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The consistent decline in cucumber production in Indonesia indicates limitations in conventional cultivation systems, particularly due to land scarcity and inefficient resource management. This condition has encouraged the development of hydroponic systems as a more controlled and productive cultivation alternative. This study aims to critically analyze the key factors determining the success of hydroponic cucumber cultivation and to identify the most influential management aspects in improving yield. The method employed is a literature review, examining various recent studies related to hydroponic systems, nutrient management, growing media, and environmental factors. The results show that the advantages of hydroponics lie not only in land and water efficiency but also in the ability to precisely control growth variables. However, optimal productivity highly depends on the proper integration of nutrient management, particularly the regulation of pH, electrical conductivity (EC), and nutrient balance, as well as the control of environmental factors such as temperature, humidity, and light intensity. Inaccuracy in a single component can significantly reduce plant performance, even when other factors are optimal. Therefore, an integrated approach combining nutrient and environmental management simultaneously is essential to enhance hydroponic cucumber productivity. This study confirms that hydroponics has strong potential as a strategic solution to support sustainable agriculture amid land limitations in Indonesia.

Poor soil quality and inefficient nutrient utilization remain major constraints in tomato (Solanum lycopersicum L.) cultivation, often resulting in reduced plant growth, lower productivity, and suboptimal fruit quality. This study aims to evaluate the growth performance of rose tomatoes through the integration of open-field cultivation and hydroponic planting systems. The research methods included land preparation using the Pythagorean technique to ensure proper spacing and planting layout, the application of organic fertilizers to improve soil fertility, and the transition to a hydroponic drip irrigation system using rockwool as the growing medium during weeks 1 to 7 of plant development. Plant growth parameters, including plant height, leaf development, stem vigor, and overall plant health, were observed throughout the cultivation period. The results indicated that the combination of appropriate soil management practices and precise nutrient delivery in the hydroponic system significantly enhanced nutrient uptake and supported healthy plant growth. Furthermore, the drip irrigation system helped optimize water use efficiency while reducing nutrient losses. This integrated cultivation approach demonstrated its potential as an effective solution for maintaining crop quality and productivity, particularly in areas with limited land resources. Overall, the findings suggest that integrated management practices can provide a practical, efficient, and sustainable strategy for farmers seeking to improve horticultural production in modern agricultural systems.

This research review identifies and analyzes the potential of Romaine lettuce (Lactuca sativa var. longifolia) cultivation using the Nutrient Film Technique (NFT) in greenhouse environments as a high-value horticultural commodity. Horticulture is a strategic sector in Indonesia for improving farmer welfare and meeting the growing demand for healthy food. Conventional farming faces challenges such as land conversion, climate instability, and high pesticide residues. This study examines how the NFT hydroponic system serves as an innovative solution by providing controlled environments that enhance growth and quality. Findings indicate that Romaine lettuce grown via NFT achieves higher productivity and faster harvest cycles, with a feasibility study showing an R/C ratio of 2.40, indicating high profitability. Furthermore, the integration of controlled environment agriculture supports urban farming initiatives and mitigates risks from climate change and pests. This review concludes that adopting NFT technology is essential for developing a sustainable, efficient, and high-quality agricultural system in Indonesia, particularly in urban areas with limited space.

Vegetables are an important horticultural commodity in fulfilling community nutritional needs; however, their consumption level in Indonesia remains relatively low, necessitating efforts to increase production. Spinach (Amaranthus sp.) is a promising vegetable due to its short growth cycle, ease of cultivation, and high nutritional value. Limited agricultural land, particularly in urban areas, poses a major constraint to conventional cultivation, thereby encouraging the adoption of alternative technologies such as hydroponics. The hydroponic system, especially the Nutrient Film Technique (NFT), offers efficient use of land and water while enabling better control of plant growth. This review aims to identify hydroponic cultivation techniques for spinach in greenhouse conditions and to analyze factors influencing its success, including nutrient concentration, growing media, pH, temperature, and light intensity. The findings indicate that optimal nutrient concentration ranges from 410–900 ppm, supported by proper environmental and pH management to enhance vegetative growth. The implementation of the NFT system improves production efficiency, resulting in more uniform, cleaner, and higher-quality yields. Nevertheless, challenges remain, including nutrient management, environmental fluctuations, and pest and disease risks. Therefore, proper and sustainable system management is essential to ensure successful hydroponic spinach cultivation.

