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Suboptimal waste management in Kalijoso Village, Secang District, Magelang Regency, is a critical issue that impacts environmental sustainability and public health. The inefficiency of conventional waste disposal methods has led to increased waste accumulation, soil and water pollution, and the spread of diseases, which has significant consequences for local communities. To address these challenges, the local government and community organizations have embraced the principles of the 3R (Reduce, Reuse, Recycle) through a transformation of traditional waste disposal sites (TPS) into 3R TPS. The new approach focuses on sustainable waste management practices that reduce the amount of waste sent to landfills. One of the key strategies implemented is educational outreach to raise awareness about the importance of waste segregation and recycling. Additionally, training programs have been conducted to teach the community how to process organic waste, particularly through the cultivation of maggots using Black Soldier Fly (BSF) larvae. This method not only helps reduce the volume of organic waste but also provides a practical solution for transforming waste into valuable resources. The maggots cultivated during the demonstration are used as animal feed, which creates a sustainable circular economy within the community. Furthermore, composting organic waste results in high-quality compost that supports local agricultural activities. This has added economic value by reducing the need for chemical fertilizers, while simultaneously improving soil health. The role of the Salakan Hamlet Youth Organization has been instrumental in this initiative. They have successfully managed a waste bank, providing an organized and systematic approach to waste collection and recycling. This initiative has fostered a sense of community responsibility and has not only improved waste management practices but also contributed to the overall economic development of the village.

Adoption of melon (Cucumis Melo L.) cultivation innovation plays an important role in increasing productivity and efficiency. This study discusses the application of innovation adoption in melon plants with greenhouse technology, hydroponics, modern irrigation technology, post-harvest processing mechanisms for breeding. This literature review uses the Systematic Literature Review (SLR) method to compare National Journals and International Journals that are relevant to Innovation Adoption. The use of the Internet of Things (IoT) allows automatic monitoring of environmental conditions. Technology in melon cultivation has a significant impact on agricultural productivity and efficiency. In the hydroponic system of soilless cultivation in limited land conditions, each innovation has challenges in its implementation, such as high investment costs, the need for training for farmers, and limited access to certain technologies  

This study aimed to evaluate the effect of compost fertilizer and potassium chloride (KCl) fertilizer, as well as their interaction, on the growth and yield of sweet corn (Zea mays saccharata Sturt). The experiment was conducted from May to August 2022 in Kuning Village, Bambel District, Southeast Aceh, using a factorial randomized block design with two factors: compost dosage (480 g/plot, 960 g/plot, 1,440 g/plot) and KCl dosage (20 g/plot, 40 g/plot, 60 g/plot), each replicated three times for a total of 27 plots. Observed parameters included plant height, stem diameter, leaf area, days to flowering, ear length, and ear weight per plot. Results indicated that compost and KCl fertilizers significantly affected plant height, leaf area, days to flowering, and ear length, but had no significant effect on stem diameter or ear weight per plot. The interaction between compost and KCl produced the highest plant height (165.89 cm) and ear length (21.69 cm) in treatment K3C1. The findings suggest that optimal fertilization using compost and KCl can enhance sweet corn productivity by improving vegetative growth and reproductive development. Nevertheless, the absence of significant effects on stem diameter and ear weight per plot indicates that nutrient balance, especially nitrogen (N) and phosphorus (P), remains crucial for maximizing yields. Therefore, integrating compost and KCl with complementary sources of macronutrients could promote more consistent outcomes. This research also highlights the role of organic matter in enriching soil fertility, maintaining soil structure, and supporting sustainable agriculture. The combination of organic and inorganic fertilizers demonstrates the potential for eco-friendly crop management practices that balance productivity with environmental responsibility. These results provide valuable insights for farmers, agronomists, and policymakers in developing efficient fertilization strategies for sweet corn cultivation within local conditions.

