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Aquaponics is a combined system of fish farming techniques and hydroponic plant cultivation. Fish manure and feed residues are very dependent on the supply of nutrients in the aquaponic system of red tilapia (Oreochromis niloticus) aquaculture. The level of production of vegetable crops in a certain area is also influenced by the total nutrient input ratio of feed to domestic fish per day. The aquaponic system utilizes optimum water supply for each commodity by utilizing a recirculation system. The type of fish used is fish that live in freshwater, a type of tilapia. Fish farming includes the maintenance of fish, which pays attention to the growth and development of fish. Hydroponics itself is a way of farming without using soil as a medium but using water which contains controlled nutrients containing the essential elements needed for plant growth. The location of this research was conducted in Losari Village, Kec. Gondang, Kab. sleepy. It aims to increase the demand for vegetables, limited land and space, efficiency in land use, and decoration. In addition, this cultivation system allows for increased production of cultivated products with limited land and water sources, and creates its own beauty. (9 pt).  

Plastic bottles are a problem in society because every bottled drink after drinking, will become bottle waste. Bottle waste takes a very long time to decompose with the soil. So it needs to get special treatment so that it can be useful. Family Empowerment and Welfare Wonolopo village have a program to collect plastic waste for environmental cleanliness. Behind this environmental cleanliness, it turns out that plastic bottles can be used as a medium in planting plant seeds such as chili seeds, eggplant seeds, and tomato seeds. This community service activity is expected to be able to increase the spirit of independence and economy in Family Empowerment and Welfare to be able to utilize bottle waste so that it can be useful both in planting plants and reducing waste. The results of this activity are expected to increase self-awareness of plastic bottle waste pollution to be utilized for useful things. In addition, Family Empowerment and Welfare (PKK) can also reduce the kitchen shopping budget by utilizing bottle waste as a medium for planting chili, eggplant, and tomato plants.

Ekoenzyme or Eco enzyme (EE) is the result of fermentation from organic waste in the form of vegetables or fruits, Ecoenzyme products are environmentally friendly products, easy to use, and easy to manufacture, and multi-functional, can be used to increase plant nutrients, so that the soil becomes more fertile, to clean the surrounding environment (environmental sanitation), to clean. mop the floor, clean yourself (bathing, brushing teeth, and others) and to provide air, all of which boils down to helping save our earth. Household organic waste is generated by many people every day. Therefore, one of the efforts for waste management is needed to increase the knowledge of the community in the village of Suka Damai, namely additional information and knowledge and awareness of the community group will make EE as one of the multi-functional products, which can overcome the problem of a lot of waste or organic waste, especially in households, The effort is to overcome and protect the environment, which has a good positive effect that can also be used to fertilize the soil. . The method of this activity was carried out using lecture and discussion methods, as well as hands-on practice. The results of this EE making training can help the community in managing organic waste, both fruit and vegetable waste.

Used cooking oil is oil that has decomposed fatty acids at certain limits so that it becomes unfit for use. Used cooking oil is obtained from the process of cooking or heating food using oil repeatedly and at high temperatures. The behavior that is often carried out by the community is that after being used repeatedly, the used cooking oil will be immediately dumped into the ground, ditches, pipelines or waters. This can result in environmental pollution in the form of death of aquatic biota, organisms in the soil, closing soil pores, contaminating groundwater and even increasing COD and BOD in soil and water. This type of community service is classified as expert service, namely community service carried out by lecturers in accordance with their field of knowledge, in this case through training activities in the pursuit of waste cooking oil using practical methods. The results of this service increase knowledge of the physical characteristics of cooking oil damage, the dangers of repeated use of oil, knowledge of waste used cooking oil management, and increased knowledge of waste used cooking oil utilization

Tillage is an activity that aims to increase soil fertility, improve soil structure and create good soil conditions for plant growth. Soil processing can be done in several ways, one of which is the application of fertilizer to plants. Farmers' understanding of efficient and effective fertilization methods is still not fully mastered. Most farmers often fertilize plants beyond the recommended dose. This community service activity aims to (1) farmers can understand knowledge about non-subsidized fertilizer products from PT. Petrokimia Gresik, (2) increase farmers' understanding and knowledge of fertilizer quality and balanced fertilization technology to achieve relatively efficient fertilizer use, (3) farmers can understand the condition of private land and understanding of the amount and type of fertilizer PT Petrokimia Gresik needed. The methods used include surveys, socialization, and practical demonstrations regarding soil testing of farmers in Putat Lor Village, Tajinan District, Malang. Based on this socialization activity, the results obtained are (1) the knowledge of farmers in Putat Lor Village regarding non-subsidized fertilizer products from PT Petrokimia Gresik is increasing (2) increasing knowledge of farmers in Putat Lor Village about fertilizer quality and balanced fertilization technology (3) farmers in Putat Lor Village know the condition of the soil from private land through soil test practices so that they can estimate the type and amount of fertilizer to be used.