In this study, a device was designed and implemented to control the water pH and nutrient density (concentration) in a hydroponic system using the Mamdani method of fuzzy logic, thus maintaining nutrient solution parameters within an optimal range for plant growth. This system relies on three input values ​​obtained from a water pH sensor, a nutrient TDS sensor, and a flow meter. These three sensors are used to control four peristaltic motors, each of which functions to increase and decrease the pH and nutrient levels in the solution. The speed of the peristaltic pump motor, when the water pH is set at 6.5 and the nutrient concentration is set at 700 ppm, is influenced by the difference between the sensor reading and the set point. The greater the difference, the higher the peristaltic pump motor speed. Conversely, the smaller the difference between the sensor reading and the set point, the lower the peristaltic pump motor speed. Furthermore, the amount of water flowing through the pipe also influences the peristaltic pump motor speed.

This literature study examines hydroponic solutions (urban agriculture), particularly through hydroponic methods, as a response to the issue of significant urban agricultural land shrinkage and land conversion. Data shows a drastic reduction in rice fields in Sukawati District, Bali, from 497.24 Ha in 1985 to only 211.42 Ha in 2016, accompanied by a change in the profession of residents from farmers to entrepreneurs. This land conversion not only reduces agricultural areas but also has the potential to eliminate farmers' livelihoods. The method used is a literature review (narrative review) to collect and analyze studies related to the use of hydroponics in maximizing limited land in urban areas. The results of the discussion focus on hydroponic training provided to housewives from the Family Welfare Movement (PKK) and the City Youth Organization (Karang Taruna). This training aims to empower and utilize the free time of housewives, covering materials from the basic concepts of hydroponics, seed preparation, planting, maintenance, to harvesting. Hydroponic practices have been responded to positively by residents, and the PKK/Karang Taruna group is prepared to become mentors for other members. The benefits of hydroponics were emphasized as a highly efficient cultivation method, capable of saving up to 70-90% of water, enabling year-round food production, and providing faster and higher plant growth and yields. The outcome of this activity was the establishment of a communal hydroponic garden and each member's plan to grow hydroponically independently, demonstrating the success of hydroponics as a real solution to improving food security and sustainability in dense urban environments.

This study aims to determine the effect of shoot pruning and the application of MKP (Monopotassium Phosphate) foliar fertilizer on melon seed production (Cucumis melo L.) in a hydroponic system. The study was conducted in Jember, East Java, using a randomized block factorial design (RAK) involving two treatment factors: shoot pruning (C1: no pruning, C2: pruning at the 20th node, C3: pruning at the 25th node) and MKP foliar fertilizer application (M1: 3 g/liter, M2: 5 g/liter), with four replicates. The parameters observed included fruit weight, number of viable seeds per fruit, fruit diameter, and weight of 1000 seeds. The results showed that pruning at the 20th node and applying a concentration of 5 g/liter of MKP (C2M2) yielded the highest results in terms of fruit weight (583,585 grams), fruit diameter (10,527 cm), and weight of 1000 seeds (18,057 grams). Meanwhile, pruning at the 20th node and applying a concentration of 3 g/liter of MKP (C2M1) produced optimal results for the parameter of number of viable seeds per fruit, which was 325,750 seeds.

The Sustainable Food Yard Program (P2L) has great potential in improving food security and women's empowerment, but there are still gaps related to the effectiveness of the program in areas with certain geographical and social characteristics such as Kalolok Village, therefore this study is expected to provide theoretical contributions in the development of community-based empowerment models as well as practical contributions for village governments and stakeholders in designing sustainable empowerment strategies. This study uses the SWOT Analysis Method (Strengths, Weaknesses, Opportunities, Threats Analysis). SWOT is used to evaluate the strengths, weaknesses, opportunities and threats of the empowerment strategy applied to the Women Farmers Group (KWT) in the Context of the P2L Program in Batupapan Village. The results of the study using SWOT analysis The results of the IFAS analysis (2.67) and EFAS (2.57) indicate that the position of KWT Kalolok is in Quadrant I (Aggressive Strategy). This means that the group possesses significant internal strength and is supported by significant external opportunities. Therefore, development strategies need to focus on cultivation expansion, commodity diversification, technological innovation, marketing strengthening, and institutional development and internal capital. Therefore, developing cultivation innovations such as vertical farming/hydroponics is necessary to maximize limited land and providing intensive mentoring to assist in marketing produce through villages, village-owned enterprises (BUMDes), and local MSME networks.  

