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All Journal Jurnal Ilmu Pertanian Indonesia Buletin PSP Forum Pasca Sarjana Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Keteknikan Pertanian Jurnal Penelitian Pascapanen Pertanian Warta IHP (Warta Industri Hasil Pertanian) Indonesian Journal of Electrical Engineering and Computer Science Jurnal Tanah dan Iklim Jurnal Pusat Inovasi Masyarakat
I Wayan Astika
Departemen Teknik Mesin Dan Biosistem , IPB University
Agriculture, Biological Sciences & Forestry Computer Science & IT Education Industrial & Manufacturing Engineering Social Sciences Other

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Pengembangan Sistem Aquisis Data Kadar Nitrogen Tanah Berbasis Sensor Infra Merah Sebagai Pedoman Penentuan Dosis Pemupukan Abdul Roni Angkat; I Wayan Astika; Lenny Saulia
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 (814.777 KB) | DOI: 10.19028/jtep.025.2.%p

Abstract

Abstract Site specific nitrogen fertilizing  needs an accurate map of soil nitrogen content. The use of sensors operated upon the soil is a promising method since the accurate soil sampling methods are costly and time consuming. The objectives of this research are to determine the relation between soil nitrogen level and near infrared spectrum using artificial neural network (ANN) and to develop soil nitrogen content data acquisition system for static dan dynamic measurement. The results showed that the 1506 nm wavelength can be used to estimate the soil nitrogen content. Furthermore it was found that static measurement showed a better correlation (R2= 0.6286) than the dynamic measurement (R2=0.3111). Combined with the developed ATMega32 microcontroller based display recorder, the precision of N content measurement achieved 0.12% wb with 0.1% wb noise. Keywords : NIR, soil nitrogen level, data acquisition, artificial neural network, precision farming Abstrak Pemupukan unsur hara nitrogen spesifik lokasi membutuhkan sebuah peta nitrogen tanah yang akurat. Penggunaan sensor untuk pengujian tanah dapat dijadikan alternatif menggantikan metode konvensional yang membutuhkan waktu yang lama dan biaya yang mahal. Penelitian ini bertujuan untuk membangun hubungan antara komposisi kadar nitrogen tanah dengan spektra Near Infrared (NIR) menggunakan jaringan saraf tiruan (JST) dan membuat sistem akuisisi data kadar nitrogen tanah pada pengukuran statis dan dinamis. Hasil penelitian menunjukkan panjang gelombang spesifik yang dapat digunakan untuk menduga kadar nitrogen tanah adalah pada panjang gelombang 1506 nm. Hubungan antara kadar nitrogen dan tegangan reflektan pada pengukuran statis menunjukkan hubungan yang lebih baik dengan R2 sebesar 0.6286 dibandingkan pada pengukuarn dinamis dengan R2 sebesar 0.3111. Simulasi sistem akuisisi data  kadar nitrogen tanah menggunakan mikrokontroler ATMega 32 yang dilengkapi dengan display memberikan ketelitian sebesar 0.12% berat dengan noise sebesar ±0.1 % berat. Kata kunci: NIR, kadar nitrogen tanah, akuisisi data, Jaringan Saraf Tiruan, pertanian presisi.Diterima:28 Juni 2011 ; Disetujui: 26 September 2011
Pengembangan Model Pendugaan Kadar Hara Tanah Melalui Pengukuran Daya Hantar Listrik Tanah Hasbi Mubarok Suud; M. Faiz Syuaib; I Wayan Astika
Jurnal Keteknikan Pertanian Vol. 3 No. 2 (2015): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1460.707 KB) | DOI: 10.19028/jtep.03.2.%p

Abstract

The key of precision farming is the right decision in terms of time, quality, quantity, and specific location in the farming activities. Soil electrical conductivity (EC) is a variable that is both practical and efficient to implement precision farming. Several methods of EC measurement for precision farming have been developed and applied in precision farming, but inaccuracy on the interpretation of measurement result frequently encountered due to complexity of soil conditions and various geospatial condition. This paper presents a study on EC interpretation by focusing on interaction between moisture content, soil density, and soil N, P, K ratio which affect soil EC measurement. Soil samples of various levels of water, compaction, and N, P, K ratio are measured using a soil box resistivity. The levels of moisture contents were devided into low moisture content that have moisture content less then 20% and high moisture content that have moisture content more than 20%, while the levels of soil compaction were devided into high density condition and low density condition. Regression equations for N, P, and K ratio prediction have been generated and the coefficient of determination (R2) were obtained ranging between 0.6 and 0.89 for low moisture content and
Pengembangan Metode Akuisisi Data Kandungan Unsur Hara Makro Secara Spasial dengan Sensor EC dan GPS Dodik Ariyanto; I Wayan Astika; Radite P.A. S.
Jurnal Keteknikan Pertanian Vol. 4 No. 1 (2016): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1673.155 KB) | DOI: 10.19028/jtep.04.1.%p

