Articles
<![CDATA[Optimization of Parallel K-means for Java Paddy Mapping Using Time-series Satelite Imagery ]]>
<![CDATA[Alvin Fatikhunnada]]>;
<![CDATA[Kudang Boro Seminar]]>;
<![CDATA[Liyantono Liyantono]]>;
<![CDATA[Mohamad Solahudin]]>;
<![CDATA[Agus Buono]]>
<![CDATA[ TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 3: June 2018 ]]>
Publisher : <![CDATA[Universitas Ahmad Dahlan ]]>
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DOI: 10.12928/telkomnika.v16i3.6876
<![CDATA[Spatiotemporal analysis of MODIS Vegetation Index Imagery widely used for vegetation seasonal mapping both on forest and agricultural site. In order to provide a long-terms of vegetation characteristic maps, a wide time-series images analysis is needed which require high-performance computer and also consumes a lot of energy resources. Meanwhile, for agriculture monitoring purpose in Indonesia, that analysis has to be employed gradually and endlessly to provide the latest condition of paddy field vegetation information. This research is aimed to develop a method to produce the optimized solution in classifying vegetation of paddy fields that diverse both spatial and temporal characteristics. The time-series EVI data from MODIS have been filtered using wavelet transform to reduce noise that caused by cloud. Sequential K-means and Parallel K-means unsupervised classification method were used in both CPU and GPU to find the efficient and the robust result. The developed method has been tested and implemented using the sample case of paddy fields in Java Island. The best system which can accommodate of the extend-ability, affordability, redundancy, energy-saving, maintainability indicators are ARM-based processor (Raspberry Pi), with the highest speed up of 8 and the efficiency of 60%.]]>
<![CDATA[Rancang Bangun Piranti Lunak Sistem Konsultasi Pemilihan Teknologi Irigasi Bertekanan Berbasis Android ]]>
<![CDATA[Mohmad Solahudin]]>;
<![CDATA[Liyantono .]]>;
<![CDATA[Rizky Oktavianto]]>
<![CDATA[ Jurnal Keteknikan Pertanian Vol. 2 No. 2 (2014): Jurnal Keteknikan Pertanian ]]>
Publisher : <![CDATA[PERTETA ]]>
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DOI: 10.19028/jtep.02.2.%p
<![CDATA[AbstractSelection of appropriate irrigation system for cultivation process is to save water in agriculture by increasing the water use efficiency to avoid wastage in use of water for irrigation. Selection of irrigation system is based on the total water needs for irrigation, irrigation schedule, and the availability of irrigation system. This system developed to assist users in selecting the appropriate irrigation technology based on their crop and land conditions. This software is built on android-based operating system. This systemdeveloped using Waterfall models as approach model. The software input consist of details cultivation information plan furthermore that input used for analysis of total water needs for irrigation and hydraulics components requirement. This system displays the analysis results of irrigation water requirements and irrigation hydraulics components requirement successfully. This analysis results can be use by the user as a recomendation for selecting appropriate irrigation technologies.Keywords: software, irrigation technologies, androidAbstrakPemilihan teknologi irigasi yang tepat dalam proses budidaya tanaman merupakan salah satu cara untuk melakukan penghematan air dalam bidang pertanian dengan meningkatkan efisiensi penggunaan air. Pemilihan teknologi irigasi ini dilakukan berdasarkan pada kebutuhan air irigasi, jadwal pemberian air irigasi, serta ketersediaan teknologi irigasi di pasaran. Piranti lunak yang dikembangkan merupakan salahsatu media yang diharapkan dapat membantu pengguna dalam memilih jenis teknologi irigasi yang sesuai dengan komoditas dan kondisi lahan yang dimiliki. Piranti lunak ini dibangun pada perangkat berbasisandroid. Tahap pengembangan sistem dilakukan dengan menggunakan metode pendekatan Waterfall model. Dalam penggunaan piranti lunak, dibutuhkan input dari pengguna berupa detail budidaya yang untuk selanjutnya digunakan dalam analisis penentuan kebutuhan air irigasi dan kebutuhan hidrolika. Piranti lunak ini berhasil menampilkan hasil analisis kebutuhan air irigasi dan kebutuhan hidrolika irigasi untuk pemberian irigasi harian sesuai dengan hasil pengujian yang telah dilakukan. Hasil analisis ini dapat digunakan oleh pengguna sebagai pertimbangan untuk melakukan pemilihan teknologi irigasi yang sesuai.Kata kunci: piranti lunak, teknologi irigasi, androidDiterima: 19 Juni 2014 ;Disetujui: 22 September 2014]]>
<![CDATA[Impact of Land Use Change to Dependable Flow in Kuncir River, Nganjuk District, East Java ]]>
<![CDATA[Liyantono .]]>;
<![CDATA[Fajardo .]]>;
<![CDATA[Tasuku Kato]]>