A research project entitled Optimisation of Gandasil D Use to Increase Kale (Barassica Oleracea Var. Acephala) Productivity in Hydroponic Systems was conducted at the Pakkea Experimental Garden, Faculty of Agriculture, North Toraja Regency, from March to June 2025. This research project aims to determine the response of Ab mix nutrients and Gandasil D fertiliser in the DFT system to the growth and production of kale plants. The method used in this study was a randomised block design (RAK) with 6 levels of Gandasil D concentration. (KO = Control), (K1 = 0.5 grams/litre of water), (K2 = 1 gram/litre of water), (K3 = 1.5 grams/litre of water), (K4 = 2 grams/litre of water), (K5 = 2.5 grams/litre of water) with 3 replications and with AB MIX concentrations, 0 to 7 days after planting = 400 ppm, 8 to 14 days after planting = 600 ppm, 15 to 21 days after planting = 800 ppm, 22 to 28 days after planting = 1000 ppm, 29 to 35 days after planting = 1200 ppm, 36 days and onwards until harvest = 1500 ppm. The variables observed in this study were plant height, leaf length, leaf width, number of leaves, and plant stem diameter. The results showed that a concentration of Gandasil D 2.5 grams/litre of water gave the best results with an average plant height of 37.93 cm, 12.56 leaves, leaf length of 24.16 cm, leaf width of 14.31 cm, stem diameter of 11.69 mm, and harvest weight of 232.89/plant. The data were analysed using analysis of variance (ANOVA) and followed by a post hoc test at a significance level of 0.05. The analysis of the feasibility of farming showed an R/C ratio of 1.03, which means that kale cultivation using a hydroponic system and the aforementioned nutrient concentration is feasible and profitable.

The research project is titled Production Potential of Bitter Melons (Momordica charantia L.) Using POC Azolla and AB Mix on the Deep Flow Technique (DFT) System was carried out in Bungin, North Makale District, Tana Toraja Regency from May to August 2025. This study aims to determine the economic potential of bitter melon plants by providing AB Mix and POC Azolla nutrients in hydroponic methods and analyze the best influence of these nutrient combinations on the growth and production of bitter melon plants. The research method used was a Group Random Design (RAK) with four treatments, namely 100% AB Mix, AB Mix 80% + POC Azolla 20%, AB Mix 70% + POC Azolla 30%, and AB Mix 60% + POC Azolla 40%. The results of the study showed that P1 treatment (AB Mix 80% + POC Azolla 20%) had the best influence on the vegetative and generative growth of bitter melon plants. This treatment results in a higher average plant height, leaf count, and fruit weight than other treatments. This proves that the combination of Azolla liquid organic fertilizer (POC) with AB Mix is able to provide a balance of nutrients that support photosynthesis, tissue formation, and fruit quality. In addition, the application of the DFT hydroponic system has been proven to increase the efficiency of water and fertilizer use, reduce the risk of soil pest attacks, and produce more hygienic bitter melon products. These findings show that hydroponic cultivation innovation with the use of POC Azolla can be a sustainable solution in supporting food security while being environmentally friendly. Thus, this research makes an important contribution to the development of modern agricultural technology, especially in optimizing the production of vegetables with high economic value.

The KKN Program of Universitas PGRI Adi Buana Surabaya for the 2024–2025 period in Kajeksan Village, Sidoarjo Regency, focuses on the issue of family food security by implementing a mixed farming system based on the use of used goods. This service method uses Participatory Action Research (PAR) through the stages of to know (identifying problems), to understand (socialization of concepts), to plan (design a system from gallons of mineral water), to act (training and assistance in making hydroponics-aquaponic systems, making fish feed from household waste, and natural vitamins), and to change (evaluation and sustainability). As a result, there is an improvement in community skills with the realization of catfish harvest along with optimal kale growth, opening household business opportunities, and creating a sustainable empowerment model through appropriate technology transfer.