This research aims to analyze the erosion hazard level in the Bone-Gorontalo River Basin (DAS) using the Universal Soil Loss Equation (USLE) for the years 2013 and 2023. The data utilized in this study is secondary, consisting of official documents, scientific articles, and information from statistical agencies. A qualitative descriptive research method is applied to provide an in-depth overview of changes in soil erosion conditions. The analysis results show that the area classified as very light (Class I) increased from 3,873.84 hectares in 2013 to 5,404.92 hectares in 2023, reflecting an improvement in soil conditions. Although there was an increase in the light category (Class II), areas in the moderate (Class III) and heavy (Class IV) categories also saw an increase, indicating a need for further intervention. The total annual erosivity decreased from 1,180.70 to 766.65, indicating a positive response to climate change and improved land management. This study recommends more intensive conservation actions to reduce erosion risks, especially in areas that remain vulnerable.

Deforestation in Indonesia's hilly regions has a significant impact on increasing the rate of erosion and sedimentation. This study aims to systematically examine the effects of deforestation on erosion and sedimentation processes and evaluate conservation approaches used to mitigate these impacts. The method employed is a literature review of various relevant national and international studies, focusing on tropical upland areas in Indonesia. The analysis reveals that the conversion of forests into agricultural land, plantations, and settlements results in the loss of vegetative cover, which plays a critical role in stabilizing soil particles and regulating surface runoff. The resulting impacts include increased erosion rates, soil structure degradation, and elevated sedimentation in water bodies, which deteriorate water quality, reduce reservoir capacity, and harm aquatic ecosystems such as coral reefs and mangrove forests. Effective conservation approaches include vegetative techniques such as reforestation and agroforestry, as well as mechanical techniques such as terracing and check dams. The main recommendation from this review is the need for integrated conservation policies, community participation, and the mapping of vulnerable areas to achieve sustainable and adaptive land management in Indonesia’s hilly regions.

In geotechnical engineering, building robust structures is crucial to ensure the bearing capacity of structures against external forces, so making sure soil strength and unreliable build cost and duration prediction are also very important and preliminary aspects of any construction project. Therefore, in this first-of-its-kind modern examine, the capability of various artificially intelligent (AI)-based models toward reliable forecasting and estimation of preliminary construction expenses, duration, and strength at shear is explored. First, background information about the revolutionary artificial intelligence (AI) technique along with its many distinct models ideal for geotechnical and building engineering problems is presented, The use of AI-based models in the literature for the aforementioned construction and maintenance applications is discussed in a number of current works, together with their benefits, drawbacks, and future directions. Several important input elements that significantly affect the preliminary price of construction, construction time, and soil's shear strength estimation are listed and given through analysis. Finally, some obstacles to employing AI-based models for precise forecasts in these applications are discussed, along with elements influencing the problems with cost overruns. Thus, this work can help civil engineers make effective use of artificial intelligence (AI) to solve difficult and risky tasks. It can also be used to Internet of Things (IoT) environments for self-learning applications like smart architectural health-monitoring systems

The integration of solar powered IoT irrigation systems in precision agriculture offers a sustainable solution to address water scarcity and enhance crop productivity. By leveraging real time data from soil sensors, weather APIs, and machine learning algorithms, these systems optimize irrigation schedules and improve water use efficiency. This research explores the potential of integrating renewable energy sources, such as solar power, with edge computing in smart irrigation systems to promote sustainable agricultural practices. The study aims to evaluate the performance of the proposed system in terms of water savings, crop yield, energy efficiency, and adaptability to varying climate conditions. Literature Review: Previous studies highlight the importance of smart irrigation systems in reducing water waste and improving crop yield through real time monitoring and automated decision making. However, existing systems often lack the integration of renewable energy and edge computing, which are critical for ensuring sustainability and operational efficiency in rural agricultural settings. The combination of renewable energy with IoT devices offers a promising solution to reduce energy costs and carbon emissions, while edge computing enhances real time data processing, ensuring prompt and accurate irrigation adjustments. Materials and Method: The proposed system integrates solar powered IoT devices, soil moisture sensors, weather data APIs, and edge computing devices to manage irrigation. Machine learning algorithms and evapotranspiration models are used to predict irrigation needs and optimize scheduling based on real time data. The system's performance is evaluated through metrics such as water savings percentage, crop yield improvements, and energy consumption, with a comparative analysis against traditional irrigation methods. Results and Discussion: The results indicate that the system successfully reduces water usage by 30% to 40%, increases crop yield by 25%, and operates with energy autonomy, powered entirely by solar energy. The system's adaptability to varying climate conditions ensures optimal crop growth, even under environmental stresses. The integration of renewable energy and edge computing significantly enhances the sustainability and efficiency of irrigation systems.

