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This study aims to analyze the growth of tilapia (Oreochromis niloticus) cultivated in a concrete pond system in Dusun IV, Fadoro Lasara Village, Gunungsitoli City. The concrete pond system was chosen for its advantages in land efficiency, ease of management, and ability to maintain stable water quality. The research method employed a quantitative experimental approach over 60 days, with 200 Nile tilapia as the study subjects. The parameters observed included absolute weight and length gain, specific growth rate (SGR), feed conversion ratio (FCR), and survival rate (SR). The results showed that the average weight of the fish increased from 5.12 grams to 98.46 grams, with a length increase of 12.5 cm. The SGR was recorded at 4.29% per day, FCR at 1.38, and SR at 96.5%. These results indicate that the concrete pond system can support optimal tilapia growth. This study recommends the application of concrete ponds as an efficient aquaculture alternative, particularly in areas with limited land and resources. This system has proven to be adaptive to local conditions and contributes to increased productivity and income for aquaculture farmers.

Work time is the amount of time determined to carry out a number of routine or ordinary activities carried out inside and outside the household in units of time or hours. Rubber farming and oil palm farming are farming activities that are in great demand in Indonesian society and are important crops as a source of income for farmers. The problem that can be identified in this study is how the outflow of labor based on gender on rubber and oil palm farms in North Amboyo Village, Ngabang Sub-district, Landak Regency. This research was conducted from March 18 to April 18, 2024. The research method in this study is the survey method. The population in this study were all rubber farmers and oil palm farmers in North Amboyo Village, Ngabang District, Landak Regency, totaling 31 rubber farmers and 42 oil palm farmers. The variables of this study consisted of the work time of rubber farmers and oil palm farmers producing which was calculated within one month. The data analysis technique used in this study is the T-Test (Independent Sample T-Test). t test results Sig value. (2-tailed) in the table is 0.000 so it can be said that there is a significant difference between the labor expenditure of rubber farmers and oil palm farmers. There is a significant difference in the comparison of labor expenditure based on gender in rubber and oil palm farming with the test results, namely the value of Sig. (2-tailed) 0.000. This means that of the two research objectives there is a significant difference in the comparison of labor expenditure of rubber farmers and oil palm farmers, as well as the comparison of labor expenditure based on gender in North Amboyo Village, Ngabang District, Landak Regency. Keywords: Farming, Labor, Oil Palm, Rubber.   Abstrak. Curahan waktu kerja adalah jumlah waktu yang ditentukan untuk melakukan sejumlah kegiatan rutin atau biasa dilakukan di dalam dan luar rumah tangga dalam satuan waktu atau jam. Usahatani karet dan kelapa sawit merupakan kegiatan yang banyak diminati masyarakat Indonesia dan merupakan tanaman penting sebagai sumber penghasilan bagi petani. Permasalahan yang diidentifikasi pada penelitian ini yaitu bagaimana curahan tenaga kerja berdasarkan gender pada usahatani karet dan kelapa sawit di Desa Amboyo Utara Kecamatan Ngabang Kabupaten Landak. Penelitian ini dilaksanakan dari bulan 18 Maret–18 April 2024. Metode dalam penelitian ini adalah metode survey. Populasi dalam penelitian ini adalah seluruh petani karet dan petani kelapa sawit yang berada di Desa Amboyo Utara Kecamatan Ngabang Kabupaten Landak sebanyak 31 petani karet dan 42 petani kelapa sawit. Variabel penelitian terdiri dari curahan waktu kerja petani karet dan petani kelapa sawit menghasilkan  yang dihitung dalam kurun waktu satu bulan. Teknik analisis data yang digunakan pada penelitian ini adalah Uji-T (Independent Sample T-Test). Hasil uji t nilai Sig. (2-tailed) pada tabel yaitu 0.000 sehingga bisa dikatakan terdapat perbedaan yang signifikan antara curahan tenaga kerja petani karet dan petani kelapa sawit. Perbedaan yang signifikan pada perbandingan curahan tenaga kerja berdasarkan gender pada usahatani karet dan kelapa sawit dengan hasil uji yaitu nilai Sig. (2-tailed) 0.000. Artinya dari dua tujuan penelitian tersebut terdapat perbedaan yang signifikan pada perbandingan curahan tenaga kerja petani karet dan petani kelapa sawit, serta  perbandingan curahan tenaga kerja berdasarkan gender di Desa Amboyo Utara Kecamatan Ngabang Kabupaten Landak.

