I Putu Gede Budisanjaya
Prodi Teknik Pertanian, Universitas Udayana
Articles
10
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KURSUS SINGKAT DAN PELATIHAN PEMANFAATAN PEPAYA (CARISA PAPAYA L.) MENJADI MANISAN KERING BUAH PEPAYA DI DESA TIMUHUN, KECAMATAN BANJARANGKAN, KABUPATEN KLUNGKUNG

Jurnal Udayana Mengabdi Volume 7 No.1 – April 2008
Publisher : Jurnal Udayana Mengabdi

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Abstract

ABSTRACT In Desa Timuhun, eventhough papaya is not primary fruit product, but usually papaya is planted among the other plants and easily to grow. Papaya has good potency to be processed to become food product. Matured papaya fruit is usually fresh served for desk fruit. On the other hand, for papaya which is not mature yet, usually used for vegetable. Papaya has high water content, so it makes papaya fruit easy to experience damage. With papaya processing, papaya which is originally assumed improper to be sold or to be consumed (mechanical damage, diseased, acid, physical damage) and will only to be thrown, finally can be used. The making of papaya dry candy is one of effort to preserve and to vary form of papaya serving. It also improves the economic value of papaya. The making of papaya can be conducted in big or small scale. The activity objectives are to introduce and give additional knowledge to society about papaya processing technology, to increase economic added value of papaya and the using of papaya which is improper to be sold or to be consumed becoming valuable food product .Realization of the objectives above are by performing an information sharing and discussion with the society about process of the making dry candy from papaya, training of papaya dry candy making, introduce simple technology of dry candy papaya making. This activity was performed at the head of Desa Timuhun office, on Friday, September 14, 2007 and was attended by 26 persons, including association of woman farmer and the staff in that office. The result of this activity shows that there was positive response of people who attend this activity, because by processing papaya fruit into dry candy, have a lot of advantage compare to sale it freshly. Beside that, this dry candy is healthy snack, without synthetic preservation, enriched with vitamins which is useful for health, also this dry candy is still good up to 1 month and of course it could to improve economic value compared to be sold freshly

Perangkat Lunak Pengolahan Citra Untuk Segmentasi dan Cropping Daun Sawi Hijau

PROSIDING CSGTEIS 2013 CSGTEIS 2013
Publisher : PROSIDING CSGTEIS 2013

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Abstrak—Tanaman sawi merupakan komoditas yang memilikinilai komersial dan digemari masyarakat Indonesia, selainmemiliki masa panen yang singkat, tanaman ini dapatdibudidayakan secara hidroponik maupun nonhidroponik.Seiring perkembangan teknologi dalam bidangpertanian khususnya greenhouse, membuat sistem monitoring,analisis nutrisi tanaman dan fertigasi dapat dilakukan dengansistem terintegrasi komputer. Sistem ini memberikankemudahan dan meminimalkan kesalahan atau error karenadipengaruhi oleh subyektivitas dan tingkat kelelahan visualmanusia. Sistem terintegrasi komputer yang dapat digunakanuntuk monitoring dan analisis nutrisi tanaman sawi dalamgreenhouse adalah machine vision. Dalam aplikasi machinevision pertanian, tahapan segmentasi citra merupakan halpenting sebelum citra dapat diproses lebih lanjut. Untukmemisahkan tanaman dari background seperti tanah danresidu. Hasil segmentasi citra dapat diproses lebih lanjut untukekstraksi fitur baik ekstraksi fitur warna, tekstur maupunbentuk, hasil dari ekstraksi fitur-fitur tersebut nantinya dapatdigunakan untuk identifikasi nutrisi tanaman atau klasifikasitanaman.Penelitian inimenggunakan metode pengembangankelebihan hijau (excesss green), thresholding Otsu, morphologiOpening, labeling RLE, bounding box dan transformasigeometri, sehingga menghasilkan perangkat lunak segmentasicitra yang mampu memisahkan daun tanaman sawi dari latarbelakang (background) dengan akurasi 99,16%.Kata Kunci— Segmentasi citra,daun tanamansawi, excess green, bounding box.