Abstract

AbstractSpatial data of soil properties which are accurate and inexpensive is necessary to improve yields and to plan precision farming strategies. Currently the problem lies in the data that are not always updated, because the conventional soil testing is costly and relatively time consuming. This is due to the location of the soil testing laboratory which is far away from the location of the farm. So that the map information soilnutrient content is usually renewed in certain interval of time. In addition, available data are still global and not location specific. Electrical conductivity (EC) can be used as an indicator for measuring the condition of the soil in precision farming applications because of its fast and efficient. This study aims to develop an acquisition method of spatial macro nutrient content as reference for recommendation of fertilizer dossage. The study was conducted on 0.1 ha of land which was divided into 40 grid with a size of 5 x 5 m and planted with peanuts. There was an increase in the average EC 1.40 mS/m (period 1) and 1.36 mS/m (period 2) after tillage with a rotary plow. EC decreased after peanuts cultivation with an average of 4.27 mS/m (period 1) and 0.03 mS/m (period 2). Yields and EC values of each grid had a linear correlation with R2: 0.7005.AbstrakData spasial sifat-sifat tanah yang akurat dan murah sangat diperlukan untuk meningkatkan hasil panen dan merencanakan strategi pertanian presisi. Saat ini permasalahannya terletak pada data yang tidak selalu diperbarui, karena pengujian tanah secara konvensional membutuhkan biaya yang mahal dan waktu yang relatif lama. Hal ini disebabkan lokasi laboratorium pengujian tanah yang letaknya jauh dari lokasi pertanian, sehingga peta yang memberikan informasi kandungan unsur hara tanah biasanya diperbaharui dalam interval waktu tertentu. Selain itu data yang tersedia masih bersifat global dan tidak spesifik lokasi.Nilai konduktivitas listrik tanah (EC) dapat digunakan sebagai indikator untuk mengukur kondisi tanah dalam aplikasi pertanian presisi karena pengukurannya yang cepat dan efisien. Penelitian ini bertujuan untuk mengembangkan metode akuisisi data kandungan unsur hara makro secara spasial sebagai acuan rekomendasi dosis pemupukan. Penelitian ini dilakukan pada 0.1 ha lahan yang dibagi dalam 40 grid dengan ukuran 5 x 5 m dan ditanami kacang tanah. Terjadi peningkatan EC rata-rata 1.40 mS/m (periode1) dan 1.36 mS/m (periode 2) setelah pengolahan tanah dengan bajak rotari. EC mengalami penurunan setelah budidaya dengan rata-rata 4.27 mS/m (periode 1) dan 1.34 mS/m (periode 2). Hasil dan nilai-nilai EC setiap grid memiliki korelasi linear dengan R2: 0,7005.
Klasifikasi Inti Sawit Berdasarkan Analisis Tekstur dan Morfologi Menggunakan K-Nearest Neighborhood (KNN) Okta Danik Nugraheni; I Wayan Astika; I Dewa Made Subrata
Jurnal Keteknikan Pertanian Vol. 5 No. 2 (2017): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1820.798 KB) | DOI: 10.19028/jtep.05.2.%p

