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Liyantono
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Agriculture, Biological Sciences & Forestry

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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.
Co-Authors Budi Indra Setiawan Rizkah Afifah, Nabilah Saptomo, Satya Krido Satyanto Krido Saptomo Tri Julianto, Baskoro