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  • How to Improve Hydroponic Leafy Vegetable Plant Productivity by Balancing Nutrient Solution, Total Dissolved Solids (TDS), and pH Completed with Literature Review on Standard Vegetable pH & TDS Requirement to Support Sustainable Development Goals (SDGs)

    How to Improve Hydroponic Leafy Vegetable Plant Productivity by Balancing Nutrient Solution, Total Dissolved Solids (TDS), and pH Completed with Literature Review on Standard Vegetable pH & TDS Requirement to Support Sustainable Development Goals (SDGs)

    Penulis: Senny Luckardi; Agis Abhi Rafdhi; Annisa Wulan Sari; Hewa Majeed Zangana; Eddy Soeryato Soegoto

    DOI: 10.17509/ajse.v6i1.89992

    Abstract

    This study explores how to improve the productivity of hydroponic leafy vegetables by balancing Total Dissolved Solids (TDS) and nutrient solution pH. Using bok choy in a floating raft system, the research applies a controlled experimental design to observe how these parameters interact in supporting vegetative growth and yield. Daily monitoring and careful adjustment of nutrient levels and pH are emphasized to ensure optimal nutrient uptake. Balanced TDS and pH conditions enhanced leaf formation and biomass accumulation, while imbalances caused nutrient stress and growth inhibition. This study offers practical guidance for growers to synchronize TDS and pH in real-time for improved nutrient management. The findings contribute to precision hydroponics aligned with sustainable agriculture, specifically supporting sustainable development goals (SDGs) for SDG 2 (Zero Hunger) through efficient food production and SDG 12 (Responsible Consumption and Production) by encouraging optimal use of agricultural inputs. © 2026 Universitas Pendidikan Indonesia.

    Keywords: Hydroponic; Leafy vegetable; pH; Sustainable development goals (SDGs); Total dissolved solids (TDS)

    This article can be accessed at https://www.scopus.com/pages/publications/105018607274

  • Identification of Sustainable Regional Development in Majalengka Regency

    Identification of Sustainable Regional Development in Majalengka Regency

    Author: Lia Warlina

    DOI: 10.1088/1757-899X/407/1/012083

    Abstract

    The objectives of this study are to assess appropriate method for sustainability level in developing Majalengka region, to apply chosen method, and to analyze the result. The methods are literature review and direct calculation to estimate sustainability level in regional development. Sustainable Development Indicators (SDI), Environmental Sustainability Index (ESI), Ecological Footprint (EF) and Wellbeing Index (WI) were assessed as an appropriate method. Wellbeing Index is used to analyze the level of sustainable regional development in Majalengka. The result of the calculation shows that wellbeing index (WI) is 75 and wellbeing stress index (WSI) is 2.72. The value of WSI is between OK and medium band, this shows that the pressure to increase human wellbeing has not override ecosystem pressure. The level of sustainability in the barometer of sustainability is in the medium position, this position is “almost sustainable” for both ecosystem and human system (households). This result is used to recommend Majalengka region stakeholders in formulating development policy. © Published under licence by IOP Publishing Ltd.

    This article can be accessed at https://www.scopus.com/pages/publications/85054878287

  • Forest Fire Detection System Using Wireless Sensor Network (WSN)

    Forest Fire Detection System Using Wireless Sensor Network (WSN)

    Author: Nurhayati S., Indriani S.L., Ansori R.M.R.

    DOI: 10.1063/5.0129221

    Abstract

    This research aims to develop a system that can detect forest fires so that it can prevent the fires from spreading and thus minimize its damage. Forests are natural resources that have great potential to be exploited and conserved, but threats and disturbances often occur that hinder conservation efforts. One of these threats and disturbances is forest fires. One of the impacts of these fires is the loss of biodiversity. Along with the rapid development of technology, by utilizing a Wireless Sensor Network (WSN), the location of forest fires can be detected. The parameters used for fire detection are temperature, humidity, and air quality. The system is built using two sensor nodes and one coordinate node using the XBee S2C radio frequency module to form a wirelessly connected network. All information in the form of temperature formation conditions, humidity, and coordination points to be sent to the server. This data can be viewed on a website via a server computer. The test results show that the monitoring system has been able to detect forest fires based on predetermined parameters. © 2023 Author(s).

    Keywords: forest fire detection system; Wireless sensor network; XBee

    This article can be accessed at https://www.scopus.com/pages/publications/85177571063

  • Progress in the Utilization of Water Hyacinth as Effective Biomass Material

    Progress in the Utilization of Water Hyacinth as Effective Biomass Material

    Author: Asep Bayu Dani Nandiyanto, Siti Nur Hofifah, Dwi Fitria Al Husaeni, Dwi Novia Al Husaeni, Meli Fiandini, Senny Luckyardi, Eddy Soeryanto Soegoto, Arif Darmawan, Muhammad Aziz

    DOI: 10.1007/s10668-023-03655-6

    Abstract

    Water hyacinth (Eichhornia crassipes) is considered a prospective free-floating aquatic plant potentially used to address current issues on food, energy, and the environment. It can grow quickly and easily in various tropical and subtropical environments as long as it has access to adequate light and water to support photosynthetic growth. Ecosystems are threatened by their invasive growth and remarkable capacity for adaptation. However, managing this plant can result in valuable products. This paper demonstrates particle technologies that might be used to utilize water hyacinths, including brake pads, fertilizer, bioenergy, animal feed, phytoremediation agents, bioplastics, and adsorbents. This study is accompanied by a discussion based on the conducted experiments and currently available literature, providing readers with a clearer understanding. Water hyacinth’s capacity to absorb macro- and micro-nutrients, nitrogen, and phosphorus makes it a good plant for phytoremediation. The prospect of producing cellulose makes it prospective as a biomass energy source and livestock feeding. Further, it can be transformed into high-cellulose content particles for applications in bioplastics, brake pads, and adsorbents. The current reports regarding education of water hyacinth to student also were added. Finally, issues and suggestions for future development related to the use of water hyacinths are discussed. This study is expected to provide comprehensive knowledge on how to turn invasive water hyacinth plants into valuable products. © The Author(s) 2023.

    Keywords: Aquatic plant; Ecosystem; Engineering; Environment; Particle technology; Water hyacinthThis article can be accessed at https://www.scopus.com/pages/publications/85171264623