This study uses primary data in the form of types of damage identified through direct surveys in the field and the thickness of the existing pavement layer carried out by asphalt test-pit testing. The secondary data obtained from the Makassar City Public Works Agency in the form of road pavement data, LHR 2021-2023, CBR, and deflection data in 2023. The results of the analysis show that the condition of Jalan Hertasning - Jalan Yasin Limpo with the pavement on the section is classified as fair with the highest PCI value of 77 in the excellent rating and the lowest of 22 in the very poor rating. The analysis of the new pavement was carried out using the 2017 Bina Marga method, the thickness of the AC-WC layer is 4 cm, AC-BC is 6 cm thick, AC-Base is 8 cm thick, Class A Foundation Layer is 30 cm thick, and Class S additional Foundation Layer is 20 cm thick. Through the mechanistic-empirical method of the KENPAVE program, it shows that the additional pavement layer (overlay) of the Hertasning Street to Yasin Limpo Street section for fatigue cracking damage is 0.0001992 with a load repetition value of 1,441,176 ESAL. The remaining value of the 20-year design life, obtained the thickness of the AC-WC pavement layer of 4 cm, the AC-BC layer of 6 cm, the AC-Base layer of 8 cm, and for the Class A upper foundation layer of 30 cm and an additional layer with Class S aggregate of 20 cm thick which is placed under the Class A Foundation Layer. Meanwhile, based on the KENPAVE program, it shows that during the 20-year design life, the pavement can withstand the load without damage because the load repetition control value is greater than the planned LHR value (Nr). The remaining design life value on Jalan Hertasning to Jalan Yasin Limpo using the Bina Marga 2017 method shows that the planned thickness of the new pavement layer is given an additional layer because the soil bearing capacity is less than 6% so that it is necessary to provide embankment material as a form of soil improvement for the minimum road foundation design in Bina Marga 2017.    

Land cover change has a significant impact on the hydrology of watershed areas, including increasing flood risk. This study aims to analyze land cover changes in the Siborgonyi and Acai sub-watersheds between 2013 and 2022 and their impact on flood potential. The methods used include spatial analysis with GIS, flood modeling using HEC-RAS, and Curve Number (CN) calculations to identify changes in soil infiltration capacity. The results show that land cover changes have a substantial effect on the increase in flood risk. The reduction of forest areas and the expansion of built-up land indicate a large-scale conversion of natural vegetation into residential and infrastructure areas. CN values in 2022 increased across most areas, indicating reduced soil infiltration capacity and increased surface runoff. Flood modeling shows that both the extent and depth of inundation significantly increased in 2022, particularly in downstream areas with basin-like topography.

