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Jurnal Keteknikan Pertanian

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Published by Institut Pertanian Bogor

ISSN : 24070475 EISSN : 23388439 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Jurnal Keteknikan Pertanian dengan No. ISSN 2338-8439, pada awalnya bernama Buletin Keteknikan Pertanian, merupakan publikasi resmi Perhimpunan Teknik Pertanian Indonesia (PERTETA) bekerjasama dengan Departemen Teknik Mesin dan Biosistem (TMB) IPB yang terbit pertama kali pada tahun 1984, berkiprah dalam pengembangan ilmu keteknikan untuk pertanian tropika dan lingkungan hayati. Jurnal ini diterbitkan dua kali setahun. Penulis makalah tidak dibatasi pada anggota PERTETA tetapi terbuka bagi masyarakat umum. Lingkup makalah, antara lain: teknik sumberdaya lahan dan air, alat dan mesin budidaya, lingkungan dan bangunan, energi alternatif dan elektrifikasi, ergonomika dan elektronika, teknik pengolahan pangan dan hasil pertanian, manajemen dan sistem informasi. Makalah dikelompokkan dalam invited paper yang menyajikan isu aktual nasional dan internasional, review perkembangan penelitian, atau penerpan ilmu dan teknologi, technical paper hasil penelitian, penerapan, atau diseminasi, serta research methodology berkaitan pengembangan modul, metode, prosedur, program aplikasi, dan lain sebagainya.

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Articles 617 Documents

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Pendugaan Emisi CO2 dari Lahan Gambut dengan Menggunakan Model Artificial Neural Network (ANN) Anna Farida; Satyanto Krido Saptomo; Yudi Chadirin; Budi Indra Setiawan; Kazutoshi Osawa
Jurnal Keteknikan Pertanian Vol. 7 No. 2 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

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.

Pengembangan Prototipe Dan Pengujian Traktor Satu Roda Untuk Pemeliharaan Tanaman Padi Jusran Jusran; Radite Praeko Agus Setiawan; I Dewa Made Subrata
Jurnal Keteknikan Pertanian Vol. 7 No. 2 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Most of paddy fields in Indonesia are not consolidated, therefore, soil hardpan usually did not exist. With no soil hardpan, mobility of any machine for crop maintenance is very difficult even in some places is almost impossible.Until now crop maintenance such as weeding, spraying and spreading fertilizer was done manually by labor. Then mechanization is required to replace the labour which is not available or very expensive. Hence, this study conducted with objective to make a prototype II of a single wheel tractor for crop maintenance operated in deep mud field or in an unconsolidated paddy field. The study also did performance test of a single wheel tractor to measure the tractor speed, traction, sinkage, and slip of wheel when operated in rice plants field. The results of performance test showed that the speed average of wheel with straight lug and curved lug were 1.15km/hour and 0.97 km/hour. The average of sinkage and slip both of wheels with straight lug and curved lug respectively were 24.8 cm, 25.9 cm and 38.7 %, 26.12%. The results of performance test olso showed that the traction average of wheel with straight lug and curved lug respectively were 45.8 kg and 41.5 kg

Desain dan Uji Kinerja Alat pengering Hybrid Dengan Efek Cerobong Tipe Tumpukan untuk Pengeringan Biji Kopi Arabika Irwansyah Irwansyah; Leopold Oscar Nelwan; Dyah Wulandani
Jurnal Keteknikan Pertanian Vol. 7 No. 3 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Artificial drying method for arabica coffee beans requires a large consumption of electrical energy. Electricity is needed to rotate the blower which functions to circulate hot air to the dryer so that it can evaporate some of the water contained in the coffee beans. Most of the arabica coffee producing areas in Aceh province have not been reached by the electricity network so the use of artificial dryers cannot be used. To overcome this obstacle, the air flow circulation system with chimney effect can be used to drain dry air. The aim of this research is to design a chimney effect hybrid dryer which is heat source from solar and biomass energy, to test the performance of the dryer and compare it with the sun drying method. Parameters observed were temperature, moisture content and specific energy consumption of solar radiation and biomass. Dryer capacity is 5 kg of arabica coffee beans. The results showed that the chimney effect hybrid dryer can be used to dry 5 kg of coffee beans. The drying show that drying temperature on the dryer chamber ranged between 37.3-60.9°C. To reduce the moisture content of coffee beans from 52.5 to 12.8% bb, it was take 16-17 hours, while the sun drying method takes up to 46 hours (6 days). The total specific energy consumption of hybrid dryer was 57.1 MJ/kg of water vapor, while the specific energy consumption of the drying method was 59.4 MJ/kg of water vapor.