The Borepile Foundation and the Implementation Method for the Madrasah Aliyah Madrasatul Qur’an Tebuireng Jombang Building Project, is one of the deep foundation. The use of borepile foundation is an alternative to minipile foundation. Calculation of building weight using the SAP2000 program. The points reviewed are points S-1 and points S-2. Pile bearing capacity analysis using the Mayerhoff method. By using sondir soil evidence (CPT). The construction of the Madrasah Aliyah Madrasatul Qur’an Tebuireng uses a diameter of 80 cm for borepiles with a depth of 11 m and has 23 D22 reinforcement. There are 4 types of pile caps in the borepile. The dimensions of each pile cap, namely PC-1, PC-2, and PC-4, are 150 cm x 150 cm, while PC-3 is 150 cm x 100 cm. For reinforcement in the x-axis direction of 22 D22 – 150 mm, reinforcement in the y-axis direction of 24 D22 – 160 mm. In the implementation method using a mini borepile because it considers aspect of heavy equipment mobilization. Some of the work in progress includes measuring, making reinforcement, drilling, installing reinforcement, casting, and making pile caps.

The purpose of this community service activity is to train and guide the skills of students of West Rengat 1 Vocational School in an effort to increase competence in knowledge, skills and processing of measurement data using a waterpass measuring instrument in soil surveying subjects, because one of the competencies that must be possessed SMK students, especially those majoring in construction and housing engineering, are studying land surveying using a waterpass tool. The methods used in this training activity include presentation, demonstration, practice and evaluation. The results of the evaluation of this activity were obtained from the assignments given to each student. The instructor checks the calculated measurement results. From the initial observation to the final evaluation process, it was found that there was an increase in the knowledge and skills of the students. Initially the participants did not have the ability to do surveying using a waterpass, but after the training was given the participants were able to apply the program. The evaluation results showed that as many as 67% of the participants were able to carry out the measurement assignments that had been given.

The problems that arise due to the use of inorganic fertilizers are quite complex. Soil pollution, economic problems for the community around Lembang Derunan, as well as a decrease in agricultural yields due to the long-term impact of the use of inorganic fertilizers. This occurs due to a lack of public awareness and ignorance regarding the use of organic fertilizer. The aim of making liquid organic fertilizer is to increase public awareness in Lembang Derivatives and overcome problems that arise due to the use of organic fertilizer. Based on the results of this research, it was found that liquid organic fertilizer materials are easy to find and can overcome people's problems in providing fertilizer for plants, especially rice. Rice with liquid organic fertilizer has been proven to be more fertile and able to maintain soil quality compared to rice without organic fertilizer.

Tunneling construction is important to get more attention because considering the magnitude of the risks from this work such as the instability of the carrying capacity of the soil around the construction which can cause collapse during dredging or installation of tunneling walls, or and other problems such as lack of oxygen intake for workers who are carrying out tunneling excavations , the presence of toxic and flammable gases, or falling objects that can result in minor accidents or even death. The purpose of this study is to make a visual assessment through certain media (photos/videos) that can be done quickly regarding the existing conditions of the environment/work, whether the work carried out meets work safety standards, work safety regulations and so on. Rapid assessment can assume that what happened in the field at that time was a reflection of previous work. From the results of the study there were 58 variables which were divided into 4 main variables which were assessed based on the WBS and 26 photos of the environment of the Manikin Dam Tunneling development project taken from several sides. Calculations were made using the results of data from 6 informants, resulting in a P(H | Ecomb) value of 0.932 or a probability of 93.2%, which means that the tunnel work according to the 6 informants was carried out safely. The final value obtained from the analysis is almost close to 1 and all the results of the analysis from the 6 informants are more than 67%.

. Land rights are rights that are obtained from a legal relationship between the right holder and the land, including space above the ground and or space under the ground. The understanding of land rights is one of the individual rights to land, namely rights that give authority to the holders of the rights, whether individually or also as a group of people collectively or as a legal entity, to use in the sense of controlling, using and or taking advantage of certain land parcels. Ownership of land must have legal certainty, both customary law and land law or positive law concerning the certainty of land rights as property rights so as not to cause conflict. The method used by the author in collecting data is through surveys, interviews and studies of primary literature (books that talk about soil) and secondary literature (supporting books). Survey is a quantitative research using the same structured questions for everyone, then all the answers obtained by the researcher are recorded, processed, and analyzed.