The Community Service Program (KKN) in Pematang Kasih Village, Pantai Cermin District, focused on the construction of owl houses (RUBUHA) as an environmentally friendly effort to control rice field rats. The background to this activity was the high level of rat infestation that was detrimental to local farmers' rice harvests and the excessive use of chemical pesticides, which had the potential to negatively impact human health and ecosystem balance. The research method used was descriptive qualitative, with data collection techniques through direct observation in agricultural fields, interviews with farmer groups, and documentation of the owl house construction process. The results showed that the village community responded positively to this program because the use of owls as natural predators was proven to be more effective in controlling the rat pest population while reducing dependence on chemical pesticides. In addition, this program also increased public awareness of the importance of ecologically based pest control and preserving biodiversity. With the owl houses built around rice fields, it is hoped that a sustainable agricultural pattern can be created that supports the welfare of farmers while preserving the environment.

This study aims to analyze efforts to empower the village economy through the development of Micro, Small, and Medium Enterprises (MSMEs) based on sustainable agriculture in Kudadepa Village, Sukahening District, Tasikmalaya Regency. The background of this study is the low added value of village agricultural products that have so far relied on traditional distribution systems, so that farmers tend to sell products to collectors at less profitable prices. The research method used is descriptive qualitative with a field study approach through observation, interviews, and documentation. Research participants included agricultural MSMEs, village officials, and local consumers. The results show that strengthening the capacity of MSMEs can be done through three main strategies: improving managerial and technical skills for business actors, product innovation based on organic and environmentally friendly agriculture, and developing a broader digital marketing network. In addition, support from the village government and related institutions plays a crucial role in providing access to capital, business mentoring, and facilitating ongoing training. The conclusion of this study confirms that the development of sustainable agricultural MSMEs not only increases community income but also encourages village economic independence and environmental sustainability. Thus, the MSME-based empowerment model can be an effective strategy in building an inclusive and competitive rural economy.

Technological advancements, particularly in microcontrollers and the Internet of Things (IoT), have brought significant changes to various aspects of life. Microcontrollers such as the ESP32, DS18B20 sensor, water pH sensor, and other supporting sensors enable the development of efficient automation systems. This research addresses issues related to the design and development of IoT devices for water quality monitoring, as well as the integration of these devices with web-based systems. The objective is to develop a device capable of monitoring water quality parameters such as pH, temperature, turbidity, dissolved materials, salinity projection, and dissolved oxygen projection, while providing automatic notifications under certain conditions. The development process applies the Agile methodology, which allows for rapid and adaptive iterations. Theoretically, this study contributes to improving understanding of IoT implementation and information systems, while practically, it provides a technological solution to support Koi fish farmers in monitoring and managing pond water quality. The expected outcome is a web-based water quality monitoring and management device for Koi ponds that can deliver real-time information and condition notifications, thereby reducing aquaculture risks and improving productivity.

Appropriate technology innovation (TTG) in agriculture is an important solution in improving farmers' work efficiency, especially in the fertilization process. In Pamotan Village, where the majority of the population are tobacco farmers, the fertilization method is still done manually by sowing on the soil surface. This method often causes uneven distribution of fertilizer, wastage of energy and time, and a lot of fertilizer lost by water or wind. This community service activity aims to introduce a manual fertilizer sowing tool made from PVC as a simple, cheap, and easy-to-use solution for farmers. The implementation method includes counseling, tool demonstration, and direct training to farmer groups as activity partners. Evaluation was conducted through observation and questionnaires before and after the activity. The results showed an increase in farmers' understanding of efficient fertilization, as well as a positive response to the tools that were considered practical and economical. The use of this seedling tool can save up to 30% fertilizer and speed up the fertilization process by 40%. Thus, this manual fertilizer seedling tool is effective in helping farmers improve work efficiency and productivity, and is very suitable for small-scale farmers in rural areas.