Desain dan Kinerja Mesin Ekstruder Twin Screw untuk Pembuatan Pakan Ikan Terapung Arif Rahman Hakim; Wahyu Tri Handoyo; Ahmat Fauzi; Widiarto Sarwono
Jurnal Keteknikan Pertanian Vol. 7 No. 2 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

AbstractProduction of floating fish feed independently by fish farmer group currently constrained with types of extruders available. Single screw extruders used fail to produce floating fish feed. It caused by the extrusion process is not optimal due to either temperature or improper screw speed. An alternative solution is using extruder twin screw with temperature and screw speed can be controlled. The objective of the study is developing and assessing of twin screw extruder performance in producing floating fish feed. Principle work of extruders is conveying and mixing feed stuff to the dies under high temperature and pressure. The main component of extruder consists of a motor drive, screw, barrel, heater, dies, and cutter. Evaluation of extruder performance involve temperature, screw speed, engine power, and quality of feed produced that are floatability and unit density. The result of design and assessment are obtained prototype of twin screw extruders which have capacity 10,93 kg/h, stability temperature and screw speed, the power requirement is 5,17 kW, specific mechanical energy 136,11 kj.kg-1. Produced fish feed have floatability 96% and unit density 0,620 (mg/mm3). Abstrak Pembuatan pakan ikan terapung secara mandiri oleh kelompok pembudidaya saat ini terkendala jenis ekstruder yang tersedia. Ekstruder single screw yang digunakan belum bisa menghasilkan pakan ikan terapung. Karena proses ekstrusi yang tidak optimal baik disebabkan suhu maupun putaran screw yang tidak tepat. Sebagai alternatif ialah dengan menggunakan ekstruder twin screw dengan suhu dan putaran yang bisa dikontrol. Tujuan penelitian ini adalah untuk mengembangkan dan menguji kinerja ekstruder twin screw dalam memproduksi pakan ikan terapung. Prinsip kerja dari ekstruder adalah mendorong dan mengaduk bahan pakan menuju dies dalam kondisi tekanan dan panas yang tinggi. Komponen utama ekstruder terdiri dari motor penggerak, twin screw, barrel, element pemanas, dies dan pemotong. Pengujian kinerja meliputi suhu, kecepatan screw, daya mesin serta kualitas pakan yang dihasilkan berupa daya apung dan unit density. Hasil desain dan pengujian diperoleh mesin ekstruder dengan kapasitas 10,93 kg/jam, suhu dan putaran screw stabil saat dioperasikan, kebutuhan daya sebesar 5,17 kW, specific mechanical energy 136,11 kj.kg-1. Pakan ikan yang dihasilkan memiliki daya apung 96 % dan unit density 0,620 (mg/mm3).

Rancangan Kemasan dengan Indikator Warna untuk Deteksi Tingkat Kematangan Buah Alpukat Meika Wahyuni Azrita; Usman Ahmad; Emmy Darmawati
Jurnal Keteknikan Pertanian Vol. 7 No. 2 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