The preparation of this scientific paper aims to analyze economic, social, environmental, and ecological issues that arise as a result of the interaction between mining activities and the existence of natural resources. This study employs a normative legal research method. Based on the findings, the mining activities of PT. IWIP in North Maluku Province have positive impacts that can support economic development. However, the adverse effects on the environment tend to be more significant. This is evidenced by water, air, and soil pollution caused by PT. IWIP’s mining operations in Central Halmahera Regency. According to the author, this is a very serious issue. The government’s ambition to make Indonesia a leading producer of nickel-based products has endangered the lives of residents in Central Halmahera living near nickel mining areas. These communities are forced to sacrifice their livelihoods, and even their health has been affected. Moreover, there is no accountability from PT. Indonesia Weda Bay Industrial Park regarding the environmental impacts, which are influenced by the new regulations that have been enacted. Article 88 of Law Number 6 of 2023, which ratifies Government Regulation in Lieu of Law Number 2 of 2022 on Job Creation, removes the provision that previously did not require proof of fault. This change makes it more difficult for affected communities to prove the environmental pollution that has occurred.

Antutan Village faces soil fertility problems due to high acidity caused by the intensive use of chemical fertilizers without being balanced with organic matter. This has resulted in low agricultural productivity, especially in rice and cocoa crops. As an alternative solution that is environmentally friendly and economical, Jadam Liquid Fertilizer (JLF) was introduced to farmers through socialization and demonstration activities. This activity aims to increase farmers' understanding of the benefits of organic fertilizer in improving soil fertility and provide skills in the manufacture and application of JLF independently. The method used in this activity includes the delivery of material on the negative impact of excessive use of chemical fertilizers, the importance of microorganisms in the soil, and the technique of making JLF using local materials such as weeds, rice straw, and banana stump. Live demonstrations were conducted to show the fermentation process as well as how to apply JLF on farmland. Farmers were given the opportunity to actively participate in every stage of JLF production and application.The results showed a positive response from farmers who were interested in adopting this technology as an alternative to organic fertilizer. With this socialization and demonstration, it is expected that farmers can reduce dependence on chemical fertilizers and improve soil fertility in a sustainable manner. The application of JLF is expected to be the first step in the development of sustainable agriculture in Antutan Village.

The rapid advancement of technology is evidenced by numerous innovations that simplify human tasks, particularly in the agricultural sector. Various farming methods are offered to produce fruits and vegetables without using chemical pesticides. Hydroponic techniques have been implemented to maximize crop yields without the use of chemicals in the plant care process. The community in Barean Village, Ploso, Pacitan Regency still relies on conventional farming methods. Conventional farming methods, apart from requiring large areas, also have adverse environmental and health impacts due to the use of chemical pesticides. Farmer have to spend quite a lot of capital to provide large amounts of fertiliser to treat the plants in their fields. The results obtained from conventional farming methods are not worth the capital spent. Hydroponic farming metode is an agricultural method that uses water as a growing medium. This method is recognised as an environmentally friendly method, as it uses water and nutrient solutions as a substitute for nutrients found in soil. Autor introduces hydroponic cultivation methods to the public through a digital platform. People from all walks of life can learn farming techniques using the hydroponic method, as it is more visually appealing, and can be operated interactively. Hydroponic techniques can be effectively learned through this 2D interactive media, which provides comprehensive knowledge about the hydroponic method, equipment, materials, and proper cultivation methods. The final section of this interactive media features a simple quiz to assess knowledge for novice farmers. The design of 2D Interactive Based Hydroponic Farming Learning Media is expected to be an attraction for the community in the field of agriculture. The development of this 2D Interactive Hydroponic Farming Educational Media is intended to serve as a solution for hydroponic cultivation education, thereby maximizing agricultural productivity.

This research develops a prototype of an automatic watering device based on the Internet of Things (IoT) and a soil moisture sensor to improve the efficiency of watering crops in agricultural fields. The main problem addressed is the consistency and efficiency of watering in large agricultural fields, where traditional management is prone to human error and inefficient water use. The developed prototype uses an ESP8266 microcontroller (NodeMCU) as the brain of the system connected to a Wi-Fi network, allowing remote monitoring and control via the Blynk application. A soil moisture sensor is used to detect soil conditions in real-time, triggering watering only when needed. This helps optimize water use and increase agricultural productivity sustainably. This research outlines the methodological steps from design, manufacturing, to implementation of the prototype in the field. Evaluation of the results shows that the system successfully regulates watering effectively based on soil conditions, with positive responses from farmers as end users.

