cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Haerani
Contact Email
haerani@agri.unhas.ac.id
Phone
-
Journal Mail Official
salaga@unhas.ac.id
Editorial Address
Program Studi Teknik Pertanian Universitas Hasanuddin. Alamat : Fakultas Pertanian Universitas Hasanuddin, Kampus Unhas Tamalanrea KM 10 Makassar 90245.
Location
Kota makassar,
Sulawesi selatan
INDONESIA
Salaga Journal
Published by Universitas Hasanuddin
ISSN : -     EISSN : 30322677     DOI : https://doi.org/10.70124/salaga
Core Subject : Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Control & Systems Engineering Electrical & Electronics Engineering Engineering
SALAGA journal is an academic journal for the publication of original articles and reviews in the field of appropriate technology for agriculture production and processing. The aim of this journal is to provide a forum for academia, researchers, and practitioners in discussing, reviewing, analyzing, and reporting research findings related to appropriate technologies in agriculture production and processing. Using tools, equipment, and practices that are well-matched to the regional contexts, resources, and farmer needs is referred to as using appropriate technology in agriculture. It seeks to be reasonably priced, long-lasting, and simple to maintain while enhancing production and livelihoods by taking into account environmental and social factors. Editor in Chief: Haerani ISSN (online): 3032-2677 Frequency: Biannual
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Volume 03, No. 2, December 2025" : 6 Documents clear
Qualitative Study of Two and Four-Wheel Tractor Use in Timor-Leste’s Five Districts De Jesus, Arcanjo; Iqbal, Iqbal; Azis, Abdul
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.v3i2.1840

Abstract

Agricultural mechanization is increasingly promoted to address labor constraints and improve the timeliness of field operations in rice-based farming systems. This study qualitatively examines the use of two-wheel and four-wheel tractors in five districts of Timor-Leste (Manufahi, Covalima, Bobonaro, Manatuto, and Ainaro) and identifies key barriers and strategic implications for strengthening mechanization. Field data were collected through observation, questionnaires, and farmer interviews, and were synthesized using a SWOT (Strengths–Weaknesses–Opportunities–Threats) approach. Results indicate that tractor utilization remains limited across all districts, with most farmers reporting no tractor use (72.5–85.0%). A system-level assessment of four-wheel tractor (TR4) adequacy shows a substantial demand–availability gap: 124 units are available against an estimated requirement of 293 units (≈42.3% fulfillment), implying a shortfall of 169 units and potential bottlenecks during peak land preparation periods. District-level efficiency indications vary, suggesting different levels of operational pressure and the need for targeted interventions. The SWOT synthesis highlights productivity and efficiency gains as key strengths, while financial limitations, uneven distribution, and limited maintenance/spare-part access remain major weaknesses. Recommendations include strengthening operator and farmer training, improving maintenance and spare-part services (service centers and mobile repair), and enhancing access mechanisms such as managed hire services and context-appropriate financing to support reliable and timely tractor utilization
Economical Used-Oil Stove for Post-Harvest Energy in Agriculture Mamangkai, Muhamad Khuldi; Sumual, Hendro Maxwell; Manongko, Jenly Dyliep Isria
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.v3i2.1851

Abstract

This study aims to develop and test the performance of energy-efficient stoves fueled by used oil as a renewable alternative energy solution for small-scale farmers. The stoves are designed to reduce dependence on subsidized Liquefied Petroleum Gas (LPG) while utilizing the increasing amount of oil waste in rural areas. The method used is Research and Development (R&D) with performance testing through the Water Boiling Test (WBT) and Fuel Consumption Rate (FCR) calculations. The main findings show that used oil stoves have an average thermal efficiency of 32.28%, meeting the SNI 7926:2013 standard (>30%), although slightly below the efficiency of LPG stoves (37.45%). These stoves are able to boil water 3-5 minutes faster than LPG stoves after reaching stable combustion conditions. From an economic perspective, the daily operating cost of used oil stoves is only Rp1,986, or 69.45% cheaper than LPG, and only consumes 4.9% of farmers' monthly income—far lower than LPG, which reaches 16%. With a production cost of IDR 363,000 per unit, this stove is not only affordable but also has the potential to reduce environmental impact through the utilization of waste oil. The research results indicate that used oil stoves are suitable for implementation as appropriate technology that supports energy security and the household economy of farmers.
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.
ESP32 IoT Auger‑Based Automatic Feeder for Fish Pellets Mukhtar, Aqid; Munir, Ahmad; Azis, Abdul
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.v3i2.2134

