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Journal : Jurnal Keteknikan Pertanian

TheSimulation of Numerical Method of Finite Difference for Predicting the Distribution of Volumetric Water and Water Potential Tamrin Latief; . Hermantoro; Budi Indra Setiawan
Jurnal Keteknikan Pertanian Vol. 14 No. 3 (2000): Buletin Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.014.3.%p

Abstract

This paper describes an application of n~rmerical method of finilsdzflerence for predicting the distribution of volumetric water (8) and water potential (v by using diffusity and conductivity approach. The result of current study showed that the parameters, volumetric water and water potential, correlated reversely. The trend of application of numerical method was similar to that of exact method. The simulation of parameters was not signiJcant. The reliability of models is still needed to test emperically.
Applicatin of Some Evapotranspiration Models at Tropical Region Slamet Suprayogi; Budi Indra Setiawan; Lilik Budi Prasetyo
Jurnal Keteknikan Pertanian Vol. 17 No. 2 (2003): Buletin Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.017.2.%p

Abstract

Potential evaporation (ETp) can be calculated by ETp models climatological parametrs. Among them, the Penman model is most frequently used for ETp estimation. The penman model requires five climatic parameters : temperature, relative humidity, wind, saturation vapor pressure, and net radiation. It also uses complicated unit conversions and lengthy calculation. There are a simple models such as : Jensen - Haise models, Hargreaves, Radiation, Turc's, and Makkink's model. These models that requires only two climatic parameters, temperature and incident radiation.
Konsep Ecohouse pada Rumah Baduy Dalam Meiske Widyarti; Budi Indra Setiawan; Hadi Susilo Arifin; Arief Sabdo Yuwono
Jurnal Keteknikan Pertanian Vol. 25 No. 2 (2011): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (871.222 KB) | DOI: 10.19028/jtep.025.2.%p

Abstract

Abstract Environment quality is worsening every year; building’s sector contributes 66 % of fossil fuels   pollution sources. Ways in building constructions needs to be changed in more environmental friendly manner. Today, in spite of new technological advances in techniques and materials, buildings are continuously being built but lack of climatic consideration. Indigenous people, such as the Inner Baduy community, from longstanding experience have developed systems as their local wisdoms adapting to its environment and buildings in a sustainable manner. The aim of this study is to emphasize the importance of traditional knowledge in terms of providing environmental friendly buildings and the existence of documentation as a knowledge base of an Indonesian traditional settlement in a hot humid climate’s mode. The study results are reconstructions on, building design will be presented in technical drawings and drawn with Sketch up computer program. Keywords: Baduy, design, ecohouse, local wisdom Abstrak Sektor bangunan menyumbang 66% dari sumber polusi bahan bakar fosil yang akan berdampak pada memburuknya kualitas lingkungan. Teknik konstruksi bangunan perlu diubah dengan cara yang lebih ramah lingkungan. Meskipun kemajuan dalam teknologi pembangunan berkembang pesat, dan  bangunan yang terus menerus dibangun  akan tetapi dalam penggunaan teknik dan material bangunan tidak mempertimbangkan kerusakan iklim yang ditimbulkan. Masyarakat adat, seperti masyarakat Baduy Dalam telah berpengalaman sejak lama dalam konservasi lingkungan yang dilaksanakan sebagai kearifan lokal mereka termasuk dalam pembangunan konstruksi rumah. Tujuan dari penelitian ini adalah 1) untuk mengevaluasi dan mendapatkan  pengetahuan dalam bangunan tradisional dan 2) Mendokumentasikan konsep bangunan tradisional Indonesia sebagai dasar dalam pembangunan pada  wilayah beriklim panas lembab. Hasil penelitian ini bangunan di Baduy Dalam merupakan bangunan yang berkelanjutan. Bangunan ini direkonstruksi dan disajikan dalam gambar teknik yang digambar dengan program komputer Sketchup 2008. Kata Kunci: Baduy Dalam, konstruksi eco-house, kearifan lokal Diterima: 21 April 2011; Disetujui: 16 Agustus 2011 
ERROR ANALYSIS ON THE ESTIMATION OF CUMULATIVE INFILTRATION SOIL USING GREEN AND AMPT MODEL Muhamad Askari; Satyanto Krido Saptomo; Budi Indra Setiawan
Jurnal Keteknikan Pertanian Vol. 20 No. 2 (2006): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.020.2.%p