Learning Media applications that use an Android-based material delivery system are expected to facilitate the delivery of material, where previously material was only found in books and the internet. Learning materials that only come from books reduce the reader's understanding because there are only text and pictures. This is what underlies the selection of the thesis title "Application of Android-Based Hydroponic Vegetable Growing Learning Media Application" in the hope that it can be a solution to help people who take part in the training understand material about growing vegetables by hydroponics.Hydroponics is an agricultural activity carried out by using water as a medium to replace soil. So, hydroponics can be interpreted as a work or management of water as a medium for plant growth without using soil media as a planting medium and taking the required mineral nutrients from a nutrient solution dissolved in water. The learning media application for growing hydroponic vegetables based on Android is limited to material on hydroponics, planting media and tools used in hydroponics, the steps needed for hydroponic farming, systems or techniques that exist in hydroponics.

This research was conducted by involving the active participation of the Rungkut Kidul community. Through activities to introduce simple hydroponic concepts, communities are empowered to develop sustainable farming skills. The community is given knowledge about the basic principles of hydroponics, nutrient management, selecting suitable plants, and proper irrigation  techniques. The  results  showed  that  community  empowerment  through  simple hydroponics had a positive impact on the Rungkut Kidul community. Communities are able to independently implement simple hydroponic methods, increase crop production with better yields, and reduce dependence on environmental factors such as rainfall and poor soil quality. In addition, empowerment through simple hydroponics also has a significant socio-economic impact. The Rungkut Kidul community can utilize hydroponic crops for their own consumption needs and as an additional source of income through selling their crops at the local market. This reduces their dependence on external food supplies and boosts the local economy. The introduction of modern agricultural technologies such as simple hydroponics can provide sustainable solutions to increase local food availability, reduce dependence on uncontrollable environmental factors, and improve people's economic well-being.

Waste management is one thing that needs to be of concern to the community. Waste management is carried out as an effort so that waste does not pollute the environment and can be utilized so that it functions. Waste management in the community can be done through making compost that can be reused by the community. The goal of the composting process is to convert organic matter from household waste into compost that can be safely applied to fields without causing negative effects to either the soil or domesticated plants. The results of this compost are solid or liquid. Procurement of composters was carried out for the community in all hamlets of Bareng Village, Bareng District, Jombang Regency, East Java, by holding socialization and composting practices to provide education to all Bareng Village residents located at the Village Hall. Procurement of composters is carried out as an effort to increase knowledge about waste management through composters, so that people can make the most of household waste.

Indonesia has earned the nickname as an "agrarian" country, this is because most of the population works as farmers. This nickname is very suitable for the situation in several regions in Indonesia, one of which is in Nganjuk Regency, namely in the village of Balonggebang. Balonggebang Village is the largest village in Gondang District, Nganjuk Regency. This village has a large enough agricultural land so that the majority of Balonggebang villagers work as farmers and the main commodities are rice and shallots. The first determining factor is the level of soil fertility. To determine whether the soil is fertile or not, it can be seen by using a soil fertility meter. In this modern era, soil fertility determination tools can be made simply and can be used as appropriate technology.

Medokan Ayu Village is 3 km from the UPN "Veteran" East Java campus. The location of this service is located in Griya Amerta Housing RW 15, Medokan Ayu Village. Like housing in general, residential land area is usually relatively small, has relatively narrow yards and the distance between houses is also close to each other. So that the area of ​​the yard owned by the community for cultivating crops while developing agriculture is not very supportive. Verticulture or what can be called vertical farming is a system of cultivating plants vertically, so that the planting medium is put in a container that stands and rises up. This cultivation technique can be used in two ways, namely with water and soil as the planting medium. Pakcoy can be harvested when it is 40-50 days old, while curly lettuce can be harvested when it is 40-60 days old. This verticulture cultivation uses a mixture of several planting media such as soil, cocopeat, roasted husks, and kohe. The goal is for the plants to meet their nutritional needs and nutrients, so that the plants can grow optimally and have good quality.  

