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All Journal Journal International Inspire Education Technology (JIIET) Journal of Computer Science Advancements Journal of Moeslim Research Technik Journal of Loomingulisus ja Innovatsioon Research of Scientia Naturalis Journal of Biomedical and Techno Nanomaterials Journal of Social Entrepreneurship and Creative Technology Journal of Humanities Research Sustainability
Lek, Siri
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Physics Social Sciences Other

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Journal : Research of Scientia Naturalis

 1 
Microbial Contributions to Soil Health and Crop Yield in Organic Farming Systems Yovita, Yovita; Lek, Siri; Kiat, Ton
Research of Scientia Naturalis Vol. 2 No. 1 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/scientia.v2i1.2005

Abstract

Soil health is a critical component of sustainable agriculture, particularly in organic farming systems. Microbial communities play a vital role in maintaining soil quality and enhancing crop productivity. Understanding these contributions is essential for optimizing organic farming practices. This study aims to investigate the specific roles of microbial communities in promoting soil health and improving crop yield in organic farming systems. By examining various microbial interactions and their effects on nutrient cycling, the research seeks to identify key factors influencing agricultural productivity. A field study was conducted on several organic farms, where soil samples were collected and analyzed for microbial diversity and activity. Crop yield data were obtained from participating farmers, and statistical analyses were performed to assess the relationships between microbial metrics and crop productivity. Findings indicate that higher microbial diversity and activity correlate positively with improved soil health indicators, such as organic matter content and nutrient availability. Additionally, crops grown in soils with robust microbial communities demonstrated significantly higher yields compared to those from less diverse microbial environments. This research underscores the importance of microbial contributions to soil health in organic farming systems.
Real-Time Sensing of Airborne Pollutants Using IoT-Integrated Electrochemical Sensors Nampira, Ardi Azhar; Pong, Ming; Lek, Siri
Research of Scientia Naturalis Vol. 2 No. 5 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/scientia.v2i5.2383

Abstract

Air pollution poses a significant threat to public health, demanding effective real-time monitoring solutions. Traditional monitoring systems are often costly and sparsely located, limiting their spatial-temporal resolution. This study aimed to develop and validate a low-cost, IoT-integrated electrochemical sensor system for the real-time detection of key airborne pollutants. We fabricated electrochemical sensors for nitrogen dioxide (NO?), sulfur dioxide (SO?), and volatile organic compounds (VOCs), which were then integrated with a microcontroller and a wireless communication module. The system was calibrated and validated against reference instruments in both laboratory and field conditions. The developed sensors exhibited high sensitivity, good selectivity, and rapid response times (<60s). Field data demonstrated a strong correlation (R² > 0.92) with co-located reference-grade analyzers, and the IoT platform successfully provided continuous data visualization via a cloud dashboard. This study confirms that IoT-integrated electrochemical sensors provide a scalable and cost-effective solution for building dense, real-time air quality monitoring networks, offering significant potential for urban environmental management.
Co-Authors Abdurahman . Ajub Ajulian ZM Augustinah, Ferdianty Chai, Napat Dito Anurogo, Dito Hary Murcahyanto Kiat, Ton Krit, Pong Muntasir, Muntasir Nampira, Ardi Azhar Netty Huzniati Andas, Netty Huzniati Nurdiana Nurdiana Pong, Ming Thai, Aom Togar Timoteus Gultom Yovita Yovita