Abstract

AbstractAs the by product of palm oil, palm kernel contains high-quality oil. The manual inspection has low efficiency, subjective and inconsistent results due different perspectives between the buyer and the seller regarding the kernel quality. This research aims to determine the quality of palm kernel using the texture and morphological image analysis. Texture analysis performed on the kernel images separation to obtain the value of the mean, variance, skewness, kurtosis, entropy, energy, contrast, correlation, and homogeneity. Morphology analysis performed on the kernel images separation to obtain the value of the area, perimeter, metrics, and eccentricity. The classification was performed by KNearest Neighbor (KNN) method. Based on a simulation, the classification system could classify the palm kernel into the whole kernels, broken, and shells. The highest accuracy of 66.59 % was obtained by using a combination of mean and morphology when k was 1. AbstrakSebagai produk samping dari buah kelapa sawit, inti sawit mengandung minyak berkualitas tinggi. Penentuan mutu inti secara manual seringkali mengakibatkan terjadi konflik antar pembeli dan penjual. Proses penentuan mutu secara manual memiliki kekurangan pada rendahnya efisiensi, subjektif, dan tidak konsisten. Penelitian ini bertujuan untuk mempelajari kualitas inti sawit menggunakan analisis tekstur dan morfologi. Analisis tekstur dilakukan terhadap hasil pemisahan untuk mendapatkan nilai mean, variance, skewness, kurtosis, entrophy, energy, contrast, correlation, dan homogenity. Analisis morfologi dilakukan terhadap hasil pemisahan untuk mendapatkan nilai area, perimeter, metric, dan eccentricity. Dalam penelitian ini, metode klasifikasi yang digunakan adalah metode K-Nearest Neighbor (KNN). Berdasarkan simulasi, dapat disimpulkan bahwa sistem dapat diklasifikasikan menurut inti utuh, inti pecah, dan cangkang. Akurasi tertinggi 66.59% diperoleh dengan menggunakan kombinasi mean dan morfologi ketika k adalah 1.
Pemodelan Sorpsi Isotermi dan Pendugaan Umur Simpan Beras Pratanak pada Kemasan Plastik Film Hasniar .; Rokhani Hasbullah; I Wayan Astika
Jurnal Keteknikan Pertanian Vol. 7 No. 1 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (821.269 KB) | DOI: 10.19028/jtep.07.1.75-82

Abstract

AbstractMoisture sorption isotherms have an important role in the quantitative approach to predict shelf life of the food due to their sensitivity to moisture changes. The objectives of this research were to determine the equilibrium moisturecontent ofparboiled rice,to findthe bestmodel todescribe thesorption isotherm curve ofparboiled rice, and to predict shelf-life of the parboiled rice during storage. Moisture sorption isotherms of parboiled rice were determined using the standard gravimetric static methodat temperature of 30o, which involves the use saturated salt solution to maintain a fixed equilibrium relative humidity. To achieve different relative humidity environments, aqueous solutions of NaOH, MgCl2, Mg(NO3)2, KI, NaCl, KCl, Na2SO4, and NH4H2PO4 to have relative humidity of 7%, 33%, 52%, 69%, 75%, 84%, 87% dan 92%. Five gram samples of parboiled rice were stored in dessicators. The samples were weighed periodically until they constant. The Hasley, Oswin, Henderson, Chen-Clayton and Caurie models were applied to describe the relationship between equilibrium moisture content and relative humidity. The mean relative deviation was used to evaluate the goodness of each models. The result showed that equilibrium moisture content of parboiled rice fromrelative humidity of 7%, 33%,52%,69%, 75%, 84%, 87% dan 92% respective of 6.93% dry basis (db), 11.09%db, 14.22% db, 15.86% db, 17.05% db, 19.68% db, 23.92% db, dan 25.59% db. Water sorption isotherm parboiled rice had sigmoid shape. The Oswin model was found to be the best model to describe the experimental sorption data for parboiled rice was the value MRD is 3.85 and R2 is 0.98. Parboiled rice packaged with HDPE, LDPE, and PP have a predict shelf-life respective of 2.2, 2.3 and 8.8 year.AbstrakSorpsi isotermi memiliki peran penting dalam pendekatan kuantitatif untuk menduga umur simpan bahan yang rentan terhadap perubahan kelembaban. Tujuan dari penelitian ini adalah untuk menentukan kadar air kesetimbangan beras pratanak, menentukan model yang tepat dalam mendeskripsikan pola kurva sorpsi isotermi beras pratanak, dan memprediksikan umur simpan beras pratanak dengan metode kadar air kritis. Sorpsi isotermi beras pratanak ditentukan dengan menggunakan metode gravimetri statis pada suhu 30o, dengan menggunakan larutan garam jenuh untuk mengatur kelembapan relatif. Untuk mencapai lingkungan kelembaban relatif yang berbeda, larutan NaOH, MgCl2, Mg(NO3)2, KI, NaCl, KCl, Na2SO4, dan NH4H2PO4 dengan kelembaban relatif berturut turut7%,33%,52%,69%,75%,84%, 87%dan92%.Limagramsampel beraspratanakdisimpandalam desikator. Sampel ditimbang secara berkala hingga mencapai berat konstan.Model Hasley, Oswin, Henderson, Chen-Clayton dan Caurie diterapkan untuk menggambarkan hubungan antara kadar air kesetimbangan dan kelembaban relatif. Mean Relative Determination digunakan untuk mengevaluasi ketepatan masing-masing model. Hasil penelitian menunjukkan bahwa kadar air kesetimbangan beras pratanak pada RH 7%, 33%, 52%, 69%, 75%, 84%, 87% dan 92% berturut-turut adalah 6.93% bk, 11.09% bk, 14.22% bk, 15.86%bk, 17.05% bk, 19.68% bk, 23.92% bk, dan 25.59% bk. Kurva sorpsi isotermi beras pratanak memiliki bentuk sigmoid. Model Oswinadalah model yang paling tepat dalam menggambarkan sorpsi isotermi beras pratanak dengan nilai MRD sebesar 3.85 dan R2sebesar 0.98. Beras pratanak yang dikemas dengan HDPE, LDPE, dan PP memiliki umur simpan berturut 2.2 tahun, 2.3 tahun dan 8.8 tahun.
Analisis Sistem Budi Daya Tanaman Talas (Colocasia esculenta L.) di Kelurahan Bubulak, Bogor Barat, Jawa Barat Nur Habibah; I Wayan Astika
Jurnal Pusat Inovasi Masyarakat (PIM) Vol. 2 No. 5 (2020): Juli 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Pertanian Bogor