ALGORITMA IMAGE PROCESSING PENDUGAAN LUASAN SERANGAN PENYAKIT TUNGRO PADA PADI MELALUI PENDEKATAN FOTO UDARA

Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 6 No 2 (2018): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

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Abstract

Tungro merupakan salah satu penyebab kegagalan panen. Pendugaan luasan serangan sangat penting dilakukan untuk mengetahui besarnya serangan yang terjadi dan pendugaan hasil yang akan didapat. Foto udara merupakan salah satu teknologi yang dapat dikembangkan untuk menduga luasan serangan penyakit tungro. Tujuan dari penelitian ini adalah mengembangkan algoritma pendugaan luasan serangan penyakit tungro pada padi melalui pendekatan foto udara. Pengembangan algoritma pendugaan luas serangan menggunakan bantuan software Adobe Photoshop CS 6 dan Matlab R2013a. Penelitian ini terdiri dari beberapa tahapan, yaitu akuisisi citra, preprocessing, thresholding, operasi morfologi citra, perhitungan pixel, perhitungan luas serangan. Algoritma pendugaan luas serangan adalah akuisisi citra, normalisasi warna, mosaicking, resize, perhitungan skala, perhitungan pixel lahan, perhitungan pixel serangan dan perhitungan persentase serangan. Perhitungan pixel lahan menggunakan proses thresholding  dan penjumlahan pixel. Perhitungan pixel serangan menggunakan thresholding otsu, operasi morfologi citra dan penjumlahan pixel. Perhitungan persentase serangan menggunakan perbandingan pixel serangan dengan pixel lahan. Uji T dilakukan terhadap data pendugaan persentase serangan dan perhitungan manual dengan menggunakan bantuan planimeter. Dari uji T didapatkan hasil bahwa kedua data memiliki besar yang sama. Berdasarkan hal tersebut maka dapat disimpulkan bahwa algoritma pendugaan image processing untuk menduga luasan serangan penyakit tungro adalah akuisisi citra, normalisasi warna, mosaicking, resize, perhitungan skala, perhitungan pixel lahan, perhitungan pixel serangan dan perhitungan persentase serangan.

KAJIAN TENTANG PERLAKUAN JARAK ANTAR ELEKTRODA TEMBAGA TERHADAP KINERJA SENSOR KONDUKTIVITAS LISTRIK TANAH TIPE KAPASITIF

BETA (Biosistem dan Teknik Pertanian) Vol 3, No 1 (2015): Februari
Publisher : Universitas Udayana

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The measurement of EC can be conducted in two ways, namely electromagnetic induction and direct contact. This study using capacitive direct contact. The aims of this study were to determine the relationship between distance, shape and electrode materials to the measurements performance, and to determine to treatment that has the best performance. The study was started by designing the electrodes then continued by functional test and performance test. The treatments used was electrodes distances of 3, 6, 9, 12 & 15 mm. The electrode probe was inserting into the soil with the depth of 20 cm to get the frequency and at the same time soil sample was collected for analyzed in the laboratory to get the EC values. Based on those data the relationship of between soil frequency and EC were then analyzed. The results indicated that the best performance electrode with distance 3 mm. The equation of soil frequency and EC was EC = 0.186875 Fsoil - 10.5695 with R2 = 0.861, RMSE = 0.04, stability = 0.04 and respond time = 37.35 second.

PERANCANGAN SISTEM IRIGASI OTOMATIS DENGAN SENSOR RESISTIF BERBASIS KADAR AIR TANAH PADA TANAMAN RUKOLA (Eruca sativa)

BETA (Biosistem dan Teknik Pertanian) Vol 4, No 1 (2016): Maret
Publisher : Universitas Udayana

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Abstract

Rukola (Eruca sativa) is a horticultural plants originating from the Mediterranean with a high of vitamins such as A, B complex, C, and K. Rukola can be growed well at low ambient temperatures with soil moisture content between 20% - 40%. Therefore, irrigation control system is required to obtain at the appropriate moisture content for rukola plants. The objective of this research was to build an automatic irrigation system with the resistive sensor based on soil moisture, that can perform automatic irrigation accordance optimal water content in rukola cultivation. The control system in this research was created using the multiplexing control system with resistive AC stainless steel sensors. The sensors was read the resistive of soil moisture that calibrated into a percent (%) of water content and displayed on the display per second. The output of the pump is controlled by limits of water content that programmed by the microcontroller AVR AT Mega 8535. Calibration control system conducted at field capacity and permanent wilting point. Automatic irrigation control system was able to work well with the limits defined soil moisture is 20% lower limit and 39% upper limit. The first testing results of control system I have R2 0.8462 with RMSE values 0.02 and control system II have R2 0.8603 with RMSE value 0.02. The second test of control system I have R2 0.8896 with RMSE value 0.01 and control system II have R2 0.9121 with RMSE value 0.02. If R2 that exceeds the value of 0.7 and RMSE (Root Mean Square Error) ? 0.1, then the performance of the automatic irrigation control system is working accurately.

