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The waste management program at SD Negeri Ringinanom 1, Magelang Regency, is part of the Student Work Program of Team II, Kuliah Kerja Nyata (KKN) in Ringinanom Village, Universitas Tidar. This program aims to raise environmental awareness from an early age through education and hands-on practice. It includes waste management socialization, the creation of collages from plastic waste, and the production of hydroponic pots using used gallons and bottles. The activities were carried out in stages, starting with a site survey on January 7, 2025, followed by socialization on January 10, 2025, and the practical creation of collages and hydroponic pots on January 16, 2025. This program involved students from classes 4B, 5B, and 6B through interactive socialization, demonstrations, and direct practice. The results showed an improvement in students' understanding of waste management and their skills in processing waste into valuable products. Additionally, the program supports the school’s status as a Sekolah Adiwiyata and aligns with the Projek Penguatan Profil Pelajar Pancasila (P5) curriculum, instilling sustainability values and environmental responsibility from an early age.

Rapid urbanization has led to an increased demand for food in urban areas. At the same time, land limitations and dependence on external supplies pose significant challenges to food security. Urban agriculture is an innovative solution for producing local food using limited land and modern agricultural techniques such as hydroponics, aquaponics, vertical farming, and rooftop gardens. This approach allows urban agriculture to be more resource-efficient, reduces distribution costs, and minimizes its environmental impact by lowering its carbon footprint. In addition to environmental benefits, urban agriculture also brings social and economic benefits by raising awareness of food sustainability, creating new business opportunities, and enhancing food independence in urban communities. This research uses a literature review method to examine various articles discussing the development, obstacles, and implementation of urban agriculture in different countries. The results show that urban agriculture makes an important contribution to improving food security while also providing a sustainable alternative for the global food system. Therefore, promoting the growth of urban agriculture from the perspective of sustainable food security requires support from government institutions, the private sector, and local communities.

Technological developments in the agricultural sector, especially in the hydroponic method, provide solutions for optimizing plant growth in urban environments. This research integrates ESP32 microcontroller technology with a DS18B20 temperature sensor and TDS sensor to monitor and control temperature and nutrient quality in a hydroponic system. In addition, the Sugeno fuzzy logic method is used for automatic water quality monitoring.

Hydroponic Cultivation and Family Medicinal Plants (TOGA) is an innovation that supports food security. The Community Service Program in Getas Village, Kendal Regency, Central Java, aims to improve agricultural land use through sustainable management and development of medicinal plants. The target of this program is for farmer groups and youth organizations. These activities include counseling, establishment of hydroponic houses, training, mentoring, monitoring, collaboration between the government and educational institutions, and evaluation and feedback. This program has succeeded in achieving several achievements, namely increasing knowledge, increasing skills, increasing production, and changing behavior.

The tourism sector in Indonesia is growing rapidly thanks to the abundant natural, social, cultural and regional potential. One educational tourist attraction that is currently developing is Arjuna Farm in Tasikmalaya City, which offers the concept of integrating the agricultural and fisheries sectors with the application of IoT (Internet of Things) technology. This research aims to analyze the application of IoT technology to support hydroponic production management at Arjuna Farm, especially in increasing the effectiveness, efficiency and quality of agricultural products. The research used a case study approach with a qualitative descriptive method, involving direct observation, in-depth interviews with the main managers (Mr. Andi and Mrs. Selvi), as well as analysis of secondary data from various literary sources. The research location was chosen by purposive sampling, located at Jalan Situ Cibereum, Tamanjaya, Tamansari, Tasikmalaya City, during November 2024. The research results show that POAC (Planning, Organizing, Actuating and Controlling) based management is implemented well, supported by IoT systems such as automatic watering, drip irrigation. This technology enables efficient and real-time production management, thereby maintaining the quality and sustainability of harvests, as well as increasing the attractiveness of Arjuna Farm as an educational tourist attraction based on modern technology.