Abstract

ABSTRACT Green and Ampt infiltration model is still useful for the infiltration process because of a clear physical basis of the model and of the existence of the model parameter values for a wide range of soil.  The objective of thise study was to analyze error on the esimation of cumulative infiltration in sooil using Green and Ampt model and to design laboratory experiment in measuring cumulative infiltration. Parameter of the model was determined based on soil physical properties from laboratory experiment. Newton –Raphson method was esed to estimate wetting front during calculation using visual Basic for Application (VBA) in MS Word. The result showed that Dq contributed the highest error in estimation of cumulative infiltration and was followed by K, H0, H1, and t respectively. It also showed that the calculated cumulative infiltration is always lower than both measured cumulative infiltration and volumetric soil water content. Keyword: Green and Ampt, cumulative infiltration, wetting front, VB Application.
PENGELOLAAN SUMBERDAYA HAYATI BAGI PEMENUHAN KEBUTUHAN PANGAN DAN GIZI Mustafril .; Budi Indra Setiawan; M. Yanuar J. Purwanto; Lilik B. Prasetyo; Drajat Martianto
Jurnal Keteknikan Pertanian Vol. 20 No. 2 (2006): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.020.2.%p

Abstract

Abstract Requirement of food and nutrients in a specified is a determined by the growth of population, avai1ability of agriculture, plantation, animl husbandry and fisheries resources. Sufficient food forconsumption can be calculated bused on sexes, ages and other human conditions. To fulfill food sufficency is also dependent upon non­-consumptive use of the resources such as for seed,feed, industry and export. Comsumption of both food and nutrients in Indonesia follows the Recommended Dietary Allowance (RDA) with the approach on the Desirable Dietary Pattern (DDP). Goals of and management based on its sustability are necessarily oriented to produce agricultural commodities to meet the requirement of nutrients and food in a balanced condition. Thus, It Is of Interest to optimize bio-resource management with respects to the fulfillment of food and nutrient sufficiency in a localized area. The use of linear programming may give possible by the people living there. This peper Introduces an approach on bio-resouce management with the main concern  is to produce diversified foods sustainably. Keyword.: food, nutrients, bio-resource management, linier programming
ALGORITMA FILTER KALMAN UNTUK MENGHALUSKAN DATA PENGUKURAN Rudiyanto .; Budi Indra Setiawan; Satyanto Krido Saptomo
Jurnal Keteknikan Pertanian Vol. 20 No. 3 (2006): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.020.3.%p

Abstract

ABSTRACT The objective of this paper is to apply a simple algorithm of Kalman Filter, wich is know as noise data filtering. The computer program was written in Macro Visual Basic in MS Exel. Testings were carried out on available temperature, Water level and force data and then were comared with the mooving average method. The result shows that the algorithm performed better and lesser deviation than the mooving average. Keyword: Kalman Filter, mesurement data, computer program Diterima: 30 Oktober 2006; Disetujui: 14 Nopember 2006
Sistem Kontrol Irigasi PID Wiranto .; Budi Indra Setiawan; Satyanto Krido Saptomo
Jurnal Keteknikan Pertanian Vol. 2 No. 2 (2014): Jurnal Keteknikan Pertanian
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.02.2.%p

Abstract

AbstractIrrigation application on agriculture is used to fulfill plant water requirement. In its application, irrigation water should be used optimally. However in the field, irrigation activities are generally wasteful practicesthat may impact on the increasing cost for water requirement. Under these conditions automatic irrigation system which could provide water with expected conditions for the plants, are needed, especially for largearea where the use of wireless automatic irrigation system is applicable. The advantages of the automatic system among others are the data could easily be downloaded and the devices could be easily installed. If it is installed properly, the system could facilitate the monitoring of irrigation in the region. In this study, PID model (Proportional, Integral and Derivative) is used for irrigation control systems and sensor connection with the logger (ATMega328 microcontroller). The objectives of this study is to improve irrigation efficiency by providing irrigation water required using control irrigation systems. The benefits of this approach is to provide an alternative method of automatic irrigation system for areas with limited water supply because this system is able to distribute the amount of irrigation water according to crop requirement.Keywords: automatic irrigation, control system, PIDAbstrakPemberian air irigasi pada lahan pertanian bertujuan untuk memenuhi kebutuhan air tanaman. Dalam pemanfaatannya, air irigasi harus digunakan secara optimum. Namun pada kenyataannya kegiatan irigasi memberikan dampak boros air sehingga berdampak pada meningkatnya kebutuhan ekonomi untuk memenuhi kebutuhan air tanaman. Dengan kondisi tersebut, perlu dibuat suatu sistem irigasi otomatis yang mampu menyediakan air untuk tanaman dengan kondisi yang diharapkan, untuk area yang luas menggunakan system irigasi otomatis nirkabel. Kelebihan dari sistem ini diantaranya data mudah didownload dan perangkat mudah diinstalasi sehingga dapat memudahkan dalam monitoring seluruh kawasan irigasi. Pada penelitian ini digunakan model PID (Proportional, Integral and Derivative) dalam sistem kendali irigasi dan koneksi sensor dengan logger (mikrokontroler ATMega328) menggunakan sistem nirkabel (wireless) dengan memanfaatkan perangkat Xbee/xbee Pro. Metode penelitian dengan menggunakan simulasi PID diaplikasikan pada prototipe irigasi tanah perlakuan. Tujuan dilakukannya penelitian ini adalah meningkatkan efisiensi dan mengetahui jumlah air irigasi yang diperlukan dengan sistem irigasi kontrol nirkabel (wireless). Manfaat dari penelitian ini sendiri adalah memberikan alternatife sistem irigasi otomatis untuk kawasan dengan ketersediaan air terbatas karena sistem ini mampu mengatur pemberiaan air irigasi sesuai dengan kebutuhan tanaman (efisiensi terhadap penggunaan air irigasi).Kata kunci: irigasi otomatis, PID, sistem kontrolDiterima: 02 April 2014 ;Disetujui :28 Juli 2014
Pengembangan Konsep Zero Runoff System (ZROS) untuk Optimalisasi Kadar Air Tanah pada Lahan Perkebunan Non Irigasi Yanuar Chandra Wirasembada; Budi Indra Setiawan; Satyanto Krido Saptomo
Jurnal Keteknikan Pertanian Vol. 2 No. 2 (2014): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.02.2.%p