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Abstract

Taro plant (Colocasia esculenta L.) is a food crop in the form of tubers with a high carbohydrate content and is one of the alternative and functional food ingredients in Indonesia. The purpose of this study is to describe the types of taro cultivation systems in Bubulak Village, Bogor, West Java, and identify the factors that influence the taro cultivation system. The method used in this research is a descriptive method with a qualitative approach, which is knowing and getting a picture of the kinds of taro cultivation systems in Bubulak Village. This study uses indicators of the cultivation system which includes cropping patterns, cultivation management, cultivation production results, cultivation constraints, and the sustainability of the taro cultivation system in Bubulak Village. Based on the results of the analysis, there are two kinds of taro cultivation systems in Bubulak Village, namely monoculture and polyculture. Polyculture taro cultivation system with intercropping is considered more appropriate and effective because it can increase land productivity and create ecological stability by decreasing pest and disease attacks. Keywords: Cultivation management, cultivation system, monoculture, polyculture, taro
Upaya Meningkatkan Kemampuan Bermain Alat Musik Anak dengan Pembelajaran Berbasis Kreativitas Ananda Khairana Sukandar; I Wayan Astika
Jurnal Pusat Inovasi Masyarakat (PIM) Vol. 2 No. 5 (2020): Juli 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (579.559 KB)

Abstract

Learning is very important in education. Learning activities will determine the achievement of educational goals. Learning in Indonesia is currently based on the 2013 curriculum. However, its implementation is not in accordance with existing concepts. In the Indonesian education system, music learning is an additional learning. Despite being an additional learning, learning music turns out to be able to optimize development in children. The learning methods applied today, namely teacher-centered learning, are not suitable for music learning. Therefore, this study aims to offer learning that can help improve the ability to play music and optimize the goals of music learning. This study uses field observations and practices in data collection. The results of this study are creativity-based learning can explore the potential interests of children's talents, improve children's abilities in the field of music and the process of observation with stages of action can run effectively. Key words: ability, creativity, learning, musical instrument
Pengeringan Produk Tanaman Herbal di Kelurahan Bubulak Inti Putri Madinah; I Wayan Astika
Jurnal Pusat Inovasi Masyarakat (PIM) Vol. 2 No. 5 (2020): Juli 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Pertanian Bogor