Livestock production in rural communities relies heavily on the availability and quality of animal feed. In Aek Korsik Village, Asahan Regency, farmers continue to use manual methods to chop forage, which are time-consuming, inconsistent, and physically demanding. To address these issues, a portable forage chopper machine was designed and introduced through a community service program (KKN). The machine features a compact mechanical system powered by a small motor, making it lightweight, mobile, and easy to operate in various conditions. The implementation process included three stages: machine development, field testing, and community training. During testing, the machine efficiently processed forage materials like grass, corn stalks, and agricultural residues, producing uniform feed sizes much faster than manual methods. Farmers reported reduced workload, improved availability of chopped forage, and better livestock feeding practices. The portable design allowed the equipment to be shared among farming groups, fostering cooperation. This study underscores the role of appropriate technology in addressing rural agricultural challenges. By integrating engineering innovation with community service, the portable forage chopper machine enhances technical efficiency and socio-economic empowerment for farmers. Future improvements should focus on durability, cutting capacity, and sustainable energy alternatives to better meet the needs of smallholder farmers.

Strengthening religious moderation is a strategic effort to build a harmonious social life, especially in Berastagi, which is characterized by cultural, religious, and ethnic diversity. Through the Community Service Program (KKN) of UINSU students in 2025, various programs were designed to encourage community participation while raising collective awareness of the importance of religious moderation values. The main programs include a dish soap-making workshop as an economic empowerment initiative, an anti-bullying campaign to instill tolerance, an education awareness campaign to build a quality generation, the creation of educational boards on waste management to preserve the environment, and the “Sapa Desa” (Semangat Aksi Peduli Desa) movement to strengthen social relations. In addition, supplementary programs such as KKN Cerdas, RUMTAr, Gen Q, Spada, along with student involvement in the fruit and flower festival, selling local products, supporting farmers, and fundraising for the Independence Day celebration, further reinforced collaborative roles with the community. These activities are expected to create synergy between students and the people of Berastagi in fostering inclusive attitudes, mutual cooperation, and environmental care, making religious moderation not only a concept but also a real practice in social life.

Bulu Village, Sugihwaras District, Bojonegoro Regency, is an agricultural village with abundant natural resource potential, including tobacco. However, community agricultural practices still rely heavily on the use of chemical pesticides, which are relatively expensive and carry the risk of negative impacts on human health and environmental sustainability. This situation prompted the implementation of a community service program in the form of training in the manufacture of natural pesticides from jadam sulfur and tobacco leaves using the Asset-Based Community Development (ABCD) approach. This approach was chosen because it focuses on exploring and optimizing local assets, both in the form of natural materials and community social skills. The training activities were attended by farmer groups and youth organizations (Karang Taruna), which play a crucial role in the program's sustainability. The training materials included theories on the dangers of chemical pesticides, the advantages of natural pesticides, and hands-on practice in making pesticides from jadam sulfur and tobacco leaves. Evaluation of the activities was carried out through observation, interviews, and the distribution of questionnaires to participants. The evaluation results showed a significant increase in farmers' knowledge about environmentally friendly pesticides, skills in making natural pesticides, and growing awareness of the importance of sustainable agriculture. In addition, the involvement of Karang Taruna strengthens the sustainability of the program through regeneration and ongoing mentoring. Overall, this training demonstrated the effectiveness of the ABCD approach in optimizing local potential to produce more economical, healthy, and environmentally friendly agricultural innovations. Thus, this program not only supports increased agricultural productivity but also contributes to the broader well-being of rural communities.

This study aims to describe the ethnomathematics activities carried out by corn farmers in Tegal Arum Village. The approach used is qualitative with an ethnographic method, with data collected through observations, in-depth interviews, and documentation from two farmers who are knowledgeable in traditional corn farming practices. The main focus of this study is to identify the application of basic mathematical concepts, such as counting, measuring, and calculating, in their daily farming activities. The results show that the farmers in Tegal Arum Village apply mathematics in a contextual form, derived from experiences and practices passed down through generations. For example, they calculate the seed requirements, estimate the number of laborers and planting time, and measure the harvest using local units like sacks and handfuls. These activities reflect the relevant application of ethnomathematics, which can be integrated into contextual mathematics learning in schools. The findings indicate that mathematics is not only taught in a formal setting in schools but also naturally develops in the community's daily life, especially through farming activities. Therefore, the results of this study are expected to serve as a reference in the development of a local culture-based curriculum that connects mathematics learning to real-life contexts.

