability · China

A study of Beijing and Shanghai, China (2025) modeled decarbonization from adjusting the local-sourcing share of seven perishable food categories — vegetables, poultry, aquatic products, beef, and lamb among them — incorporating both production and cold-chain logistics emissions across multiple localization scenarios. Each 1% increase in localization of vegetables, poultry, and aquatic products cut 2020 emissions by 0.4-1.9 tCO2e, while the same 1% increase for beef and lamb raised emissions by 0.2-2.9 tCO2e; localization reduced the cold-chain emission share for every food category. A constrained "balancing strategy" cut 2020 emissions by about 0.76 MtCO2e (5%) in Beijing and 0.44 MtCO2e (2%) in Shanghai, and an unconstrained scenario maximizing urban agriculture use achieved 3-4 times more reduction. Under a business-as-usual projection, the strategy was estimated to offset over 90% of Beijing's added emissions by 2035, with a further 0.44 MtCO2e reduction possible in Shanghai. The findings indicate that importing more carbon-intensive ruminant meat while reallocating urban resources toward vegetables, poultry, and aquatic products could produce more sustainable food supplies in megacities.

Ramadha Subhani Aden, Luki Anjardiani · Frontier Agribisnis · Indonesia

Focused on "Merko Hidroponik," a Merck Family Foundation-funded hydroponic (NFT) lettuce enterprise in Banjarbaru City, Indonesia, adopted as urban farming to address declining agricultural land, this study (2025) used descriptive methods to calculate total costs, revenue, profit, and business feasibility (R/C ratio) for the period March 2023 to July 2024, during which 11 planting cycles were completed from seeding through nursery, growth management, harvest, and post-harvest processing. Total costs were Rp7,906,424, total revenue Rp9,920,000, and profit Rp2,013,576, yielding a feasibility ratio of 1.254, concluded to make the business "feasible" to run. However, the study also identifies that the enterprise currently faces problems of root rot disease, managerial inefficiency, and challenges maintaining production continuity.

Talitha Ummiyah Hana, Sulistyodewi Nur Wiyono, Mahra Arari Heryanto, Ahmad Choibar Tridakusumah · MIMBAR AGRIBISNIS Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis · Indonesia (Bandung)

A case study of Greenhouse X, an urban farming enterprise in Bandung, Indonesia, found that its hydroponic water spinach (kangkung) supply has not been able to optimally meet market demand, and that its supplier-farmer partners are often inconsistent in meeting supply targets. Using a qualitative case-study method analyzed descriptively, the study identified 19 production risk events. The highest-severity risks (Si=9) were plant death during growth and root rot; harvest delays and unmet product quantity were rated as extreme-impact risks (Si=8).

Audina Meiliansya, Yayu Sri Rahayu, Nurcahyo Widyodaru Saputro · Journal of Mangifera Edu · Indonesia

Conducted from February to March 2025 at the Faculty of Agriculture laboratory, Singaperbangsa University, Karawang, Indonesia, this study examined growth and yield of Brassica microgreens (cauliflower, radish, and broccoli) under six levels of limited light exposure (indoor control, outdoor control, and 60%, 50%, 40%, and 30% lighting), using a split-plot design within a group randomized design with two replicates per treatment (36 experimental units total). F-tests at the 5% significance level, followed by Duncan's Multiple Range Test, showed a significant interaction between light exposure and plant type for growth uniformity and plant height at 7 days after planting (DAP). The combination of 50% lighting with broccoli produced the highest growth coherence value, 88%, while the tallest plants at 7 DAP, 6.55 cm, occurred with 30% lighting combined with broccoli.

Ristina Siti Sundari, Depy Muhamad Pauzy, Hary Firmansyah, Arif Arif, Jhon Hardy Purba · Agro Bali Agricultural Journal · Indonesia

Against the backdrop of urban farming as a strategic response to land scarcity and food security challenges in metropolitan areas, this study examined the financial performance and internal marketing value of shallot (Allium cepa var. aggregatum) agribusiness grown hydroponically using Nutrient Film Technique (NFT) and Deep Flow Technique (DFT) systems across two planting cycles. As a case study at P4S Galih Jaya, Indonesia, the quantitative descriptive research combined direct observation, financial documentation review and structured stakeholder interviews, calculating standard agribusiness financial metrics — production output, net income, Benefit-Cost (B/C) ratio and Break-Even Point (BEP) — while internal marketing indicators (employee understanding, decision alignment and motivation) were assessed via pre- and post-cycle surveys. The DFT system in cycle 2 yielded the highest net income (IDR 2,036,725) and B/C ratio (3.6), while the NFT system in cycle 1 incurred a financial loss of IDR 10,155 with a B/C ratio of only 0.9, indicating it was unprofitable. Internal marketing indicators showed clear improvement between periods, and the study concludes that the choice of hydroponic system affects not only profitability but also internal stakeholder engagement.

Fadhil Adi Nugraha, Ira Malihatun, Siwi Gayatri, Titik Ekowati, Sumarsono Sumarsono · AGRICOLA · Indonesia

In Semarang City, Indonesia, a survey of 86 farmers from four Women Farmer Groups (KWT) who received the government's Sustainable Food Yard (Pekarangan Pangan Lestari) program — using questionnaire interviews, descriptive analysis, and a literature review — assessed the program's social, economic, and environmental impacts. The social impact was rated "less" (score 31.10%), the economic impact "low" (28.88%), and the environmental impact "very low" (18.60%). The program strengthened social relations among farmers but was not effective in improving farming skills or public health; economically it had potential to contribute to household expenditure but had not optimized income growth or job creation; and its environmental impact remained limited, particularly in preserving biodiversity and reducing chemical use.