Abstract The service activity for AD Hydroponic MSMEs aims to provide assistance that emphasizes digital marketing for the development of AD Hydroponic MSMEs in Malang Regency, where AD Hydroponics is a business in agriculture, namely organic vegetable plantations. This activity was carried out by a team of assistants and the method of this research was observation and implementation based on an analysis of the situation at AD Hydroponic MSMEs. This service was carried out from October to December 2024. The results of the implementation of this assistance went well, where business actors participated and carried out the directions of the assistance team well. It is hoped that the results of this assistance can improve digital marketing skills and also encourage the growth of the AD Hydroponic business in the future.

Islamic boarding schools (pondok pesantren) play a strategic role in developing human resources that are not only religiously competent but also economically independent. In addressing the challenges of globalization, pesantren independence can be strengthened through entrepreneurship programs that provide economic benefits, empower students (santri), and contribute to the surrounding community. This study focuses on analyzing the entrepreneurship programs at Pondok Pesantren Al Kautsar 561, which include biofloc tilapia farming and melon cultivation in greenhouses, using a descriptive qualitative approach. Data collection involved focus group discussions (FGD) with foundation administrators, teachers, students, and the local community. The findings reveal that entrepreneurship programs enhance pesantren independence by generating additional income, which is utilized for scholarships and operational activities. Entrepreneurship training equips students with practical skills in agribusiness and aquaculture, such as biofloc systems and greenhouse technology. Furthermore, these programs strengthen the relationship between pesantren and the community through community-based economic collaboration, creating job opportunities and improving local economic resilience. However, challenges such as limited resources and access to technology persist. Solutions include establishing strategic partnerships with external parties and providing training in digital marketing to ensure program sustainability.

Urban farming is a modern form of adaptation that is responsive to food security challenges, especially in areas with limited space such as Banten Province. This study aims to examine the dynamics of food security in the agrarian region of Banten and offer innovative solutions through urban farming practices. The global food crisis, the shrinking of agricultural land due to development and land conversion, and the decreasing public interest in farming are crucial issues that threaten local food security. In Banten, land conversion has resulted in the loss of more than 9,869.61 hectares of productive rice fields, which has a direct impact on local production capacity and increased dependence on external supplies. As a solution, this study advocates urban farming innovations such as hydroponics, vertical farming, and the utilization of idle land and home gardens. This approach not only utilizes limited land efficiently but also aligns with the principles of wise food planning as exemplified in the story of the Prophet Joseph. Qualitative methods with literature studies and content analysis were used to gather in-depth information. To create sustainable food security, this study identified three main strategies: digitalization of agricultural spatial planning using geographic information systems (GIS) to prevent illegal land conversion; Integrating circular agriculture and urban farming to manage organic waste; and engaging the younger generation as drivers of innovation through technologies such as the Internet of Things (IoT) and digital marketing. These efforts are expected to create high-quality and sustainable food security in Banten Province by combining social intelligence, technology, and environmental sustainability.

Increasing population density and concretization in urban areas, such as Magelang City, have caused a significant decrease in green open spaces (RTH), which has an impact on food security and independence. Magelang City, with a population density of 7,361 people/km², faces a major challenge in providing adequate green spaces to support local food production. Rejowinangun Selatan Village, as one example, shows the limited green open spaces available. To overcome this problem, urban farming, especially through hydroponic techniques, offers an effective solution. The methods applied in this community service include various approaches to educate and directly involve the community in the practice of making hydroponics with solar panels. By utilizing renewable energy-based technology, such as solar panels and integrated electrical systems, hydroponic farming allows food production in limited spaces such as house terraces. This system not only increases food independence and security, but also ensures that the vegetables produced are healthier because of the minimal use of pesticides. Urban farming with the hydroponic method can optimize the use of limited space and become a productive and sustainable alternative for urban communities.

