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All Journal Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Keteknikan Pertanian Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Agrotek UMMat Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL ILMIAH MAHASISWA AGROINFO GALUH Society: Jurnal Pengabdian Masyarakat
Sophia Dwiratna, Sophia
Fakultas Teknologi
Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Public Health Social Sciences Other

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Study on the preparation of GeoWEPP model input data for erosion prediction in Cikeruh-Citarik sub-watershed Amaru, Kharistya; Dwiratna, Sophia; Kendarto, Dwi Rustam; Shofia, Qorry
Jurnal Agrotek Ummat Vol 9, No 4 (2022): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v9i4.11107

Abstract

Cikeruh-Citarik sub-watershed is a part of the upstream zone of the Citarum watershed which is classified as a watershed with critical conditions in West Java. The change in land use as a side effect of the increasing population causes a degradation of the watershed. Land-use change in a watershed without considering any conservation rules leads to erosion, becoming a watershed criticality indicator. Erosion can be minimized by using a prediction model to predict the amount of erosion that might happen, for the result could help to decide which conservation action is needed in the watershed rehabilitation. GeoWEPP is one of the prediction models that is suitable for predicting the amount of erosion on a watershed scale. This research aims to study the preparation of the input data needed in the GeoWEPP model to predict the amount of erosion, especially in the Cikeruh-Citarik sub-watershed. The methodologies that were used in this research are literature study and field survey. According to the research results, the input data needed for GeoWEPP are DEM (Digital Elevation Model) data of the research area, climate database, soil type and soil physical properties database, land use and landcover data, and bridge files for soil, land cover data, and evapotranspiration calculation.
Design and Fabrication of a Microcontroller-Based Automatic LED Grow Light Array System for Leafy Vegetables in Indoor Vertical Hydroponic Nanda, Muhammad Achirul; Saukat, Muhammad; Amaru, Kharistya; Dwiratna, Sophia; Cahyono, Muchamad Ricky Wibo
Jurnal Keteknikan Pertanian Vol. 13 No. 4 (2025): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.013.3.559-575

Abstract

Indoor vertical hydroponic systems require precise and energy-efficient lighting to support optimal growth of leafy vegetables. This study presents the design and fabrication of a microcontroller-based automatic LED grow light system tailored for indoor hydroponics. A tailored LED grow light is necessary because each crop responds uniquely to light quality and intensity, and a customized spectrum ensures optimal growth while minimizing energy use. The system integrates a red–green–blue LED configuration (70:10:20%) with an ESP32 microcontroller, real-time clock (RTC), BH1750 light sensor, keypad interface, and LCD. The lighting cycle was programmed for 12 hours per day and tested continuously over two days. The system demonstrated accurate scheduling, with LED activation at 06:00 and deactivation at 18:00 and a timing deviation of only 1–2 seconds. During operation, the system maintained a stable photosynthetic photon flux density (PPFD) of 260–275 µmol/m²/s, producing an estimated daily light integral (DLI) of about 12 mol/m²/day, which is suitable for leafy vegetable production. Light distribution analysis using cubic interpolation showed that increasing the lamp height from 20 cm to 30 cm improved spatial uniformity, with the most uniform distribution achieved at 30 cm despite a slight reduction in intensity. The system consumed 2.65 kWh per day, covering four LED arrays and the control module. Overall, the proposed system offers a reliable, programmable, and energy-efficient lighting solution for indoor hydroponic environments, supporting sustainable crop production through precise scheduling and an optimized spectral configuration.
Co-Authors Adi Nugraha Asep Yusuf Asri Widyasanti Ayu, Yogina Lestari Boy Macklin Pareira Prawiranegara Cahyono, Muchamad Ricky Wibo Chay Asdak Dwi Rustam Kendarto Edy Suryadi Fuadah, Eza Zahrotul Hidayah, Aidah Luthfi Hilman Syaeful Alam Insani, Fitrah Rahmah Kharistya Amaru Mimin Muhaemin, Mimin Muhammad Saukat Nanda, Muhammad Achirul Oktora, Grace Indah Pithaloka, Nabila Aura Rahmah, Devi M Shofia, Qorry Sugiarto, Anto Tri Wahyu Kristian Sugandi