Aprilia Martika, Amelia Sari, Disti Macela Putri, Misbahul Munir · Inisiatif Jurnal Ekonomi Akuntansi dan Manajemen · Indonesia

Focusing on the Parit Lalang area of Pangkalpinang City in Bangka Belitung, Indonesia, this qualitative case study used participant observation, in-depth interviews and documentation studies, analyzed thematically and via SWOT analysis. Urban agriculture there is carried out mostly in small home gardens and on vacant land, using hydroponic and traditional methods, with productive-age residents and housewives as the main participants. The practice increased household food availability, reduced living costs, and generated additional income, strengthening local economic resilience. However, challenges remain, including limited technical skills, financial constraints, and inconsistent government support, and the study concludes that strengthening training programs, improving access to finance, and developing pilot projects are needed.

Shaikh Tanveer Hossain · Organic Eprints (International Centre for Research in Organic Food Systems, and Research Institute of Organic Agriculture) · Asia

A report by Dr. Hossain discusses the transformation of organic farming through technological, ecological, and social innovation, citing examples including precision farming, community supported agriculture, biological pest control, and digital traceability systems. Case studies of an organic sack-garden for household nutrition, integrated rice-duck farming for pest control and soil health, and a Zero Energy Cold Chamber (ZECC) for post-harvest storage are described as demonstrating low-cost, replicable models that improved smallholders' incomes and sustainability. The report cites the Asian Productivity Organization's "Green Productivity" framework as linking productivity gains with environmental stewardship across the Asia-Pacific region.

Usha Baniya, Sachin Khaniya, Rojan Karki · Nepalese Journal of Agricultural Sciences · Asia

This review paper positions hydroponics—a soilless cultivation technique—as a method of urban agriculture addressing confined land availability, food security, and environmental concerns from urbanization, focused on Kathmandu, Nepal. It synthesizes existing insights on setup costs, operational challenges, and profitability against global trends and local constraints, and, framing setup costs and operational challenges as barriers to adoption, recommends subsidies, training, and integration into urban planning as pathways to foster the uptake of hydroponic farming.

Dian Prihardini Wibawa, Ayu Wulandari, Herry Marta Saputra · Wikrama Parahita Jurnal Pengabdian Masyarakat · Indonesia

A community outreach program in Jerambah Gantung Village, Pangkalpinang City, Indonesia, trained the 12-member Kenanga Women's Farmers Group in hydroponic urban farming through socialization, training, and mentoring. Average pre-test to post-test scores rose from 70 to 95, and harvest yield increased 37 percent, from 35 kg in the first harvest to 48 kg in the second.

Paturu P., Varadarajan S. · Science of The Total Environment · India

Combines product-service-systems thinking and life-cycle assessment to compare the environmental impacts of hydroponic urban-farming business models (greenhouse, indoor, cabinet selling with remote monitoring) for lettuce production in Tamil Nadu, India.

· Sustainability · China

Uses provincial panel data to analyze how urban–rural integration affects food security across China.

· Agriculture · China (Shanghai)

Assesses the sustainability of urban agriculture across Shanghai's nine agriculture districts (2010–2020) using a triple-bottom-line framework, finding overall gains but declining economic sustainability.

· Sustainable Cities and Society · China (Xiamen)

Builds a framework to evaluate, diagnose, and optimize multi-functional urban agriculture in Xiamen, China, finding strong social but weak ecological functions.

· Nature Cities · China

A study evaluating the potential of urban rooftops in China for both food production and energy generation.

Debora Sihombing, Yayat Sukayat · MIMBAR AGRIBISNIS Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis · Indonesia

PT Tanikota Agribudaya Edulestari, an urban agriculture company, has not yet achieved profitability despite business diversification and technology application. This qualitative study analyzed elements of organizational dynamics to identify obstacles faced by the company in its business operations. Results showed that 22 out of 32 sub-variables did not align with organizational dynamics indicators, including organizational goals, member orientation, task-activity balance, conflict resolution, coordination, decision-making, and member participation, indicating that the company's organizational dynamics still face challenges in business operations.

Darwison Daud, Zaini Zaini, Mohammad Khoiru Rusydi, Aulia Aulia, Novizon, Syukri Yunus, Rico Novendra, Mumuh Muharam, Athalla Novandri, Fatih Mubarok, Roza Susanti · Jurnal Andalas Rekayasa dan Penerapan Teknologi · Asia

In Sungkai Green Park Ecotourism, Padang City, lecturers and students from Andalas University implemented a Solar Dryer Dome for cultivating vegetables, fish, broiler chickens, and drying tea. This system, equipped with an IoT-based control system, resulted in efficient harvest times: vegetables in 21-27 days, approximately 1000 gourami fish per year, broiler chickens in 30 days, and dried tea in 8 hours, contributing to increased production efficiency, reduced operational costs, and improved product quality.

Sreejith Aravindakshan, Hage Aku, Michi Tani · · India

This study investigated factors inducing the emergence, sustenance, and sustainability of urban agriculture using primary data from urban farming households in Kerala and Arunachal Pradesh, India. The research indicates that urban agriculture has provided questionable environmental gains and has not significantly improved urban food security, especially among the poorer sections.

Sung–Ho Kil, Hye‐Mi Park, T. Kim · Journal of people, plants, and environment · South Korea (Seoul)

This study estimated the willingness to pay (WTP) and civic awareness for rooftop greenhouses (RGs) among residents of Seoul, South Korea, using the contingent valuation method (CVM). The per capita WTP for RGs among Seoul residents was 30,260 KRW, valuing RGs in Seoul at approximately 220 billion KRW. Most respondents preferred a combination of crop production and experiences, and suggested that customized education on building and managing rooftop greenhouses was the most necessary measure to promote RGs.