Kajian tentang Perlakuan Bentuk Konfigurasi Elektroda terhadap Kinerja Sensor Konduktivitas Listrik Tanah Jenis Kapasitif

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 4 No 2 (2016): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

The measurement of EC can be conducted in two ways, namely electromagnetic induction and direct contact. This study using capacitive direct contact. The aims of this study were to determine the relationship of configurations shape each other of electrode to the measurements performance, and to determine to treatment that has the best performance. The study was started by designing the electrodes then continued by functional test and performance test. The treatments used was electrodes shape of ring, hair and triangle, and electrodes configuration of each shape was 2, 4, 6 and 8. The electrode probe was inserting into the soil with the depth of 20 cm to get the frequency and at the same time soil sample was collected for analyzed in the laboratory to get the EC values. Based on those data the relationship of between soil frequency and EC were then analyzed. The results indicated that the best performance was hair shapes with 2 configuration. The equation of soil frequency and EC was EC = 0.080590 F(soil) - 4.48289 with R2 = 0.851, RMSE = 0.066, stability = 0.02 and respond time = 7.41 second.

Rancang Bangun Pengendali Suhu, Kelembaban Udara dan Cahaya dalam Greenhouse Berbasis Arduino dan Android

Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 3 No 2 (2018)
Publisher : Universitas Udayana

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Abstract

Budidaya tanaman dalam greenhouse, menghasilkan tanaman dengan dimensi fisik yang lebih baik daripada tanaman yang dibudidayakan diluar greenhous, karena dengan membudayakan tanaman dalam greenhouse kita dapat mengendalikan kondisi atau variabel yang mempengaruhi pertumbuhan tanaman, adapun kondisi yang perlu dikendalikan dalam greenhouse antara lain adalah suhu, kelembaban udara dan intensitas sinar dalam greenhouse. Penelitian ini bertujuan untuk membuat alat pengendali suhu, kelembaban dan intensitas sinar dalam greenhouse dengan menggunakan Arduino Mega 2560 sebagai pemroses, sensor DHT22 sebagai sensor suhu dan kelembaban udara, sensor BH1750 sebagai sensor intensitas sinar. Alat pengendali ini yang nantinya akan mengendalikan on/off kipas exhaust, led fotosintesis, dan pompa air. Sensor DHT22 memiliki error pengukuran suhu sebesar 1,28% dan kelembaban 1,64%. Sensor BH1750 memiliki pengukuran intensitas cahaya sebesar 8,21%. Kondisi suhu, kelembaban udara, dan intensitas sinar dapat dipantau dan dikendalikan secara remote dengan menggunakan smartphone bersistem operasi Android

Hubungan Antara Persentase Serangan Hama Tikus dengan Produktivitas Lahan Melalui Pendekatan Foto Udara

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

Rats pest is one of the any pests that can harm the farmers. Pest rodent attacks can decrease yields even affect to crop failures. The percentage of rice fields attack will affect the productivity inversed. The bigger percentage of rodent pests, will make the lower rice fields productivity. Therefore, this study aims to determine the relationship between percentage of pest roddents attacks with rice field productivity. Stages that must be passed in this research, among others, data retrieval, image processing analysis, regression analysis, validation and ending with the calculation of accuracy. Field data taking includes the acquisition of aerial photography and measurement of the harvest. Analysis of image processing using Adobe Photoshop CS6 software support and Matlab 2013 software. Regression analysis using Microsoft Excel 2013 software assistance using three types of regression analysis, among others: linear regression, quadratic regression, rank polynomial regression 3. Polynomial regression equation of rank 3 yields the best equation. The polynomial equation of rank 3 obtained as follows y = -1.10-6x3 + 0.0003x2 - 0,0218x + 0,6159 with a coefficient of determination equal to 0,9645 or can also be interpreted 96,45% variation of dependent variable can be explained by the free variable . The error value of the equation is 8.17% percentage of attack productivity.