Delegating power in land transactions plays a crucial role in ensuring legal certainty and protection in Indonesia. This study examines the legal implications of granting power of attorney in land sales, focusing on the prohibition of absolute power as regulated under the Instruction of the Minister of Home Affairs No. 14 of 1982 and Government Regulation No. 24 of 1997. The research identifies issues arising from the misuse of power of attorney, which is often used to disguise unlawful land ownership transfers. Using a normative legal research method, this study analyzes legislative provisions, judicial interpretations, and case law to evaluate the legality of power of attorney in land transactions. The findings reveal that despite legal prohibitions, loopholes allow misuse, creating risks of legal uncertainty. The study concludes that stricter enforcement and regulatory refinements are needed to prevent such misuse and enhance legal protection for all parties involved.

Practical activities as a form of community service have the aim of applying agricultural land management based on the contribution of soil macrofauna in Moutong Village, Tilongkabila District, Bone Bolango Regency, Gorontalo Province. This community service activity involves students using practical methods, namely by directly testing on previously determined land. The importance of managing agricultural land by considering soil macrofauna (such as earthworms, ants, and Zoysia matrella) is an easy and cheap option to maintain the fertility and productivity of agricultural land. The implementation of this activity went smoothly, starting with preparation, implementation, and closing. Participants were enthusiastic and orderly in following the entire series of community service activities. It is hoped that this management will have an impact on the health and sustainability of agricultural land for future generations.

Marginal coastal land has not been able to be utilized optimally by communities around the coast for agriculture. So far, coastal sand land has limited management and is considered to be poor. With the limited beach sand land, efforts need to be made to increase its productivity by providing soil improvement materials and by the right way to fertilize. The aim of this research is to determine the effect of applying soil amendments and doses of TSP fertilizer to marginal coastal land. The location of this research was carried out in Sidorejo Village, Langsa Lama District, Langsa City with an altitude of ± 10 m above sea level. This research was structured using a factorial Randomized Block Design (RAK), as the first factor, namely the type of soil amendment material P1 (husk charcoal), P2 (wood charcoal), P3 (zeolite) and P4 (clay), the second factor was the level of TSP fertilizer dose, namely D0 (0 kg)/ha), D1 (100 kg/ha), D2 (150 kg/ha), D3 (200 kg/ha) and D4 (250 kg/ha). Data were analyzed using anova (F experiment) from the 5% and 1% levels. If the treatment has a real effect, then continue with the BNJ test at the 5% level. The research results showed that the type of soil amendment material had a very significant effect on the parameters of number of branches and number of pods per plant. The best results were found in the soil amendment type P2 (husk charcoal). And the dose of TSP fertilizer has a very significant effect on the number of pods per plant. The best results were obtained on D4 (25 g/polybag).

The community service report regarding education on soil reinforcement using stone gabions in Walantaka District, Kalodran Village, Serang City, aims to increase public understanding of soil reinforcement, educate on techniques for making and installing stone gabions, and encourage community participation in protecting the environment. This activity includes outreach, training and field practice that actively involves the community. The results of this activity show an increase in community knowledge about soil strengthening, the success of installing stone gabions in areas prone to erosion, and high community participation. It is hoped that this activity can continue and become an example for other regions, with recommendations for continuing educational programs on a regular basis, inviting related parties to support similar activities, and encouraging innovation in environmentally friendly soil strengthening techniques. Thank you to all parties who contributed, especially the people of Kalodran Village, I hope this activity will be beneficial for the environment and society.