Abstract

AbstractOn non-irrigated farming land, soil water content was difficult to be maintained in field capacity condition. Zero runoff system (ZROS) attempted to utilize runoff and to convert it to backup soil water content using permeation structures. The objectives of this research was to analyze the changing of soil water content before and after ZROS had been applied and to calculate ZROS effectivity towards infiltrating rainfall. In this research, permeation structures in the research field was usingsilt pit and collector canal. The changing of soil water content before and after ZROS application was calculated by water balance model in therooting zone. The simulation result showed that after ZROS had been applied, the decreasing of soil water content in research field were ranging from -0.001 to -0.009 m3/m3, while before ZROS had been appliedit were ranging from -0.01 to -0.024 m3/m3. Besides that, ZROS also capable to increase soil water content in research field for 25.57%. The increasing of this soil water content was caused by ZROS ability that canhold and infiltrate 51.04% from total rainfall occurredeffectively.Keywords: permeation structure, runoff, soil water content, water balance model, zero runoff systemAbstrakPada lahan non irigasi, kadar air tanah sulit dipertahankan pada kondisi kapasitas lapang dan sangat tergantung pada curah hujan. Zero runoff system (ZROS) berupaya memanfaatkan limpasan permukaan dan mengkonversinya menjadi cadangan air tanahdengan menggunakan bangunan resapan. Penelitian ini bertujuan menganalisis perubahan kadar air tanah sebelum dan sesudah penerapan ZROS serta menghitung efektifitas ZROS dalam meresapkan air hujan. Pada penelitian ini, bangunan resapan yang digunakan berupa rorak dan saluran pengumpul. Perubahan kadar air tanah yang terjadi sebelum dan sesudah diterapkan ZROS dihitung menggunakan model kesetimbangan air di dalam zona perakaran tanaman. Hasil simulasi menunjukkan bahwa setelah diterapkan ZROS, penurunan perubahan kadar air tanah berada pada kisaran -0.001 sampai -0.009 m3/m3 sedangkan sebelum ZROS sebesar -0.01 sampai -0.024 m3/m3. Selain itu, ZROS juga mampu meningkatkan kadar air tanah di lokasi penelitian sebesar 25.57%. Kenaikan kadar air tanah ini disebabkan oleh kemampuan ZROS yang secara efektif menampung dan meresapakan 51.04% dari curah hujan yang terjadi selama periode pengukuranKata Kunci : bangunan resapan, kadar air tanah, limpasan permukaan, model kesetimbangan air, zero runoff system.Diterima: 07 Mei 2014; Disetujui: 19 Agustus 2014
SISTEM RESIRKULASI AIR TERKENDALI PADA PEMBENIHAN IKAN PATIN (Pangasius hypophthalmus) Umi Hanifah; Budi Indra Setiawan
Jurnal Keteknikan Pertanian Vol. 21 No. 2 (2007): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.021.2.%p

Abstract

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
Kajian Sedimen Melayang pada Sub DAS Sei Kalembah (DAS Padang), Studi Kasus : Perkebunan Kelapa Sawit PTPN 4 Kebun Pabatu Edi Susanto; Budi Indra Setiawan; Yuli Suharnoto; Liyantono Liyantono
Jurnal Keteknikan Pertanian Vol. 5 No. 2 (2017): JURNAL KETEKNIKAN PERTANIAN
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1581.857 KB) | DOI: 10.19028/jtep.05.2.%p

