Articles
<![CDATA[SISTEM RESIRKULASI AIR TERKENDALI PADA PEMBENIHAN IKAN PATIN (Pangasius hypophthalmus) ]]>
<![CDATA[Umi Hanifah]]>;
<![CDATA[Budi Indra Setiawan]]>
<![CDATA[ Jurnal Keteknikan Pertanian Vol. 21 No. 2 (2007): Jurnal Keteknikan Pertanian ]]>
Publisher : <![CDATA[PERTETA ]]>
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DOI: 10.19028/jtep.021.2.%p
<![CDATA[ABSTRACT This research was conducted to design a controlled fish hatchery system. This research dealt win 1) Designs of water recirculation and filtration system, 2) Water level control system, and 3) Tests of recirculation end filtration system for fish hatchery. Recirculation system was built in an insulated room with dimension of 6 x 4 x 3 m, used six aquariums, a sedimentation tank, a filtration unit, a water supply tank, a submersible pump and pipe with 1.25 cm in diameter. Multilayer horizontal filtration unit was used. The system consisted of mechanical filter layer, biological filter layer, and chemical filter layer. On-off controller was designed to control the pump. Pressure sensor model HTVN-100KP was used to detect the water level. The water level controller could control filtration process successfully. This water recirculation system was appropriated for practical uses. This system could decrease water use and saved energy considerably. Diterima: 16 Mei 2007, Disetujui: 18 Mei 2007]]>
<![CDATA[Kajian Sedimen Melayang pada Sub DAS Sei Kalembah (DAS Padang), Studi Kasus : Perkebunan Kelapa Sawit PTPN 4 Kebun Pabatu ]]>
<![CDATA[Edi Susanto]]>;
<![CDATA[Budi Indra Setiawan]]>;
<![CDATA[Yuli Suharnoto]]>;
<![CDATA[Liyantono Liyantono]]>
<![CDATA[ Jurnal Keteknikan Pertanian Vol. 5 No. 2 (2017): JURNAL KETEKNIKAN PERTANIAN ]]>
Publisher : <![CDATA[PERTETA ]]>
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DOI: 10.19028/jtep.05.2.%p
<![CDATA[AbstractThe purpose of this study was determined the amount of suspended sediment concentration dan sediment rating curve. Sediment rating curve are use to show the relationship between the discharge of the river and sediment discharge, a value sediment discharge can be used to predict the magnitude of the sedimentation process. Assesment of the suspended sediment have been made to overcome theproblems associated with the movement of contaminants, changes in water quality, to predict the lifetime of a dam on the river, and also to determine the rate of erosion due to changes in land use. Replanting at oil palm plantations, especially during land clearing that part of the land to be bare land. This condition causes the surface flow of replanted areas become rapidly concentrated into a ditch and into the river carrying sediment. The research results were obtained that the value of sediment discharge at the study site including the criteria for very high (greater than 20 tons/ha/yr) and already exceeds the limit sediment load criteria issued by the Ministry of Forestry. AbstrakTujuan penelitian ini adalah untuk mengetahui besarnya konsentrasi sedimen melayang (suspended sediment) dan kurva lengkung sedimen (sediment rating curve). Kurva lengkung sedimen merupakan kurva yang menunjukkan hubungan antara debit sungai dengan nilai debit sedimen sehingga dapat digunakanuntuk memprediksi besarnya proses sedimentasi. Kajian terhadap sedimen melayang (suspended sediment) telah dilakukan untuk mengatasi masalah yang berhubungan dengan proses pergerakan kontaminan (bahan penyebab polusi), perubahan kualitas air, memprediksi masa pakai dari sebuah bendungan disungai, dan juga untuk mengetahui laju erosi akibat perubahan tataguna lahan. Kegiatan peremajaan (replanting) pada perkebunan kelapa sawit, terutama pada saat pembersihan lahan (land clearing) maka sebagian lahan menjadi terbuka. Kondisi ini yang menyebabkan aliran permukaan dari areal peremajaanmenjadi cepat terkonsentrasi ke parit dan menuju sungai dengan membawa sedimen. Dari hasil penelitian yang dilakukan diperoleh bahwa nilai debit sedimen pada lokasi penelitian termasuk kriteria sangat tinggi (lebih besar dari 20 ton/ha/thn) dan sudah melebihi batas kriteria muatan sedimen yang dikeluarkan oleh Kementerian Kehutanan.]]>
