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Plastic waste and the limited amount of agricultural land are big problems for the community, especially in rural areas such as Kayuares Hamlet and Ringinanom Village. The aim of this research is to develop a verticulture technique that uses used bottles to optimize the home yard. Tidar University KKN students provided instruction, training and implementation of a verticulture system using used bottles and PVC pipes. The results of the event show that people are more aware of the importance of using yards and managing plastic waste. In addition, a successfully implemented verticulture system increases land use efficiency and produces vegetable harvests that can help family food security by up to 70%. Limited water resources, high initial costs, and ongoing need for assistance are the main problems in implementing this method. The used bottle-based verticulture system allows communities to continue to develop sustainable agricultural methods that are environmentally friendly and economically profitable.

Verticulture is a way of farming or farming using planting media in containers arranged vertically (in tiers) to utilize the school yard.Verticulture can also be interpreted as a cultivation mechanism in a multi-level agricultural system with limited types of agricultural land available in the school area, so that planting using verticulture can be a solution for children in MI. The aim of verticulture is to get around the limited land in the school area, so that people who do not have land or land can still be productive in the agricultural sector.

The small number of people cultivating horticultural crops, especially vegetables, means that people can only buy vegetables to meet their vegetable food needs, where the main factor for this is the decline in the area of productive land used as agricultural land and cultivation caused by the growth of population density in Indonesia. Therefore, the solution to the existing problem is to provide openness of insight and assistance in utilizing narrow land for plant cultivation. One way to cultivate plants is by using the vertical cultivation method. In implementing this activity, the aim is for Kalijudan residents to have knowledge about the vertical cultivation system and plastic bottle waste management. The implementation of this activity uses the method of socialization and training activities or direct practice. Where, the target audience in the practice of this activity is elementary school students and Kalijudan residents. From the results of the discussion, it was concluded that this activity is useful because it can introduce residents and change the condition of the Kalijudan sub-district which was originally a narrow land without plants into a narrow but green land. In addition, this vertical cultivation activity also has benefits in reducing plastic waste that accumulates in the Kalijudan environment.

Vegetable plants are commodities that are always consumed by people fresh and can be a source of vitamins, minerals and contain antioxidants that can inhibit the growth of cancer cells. Mustard greens are one of the vegetable commodities that are considered the best. The unique thing about mustard greens is that they can grow well in low and highlands. This research was carried out for 10 days, this research started on 27 November 2023 to 09 December 2023. The location of this research was at Balai RW 01, Tambaksari Village, Surabaya City, East Java. Data collection starts from the first day after planting the mustard seeds. Subsequent data collection was carried out every 3 days until the 10th day. The research results showed that the best POC dose for the growth of pak choy mustard greens was 40 ml/l water (P2). By administering a dose of 40 ml/l of water to mustard plants, they can produce a height of up to 16 cm and a number of leaves of 14 at 10 HSPT.

Increasing population density is now affecting all aspects. Spatial planning that is not conducive affects the level of community welfare. Reduced land makes people unable to grow crops to the fullest. Modern agriculture can be implemented in a simple way, namely starting from the family environment by utilizing narrow land or through the use of land that is not large. Utilization of land that is not large is by using a verticultural cropping system which can overcome the narrowness of the land. The activities carried out were at KWT Dewi Sartika, to be precise, in the Sentul Village, Blitar City. The activities carried out are counseling and mentoring regarding the incorporation and application of verticultural methods in dealing with less extensive land. The implementation of this activity aims to educate the public regarding the use of narrow land for conventional, organic and commercial farming. This activities also aims to update the vertical system that has been carried out by the community.

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.  

Tema KKN Tematik yang diangkat oleh Universitas Janabadra Tahun Ajaran 2022/2023 adalah “KKN UJB Melalui Circular Economy Menuju Bantul Zero Waste 2025.” Dalam hal ini, sampah sebagai berkah untuk keberlangsungan dan kelestarian lingkungan. Di Padukuhan Joho, Kalurahan Jambidan, Kapanewon Banguntapan, Bantul masih terdapat sampah yang belum terkelola dengan baik. Terlihat beberapa permasalahan yang perlu dipecahkan guna meningkatkan pengelolaan sampah menjadi suatu hal yang bermanfaat. Sehingga diperlukan adanya beberapa program yang mampu memotivasi warga padukuhan Joho terkait pengelolaan sampah, salah satunya yaitu melalui pemanfaatan sampah rumah tangga menjadi media vertikultur. Kegiatan ini bertujuan untuk meningkatkan pengetahuan, pemahaman dan keterampilan masyarakat Padukuhan Joho tentang pengelolaan sampah plastik berupa botol dan budidaya tanaman secara vertikultur dengan memanfaatkan botol bekas serta mampu menyiapkan media tanaman. Metode kegiatan ini yaitu dilakukan dengan pelaksanaan secara langsung mengenai pemanfaatan sampah rumah tangga sebagai media vertikultur. Hal tersebut memberikan dampak yang positif, yaitu terdapat beberapa tanaman vertikultur yang memberikan manfaat bagi warga, serta disisi lain dengan adanya vertikultur tersebut dapat mengurangi sampah botol air mineral bekas yang sudah tidak terpakai.