Fertilizer is an important factor in increasing the growth and yield of chili plants (Capsicum annuum L.). The selection of the right type of fertilizer greatly determines productivity and environmental sustainability in the long term. This study aims to analyze the differences between chemical fertilizers and organic fertilizers in chili plant cultivation, including plant growth, yields, and their impact on soil fertility. The method used is a literature review by examining various previous studies that discuss the effectiveness of both types of fertilizers. The results of the analysis show that chemical fertilizers provide faster growth and higher yields in the short term because their nutrients are more easily absorbed by plants. However, excessive use can cause soil degradation, decreased organic matter content, and environmental pollution. In contrast, organic fertilizers work more slowly, but are able to increase soil fertility, improve soil structure, and support the balance of agricultural ecosystems in the long term. The combination of chemical and organic fertilizers has proven to be the best strategy in increasing chili productivity while maintaining soil health. Therefore, balanced fertilization with the right dose is highly recommended to ensure optimal harvest results without damaging the environment.

This research aims to determine the effect of using biochar and guano fertilizer on the growth and resistance of pakcoy to drought stress and it is hoped that this research will add information for the development of pakcoy plant cultivation techniques that are more adaptive to dry land. The method used in this research was a 2 factorial completely randomized plan. The first factor is providing Biochar (B) which consists of 4 levels: B0= Control 0 tons/ha, B2= Biochar 5 tons/ha, B3= Biochar 10 tons/ha, B4= Biochar 15 tons/ha. The second factor is the application of Guano fertilizer (G) which consists of 4 levels: G0= control 0 tons/ha, G2= Guano 5 tons/ha, G3= Guano 10 tons/ha, G4= Guano 15 tons/ha. . Based on the level of treatment used, 16 combinations were obtained, BOGO, BOG2, BOG3, BOG4, B2GO, B2G2, B2G3, B2G4, B3GO, B3G2, B3G3, B3G4, B4GO, B4G2, B4G3, B4G4, which were repeated 3 times so that there were 48 experimental units. The parameters observed include plant height, number of leaves and stem diameter. The results of the research showed that there was an interaction between plant height at 7 dap, 14 dap, 21 dap, 28 dap, number of leaves at 7 dap, 14 dap, 21 dap and stem diameter at 14 dap and 28 dap. Treatment with biochar rates of 10 tons/ha, 15 tons/ha and guano fertilizer 10 tons/ha, 15 tons/ha gave good growth results in plant height, number of leaves and stem diameter. This combination of two treatments can increase the efficiency of good nutrient uptake for optimal vegetative plant growth and can increase the soil's capacity to retain air and nutrients, while guano fertilizer provides essential nutrients that support the development of pak choy plants.

Based on data from the United States Department of Agriculture (USDA), global coffee production reached 170 million bags per 60 kg of coffee during the 2022/2023 period. Indonesia is noted as one of the largest coffee-producing countries in the world in 2023. The plastic packaging waste from coffee shops is increasing, posing a potential threat to environmental sustainability, such as soil and water pollution. According to Bizhare Contributor in 2023, the Food and Beverage industry in Indonesia has already reduced plastic waste, but there are still plastic packaging, particularly for coffee beans, that cannot be replaced with environmentally friendly materials. From this, the problem of this research is "How is plastic pouch waste sorted in coffee shops and how is it processed to become selling goods?". This research aims to determine the sorting of coffee pouch plastic waste in coffee shops and the processing process to make it into selling goods. The data collected through interviews shows that from the various coffee shops that have mushroomed in Jakarta, there are also coffee shops that care about the environment by sorting plastic waste. This coffee shop, namely Brookland Coffee, participates in donating coffee pouch waste to Demibumi, the process of making coffee pouches Environmentally friendly by Demibumi starts with collecting coffee pouch waste, cutting off the top, and sewing the outside with patchwork, then attaching it with adhesive so it can be folded. The conclusions obtained by DemiBumi prove that concrete action can be taken to overcome this problem. The main conclusion from this issue is that even though it is a big challenge, efforts to manage plastic waste can be successful and have a positive impact on the environment as long as it is carried out carefully by the community, such as through education, awareness campaigns, and the development of innovative solutions to reduce the use of single-use plastics can be steps. significant step.