KKN with the theme KKN “ Saves the Country Through Education” with 2 target missions : Education Mission and Country Mission. These two missions are a vehicle for service so that students can be directly involved in dealing with problems that occur. The implementation of this KKN program has been carried out referring to the situation and needs of the Village. For 1 month at the Melebung Village KKN location, students have carried out various programs planned between the village and the students. The programs that have been implemented are : PHBS, TOGA, Stunting Prevention, simple hydroponics, health care training and various other additional programs. This KKN activity is published in online mass media publications, YouTube channels and also in service journals.

Land scarcity in urban areas encourages people to look for efficient alternatives to plant cultivation. Hydroponics, as a soil-free cultivation technique, offers a potential solution. This activity aims to carry out socialization and training on hydroponics to improve knowledge and skills in independent plant cultivation that can support household food security in urban communities. The method used was socialization and hands-on practice of making simple hydroponic systems. The results of the socialization and training showed a significant increase in participants' knowledge of the principles of hydroponics.  The evaluation percentage is 78% of residents of Nginden Jangkungan sub-district, Sukolilo sub-district, Surabaya city are able to independently apply the Hydroponic system in the yard of each house and can take economic benefits from farming through the hydroponic system, but in the application of this hydroponic system requires high production costs, so that people pay more attention to the use of input allocations used to get more added value. Hydroponics is one of the sustainable agricultural efforts in urban environments that have limited land with the introduction of hydroponic systems, socialization, and application practices in urban areas that have been implemented.

Hydroponics as an urban farming model is very meaningful to the community, including the Inkiya Farm business in Bajubodoa village, Maros district. There are several obstacles in the production of lettuce vegetables in hydroponics that are run so that they experience fluctuations, by natural disturbances causing plant damage and even crop failure (wilting or dying), limited space, drought resistance and less than optimal growth which is generally experienced because 100% using the NFT system. The implementation of Bell-Siphon on Ebb Flow system hydroponic technology is an alternative solution that is cheaper, environmentally friendly, space saving and more optimal plant production. The Bell-Siphon unit driving the tidal system is simply assembled, placed in a hydroponic container.  This science and technology application activity results in additional knowledge for partners on how to build or assemble a Tidal System with Bell Siphon to increase the amount of production, reduce the risk of crop failure, and the potential for better production of lettuce plants. The activity resulted in at least 6 units of Ebb-Flow hydroponics in containers (tubs) with various media, installation and training for women members of the partners. Sustainability of implementation is expected at Partners as well as at the household scale in each member who has received training.

The development of agricultural technology can help communities to establish food security. This can be expected to help fulfill food as one of the basic needs of human life which is increasing. Because humans are wasteful, there is a need for agricultural technology that is easy to apply to the home, cheap to manufacture, and environmentally friendly. Therefore, we have a solution: create hydroponics using plastic bottles of trash media. The method used is socialization using PowerPoint media which contains knowledge about farming using a hydroponic and zero-waste system. With this activity, it is hoped that the community will utilize the knowledge about growing hydroponically by utilizing plastic waste. The results of this planting can be used for food security and also plastic waste processing in Blurukidul village.

The city of Surabaya, as the most populous city in East Java, faces challenges in providing green land and open space for its residents. Thus, urban farming emerged as an innovative solution to overcome limited land in urban areas. This community service aims to empower the residents of Gebang Putih Subdistrict, Surabaya, through an urban farming program. This activity includes outreach and training on urban farming techniques, including hydroponics and growing plants in pots. The results of this activity show that residents gave a positive response and high enthusiasm for this program. Urban farming not only increases food security and family independence but also contributes to improving environmental quality and public health.

Surabaya, a city with high population density in East Java, faces challenges in managing land for reforestation. To address this issue, the Surabaya Green and Clean (SGC) Program was introduced, focusing on greening and waste management. One of the proposed solutions is hydroponics, a soilless farming method that can be applied on limited land. On July 28, 2024, community service activities were carried out in Kalijudan Village, Mulyorejo District, Surabaya City, to introduce and increase public knowledge about hydroponics. This activity involved socialization and practical hydroponic planting with the participation of 25 residents. The program consisted of preparation stages, socialization, planting practices, and report preparation. Socialization included exposure to hydroponic theory and practical demonstrations, while each participant received tools and materials for home experiments. The planting method with rockwool has proven effective in supporting plant growth, while the distributed eco-enzyme provided dual benefits by increasing plant growth and reducing household waste. This program successfully introduced hydroponic technology and increased awareness of sustainable urban agriculture. Hopefully, this activity will be the first step in developing hydroponics and creating a greener environment in Surabaya.