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Abstract

Traditional medicine is the cultural heritage of the Indonesian people that needs to be preserved and developed to support health, one of which is herbal medicine using herbal plants. Community service activities at Bubulak Urban Village, West Bogor sub-district, Bogor City were found to be ready for consumption. One of them is the drying process so that the plants can last a long time and reach consumers. In RW 06, Bubulak, there is Mr. Ma'mun who processes herbs. The method used is interviews and observations so that concluded the processing of herbal plants is an indirect drying technique and can last up to three months. One of the supporting factors is packaging with plastic and storing it in a dry place. Keywords : community, drying, herbal plants, service
Analisis Usaha Mikro, Kecil, dan Menengah (UMKM) di Kampung Batuhulung, Bubulak, Bogor Karima Tazkia; Saidah Idah; I Wayan Astika
Jurnal Pusat Inovasi Masyarakat (PIM) Vol. 2 No. 6 (2020): November 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.102 KB)

Abstract

Bubulak Village is one of the villages in West Bogor District that located near the center of Bogor City. Easy access for transportation and it’s location that located near the city center are two factors that can be an opportunities for rural communities to empower rural economic through Micro, Small and Medium Enterprises (MSMEs). The purpose of writing this report is to identify problem and the alternative solution for the MSMEs located in Batuhulung Village, Bubulak Village, Bogor. The method that used to write the report was descriptive qualitative method and supported by primary and secondary data. The sample was determined through the Purposive Sampling method and the data was collected using interview and direct observations. There are two main problems that MSMEs Batuhulung Village face in order to develop themself. The first problem is capital and the second problem is the limited human resources.
Potensi Lahan Pekarangan dan Pengetahuan Warga Kelurahan Bubulak Terhadap Pola Pertanaman dan Jenis Tanaman Rifda Sajida; I Wayan Astika
Jurnal Pusat Inovasi Masyarakat (PIM) Vol. 2 No. 6 (2020): November 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Pertanian Bogor

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Abstract

Utilization of the yard as agricultural land is one alternative to meet family food needs. Homeyards can be used as living barns, food stalls, or even living pharmacies. In general, there are twoobjectives of this activity, namely to be able to know the potential use of house yards as a cropcultivation area in Bubulak Village and to analyze the level of knowledge of Bubulak Villageresidents on plant cultivation techniques by utilizing home yards. Residents’ knowledge aboutcultivation techniques in the yard was measured through interviews. The data used are secondarydata and primary data. Sampling method used in sampel selection is the accidental sampling method,while the analytical method used is the descriptive analysis method. The results of this activityindicate that the residents' houses in Bubulak Village have the potential to be used as land forcultivation. In addition, The residents have have sufficient knowledge of horizontal croppingpatterns and potting media as well as about TOGA plant. However, knowledge of verticulture andvegetable cultivation is still very low. Counseling or socialization is needed for residents of Bubulak RW 6 related to cultivation techniques in the use of the yard, especially related to verticulturetechniques for vegetable crops.
Co-Authors Abdul Adhim Abdul Roni Angkat Agus Buono Agus Pribadi Agus Supriatna Somantri Aisyah Nurrismiyandini Ananda Khairana Sukandar Aris Pramudia Aris Pramudia Azizah Nur Islam Al Rosyid Devi Tanggasari Dodik Ariyanto Edi Santosa Eleonora Runtunuwu Eleonora Runtunuwu Eleonora Runtunuwu Emmy Darmawati Eviyanti Choirunnisa Gybert E. Mamuaya Harry Imantho Hasbi Mubarok Suud Hasniar . Hayatri Sali Setia I Dewa Made Subrata Ika Feby Astuti Impron Inti Putri Madinah Irsal Las Irsal Las John Haluan Karima Tazkia Kikin Hamzah Muttaqin Kudang Boro Seminar Lenny Saulia M. Ardiyansah M. Arief Syafi’i M. Faiz Syuaib Mellania Chandra Dewi Mohamad Solahudin Muhamad Yulianto Muhammad Aushol Amri Nadia Dwi Kartika Nelwan, Leopold Oscar Okta Danik Nugraheni Oxa Aspera Endiviana Pandu Gunawan Radite P.A. S. Radite Praeko Agus Setiawan Rifda Sajida Rizqiyatul Amaliyah Roelly Ainul Yaqin Rokhani Hasbullah Saidah Idah Siswahyudianto Slamet Widodo Sugiarto Sugeng H. Wisudo Sumi Jayanti Supandi Hermawan T JUNE Tania June Taufiq Yuliawan Vonny Koesmaryono Y KOESMARYONO Yonny Koesmaryono Yudi Setiawan