AbstractDetermining the ripeness levels of avocados is still having difficulties because the fruit does not change color when ripe. Smart labels based on color indicators of ammonium molybdate with potassium permanganate can be used to detect the maturity of avocados by detecting ethylene gas (C2H4) produced during the ripening process. This study aims to examine the physiological and physicochemical changes that occur in avocados during the ripening process, design packaging of color indicator labels to determine the level of maturity of avocados and changes in color indicators to the maturity level of avocados. Parameters measured were respiration rate and ethylene production, hardness, total dissolved solids and color change. The data obtained were tested using ANOVA and Duncan's further test to obtain the best treatment. The best performance was obtained from label composed by 2 grams ammonium molibdat and 3 grams potassium permanganate because it has a good and even color gradation response to different level of ripeness by detecting the presence of ethylene in packaging.AbstrakPenentuan kematangan buah alpukat masih mengalami kesulitan karena buah tidak mengalami perubahan warna saat matang. Label cerdas berbasis indikator warna amonium molibdat dengan kalium permanganat dapat digunakan untuk mendeteksi kematangan buah alpukat dengan mendeteksi gas etilen (C2H4) yang dihasilkan selama proses pematangan. Penelitian ini bertujuan untuk mengkaji perubahan fisiologi dan fisiko kimia yang terjadi pada buah alpukat selama proses pematangan, perancangan kemasan label indikator warna untuk mengetahui tingkat kematangan buah alpukat dan perubahan indikator warna terhadap tingkat kematangan buah alpukat. Parameter yang diukur adalah laju respirasi dan pembentukan etilen, kekerasan, total padatan terlarut dan uji warna. Data yang diperoleh diuji dengan ANOVA dan dilakukan uji lanjut Duncan untuk mendapatkan perlakuan terbaik. Kinerja terbaik diperoleh dari label yang disusun oleh 2 gram amonium molibdat dan 3 gram kalium permanganat karena memiliki respons gradasi warna yang baik dan merata terhadap tingkat kematangan yang berbeda dengan mendeteksi keberadaan etilen dalam kemasan.

Energi Terbarukan dari Jerami Padi : Review Potensi dan Tantangan Bagi Indonesia Agus Haryanto; Siti Suharyatun; Winda Rahmawati; Sugeng Triyono
Jurnal Keteknikan Pertanian Vol. 7 No. 2 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Straw is a waste produced from the threshing and harvesting of rice. So far, rice straw has only been removed. In fact, it can be used as a potential energy source. This paper aims to examine the potential of rice straw as a renewable energy source in Indonesia. Opportunities and challenges were evaluated based on extensive and in-depth literature review. The paper discussed rice straw potential, its characteristics and benefits of using straw energy. Technology to convert rice straw into energy was also discussed. Results showed that renewable energy potential of rice straw is 28.8 TJ/year. Conversion technologies that can be applied include densification, combustion, gasification, and biogas. The biggest challenge for using rice straw energy is collection and transportation. Densification may overcome density problem by producing high quality pellets or briquettes that reduce transportation and storage costs. Straw characteristics need to be improved to increase its combustion properties.

Penggunaan Tank Model Untuk Mempelajari Tindakan Konservasi Air dan Hubungannya Dengan Debit Sungai di Sub Das Ciliwung Hulu-Ciliwung Haris Sofyan Hendriyanto; Moh. Yanuar Jarwadi Purwanto; Yudi Setiawan
Jurnal Keteknikan Pertanian Vol. 7 No. 1 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Abstract The damage of upstream watershed area caused by development and changes in land use. If it left unchecked can lead to unsustain of river discharge. As with sub watershed Ciliwung Hulu are in the critical category because it has maximum minimum ratio of discharge as a coefficient of river regime (CRR) reach to 132.72. This study adopt Tank model to estimateriver discharge daily. The validation using rainfall,R2 evapotranspiration and discharge data in 2014 showed R2 values is 0.822 and validation results showed value is 0.833. Simulation of the tank model shown CRR value sub watersheds Ciliwung Hulu as 135.72. Some conservation scenarios applied to the model parameter got the CRR of 87.77. Conservation was done by the addition of 10% of settlement area as green open space to the forest and as recharging wells in settlement area. This CRR value is lower than 120 indicate discharge fluctuation of watershed is properly.AbstrakKerusakan wilayah DAS Hulu diakibatkan oleh adanya pembangunan di sekitar wilayah DAS dan terjadinya perubahan fungsi lahan. Jika tidak terkendali dapat mengakibatkan regim sungai melebihi batas kritis DAS. Seperti halnya Sub DAS Ciliwung Hulu yang merupakan wilayah penelitian ini, berada pada kategori buruk karena memiliki koefisien regim sungai (KRS) sebesar 132.72. Oleh karena itu, diperlukan upaya konservasi untuk meminimalisir kerusakan hidrologi di wilayah ini. Sebagai upaya memperbaiki DAS tersebut, digunakan Tank Model, untuk menggambarkan mencari parameter hidrologi yang dapat diintervensi pada modelnya. Hasil kalibrasi Tank Model menggunakan data tahun 2009 diperoleh nilai R2 sebesar 0.822 dan hasil validasi menunjukkan nilai R2 sebesar 0.833. Hasil simulasi tank model menunjukkan nilai KRS Sub DAS Ciliwung Hulu sebesar 135.72. SImulasi model dengan scenario tindakan konservasi air yang dilakukan berupa penambahan areal hutan sebesar 10% dari wilayah pemukiman dan pembuatan sumur resapan di wilayah pemukiman menunjukkan adanya penurunan nilia KRS hingga menjadi 87.77. Nilai ini menunjukkan bahwa kondisi hidrologi wilayah penelitian berada pada kategori sedang (<120).