The Urban Farming Group "Keputih Bersemi," based on educational hydroponics, is an active farming group in Kelurahan Keputih, Surabaya. Urban farming is an ideal choice for urban residents to engage in productive activities that can be followed by the surrounding community and, of course, produce something of added value. The plants or vegetables grown by the Keputih Bersemi farming group include pak choi, lettuce, and others. The harvested produce has not been sold or distributed optimally because marketing activities are conducted conventionally, with members offering the products directly to the surrounding community. This situation arises because the majority of the farming group members are elderly and still unfamiliar with technology. The use of social media, such as Instagram and Whatsapp, plays an important role as it significantly increases the visibility and sales of the group's agricultural products. A marketing strategy that involves engaging content, the use of relevant hashtags, and active interaction with potential customers will expand market reach and attract more potential customers.

Dhiffie Farm Hydroponics is located in Bantar Gebang District, Cikiwul, Bekasi City. This farm has not implemented a good marketing strategy, so it is very important for Dhiffie Farm Hydroponics to implement a good STP (Segmenting, Targeting, Positioning) marketing strategy and marketing mix, so that it influences consumer decisions. This research is an analytical descriptive research. Data sources obtained in research include primary data and secondary data. A survey method using purposive sampling data collection techniques was used to select respondents. The final result of this internship activity is increasing sales of this plantation and successfully implementing the STP marketing strategy and marketing mix well.

This article aims to examine the potential for optimizing the use of used materials for hydroponic planting media, focusing on two main aspects: community empowerment and environmental management. By utilizing used materials, it is expected to reduce dependence on limited natural resources, reduce agricultural production costs, and reduce the environmental impact of waste. In addition, the application of this technology can provide economic and social benefits to local communities, strengthening their capacity to maating these practices as part of a sustainable development strategy

The residents of RW 05 Jomblang, Candisari District, Semarang City, are increasingly concerned about the impact of plastic waste on the environment. As a solution, used plastic bottles are being utilized as planting media in hydroponic techniques by MBKM students from various universities, such as UPN "Veteran" East Java, Padjadjaran University, and Semarang State University. This utilization of plastic bottles reduces waste while supporting sustainable agriculture by minimizing the use of land and water. The program raises community awareness about eco-friendly urban farming, focusing on water efficiency and quick harvesting processes. Education includes basic hydroponic techniques and their implementation using used bottles, which has been met with active community participation. Evaluations show tangible results, such as pakcoy plants being distributed to participants. Discussions with the RW 05 Chairman reveal significant benefits for the community in utilizing used items for agriculture. This program strengthens the community and suggests further development to enhance local food security and environmental awareness, as well as motivate the adoption of modern agricultural technologies

The aquaponic plant empowerment mentoring program at Emerald Garden Housing, Bumiayu, aims to improve community skills and welfare through environmentally friendly cultivation technology. Aquaponics is a system that combines the cultivation of fish (aquaculture) and plants (hydroponics) in a mutually beneficial environment. This activity includes several stages, namely socialization, training, technical assistance and evaluation. The methods used include outreach, direct demonstrations, and field practice involving all residents. The program results show an increase in community knowledge and skills in managing aquaponic systems, as well as a significant increase in plant and fish production. Apart from that, this program also has a positive impact on improving the household economy and local food security. From the evaluation results, it can be seen that there is high enthusiasm from the community to continue developing and utilizing this aquaponic technology. This program has succeeded in creating a sustainable community empowerment model that can be replicated in other areas. The challenges faced include limited land and the need for technical adjustments that require further attention