<![CDATA[Pendugaan Emisi CO2 dari Lahan Gambut dengan Menggunakan Model Artificial Neural Network (ANN) ]]>
<![CDATA[Anna Farida]]>;
<![CDATA[Satyanto Krido Saptomo]]>;
<![CDATA[Yudi Chadirin]]>;
<![CDATA[Budi Indra Setiawan]]>;
<![CDATA[Kazutoshi Osawa]]>
<![CDATA[ Jurnal Keteknikan Pertanian Vol. 7 No. 2 (2019): JURNAL KETEKNIKAN PERTANIAN ]]>
Publisher : <![CDATA[PERTETA ]]>
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DOI: 10.19028/jtep.07.2.121-128
<![CDATA[Abstract Peatlands are the most efficient carbon sinks in large volumes. Peatland clearance makes CO2 emissions released into the air. a reference of Carbon emission had a great value compared with the results of carbon emissions measurement conducted by Indonesian researchers and academics. This study aims to Conduct a continuous estimation of CO2 emissions from peatlands over a long period of time, analyze the influence of the biophysical environment on CO2 emissions and obtain CO2 emissions based on measurements of biophysical environmental parameters using ANN model. The CO2 emissions measurements were performed by closed chamber method using Licor LI-8100 for 60 days. Biophysical environmental parameter measurements are also installed simultaneously. Biophysical environmental parameters measured include soil temperature, soil moisture and water table depth. The results showed that CO2 emissions reached 59.82 TonCO2 / ha / year with carbon emissions of 16.314 TonC / ha / year. Peatland CO2 emissions are influenced by environmental parameters of peat biophysics. Calculations using the ANN model obtained the highest correlation of R2 = 0.5545 which shows that the calculation of ANN model with measurement Emission has a high enough correlation and can be used as a reference to estimated peat CO2 peatland in Padang Island. Abstrak Lahan gambut merupakan penyimpan karbon yang paling efisien dalam jumlah besar. Pembukaan lahan gambut mengakibatkan emisi CO2 terlepas ke udara. Data emisi karbon yang menjadi rujukan memiliki nilai yang lebih besar daripada hasil pengukuran emisi karbon yang dilakukan oleh peneliti dan akademisi Indonesia. Penelitian ini bertujuan untuk Melakukan estimasi emisi CO2 dari lahan gambut secara kontinyu dalam periode waktu panjang, Menganalisis pengaruh lingkungan biofisik terhadap emisi CO2 dari lahan gambut dan Mendapatkan dugaan emisi CO2 dari lahan gambut berdasarkan hasil pengukuran parameter lingkungan biofisik dengan menggunakan model ANN. Pengukuran emisi karbon dilakukan dengan metode closed chamber menggunakan Licor LI-8100 selama 60 hari. Pengukuran parameter lingkungan biofisik juga diinstal secara bersamaan dengan pengukuran emisi CO2. Parameter lingkungan biofisik yang diukur meliputi temperatur tanah, kelembaban tanah, kedalaman water table. Hasil penelitian menunjukkan bahwa emisi CO2 lahan gambut mencapai 59.82 TonCO2/ha/tahun dengan emisi karbon adalah 16.314 TonC/ha/tahun . Emisi CO2 dipengaruhi oleh parameter lingkungan biofisik gambut yaitu suhu tanah, kelembaban tanah dan kedalaman water table. Perhitungan menggunakan model ANN diperoleh korelasi tertinggi sebesar R2 = 0.5545 yang menunjukkan bahwa hasil perhitungan model ANN dengan Emisi pengukuran memiliki korelasi yang cukup tinggi dan bisa dijadikan sebagai acuan dalam mengestimasi CO2 lahan gambut Pulau Padang.]]>