Optimasi Sumberdaya Air dengan Program Linear (Linear Programming) di DAS Cicatih, Kabupaten Sukabumi, Jawa Barat Roh Santoso Budi Waspodo; Siti Komariah; Vita Ayu Kusuma Dewi
Jurnal Keteknikan Pertanian Vol. 7 No. 3 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

The used of water in Indonesia for various using disposed exceed water supply. One of the efforts to optimize limited water resources is optimimation watershed management with linear programming. Identification of surface water potential in Cicatih watershed, especially in sub-watershed of upper Cicatih, Cibojong river, estimate using GR4J model. This research using discharge data from PLTA Ubrug. Springwater identified based on data from DISTAMBEN. The observation discharge average in Cibojong river was 246 l/s/day and based on GR4J model was 2752 l/s/day. Avaiable discharge was 56241 l/s/day. Grow of the population estimated by exponent method, industry and irrigation area with regression linear. Software Lingo 8.0 was used to help optimize of wáter resources in Cicatih watershed. Based on the result, in 2025, 12 industries and 15784 ha area get the wáter allocation from surface water. About 1083817 people and 75402 ha area get from springwáter. The cost to access surface wáter is higher than in other sectors. It causes the industry to gets an allocation from surface wáter.

Identifikasi Ganoderma Pada Tanaman Kelapa Sawit Berbasis Reflektansi Gelombang Multispektral Mohamad Solahudin Asyari; Fenry Winna Mutawally
Jurnal Keteknikan Pertanian Vol. 7 No. 3 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Basal Stem Rot (BSR) is a fatal disease caused by the fungus Ganoderma boninense. Currently in Indonesia the identification of oil palm plants suffering from BSR is done by directly observing oil palm plants one by one and pressing the palm tree trunks. However the direct checking method is felt to be less effective and efficient, its need another better method for detecting BSR. This study aims to evaluate the Ganoderma attack by using a multispectral camera, applying a neural network method to analyze NDVI images, and analyzing the effect of altitude on the accuracy of multispectral camera performance. In this study, spectral data of oil palm plants were taken through the air at an altitude of 50 m, 60 m, and 70 m with a multispectral camera mounted on a UAV, then the spectral data were analyzed using artificial neural networks to identify oil palm plants that were attacked by Ganoderma and healthy plants. The results of this study conclude that multispectral cameras can identify oil palm plants that have been attacked by Ganoderma at an altitude of 50 m and 60 m with utilization of artificial neural networks.

Kajian Pengeringan Bak Gabah Secara Intermittent Terhadap Mutu Beras Achmad Fitrah Maulidin; Leopold Oscar Nelwan; Rokhani Hasbullah
Jurnal Keteknikan Pertanian Vol. 7 No. 3 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Grain drying with bed dryer is generally effective with high temperatures, but this can increase fissured rice percentage. This can be overcome by combining drying method with tempering. These study were aim to examine drying temperature and duration on bed dryer using intermittent high temperature dryer, and its effect on quality variety of Ciherang with 20-22% moisture content. These research method consists of drying treatment without tempering using 35°C, 60°C and 80°C temperatures to 14% moisture content. Drying treatment with tempering consists of initial drying process-initial tempering-second drying- second tempering or without tempering, where the first drying temperature were 80°C for 20 minutes, 60°C for 30 minutes and second drying temperature were 60 °C and 35°C to 14% moisture content. The tempering duration used was 90 minutes. Results showed the grain drying method without tempering 35°C gave the highest percentage of head rice. However, the use of tempering had significantly reduced cracking and increased head rice percentage compared without tempering at the same temperature. Initial drying of 60°C for 30 minutes-tempering for 90 minutes-drying both temperatures of 35°C to 14% moisture content had been able to produce high head rice and low fissured rice percentage respectively 81.41% and 10%.

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Rokhani Hasbullah

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