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Portable Minapadi Model and Its Performance for Urban Farming Tri Julianto, Baskoro; Setiawan, Budi Indra; Saptomo, Satyanto Krido; Liyantono
Jurnal Keteknikan Pertanian Vol. 13 No. 2 (2025): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.013.2.195-210

Abstract

The conversion of agricultural land to non-agricultural uses has threatened the food supply of urban areas. While there are many unused open spaces in the areas that would have the potential to produce certain foods that are regularly consumed. It is then necessary to introduce cultivation techniques that match the area’s conditions and operable by the people with no, or less experience in farming. This study aims to come up with a portable Minapadi (paddy and fish) culture deemed suitable for urban farming and identify its performance to produce rice as well as fish. The model was tested for one season (99 days) with the main parameters observed being water balances, rice and fish production and revenue. Applying automatic irrigation without using electricity, the irrigation water consumption was 738 mm with an efficiency of 54%. Land and water productivity were 3.62 tons/ha and 0.96 kg/m³, respectively. The fish survival rate was 85% with total production of 3.34 kg and feed efficiency of 2.74. This model earned IDR7,054.94/m³ for rice and IDR36,989.82/m³ for fish with total revenue of IDR44,044.76/m³. These results confirmed that this minapadi model has potential application to support the development of urban agriculture.
Analisis Korelasi Antara Debit Aliran dan Sedimen Melayang (Suspended Load) DAS Ciliwung di Wilayah Jakarta Rizkah Afifah, Nabilah; Liyantono; Saptomo, Satya Krido
Jurnal Keteknikan Pertanian Vol. 13 No. 3 (2025): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.013.3.418-431

Abstract

DAS Ciliwung berasal dari kaki Gunung Pangrango di Jawa Barat, dengan wilayah hilirnya berada di Jakarta dan mencakup sekitar 6.295 hektare. Sungai ini mengalir melalui kawasan padat penduduk dan terpapar pencemaran domestik maupun industri. Sedimentasi berlebihan telah mengurangi kapasitas aliran, merusak infrastruktur, dan meningkatkan risiko banjir. Penelitian ini menganalisis korelasi antara debit aliran dan total padatan tersuspensi (TSS) di segmen hilir DAS. Sampel air diambil dari tiga titik pengamatan, menghasilkan 11 kali pengamatan dan 33 sampel pada Januari 2025. Debit aliran diukur menggunakan kurva debit, sedangkan TSS dianalisis di laboratorium. Nilai TSS berkisar antara 8,5 hingga 284,5 mg/L, sementara debit aliran bervariasi antara 2,55 hingga 45,47 m³/s. Analisis korelasi menghasilkan koefisien determinasi sebesar 0,9721 pada titik hulu, 0,9151 pada titik tengah, dan 0,0006 pada titik hilir. Korelasi positif yang kuat ditemukan pada segmen hulu dan tengah, sedangkan segmen hilir menunjukkan tidak adanya korelasi signifikan, kemungkinan akibat pengaruh hidrologis dan pasang surut. Hasil ini memberikan kontribusi pada pemahaman yang lebih mendalam tentang dinamika transportasi sedimen dan dapat menjadi dasar untuk perencanaan pengelolaan sedimen serta strategi pengerukan berkelanjutan pada sistem sungai perkotaan.
Crop Coefficients of Paddy and Evapotranspiration in the Minapadi Model System Applying Nonpowered Automatic Fertigation Tri Julianto, Baskoro; Setiawan, Budi Indra; Saptomo, Satyanto Krido; Liyantono; Kurniawati, Euis Kania
Jurnal Teknik Sipil dan Lingkungan Vol. 10 No. 2: October 2025
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.10.2.319-326

Abstract

In irrigation and agricultural planning, the crop coefficient value plays an important role in calculating water planning on land. This study aims to calculate the crop coefficient (Kc) of rice in a Nonpowered Automatic Fertigation (FONi) irrigation system combined with a minapadi system as a reference for irrigation planning. This study was conducted experimentally for 99 days in Dramaga, Bogor, using the FONi Minapadi system consisting of a fiberglass tank, a water supply tank, and an automatic float to maintain the water level. Actual evapotranspiration (ETa) data were calculated based on water balance, while potential evapotranspiration (ETo) was modeled using five methods: Penman-Monteith, Turc, Hargreaves, Makkink, and Blaney-Criddle. Model validation was performed using linear regression against the Penman-Monteith method as the standard reference. The results show that the total ETa during the observation period was 421.93 mm. Among the ETo calculation methods, the Turc model provided results closest to the Penman-Monteith method, with a coefficient of determination (R²) of 0.741 and the lowest sum of squares error (SSE) of 56.026. The calculated Kc values varied throughout the rice growth phase, with the highest value of 1.84 observed during the reproductive phase. The relatively high Kc value reflects significant water demand in the FONi Minapadi system, influenced by system characteristics and environmental conditions. This study concludes that the FONi Minapadi system has the potential to improve irrigation management efficiency in integrated agriculture. However, further research is needed to understand the influence of technical and environmental factors on the Kc value and to compare it with other irrigation systems.
Rancang Bangun Sistem Monitoring Kualitas Air dan Stasiun Cuaca Berbasis Sensor Industrial dengan Protokol Modbus RS485 Liyantono; Widodo, Slamet; Fatikhunnada, Alvin Fatikhunnada; Prakasa, Aras Teguh
Jurnal Keteknikan Pertanian Vol. 13 No. 1 (2025): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.013.1.98-114

Abstract

River water quality is typically monitored using sampling methods. This approach makes detecting water pollution challenging owing to the limited sampling time. Another factor influencing water quality is weather, which can be addressed by incorporating weather station sensors as corrective tools. The collected data were processed and visually displayed to make the important information easily interpretable. The water quality parameters measured in this study included Electrical Conductivity (EC), temperature, Total Dissolved Solids (TDS), salinity, pH, turbidity, Dissolved Oxygen (DO), and saturation. The weather parameters measured by the system included wind speed, wind direction, air temperature and humidity, atmospheric pressure, rainfall, and solar radiation. The system's capabilities include data transmission via cellular networks, data backup using an SD card, and industrial sensors with IP (Ingress Protection) standards that utilize the Modbus RS485 protocol. The study followed the Software Development Life Cycle (SDLC) or waterfall method to ensure system readiness and durability in real-world environments. The Modbus RS485 protocol allows multiple sensors to share a single cable line, resulting in a more efficient and less complex wire arrangement. These findings highlight the necessity of separating sensor lines based on parity type and baud rate for each sensor, enabling simultaneous readings in subsequent operations.