<![CDATA[Rancangan Sistem Kendali Kelembaban Tanah Berbasis Mikrokontroler Arduino ]]>
<![CDATA[Joko Sumarsono]]>;
<![CDATA[Budi Indra Setiawan]]>;
<![CDATA[I Dewa Made Subrata]]>;
<![CDATA[Roh Santoso Budi Waspodo]]>;
<![CDATA[Satyanto Krido Saptomo]]>;
<![CDATA[Popi Rejekiningrum]]>
<![CDATA[ Jurnal Keteknikan Pertanian Vol. 7 No. 1 (2019): JURNAL KETEKNIKAN PERTANIAN ]]>
Publisher : <![CDATA[PERTETA ]]>
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DOI: 10.19028/jtep.07.1.17-24
<![CDATA[AbstractControl of soil moisture can save water supply for crops. The soil moisture sensor integrated with the Arduino microcontroller board can be programmed as the control system. Addition of RTC module and SD module tools also make the system as the data logger. The purpose of this research was to developed the irrigation automation system with the control of soil moisture. This system has been integrated with the automation system using the power source of solar energy. Soil texture is sandy clay loam, which is dominated by the sand content of 59.67%. Rainfall during the study was 58.5 mm. The control system with Arduino board, set to keep soil moisture between 0.23 cm3cm-3 - 0.30 cm3cm-3. The soil moisture in that range was able to be controlled with this system. Land without agricultural cultivation activities when water resources are limited, can be empowered with the application of irrigation automation systems.AbstrakPengendalian kelembaban tanah dapat menghemat pasokan air untuk tanaman. Sensor kelembaban tanah yang diintegrasikan dengan papan mikrokontroler Arduino dapat diprogram sebagai sistem pengendalian tersebut. Penambahan alat RTC module dan SD module juga menjadikan sistem sebagai data logger. Tujuan dari penelitian ini adalah untuk mengembangkan sistem otomatisasi irigasi dengan kendali kelembaban tanah. Sistem ini terintegrasi dengan sistem otomatisasi menggunakan sumber tenaga dari energi surya. Tekstur tanah adalah lempung liat berpasir, yang didominasi oleh kandungan pasir sebesar 59.67%. Curah hujan selama penelitian adalah 58.5 mm. Sistem kontrol dengan papan Arduino, diatur untuk menjaga kelembaban tanah antara 0.23 cm3cm-3 – 0.30 cm3cm-3. Kelembaban tanah pada kisaran tersebut mampu dikontrol dengan sistem ini. Lahan tanpa kegiatan budidaya pertanian pada saat sumber daya air terbatas, dapat diberdayakan dengan aplikasi sistem otomatisasi irigasi.]]>
<![CDATA[Modeling Air Temperature Inside an Organic Vegetable Greenhouse ]]>
<![CDATA[Vita Ayu Kusuma Dewi]]>;
<![CDATA[Budi Indra Setiawan]]>;
<![CDATA[Budiman Minasny]]>;
<![CDATA[Liyantono Liyantono]]>;
<![CDATA[Roh Santoso Budi Waspodo]]>
<![CDATA[ AGRIVITA, Journal of Agricultural Science Vol 42, No 2 (2020) ]]>
Publisher : <![CDATA[Faculty of Agriculture University of Brawijaya in collaboration with PERAGI ]]>
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DOI: 10.17503/agrivita.v0i0.2526