Abstract

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.
Co-Authors - Nurfaijah - Reskiana - Rudiyanto - Wiranto Adlan Adlan Agus Sakawuna, Wandira Ahmad Fausan Ahmad Fausan Akfia Rizka Kumala Akfia Rizka Kumala, Akfia Rizka Aldi , Kukuh Allen Kurniawan Amalia Nurul Huda Amalia, Regina Anggara, Heru Anna Farida Ardiansyah -- -- Ari Sugiarto Arief Sabdo Yuwono Arief Sabdo Yuwono Armanto, Muhammad Edi Bagus Rahmansyah Priyoadi Bakri Bakri Bakri Bakri Budiman Minasny Budy Wiryawan Chusnul Arif Deka Trisnadi Munarso Drajat Martianto Edi Susanto Eka Sulaecha Elhamida Rezkia Amien Elokpere, Immanuel Nauk Enan Mulyana Adiwilaga Endang Gunawan Erfiana, Eka Erizal , Euis Kania Kurniawati Fachruddin Fachruddin Fachruddin, Fachruddin Fadli Irsyad Hadi Susilo Arifin Hanhan Ahmad Sofiyuddin Hanhan Ahmad Sofiyuddin Haris, Abdul Hermantoro . Hidayat Pawitan Hideki Furuya I Dewa Made Subrata Ihsani, Nanda Nashiha Immanuel Nauk Elokpere Joice Ester Manihuruk Joko Sumarsono Kamarudin Abdulah Kazutoshi Osawa Khusnita Azizah Kukuh Aldi Kunihiko Yoshino Leopold O. Nelwan Lilik B. Prasetyo LILIK BUDIPRASETYO Lismining Pujiyani Astuti Liyantono Liyantono . Lolly M. Martief Luthfi Riady M. Yanuar J. Purwanto Manihuruk, Joice Ester Marimin , Martianto D Martianto D Martianto D, Martianto D Masaru Mizoguchi Masaru Mizoguchi Matsuda, Hiroshi Meiske Widyarti Meiske Widyarti Moch Ridwan Widiansyah Momon Sodik Imanuddin Muh. Sakti Muhammadiah Muh. Taufik Muhamad Askari Muhamad Askari Muhammad Didik Nugraha Muhammad Edi Armanto Muhammad Ihsan Muhammad Ihsan Muhammad Nor Mahmudi Muhammad Nor Mahmudi Muhammad Yanuar J. Purwanto Mustafril . Mustafril Mustafril Mustafril Mustafril Mustafril Mustafril Mustafril, Mustafril Nana Mulyana Arifjaya Naresworo Nugroho Niken Tanjung Murti Pratiwi Nora H. Pandjaitan NP, Ratmini S Nur Aini Iswati Hasanah Nur Aini Iswati Hasanah Nur Aini Iswati Hasanah Nurfaijah Nurfaijah Nurwahid Dimas Saputro Oktari Ega P. Perdinan Popi Redjekiningrum Dwi Mustatiningsih Popi Rejekiningrum Pradha Wihandi Sinarmata Prasetyo LB Prasetyo LB, Prasetyo LB,, Prasetyo LB Prastowo Prastowo Prastowo, Prastowo Priyoadi, Bagus Rahmansyah Purwanto MYJ Purwanto MYJ Purwanto MYJ, Purwanto MYJ Rahmat Isnain Ramadan, Risky Ratmini S NP Riani Muharomah Riani Muharomah Riani Muharomah, Riani Risky Ramadan Roh Santoso B. Waspodo Roh Santoso Budi Waspodo Rosmina Zuchri, Rosmina Rudi Yanto Rudi Yanto, Rudi rudiyanto Rudiyanto . Rudiyanto Rudiyanto Rusianto Saputra, Septian Fauzi Dwi Satyanto Krido Saptomo Septian Fauzi Dwi Saputra Slamet Suprayogi Slamet Suprayogi Slamet Widodo Slamet Widodo Soewarso Soewarso Sri Wahjuni Suhardi . Sulaecha, Eka Suroso Suroso Suroso Suwardi Suwardi Syafriyandi, Debby Tamrin Tamura, Koremasa Tarissa Kristina Teuku Devan Assiddiqi Tri Julianto, Baskoro Umi Hanifah Vita Ayu Kusuma Dewi Widiansyah, Moch Ridwan Willy Bayuardi Suwarno Wiranto . Yanto Surdianto Yanuar Chandra Wirasembada Yanuar Chandra Wirasembada Yazid Ismi Intara Yudi Chadirin Yuli Suharnoto