Rancang Bangun Program menggunakan Metode Fuzzy untuk Penilaian Aspek Palemahan pada Sistem Subak (Studi Kasus pada Sistem Subak di Kawasan Warisan Budaya Dunia Catur Angga Batukau)

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 1 (2019): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

Abstrak Subak merupakan sebuah lembaga yang bertugas dalam mengatur air irigasi secara tradisional. Subak dalam aktivitasnya berlandaskan pada Tri Hita Karana (THK). Salah satu aspek dari Tri Hita Karana (THK) yang  dinilai adalah aspek palemahan. Tujuan penelitian ini adalah untuk merancang suatu program untuk menilai kondisi aspek palemahan dalam sistem subak menggunakan Matlab-GUI berbasis logika fuzzy yang diberi nama Sistem Informasi TAKSU (Tri Hita Karana Subak). Dalam membuat toolbox fuzzy tahapan yang paling penting untuk dilakukan adalah merancang rule. Perolehan data dilakukan dengan metode survei, pengamatan secara langsung dan pengukuran. Data yang telah dikumpulkan selanjutnya akan diberi nilai dan dianalisis dengan logika fuzzy. Subak dinilai dengan menggunakan tiga rentang nilai yaitu Baik = 3, Sedang = 2, Kurang = 1. Program ini terdiri dari input, algoritma yang merupakan fungsi dari perancangan yang dilakukan pada toolbox fuzzy Matlab dan output sebagai hasil dari program tersebut. Berdasarkan hasil validasi yang dilakukan pada dua sampel subak diperoleh nilai pada Subak Jatiluwih adalah 2.23 dengan kriteria Agak Baik dan Subak Puring 2.73 dengan kriteria Baik. Hasil tersebut menunjukkan bahwa program ini dapat beroperasi dengan baik Kata kunci: aspek palemahan, GUI Matlab, logika fuzzy, Subak, Tri Hita Karana (THK). Abstract Subak is an institution in charge of regulating the irrigation traditionally. System Subak activities are based on Tri Hita Karana (THK). One aspect of Tri Hita Karana (THK) is the palemahan aspect. The purpose of this research was to develop a program to assess the condition of palemahan aspect in subak system using Matlab-GUI based fuzzy logic that named TAKSU Information System (Tri Hita Karana Subak). In creating a fuzzy toolbox, the most important step to do is to design rules. Data were collected by survey method, direct observation and measurement. The data were categorized by value and then analyzed with fuzzy logic. Subak were assessed by using three value criteria that were Good = 3, Medium = 2, Less = 1. This program consists of input, an algorithm which is a function of the design carried out on the fuzzy Matlab toolbox and output as a result of the program. Based on the results of the validation carried out on two samples of subak, the value of Subat Jatiluwih was 2.23 with the criteria of Good and Subak Puring was 2.73 with the criteria of Good. These results indicate that this program can operate properly. Keyword : palemahan aspect, Matlab-GUI, fuzzy logic, Subak, Tri Hita Karana (THK).

Analisis Iklim Mikro di dalam Sungkup Plastik pada Budidaya Tanaman Selada Keriting (Lactuca sativa var. cripa L).

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 1 (2019): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

Tujuan dari penelitian ini adalah untuk (1) menganalisis iklim mikro di dalam sungkup plastik dengan tinggi yang berbeda pada budidaya tanaman selada keriting dan (2) menentukan tinggi sungkup plastik yang sesuai dengan produktivitas tanaman selada keriting. Penelitian ini menggunakan rancang acak lengkap, terdiri dari empat perlakuan dan tiga ulangan, yaitu: SP0 perlakuan tanpa sungkup, SP1 perlakuan sungkup plastik tinggi 80 cm dengan tinggi ventilasi 45 cm, SP2 perlakuan sungkup plastik tinggi 100 cm dengan tinggi ventilasi 45 cm, dan SP3 perlakuan sungkup plastik tinggi 120 cm dengan tinggi ventilasi 45 cm. Hasil penelitian pada perlakuan sungkup plastik dengan tinggi 120 cm memperoleh intensitas cahaya tertinggi sebesar 651.1 lux dan mendapatkan suhu udara tertinggi sebesar 24.10C. Sungkup plastik dengan tinggi 80 cm memperoleh kelembaban relatif tertinggi sebesar 76.3%. Perlakuan sungkup plastik tinggi 80 cm memperoleh produktivitas tertinggi sebesar 5,6 g/tanaman.       Kata kunci: selada keriting, iklim mikro, sungkup plastik,produktivitas