Abstract

Manual fish feeding in aquaponics often leads to inconsistent schedules and imprecise dosing, degrading water quality and system performance. This study designs and builds an ESP32‑based IoT automatic fish feeder using an auger dispensing mechanism controlled via the Blynk platform. The objectives are to develop a reliable feeder, calibrate dosing for different pellet sizes (1, 2, and 3 mm), and evaluate scheduling accuracy and dosing precision. The prototype consists of a 3 kg acrylic hopper (45° angle of repose), a cast‑iron auger, and an ESP32 control module with a servo and DC motor driven by an L298N driver. Calibration established linear models between servo rotation time and feed dose, and between motor PWM and throwing distance. Performance tests were conducted over three days with twice‑daily feeding. Results show strong linearity in calibration (dose–time R² > 0.997; PWM–distance R² > 0.92), perfect schedule adherence (zero delay at 08:00 and 15:00), and high dosing accuracy across pellet sizes, with average errors of 2.37% (1 mm), 3.04% (2 mm), and 2.94% (3 mm) (overall mean 2.78%). In conclusion, the system integrates mechanical reliability, electronic control, and IoT accessibility to deliver precise, scheduled, and remotely controllable feed management for aquaponics. The approach is practical and low‑cost, and it contributes to smart aquaculture by enhancing operational efficiency and reducing labor dependency.
Drought Level Analysis of Paddy Fields Using the NDDI Method Based on Sentinel-2A Imagery in South Polombangkeng District, Indonesia Rahmi, Nur; Mubarak, Husnul; Nur Faridah, Sitti; Sapsal, Muhammad Tahir
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.v3i2.2136

Abstract

Drought is a significant climate-related hazard that severely impacts agricultural productivity, particularly in rainfed paddy fields. This study aimed to analyze the spatial distribution and severity of drought in paddy fields using the Normalized Difference Drought Index (NDDI) derived from Sentinel-2A satellite imagery. The research was conducted in South Polombangkeng District, Takalar Regency, South Sulawesi, Indonesia, during the dry season in October 2023. The NDDI was calculated by integrating the Normalized Difference Vegetation Index (NDVI) and the Normalized Difference Water Index (NDWI). The results indicated that 85.78% of the paddy fields experienced severe drought, while mild and moderate drought covered 9.30% and 4.92%, respectively. NDVI analysis revealed that 87.81% of the area had very low to low vegetation density, and NDWI confirmed extreme moisture deficiency, with 99.88% of the area under very severe drought conditions. The accuracy of the NDDI drought map, validated using the Area Under the Curve (AUC), was 0.62, indicating acceptable model performance. These findings provide critical spatial information for drought mitigation and water management in vulnerable agricultural regions. The study demonstrates the utility of Sentinel-2A and NDDI for localized drought assessment and supports evidence-based decision-making for sustainable farming practices in drought-prone areas.
Effects of Blanching Pretreatment on the Quality Attributes of Freeze-Dried Red Dragon Fruit (Hylocereus costaricensis) Ramadhani, Nur Fitri; Ramadhani, Junaedi Muhidong; Mursalim, Mursalim; Waris, Abdul; Intan Permata Hati, Febriana
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.v3i2.2144

Abstract

Freeze drying is an effective method for preserving heat-sensitive fruits such as dragon fruit (Hylocereus costaricensis) by removing moisture through sublimation. This study aimed to evaluate the effect of blanching pretreatment on the quality attributes of freeze-dried dragon fruit, including moisture content, color, total soluble solids (TSS), and texture. A completely randomized design with two treatments (blanched at 90°C for 3 minutes and unblanched) and three replications was employed. Samples were cut into 1 mm and 3 mm thicknesses and freeze-dried at –50°C and 20 Pa for 24 hours. Results showed that blanching significantly reduced moisture content (final difference ≈1%), but also led to greater color degradation (lower L∗  and a∗  values, higher ΔE) and softer texture compared to unblanched samples. TSS values were lower in blanched samples. In conclusion, blanching enhances drying efficiency but compromises color, texture, and soluble solids retention in freeze-dried dragon fruit.

Page 1 of 1 | Total Record : 6

 1 

Filter by Year

2025 2025


Reset
Filter By Issues
All Issue Volume 03, No. 2, December 2025 Volume 03, No. 1, June 2025 Volume 02, No. 2, December 2024 Volume. 02, No 1, June 2024 Volume 01, No. 2, December 2023 Volume 01, No. 1, June 2023