A partnership agreement is a form of business collaboration, either directly or indirectly, that is established based on the principles of mutual need, mutual trust, mutual reinforcement, and mutual benefit. Such partnerships generally involve Micro, Small, and Medium Enterprises (MSMEs) working with larger businesses in order to create a fairer and more sustainable business relationship. However, in practice, the implementation of partnership agreements often does not reflect these fundamental principles. This is also evident in the nucleus-plasma scheme within the palm oil plantation sector, where the relationship between the nucleus companies and plasma farmers tends to show an imbalance of bargaining power. This study aims to examine the application of partnership principles in the implementation of nucleus-plasma agreements in palm oil plantations, viewed from the perspective of prevailing legislation, particularly the Law on Micro, Small, and Medium Enterprises (MSME Law). The findings indicate that the application of partnership principles has not yet been fully implemented consistently. The partnership relationship remains unequal and is largely dominated by the nucleus companies, creating a sense of injustice for plasma farmers. In terms of supervision, the Indonesian Business Competition Supervisory Commission (KPPU) plays a crucial role in ensuring that partnership agreements are carried out in line with these principles. One of the measures taken is monitoring the implementation of behavioral change commitments by business actors. KPPU ensures that nucleus companies do not abuse their dominant position and continue to provide fair opportunities for plasma farmers. Therefore, this study highlights the importance of strengthening oversight and enforcing regulations so that the objectives of nucleus-plasma partnerships in palm oil plantations can truly be realized in accordance with the principles mandated by law.

The use of chemical pesticides in modern agriculture in Indonesia has a negative impact on the environment and health. To address this issue, students from the 24th Community Service Program (KKN) of Raja Ali Haji Maritime University (UMRAH) held a training session on making plant-based pesticides from papaya leaves in Kota Baru Village, Bintan. This activity aimed to provide environmentally friendly and easy-to-apply pest control solutions to local farmer groups. The training involved agricultural extension workers from the Bintan Regency Food Security and Agriculture Office as resource persons. The results of this training are expected to increase farmers' knowledge and skills in utilizing papaya leaves as natural pesticides, reducing the use of chemical pesticides, and realizing more sustainable and environmentally friendly agriculture in Kota Baru Village. Despite obstacles in community participation, this activity succeeded in sparking farmers' interest in applying plant-based pesticides in their crop cultivation.

Kebonagung hamlet in Sukolelo village is an area where the majority of residents cultivate bananas. The abundant banana production generates a considerable amount of waste, one of which is banana stems that are usually piled up, burned, or left to rot without further use. Therefore, this community service project aims to provide a comprehensive overview of the potential use of banana waste as raw material for organic compost in Kebonagung Hamlet, Sukolelo Village. The methods used in this study involved banana farmers as research subjects and banana stems as research objects, with data collection techniques including field observations, interviews with farmers, and composting experiments. Simple laboratory analysis shows that compost from banana waste contains 1.8% nitrogen (N), 0.9% phosphorus (P), and 2.3% potassium (K), making it highly potential for use as compost material. In addition, composting activities can create new jobs through the development of organic fertilizer management business units at the village level. This is in line with Sustainable Development Goal (SDG) 12 on responsible consumption and production. According to Santoso (2020), the benefits of compost include: (a) improving soil structure, (b) increasing soil water storage capacity, (c) increasing soil microbial activity, and (d) reducing dependence on chemical fertilizers. Qualitative data were analyzed through data reduction, data presentation, and conclusion drawing in the form of nutrient content analyzed using simple laboratory tests to determine the levels of N, P, and K. The banana waste composting process went well. In the first week, the temperature of the compost pile increased to 45°C, indicating high microorganism activity. The temperature stabilized at around 50–55°C. After the second week, the temperature decreased and stabilized close to the ambient temperature, indicating that the compost was mature.