Each village has potential, both physical potentials such as climate, soil, water, geographical environment, human resources and others as well as non-physical potentials such as community culture. In Penaga Village, Teluk Bintan District, the majority of people's livelihoods as fishermen and marine catches are still not optimally utilized. Therefore, service activities to process fish into fish crackers to support the economy of the people of Penaga Village as one of the efforts to empower the community towards independence in entrepreneurship and optimize the utilization of potential. The service method is carried out with a training program where this program is one part of the community service program activities in the form of training on how to process fish crackers by utilizing marine catches into fish crackers so that they can have more selling value, business licensing and legality, and marketing through digital marketing. It is hoped that after attending this training, the community will be motivated to develop the potential in Penaga Village

Pacal Dam as one of the infrastructures that has an important role in the life of the people of Bojonegoro Regency. Pacal Dam is one of the providers of water resources in meeting the needs of the surrounding community in irrigation and agriculture aspects. In addition, the Pacal Dam is also a water conservation medium which is one of the efforts to reduce surface runoff originating from the upstream of the river so that flooding does not occur downstream. Therefore, in planning, it is necessary to accurately calculate the stability of the weir. Spiral stability calculations are carried out to determine whether the weir is stable enough to withstand the external forces that occur. Factors that can affect stability include the weight of the weir, active and passive earth pressure forces, and the resulting uplift. In the stability analysis of the Pancal Dam, it was found that under normal conditions the SF (safety factor) result was 1.6082822, while in flood conditions the SF result was 1.55237, where the SF value was > 1.5 so it can be concluded that the weir planning has been able to withstand the overturning moment caused by water pressure, soil, and uplift pressure in flood conditions.

Hydroponics is a method of cultivating plants that does not use soil media but emphasizes meeting the nutritional needs of plants. Hydroponic cultivation requires less water than soil cultivation. Maintenance of hydroponic cultivation is very easy and can be done at any time regardless of the season. Cultivation of plants planted namely pakcoy. One of the advantages of growing pakcoy plants hydroponically is that they are very resistant to pests and diseases, so there is no need to control pests and diseases. The development of pakcoy hydroponic cultivation is used as an appropriate technology that is applied at SDN Wonosalam 1. The hydroponic system at SDN Wonosalam 1 is implemented as an alternative to supporting cultivation for adiwiyata classes and also as an introduction to students about hydroponic cultivation. By going through several stages of implementation, such as the initial seeding stage to the final harvesting stage, the hydroponic system involving Wonosalam 1 Elementary School students can be said to be successful in harvesting. It is hoped that this activity will provide knowledge and experience to all students of SDN Wonosalam 1

Worm infection is a health problem that often occurs throughout the world, especially in Indonesia with a high prevalence. One of the most common helminthic infections in Indonesia is the Soil Transmitted Helminths worm. Children are an age group that is susceptible to this infection. Worm infections can have serious consequences if not treated with deworming medication and a clean and healthy lifestyle for the person. This community service is carried out with the aim of conducting counseling about environmental health, especially in helminthiasis at the Alak Final Disposal Site, Kupang City. This activity conducts counseling and examination of the community on how to deal with helminthiasis in children. Subjects as many as 30 children. The worm examination was carried out using the direct slide method and then observed under a microscope with a magnification of 10x-40x. Based on the results of the examination found Ascaris lumbricoides eggs by 10%. So based on the results of this service it shows that there is a prevalence of worm infection in the Alak Final Disposal Site. Therefore, it is suggested to parents and especially children to further improve the Clean and Healthy Lifestyle (PHBS) to avoid worm infection.

Riau is one of three provinces with dominant peatlands. Indragiri Hulu Regency is the sixth largest district with the largest area of ​​peatland with a value of 222 thousand hectares. Particularly in Sekip Hilir Village, Rengat District, Indragiri Hulu Regency, there is quite extensive peatland and in this location there is infrastructure in the form of Jalan Rengat – Bukit Meranti. The construction of road infrastructure on peatlands has experienced many problems. This is because peat soil has a very low carrying capacity so that the settlement that occurs is large and unable to support the work load. Stabilization efforts are needed to improve the carrying capacity of peat soils. Stabilization on peat soil will be carried out chemically using lime as a stabilizing mixture with variations of 5%, 10% and 15%. From the results of the tests carried out, namely the addition of lime variations to the peat soil stabilization mixture is proven to increase the CBR (California Bearing Ratio) value. The CBR value of peat soil mixture with the addition of 5% lime was obtained at 17.28%. At the addition of 10% lime the CBR value increased to 21.81% and at the addition of 15% lime it increased to 30.04%. From the CBR value of peat soil with variations in lime mixture obtained, the authors prove that an addition of ≥ 5% has been able to achieve a laboratory CBR standard value of 17.28% and has met the Bina Marga specifications for road pavement subgrade, namely ≥ 6%. .