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All Journal Jurnal Dinamika Pengabdian (JDP) AbdiTechno (Jurnal Pengabdian Masyarakat) Salaga Journal
Useng, Daniel
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Agriculture, Biological Sciences & Forestry Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Journal : Salaga Journal

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Estimation of Soil C-Organic Content Based on Reflectance Values Generated from Spectrometer Salmia, Salmia; Useng, Daniel; Samsuar, Samsuar
Salaga Journal Volume 03, No. 1, June 2025
Publisher : Program Studi Teknik Pertanian Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70124/salaga.v3i1.1813

Abstract

C-Organic is an important component of soil fertility. The intensity of agricultural land use affects the organic matter content in the soil. A spectrometer can be used to measure organic matter content through reflectance values. This study aimed to compare reflectance values and C-Organic content in rice fields with planting Index (IP) of 100 and IP of 300 in Maros Regency, as well as to analyze the relationship between reflectance values and laboratory test results. The method used involved collecting soil samples from both types of rice fields, measuring reflectance using a spectrometer in the Blue, Green, Red, and NIR spectra, and analyzing their relationship with C-Organic content. The results showed that reflectance values and C-Organic content in 300 IP were higher than in 100 IP, with the highest coefficient of determination (R²) was in red spectrum, i.e. 0.9425. The C-Organic content at the research field was classified as very low, ranging from 0.61 to 1.05%, with a higher average in 300 IP (0.96%) compared to 100 IP (0.74%). This study concluded that a spectrometer can be a fast and accurate alternative for detecting soil C-Organic content, especially at a wavelength of 650 nm.
Planning a Micro-Hydro System for Irrigation and Agricultural Electrification in Campaga Village, Tompobulu District Hamzah, Wahdaniah; Achmad, Mahmud; Azis, Abdul; Useng, Daniel; Haerani, Haerani; Sabaniah, Syahrial
Salaga Journal Volume 03, No. 2, December 2025
Publisher : Program Studi Teknik Pertanian Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70124/salaga.v3i2.1852

Abstract

Dependence on fossil fuels and limited access to electricity and clean water are challenges to agricultural productivity in many rural areas of Indonesia, including Campaga Village. This study aims to plan an appropriate water energy conversion (pico-hydro) system to meet the operational energy needs of agriculture, particularly irrigation pumps and lighting. The planning began with measuring the potential of resources (discharge, head) and analyzing energy needs based on agricultural applications. The measurement results showed an average discharge of 0.134 m³/s with an effective head of 10.5 m, with the potential to generate mechanical power for pumps of 3.9 kW and electrical power of 2.2 kW. The needs analysis confirmed that this potential is more than sufficient to power one irrigation pump unit (~3 kW) and light 21 road lighting points (0.63 kW). The technical planning recommends the use of a crossflow turbine and a standard AC generator in accordance with the principles of appropriate technology: simple, locally maintainable, and directly integrated with agricultural needs. The conclusion of this study shows that the designed pico-hydro system is not only technically feasible but also has the potential to become strategic supporting infrastructure to improve irrigation water resilience, extend farming hours, and ultimately empower the economy of agrarian rural communities.
Co-Authors Abdul Azis Abdul Waris Ali, Hikmah Haerani Haerani Hamzah, Wahdaniah Hardinasinta, Gemala Iqbal Iqbal Junaedi Muhidong Mahmud Achmad, Mahmud Mursalim Mursalim Mursalim, . Nurfaridah, Sitti Nursusilowati, Indah Sabaniah, Syahrial Salengke, . Salmia, Salmia Samsuar, Samsuar Sapsal, Muhammad Tahir Suparding, . Thamrin, A M Totok Prawitosari