<![CDATA[Air temperature is an important microclimate parameter in a greenhouse as it influences root growth and controls plant growth and development. Thus, the precise monitor and model temperature under greenhouse is needed to maintain the plants in optimal conditions. This research aims to model the temperature under a greenhouse using energy balance model. The study monitored the temperature inside and outside the greenhouse in a humid tropical environment. Based on the data, heat exchange constants of greenhouse components were derived, they were: 0.0029 (solar radiation), 0.8 (air) and 0.01 (heat exchange from greenhouse component). The calibrated model enables the calculation of temperature inside a greenhouse based on its outside air temperature, wind speed, and solar radiation. Testing the model against an independent time series showed the high accuracy of the model with an R2 value of 0.99, RMSE = 0.0085 and model efficiency Ef = 0.99. Based on the results, most advantageous strategies for air temperature control inside the greenhouse include the control of air ventilation.]]>
<![CDATA[Microclimate Condition in the Natural Ventilated Greenhouse ]]>
<![CDATA[Vita Ayu Kusuma Dewi]]>;
<![CDATA[Budi Indra Setiawan]]>;
<![CDATA[Roh Santoso Budi Waspodo]]>;
<![CDATA[Liyantono Liyantono]]>
<![CDATA[ Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 44, No 1 (2020) ]]>
Publisher : <![CDATA[Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian ]]>
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DOI: 10.21082/jti.v44n1.2020.31-36
<![CDATA[A Greenhouse has a different microclimate compared to the outside field. Climate parameters such as solar radiation and air temperature are important parameters that affect plant growth and productivity. This research aims to understand the relation of climate factors in the inside and outside Greenhouse, the effect of microclimate on evapotranspiration and to predict the amount og evapotranspiration inside the Greenhouse. Microclimate analysis was held in two stages, the firststage was from February 5 to March 21, 2018 and the second stage from March 19 to April 29, 2019 at the Department of Civil and Environmental Engineering, IPB University. Primary data was measured by the Decagon sensor. Solar radiation was collected using the Decagon PYR Pyranometer sensor and air temperature using the Decagon VP-4 sensor. Based on the result, the daily air temperature inside the Greenhouse was higher than that of the outside. The inside solar radiation was lower than that of outside the Greenhouse. The relative humidity fluctuated, and the air pressure was higher inside the Greenhouse. Evapotranspiration inside the Greenhouse was lower than outside and solar radiation was the most determining factor of evapotranspiration.]]>
<![CDATA[Optimalisasi Pemanfaatan Sumberdaya Hayati untuk Memenuhi Kebutuhan Pangan (Studi Kasus Kabupaten Aceh Selatan - NAD) ]]>
<![CDATA[Mustafril Mustafril]]>;
<![CDATA[Setiawan Budindra]]>;
<![CDATA[Purwanto MYJ Purwanto MYJ]]>;
<![CDATA[Prasetyo LB Prasetyo LB,]]>;
<![CDATA[Martianto D Martianto D]]>
<![CDATA[ JURNAL PANGAN Vol. 18 No. 4 (2009): PANGAN ]]>
Publisher : <![CDATA[Perum BULOG ]]>
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DOI: 10.33964/jp.v18i4.221
<![CDATA[Pemenuhan kebutuhan pangan dan gizi penduduk di suatu daerah ditentukan oleh ketersediaan, kecukupan serta konsumsi pangan suatu daerah yang selanjutnya dibandingkan dengan potensi sumberdaya hayati, sarana dan prasarana produksi yang tersedia di daerah tersebut. Produksi bahan pangan optimum dan luas lahan yang optimum untuk memenuhi kebutuhan pangan penduduk diprediksi dengan pendekatan optimasi kebutuhan (demand) dan produksi (supply) sumberdaya hayati untuk pangan dan gizi. Proyeksi kebutuhan dan ketersediaan bahan pangan suatu daerah dapat dioptimasi menggunakan perangkat lunak OptifoodPlus. Ketersediaan energi pangan Kabupaten Aceh Selatan sampai tahun 2020 diproyeksikan jauh melebihi dari proyeksi kebutuhan energi pangan. Proyeksi ketersediaan energi pangan dari kelompok bahan pangan serealia jauh melebihi proyeksi