<![CDATA[ Jurnal Keteknikan Pertanian Vol. 5 No. 1 (2017): JURNAL KETEKNIKAN PERTANIAN ]]>
Publisher : <![CDATA[PERTETA ]]>
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DOI: 10.19028/jtep.05.1.%p
<![CDATA[AbstractCurrently, Kuncir River is a source of irrigation water in the southern of Nganjuk District. The potential ofKuncir River was assessed by measuring the dependable flow as an indicator of water supply for irrigatedareas. The objective of this study was to estimate the river discharge and its dependable flow for irrigationfrom Kuncir River in Nganjuk District. River discharge data was collected from Kuncir River, rainfall data wascollected from Nganjuk District, East Java and climate data was collected from climatology station of BadanMeteorologi Klimatologi dan Geofisika (BMKG) Sawahan, Nganjuk. There were two major steps on thisstudy which were model development and model simulation using SWAT after calibration and validation.Model simulation showed NS value of 0.67 with mean daily flow of 7.15 m3 s-1. Based on land use changescenario, the conversion of 50% on forest and 50% on range-grasses into agriculture land could increase3.1% and 2.5% of average river discharge, respectively.AbstrakSungai Kuncir merupakan sumber air irigasi di bagian selatan Kabupaten Nganjuk. Potensi SungaiKuncir dapat dikaji melalui perhitungan debit andalan untuk dijadikan indikator jumlah pemenuhan air didaerah irigasi. Penelitian ini bertujuan menduga debit air sungai dan menghitung besar debit andalanuntuk irigasi pada Sungai Kuncir, Kabupaten Nganjuk. Data debit sungai dikumpulkan langsung di SungaiKuncir, data hujan dikumpulkan dari Dinas PU dan Pengairan Kabupaten Nganjuk, Jawa Timur, dan dataiklim dikumpulkan dari stasiun kimatologi Badan Meteorologi Klimatologi dan Geofisika (BMKG) Sawahan,Nganjuk. Penelitian dilakukan melalui dua tahap, yaitu proses pembangunan model dan proses simulasidengan SWAT setelah melalui proses kalibrasi dan validasi. Simulasi model memiliki nilai NS sebesar 0.67dan debit rata-rata harian sebesar 7.15 m3 s-1. Skenario perubahan lahan menggambarkan konversi 50%lahan hutan dan 50% semak belukar menjadi lahan pertanian berpotensi meningkatkan nilai debit rata-rataSungai Kuncir masing-masing sebesar 3.1% dan 2.5%.]]>
<![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[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[PEMANFAATAN FUSI DATA SATELIT LAPAN-A3/IPB DAN LANDSAT 8 UNTUK MONITORING LAHAN SAWAH ]]>
<![CDATA[Yudi Setiawan]]>;
<![CDATA[Lilik Budi Prasetyo]]>;
<![CDATA[Hidayat Pawitan]]>;
<![CDATA[Liyantono Liyantono]]>;
<![CDATA[Syartinilia Syartinilia]]>;
<![CDATA[Arif Kurnia Wijayanto]]>;
<![CDATA[Prita Ayu Permatasari]]>;
<![CDATA[A Hadi Syafrudin]]>;
<![CDATA[Patria Rachman Hakim]]>
<![CDATA[ Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 8 No. 1 (2018): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL) ]]>
Publisher : <![CDATA[Graduate School Bogor Agricultural University (SPs IPB) ]]>
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DOI: 10.29244/jpsl.8.1.67-76
<![CDATA[Increasing of economic development is generally followed by the change of landuse from agriculture to other function. If it occurs in large frequency and amount, it will threaten national food security. Therefore, it is necessary to monitor the agricultural land, especially paddy fields regarding to changes in landuse and global climate. Utilization and development of satellite technology is necessary to provide more accurate and independent database for agricultural land monitoring, especially paddy fields. This study aims to develop a utilization model for LAPAN-IPB satellite (LISAT) and other several satellites data that have been used for paddy field monitoring. This research is conducted through 2 stages: 1) Characterization LISAT satellite data to know spectral variation of paddy field, and 2) Development method of LISAT data fusion with other satellites for paddy field mapping. Based on the research results, the characteristics Red and NIR band in LISAT data imagery have a good correlation with Red and NIR band in LANDSAT 8 OLI data imagery, especially to detect paddy field in the vegetative phase, compared to other bands. Observation and measurement of spectral values using spectroradiometer need to be conducted periodically (starting from first planting season) to know the dynamics of the change related to the growth phase of paddy in paddy field. Pre-processing of image data needs to be conducted to obtain better LISAT data characterization results. Furthermore, it is necessary to develop appropriate algorithms or methods for geometric correction as well as atmospheric correction of LISAT data.]]>
<![CDATA[PENDEKATAN EKONOMI ERGONOMIKA UNTUK PERANCANGAN OPTIMAL TENAGA KERJA DAN MEKANISASI PADA PRODUKSI BERAS ORGANIK ]]>
<![CDATA[Muanah Muanah]]>;