The community service activity conducted in Toapaya Selatan aimed to introduce an innovative planting and fertilizer applicator tool based on PVC pipes as an appropriate technology. This program was motivated by the persistence of manual farming practices that require excessive labor, time, and costs, while often resulting in uneven fertilizer distribution that reduces crop productivity. The implementation method adopted a participatory approach, consisting of preparation, counseling, demonstrations, field practice, and evaluation involving local farmers. Training sessions included hands-on practice to ensure that participants not only understood the theoretical aspects but also acquired practical skills in using and assembling the tool. The results indicate that the application of the pipe-based tool improved labor efficiency, reduced fertilization time, and enhanced the uniformity of fertilizer distribution on plantation land. These improvements were directly reflected in better crop maintenance and more sustainable use of resources. Farmers’ high enthusiasm and active participation demonstrated the success of this simple yet impactful technology transfer. Nevertheless, several challenges were encountered, including limited technical understanding among some participants, difficulties in replicating the tool independently, and restricted availability of tool-making materials in the local market. Overall, this innovation has the potential to contribute significantly to increasing local agricultural productivity. Further training, continuous mentoring, and institutional as well as financial support from the village government are strongly recommended to ensure the sustainability, scalability, and long-term adoption of this appropriate technology.

This study aims to examine the effectiveness of attractants on the activity of the pollinating beetle Elaeidobius kamerunicus and its impact on the efficiency of pollination and palm oil (Elaeis guineensis) production at PT Menthobi Makmur Lestari, Lamandau Regency, Central Kalimantan. The study was conducted from May to July 2025 using a factorial randomized block design with two factors: topography (flat 0–8% and hilly 15–25%) and attractant doses (0, 1, 2, and 3 ml/ha) with three replications.The parameters observed included the frequency of E. kamerunicus visits to female flowers and the percentage of fruit set. The results showed that the topography factor, attractant dose, and their interaction significantly affected the number of E. kamerunicus visits and fruit set (p < 0.01). The combination of flat land with high attractant doses resulted in the highest visits (69.04 beetles/spike) and maximum fruit set (75.11%), while the hilly land without attractants showed the lowest results (34.60 beetles/spike; 61.22%). The application of attractants increased fruit set by more than 20% compared to the control, leading to an increase in bunch weight (BJR) of approximately 5.67 kg/bunch, additional production of about 1,151 kg FFB/ha per 1.5 months, and a potential income of Rp 3,683,200/ha, far exceeding the application cost of Rp 211,638/ha. These results indicate that the use of attractants is an effective and efficient agronomic strategy to improve palm oil productivity. Thus, attractants have proven to significantly enhance pollination efficiency and palm oil production, providing substantial economic benefits to farmers and supporting the sustainability of palm oil plantations. This approach offers an applicable and sustainable solution for agricultural practices, which can be applied to various locations with similar topographical conditions.  

Local food such as chayote (Sechium edule) has great potential as a healthy and environmentally friendly product that can support food security and improve the economic value of local communities. The innovation of processing chayote, particularly into jam, not only helps reduce agricultural waste but also opens up promising new market opportunities. This study applied an experimental design to produce chayote jam with variations in the use of granulated sugar, glucose, and the addition of mint leaves to enhance flavor. The production stages included grating fresh chayote, cooking until the water content was reduced, adding sugar and pectin to achieve a thick and stable texture, and finally packaging the product in sterilized glass jars. An organoleptic test was conducted with 32 panelists to evaluate the color, aroma, taste, texture, and overall acceptability of the product. The results indicated that jam dominated by granulated sugar (Sample A) gained the highest level of preference, with an overall acceptance of 81%. In contrast, jam made with full glucose substitution (Sample C) received the lowest score of 66%. Generally, chayote jam had a natural green color, distinctive aroma, and thick texture that were well accepted by consumers. The main factors determining jam quality were cooking techniques, the balance of thickening agents, and the proper combination of ingredients. Therefore, chayote jam has the potential to become an innovative, healthy, and value-added local food product. Support in the form of training, technology application, and promotional strategies is essential to strengthen its competitiveness, improve farmers’ welfare, and enhance food diversification based on Indonesia’s local resources.