kebutuhan energi pangan dari serealia, sedangkan rata-rata ketersediaan energi pangan dari serealia masih berada di atas rata-rata konsumsi serealia perkapita nasional sejak tahun 2005. Demikian juga proyeksi ketersediaan produksi padi sawah jauh melebihi proyeksi produksi optimum padi sawah dari tahun 2001-2020. Ketersediaan lahan padi sawah berdasarkan luas baku lahan sawah Kabupaten Aceh Selatan seluas 17.713,50 ha dan berdasarkan kesesuaian lahan untuk tanaman pangan lahan basah mencapai luas 39.971,78 ha yang terdiri dari 1.350,15 ha (cukup sesuai) dan 38.621,63 ha (sesuai marjinal), ternyata jauh melebihi proyeksi kebutuhan lahan optimum (luas panen) untuk memproduksi padi sawah sampai tahun 2020 yang hanya 9.785,27 ha. Berdasarkan hasil optimasi ketersediaan pangan dan kebutuhan pangan, dapat disimpulkan bahwa Kabupaten Aceh Selatan mempunyai potensi ketahanan pangan dan berpotensi sebagai daerah mandiri pangan.]]>
<![CDATA[KONDISI HIPOKSIA DAN LAJU DEKOMPOSISI BAHAN ORGANIK DI LOKASI BUDIDAYA IKAN WADUK IR.H. DJUANDA ]]>
<![CDATA[Lismining Pujiyani Astuti]]>;
<![CDATA[Enan Mulyana Adiwilaga]]>;
<![CDATA[Budi Indra Setiawan]]>;
<![CDATA[Niken Tanjung Murti Pratiwi]]>
<![CDATA[ BAWAL Widya Riset Perikanan Tangkap Vol 6, No 3 (2014): (Desember 2014) ]]>
Publisher : <![CDATA[Pusat Riset Perikanan, BRSDM KP. ]]>
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DOI: 10.15578/bawal.6.3.2014.147-154
<![CDATA[Waduk Ir. H. Djuanda merupakan waduk multi fungsi yang salah satunya adalah untuk kegiatan budidaya ikan.Adanya input pakan dari kegiatan budidaya dapat menyebabkan peningkatan bahan organik dan penurunan konsentrasi oksigen terlarut. Kegiatan budidaya ikan dalam karamba jaring apung (KJA) menyumbang bahan organik ke perairan yang laju dekomposisinya (k) (per hari) dipengaruhi oleh suhu perairan. Tujuan penelitian ini untuk mengetahui kedalaman hipoksia di lokasi karamba jaring apung untuk budidaya ikan diWaduk Ir. H. Djuanda dan pengaruh suhu terhadap besarnya laju dekomposisi bahan organik (k). Penelitian kondisi hipoksia dilakukan diWaduk Ir. H Djuanda dan selanjutnya pengamatan BOD untuk penentuan laju dekomposisi bahan organik di Laboratorium Balai Penelitian Pemulihan dan Konservasi Sumberdaya Ikan pada bulan Februari–April 2013. Penentuan kondisi hipoksia berdasaran Peraturan Pemerintah Republik Indonesia Nomor 82 Tahun 2001 dan penentuan laju dekomposisi berdasarkan Least SquareMethod. Hasil penelitian menunjukkan bahwa kedalaman hipoksia dimulai pada kedalaman 3 m dan laju dekomposisi bahan organik (k) tertinggi pada suhu 28,5 °C yaitu sebesar 0,189/hari.Ir H. Djuanda Reservoir is a multi-purpose reservoirs, one of which is for fisheries culture activity. Feed inputs from aquaculture activities can lead to an increase in organic matter and a decrease in dissolved oxygen concentration. Cultivation of fish in floating cage net contributing organic material into waters which the rate of organic matter decomposition (k) (per day) is affected by water temperature. The purpose of this study was to know the depth of hypoxia in floating cage net for fisheries culture in the Ir. H. Djuanda Reservoir and the effect of temperature on the amount of organic matter decomposition rates (k). Observation of hypoxic conditions was conducted in Ir. H Djuanda Reservoir and furthermore observation of BOD to determine the rate of organic matter decomposition at Research Institute for Rehabilitation and Conservation of Fish Resources laboratory in February-April, 2013. Determination of hypoxic conditions based on Government Regulation of the Republic Indonesia Number 81 Year 2001 and the determination of the rate of decomposition based on Least Square Method. The results showed that the depth of hypoxia began at a depth of 3 m and the higher of decomposition rate of organic matter (k) was 0.189/day at temperature 28.5 ° C.]]>