Environmental character education from an early age is a strategic step in developing a generation that cares about the natural world. Instilling this value is crucial in concrete ways so that children can understand and directly experience the benefits of protecting the environment. One effort undertaken is through a simple hydroponic learning activity involving children from TKS Kartika V 16. The activity was held once at the Samarinda State Agricultural Polytechnic with the support of lecturers as resource persons. Through a hands-on learning method, the children were introduced to how to grow lettuce and bok choy using a simple hydroponic system. The learning process included an introduction to tools and materials, an explanation of the planting stages, and plant care. Observations throughout the activity showed high enthusiasm among the children. They were actively involved, from preparing the planting medium, planting the seeds, to providing air and nutrients to the plants. This activity fostered a sense of care and responsibility for the plants they grew themselves. Furthermore, the children's fine motor skills were also demonstrated through activities such as arranging the planting medium, sowing the seeds, and assembling the hydroponic equipment. This activity not only developed individual skills but also taught social values such as cooperation and mutual assistance. Children learn to work in groups, help each other, and appreciate each other's roles in the planting process. This hands-on, hands-on approach has proven effective in strengthening environmental awareness in a fun and contextual way. Therefore, environmental education through hydroponics can be a practical, inspiring, and easy-to-implement learning medium for young children, while also serving as a concrete example of how character education can go hand-in-hand with the introduction of environmentally friendly technologies.

The increasing demand for sustainable agricultural practices has led to the adoption of hydroponics, a method of growing plants in nutrient-rich solutions without soil. This method is particularly effective in controlled environments where resource efficiency is paramount. However, the success of hydroponic systems depends heavily on precise nutrient management, especially for micro-nutrients, which are crucial for plant health and productivity. Traditional methods of nutrient monitoring are often labor-intensive and lack the real-time responsiveness needed for optimal nutrient control. This study addresses the challenge of real-time nutrient management in hydroponic systems by developing a miniature sensor system integrated with Internet of Things (IoT) technology. The proposed system is designed to detect micro-nutrient concentrations accurately and transmit data in real-time to a cloud platform for continuous monitoring and automated control. Advanced algorithms are employed for data processing and calibration, ensuring high accuracy in detecting micro-nutrient levels. The system was tested in a controlled hydroponic environment, where it demonstrated high accuracy with minimal error margins, validated by a consistently low Mean Absolute Error (MAE). The integration of IoT allowed for seamless data transmission and real-time analysis, enabling immediate adjustments to nutrient levels as needed. This research contributes to the advancement of precision agriculture by providing an effective solution for real-time nutrient management in hydroponic systems, potentially improving crop yields and resource efficiency.

The main issue faced by BSI Farm is the suboptimal quality control at each stage of hydroponic kale production, resulting in inconsistent product quality. This study aims to analyze the quality of hydroponic kale products at BSI Farm using the input-process-output (IPO) approach. The analysis covers all stages of production, from the selection of superior seeds, nutrient and water management, cultivation using the NFT (Nutrient Film Technique) system, to harvesting and packaging. The results show that the implementation of strict quality control at each stage successfully produces fresh, clean, pesticide-free kale that meets modern market standards. Production waste is managed through a grading system and utilized as animal feed to minimize environmental impact. The main challenges include pest attacks, plant diseases, and inconsistent harvests due to a lack of standardized procedures. However, these can be addressed through regular monitoring, appropriate use of pesticides and fungicides, and consistent implementation of cultivation SOPs.

This community service program aims to introduce and implement a hydroponic farming system as an alternative effective planting medium to improve the economic welfare of the community in RT 19, Bumiayu Village, Bengkulu City. This activity is motivated by the limited agricultural land in urban areas and the minimal use of narrow spaces for productive activities. The methods used include counseling, training, and direct practice of hydroponic cultivation by utilizing used goods such as plastic bottles. The results of the activity showed that the community was very enthusiastic in participating in the training and were able to apply basic hydroponic techniques independently. From an Islamic economic perspective, this activity reflects the values ​​of justice, welfare, and empowerment, where the community is not only given knowledge, but also guided to become more economically independent. Hydroponics has proven to be an alternative to modern agriculture that can increase productivity and empower the community in a sustainable manner.