<![CDATA[M Faiz Syuaib]]>;
<![CDATA[Liyantono Liyantono]]>
<![CDATA[ Jurnal Agrotek Ummat Vol 6, No 1 (2019): February ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Mataram ]]>
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DOI: 10.31764/agrotek.v6i1.828
<![CDATA[Faktor manusia sebagai tenaga kerja memiliki peranan penting dalam meningkatkan produktivitas beras Organik. Namun, sampai saat ini upah standar untuk pekerja pertanian belum ditentukan oleh lembaga pemerintah, sehingga bisa dikatakan bahwa peran pemerintah terhadap pekerja pertanian masih sangat kurang. Penelitian ini bertujuan untuk membuat formulasi berdasarkan analisis ekonomi ergonomika. Berdasarkan produktivitas kerja saat ini, pendekatan ekonomi ergonomika membuktikan bahwa upah yang diperoleh pekerja masih jauh dari standar UMR. Dari dua skenario optimasi yang digunakan, ditemukan bahwa perancangan penambahan mekanisasi secara selektif menggunakan mesin milik sendiri mampu memberikan upah yang optimal karena sudah memenuhi standar UMR Kabupaten Bogor.]]>
<![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[Demonstrasi Pengolahan Keripik Terong dan Boncabai sebagai Alternatif Ide Wirausaha Masa Pandemi di Kampung. Ciheulang, Desa Margaluyu, Kecamatan Kiarapedes, Purwakarta ]]>
<![CDATA[Nur Aulia Setiani]]>;
<![CDATA[Yuvicko Gerhaen Purwansya]]>;
<![CDATA[Anisya Elsa Shafira]]>;
<![CDATA[Ahmad Fauzan]]>;
<![CDATA[Liyantono Liyantono]]>
<![CDATA[ Jurnal Pusat Inovasi Masyarakat (PIM) Vol. 4 No. 1 (2022): April 2022 ]]>
Publisher : <![CDATA[Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Pertanian Bogor ]]>
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DOI: 10.29244/pim.4.1.102-115
<![CDATA[Desa Margaluyu merupakan salah satu desa yang dominansi perekonomiannya berasal dari pertanian. Hal ini dibuktikan dengan banyaknya lahan pertanian yang menghasilkan padi, cabai rawit, cabai merah, terong, dan kacang panjang. Hasil pertanian di Desa Margaluyu biasanya dijual langsung ke pasar atau untuk dikonsumsi pribadi. Permasalahan umumnya adalah pendapatan yang relatif rendah sehingga perlu upaya dalam meningkatkan pendapatan di desa, terutama saat harga komoditas sedang turun. Tujuan dari kegiatan ini adalah untuk sosialisasi pengolahan keripik terong dan boncabai sebagai alternatif ide wirausaha saat masa pandemi di Kampung Ciheulang, Desa Margaluyu, Kabupaten Purwakarta. Metode pelaksanaan dalam proses berbagi ilmu dan teknologi pengolahan hasil pertanian menjadi produk pangan olahan dilakukan dengan metode pendampingan, yaitu melakukan praktik pembuatan produk olahan keripik terong dan bon cabai secara langsung di lapangan. Kegiatan ini dilakukan dengan tetap menerapkan protokol kesehatan. Demonstrasi pengolahan terong dan cabai menjadi produk olahan keripik terong dan bon cabai berlangsung dengan baik dan mendapatkan respon yang baik dari ibu-ibu warga RT 002 Kampung Ciheulang. Hal tersebut dapat dilihat saat proses demonstrasi berlangsung ibu-ibu warga RT 002 sangat antusias untuk memperhatikan, membantu dan ikut serta dalam proses pembuatan produk olahan tersebut. Selain itu, pengolahan keripik terong dan bon cabai yang dilakukan dapat menjadi ide wirausaha. Keuntungan yang dapat diperoleh dari satu kali produksi keripik terong sebesar Rp 46.521 dengan rasio R/C diperoleh 1,87 sedangkan keuntungan yang dapat diperoleh dari satu kali produksi keripik terong sebesar Rp 35.163 dengan rasio R/C nya 1,90.]]>
<![CDATA[Parallel Processing Implementation on Weather Monitoring System for Agriculture ]]>
<![CDATA[Dwi Susanto]]>;
<![CDATA[Kudang Boro Seminar]]>;
<![CDATA[Heru Sukoco]]>;
<![CDATA[Liyantono Liyantono]]>
<![CDATA[ Indonesian Journal of Electrical Engineering and Computer Science Vol 6, No 3: June 2017 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/ijeecs.v6.i3.pp682-687
<![CDATA[Weather monitoring and forecasting are very important in agricultural sectors. There are several data need to be collected in real-time to support weather monitoring and forecasting systems, such as temperature, humidity, air pressure, wind speed, wind direction, and rainfall. The purpose of this research to develop a real-time weather monitoring system using a parallel computation approach and analyze the computational performance (i.e., speed up and efficiency) using the ARIMA model. The developed system wireless has been implemented on sensor networks (WSN) platform using Arduino and Raspberry Pi devices and web-based platform for weather visualization and monitoring. The experimental data used in our research work is a set of weather data acquired and collected from January until March 2017 in Bogor area. The result of this research is that the speed up of the using eight processors computation three times faster than using a single processor, with the efficiency of 50%.]]>