This community service program in Gunung Kijang Village, Bintan Regency, Riau Islands Province, was designed to strengthen local empowerment through the synergy of education, economy, agriculture, and social participation. The activities consisted of four initiatives: workshops on Canva-based learning media for teachers, digital marketing training and social media account creation for MSMEs, participatory mapping of challenges and potentials of local food businesses, and smart farming education using soil moisture sensors to introduce efficient irrigation technology. The results showed significant achievements across sectors. In education, teachers improved their technological skills and created interactive media that enhanced student motivation. In the economic sector, MSMEs adopted digital promotion strategies, leading to wider market reach and sales. The participatory mapping revealed obstacles such as licensing, packaging, and financial literacy, while also identifying opportunities for product diversification using local resources. In agriculture, farmers were introduced to water-saving irrigation technology that improved efficiency and supported environmentally friendly practices. On the social side, community institutions such as PKK, Karang Taruna, and farmer groups played an important role in strengthening solidarity and expanding collaboration. Overall, the program proved that integrating digital literacy, technological innovation, and community participation can accelerate rural independence while fostering sustainable welfare for island communities.  

This community service activity was conducted in Montor Village with the aim of introducing and applying appropriate technology in the form of a urea fertilizer spreader. This program was driven by the problems faced by farmers, such as inefficiency in time and labor, and health risks caused by the manual fertilization method that requires a bent posture. In this activity, KKM students not only provided socialization but also held a participatory workshop to build the fertilizer spreader with the villagers using locally available materials such as pipes. The results of this program showed that the farmers realized that the fertilization process could be done more efficiently, quickly, and ergonomically. The fertilizer spreader produced proved to reduce physical fatigue, speed up work time, and ensure more uniform fertilizer distribution. This activity successfully raised awareness among farmers about the importance of simple innovations in agriculture and strengthened collaboration between students and the community in solving local agricultural problems. The success of the fertilizer spreader demonstrates the significant potential of appropriate technology in improving farmers' efficiency and work quality, as well as promoting sustainability in the agricultural sector in rural areas.

Mangroves play a crucial strategic role in maintaining coastal ecosystem balance, serving as habitats for aquatic organisms and functioning as natural biofilters that help reduce pollution. Nevertheless, mangrove degradation in Indonesia, including in Kutai Kartanegara Regency, remains a significant challenge caused by human activities such as aquaculture expansion, settlement growth, and industrial development. Muara Badak Ulu Village, located within this regency, possesses extensive mangrove resources that require integrated conservation strategies. This community service program was carried out in collaboration with the Salo Sumbala Forest Farmers Group (KTH) to promote conservation, sustainable economic development, and local community empowerment. The activities included the installation of educational banners, community-based mangrove replanting, and the production of a profile video highlighting local potential. Over a 40-day period, these initiatives received enthusiastic responses from local residents, reflecting increased awareness of the ecological and economic importance of mangroves. The program emphasized participatory approaches, where local community members, particularly KTH, were actively engaged in every stage of planning and implementation. Beyond ecological benefits, the initiative is expected to support sustainable management of non-timber forest products, enhance economic opportunities, and strengthen environmental stewardship among coastal communities. Overall, this program demonstrates that community-driven mangrove conservation can generate multiple impacts: restoring degraded ecosystems, fostering collective awareness, and building resilience in coastal areas facing environmental challenges. Thus, the collaboration between higher education institutions and local communities provides a practical model for achieving sustainable development and environmental preservation.

The Community Service Program (Kuliah Kerja Nyata/KKN) conducted by Mulawarman University in Muara Badak Ulu Village, Kutai Kartanegara Regency, focused on introducing and strengthening the existence of the Muara Berau Biccu Forest Farmers Group (Kelompok Tani Hutan/KTH) to the wider community. This group plays an important role as a community forum for managing forests in a sustainable and equitable manner, encompassing the utilization of both timber and non-timber forest products. As part of the program, the students designed and implemented several activities aimed at raising public awareness and encouraging participation. The methods included creating an identity signboard for KTH as an official symbol of recognition, installing educational boards highlighting the importance of mangrove planting for coastal ecosystems, conducting mangrove planting using the silvofishery system that integrates environmental sustainability with aquaculture productivity, and developing a blog as a digital information platform accessible to the public. Through these initiatives, the program sought to enhance community knowledge about the ecological functions of mangrove forests, the importance of sustainable pond management for long-term productivity, and the benefits of having an online information medium to promote, document, and expand the networks of KTH Muara Berau Biccu. The results demonstrated an increased level of environmental awareness among community members, active participation in mangrove planting activities, and the establishment of a new communication medium that has the potential to strengthen the group’s position at both local and regional levels. Overall, the KKN program contributed significantly to supporting sustainable community-based forest and coastal resource management.