Interesting agricultural cultivation technology that is easy to apply by the community, namely hydroponic agribusiness. Plant cultivation techniques without using soil, but using water enriched with nutrients needed by plants. These hydroponic plants are becoming increasingly popular because they are efficient, environmentally friendly, and can be done in limited land. This activity was carried out with the background of raising awareness, knowledge, insight, and skills in cultivating vegetables using the hydroponic method. The form of this activity is socialization carried out and attended by students, administrators and staff of Ma'had Zaadul Ma'ad on Jl. Padat Karya Lorong Melati RT 01, Talang Jambe Village, Sukarame District, Palembang. namely lectures, discussions, and direct practice on hydroponic cultivation. This activity received a good response from PKM participants, where participants enthusiastically followed the course of the workshop activities, namely making hydroponic plant seeds, hydroponic devices, making AB mix nutrients, planting, harvesting, to preparing financial reports. Hydroponic plants have a higher selling value compared to other plants. Of course, this is a potential profitable and promising business opportunity, so that male and female students, administrators and staff can utilize the yard to cultivate hydroponic plants. The prospects for this plant are very bright in the long term because consumer demand never stops. This program has a significant positive impact, but it is recommended that there be further development to expand the reach and sustainability of activities.

This research was conducted on Jalan Tampok, Tanjung Selamat Village, Sunggal District, Deli Serdang Regency, North Sumatra. A non-factorial Randomized Block Design  was used, consisting of only one factor, with five treatments and four replications: 0, 1, 2, 3, and 4 liters of coconut water fertilizer. The results showed that the use of coconut water fertilizer had no significant effect on plant height 1, 2, and 3 weeks after planting, and fruit weight per plot. However, it had a highly significant effect on plant height 4 and 5 weeks after planting, stem diameter, number of leaves, and root length.   In general, increasing the dosage of coconut water POC tends to result in a better growth response during the vegetative phase of the plant. This suggests that the natural hormones in coconut water can support plant cell division and elongation. However, plant response to treatment is still influenced by environmental factors and dosage, so not all parameters show a significant effect. Further research is needed to determine the optimal dosage that is more effective on production yields.

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  

The need for urban communities to consume vegetables is increasing. This has caused people to start cultivating vegetables using hydroponic techniques. However, due to their busy activities, they do not have enough time to monitor and control hydroponics, which must always be in ideal conditions. This paper designs and implements an Internet of Things-based monitoring system to help hydroponic owners monitor their hydroponics anywhere and anytime. The built system requires a monitoring device assembled using a NodeMCU ESP8266 microcontroller, a pH detection detector sensor, and a DHT22 temperature and humidity sensor. This system uses the Mamdani Fuzzy Logic algorithm to determine warnings to be displayed on the application interface when the water pH, temperature, and humidity are in certain conditions. The Mamdani Fuzzy Logic algorithm can interpret environmental data into a warning that humans can easily understand, even if they lack technical expertise. In addition to being able to help monitor, this system also allows owners to find out what elements need to be added or changed for their hydroponic place. Our evaluation results show that the defuzzification stage in the application has high accuracy, which is 99.92%, compared to Matlab’s results.

Food security and community economic empowerment are major challenges in many rural areas, including Sukolilo Village. This research aims to develop and analyze the effectiveness of an aquaponic system, a combination of hydroponics and fish farming, as an innovative sustainable solution. The methods used include observation, experimentation, and interviews with the local community. The results showed that the aquaponic system is able to increase agricultural productivity with better water use efficiency and provide economic benefits through crop diversification, namely vegetables and fish. In addition, the system is proven to be environmentally friendly as it utilizes organic waste from fish as plant nutrients, reduces the use of chemical fertilizers, and optimizes local resources. The implementation of the aquaponic system in Sukolilo Village not only improves food security but also opens up new business opportunities for the community, thus contributing to the improvement of local economic welfare. It is hoped that this model can be replicated in other areas as part of a sustainable agriculture-based economic development strategy.