<![CDATA[Peningkatan Resapan Air Tanah dengan Saluran Resapan dan Rorak untuk Meningkatkan Produktivitas Belimbing Manis (Studi Kasus di Kota Depok) ]]>
<![CDATA[Yanto Surdianto]]>;
<![CDATA[Budi Indra Setiawan]]>;
<![CDATA[Prastowo Prastowo]]>;
<![CDATA[Satyanto Krido Saptomo]]>
<![CDATA[ Jurnal Irigasi Vol 7, No 1 (2012): Jurnal Irigasi ]]>
Publisher : <![CDATA[Balai Teknik Irigasi ]]>
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DOI: 10.31028/ji.v7.i1.1-15
<![CDATA[Problem faced by star fruit farmers in Depok, West Java, is water availability relying only on rainfed. Therefore, research related to water conservation technique for optimum utilization of rain water and runoff at the starfruit orchard was conducted. The objectives of the research were: 1) The relationship between rainfall, evapotranspiration with starfruit productivity, 2) To find out the effects of soil water absoption on starfruit productivity , and 3) To develope water balance analytical model without runoff for sweet starfruit orchard. In this experiment the water table was approximately 16 m from soil surface, no irrigation was used and water storage canals equipped with silt pits were constructed so that runoff component and contribution of water capillarity movement were zero. The research results showed that: 1) The rainfall and evapotranspiration had influence on the starfruit productivity; 2) The relatively high rainfall followed by high soil water content at the rooting zone, ranging from 0,429 to 0,458 m3/m3, enabled the star fruit to have year-round production with four times harvesting; 3) The water balance analytical model without runoff could nicely simulate the soil water content at the rooting zone with R2 of 0,83.]]>
<![CDATA[Sistem Kontrol Tinggi Muka Air Untuk Budidaya Padi ]]>
<![CDATA[- Nurfaijah]]>;
<![CDATA[Budi Indra Setiawan]]>;
<![CDATA[Chusnul Arif]]>;
<![CDATA[Slamet Widodo]]>
<![CDATA[ Jurnal Irigasi Vol 10, No 2 (2015): Jurnal Irigasi ]]>
Publisher : <![CDATA[Balai Teknik Irigasi ]]>
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DOI: 10.31028/ji.v10.i2.97-110
<![CDATA[This research aims to design a control system to keep the water level and soil moisture at a level that is suitable to the plant requirment and determines the optimum water level and soil moisture in each growth phase of paddy field cultivation. The water level control system was formed based on on-off controls system using Arduino Uno ATMega328P microcontroller. When the sensor gives input that the water level is below the set points, then microcontroller will command the irrigation valve to open and the drainage valve to close. The volume and time of irrigation and drainage control are dependent to set point. Set point was controlled based on water regime treatment. Water regime consisted of three treatments, which are wet regime (RB), slightly wet regime (RAB), and dry regime (RK). The research result showed that control system was very effective and efficient in controlling the water regime according to the control algorithms. Besides, the research result showed that the water regimes affected the plant growth, land productivity, and water productivity. Treatment of wet regime (RAB) gave the highest number of tiller (138 tillers), yield 194.7 g/hill (equal to 21 ton/ha with assumption of 30 cm x 30 cm spacing) and water productivity 3.16 kg/m3.]]>
