cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Sri Handayani Nofiyanti
Contact Email
handayaninofiyanti@unud.ac.id
Phone
+6281339409979
Journal Mail Official
jurnalbetatep@unud.ac.id
Editorial Address
Jl. Raya Kampus Unud No.2013, Jimbaran, Kec. Kuta Sel., Kabupaten Badung, Bali 80361
Location
Kota denpasar,
Bali
INDONESIA
Jurnal BETA (Biosistem dan Teknik Pertanian)
Published by Universitas Udayana
ISSN : -     EISSN : 25023012     DOI : https://doi.org/10.24843/JBETA.2025.v13.i02
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Jurnal BETA (Biosistem dan Teknik Pertanian) memuat hasil penelitian di bidang teknik biosistem (biosystem engineering). Cakupan dari jurnal ini merentang dari aplikasi ilmu keteknikan untuk pertanian. Diantara bidang ilmu tersebut, yang menjadi fokus adalah Bidang Manajemen Keteknikan Pertanian, Teknologi Pascapanen khususnya produk Hortikultura, Rekayasa dan Ergonomika, Konservasi Sumber Daya Alam, serta khusus tentang aplikasi Instrumentasi dan Sistem kontrol dalam bidang pertanian.
Arjuna Subject : -
Articles 740 Documents
 48   49   50   51   52 
KAJIAN TENTANG PERLAKUAN BENTUK KONFIGURASI ELEKTRODA TERHADAP KINERJA SENSOR KONDUKTIVITAS LISTRIK TANAH JENIS KAPASITIF Wahyu Octavianus; I Made Anom S. Wijaya; I Putu Gede Budi Sanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 4 No 2 (2016): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/j.beta.2016.v04.i02.p13

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. Theequation 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
Analisis Rasio Prestasi Manajemen Irigasi pada Distribusi Air di Subak Kabupaten Tabanan I Kadek Yuda Arnanda; I Wayan Tika; I. A Gede Bintang Madrini
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 2 (2020): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2020.v08.i02.p13

Abstract

Subak system is one form of irrigation system that is able to accommodate the dynamics of the sociotechnical system of the local community. Irrigation water is managed with the principles of justice, openness, harmony and togetherness, through a flexible organization that is in accordance with the interests of the community. Irrigation systems are closely related to the distribution of irrigation water in subaks based on land area. One aspect that will be assessed in an irrigation system is the Irrigation Management Achievement Ratio (RPM). The purpose of this study is to determine the RPM classification in a subak by scoring in each RPM classification. Secondary data acquisition is done by survey method, direct observation and measurement. The collected data will then be analyzed using the Irrigation Management Achievement Ratio (RPM) method. Irrigation RPM for each subak is assessed using four ranges of values, namely Good if 0.75 1.60 The results of the analysis method of irrigation management achievement ratio in the distribution of water in the subak obtained by the upstream area RPM namely Pama Palian, Aya I and Aya II have a good RPM that is an average of 100%. The availability of water is so abundant due to the upstream subak, the first subak to take water in an irrigation area. And the most important thing is the optimal water supply management system. For the subak area the RPM is slightly different from the upstream area. The average RPM of the central irrigation area that has sufficient criteria is 15.5% while 84.5% is good. For the central irrigation area which has sufficient RPM criteria with a value of 15.5% caused by the distribution of water is not as optimal as the upstream irrigation area. For Subak downstream irrigation areas the overall average RPM is 100% good, this is because the distribution of downstream irrigation water distribution is optimal according to the area of the land.
Pendugaan Intensitas Serangan Penyakit BLB (Bacterial Leaf Blight) pada Tanaman Padi menggunakan Pendekatan Citra Termal Ni Luh Putu Jullyantari; I Made Anom. S. Wijaya; I Putu Gede Budisanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 1 (2021): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2021.v09.i01.p09

Abstract

Bacterial Leaf Blight (BLB) is a dangerous disease for rice plants. This disease can attack in every phase of growth. Calculation of BLB disease attack intensity is currently still done manually. Technology development in estimating the intensity of BLB disease is very necessary. This study aims to establish the equation for estimating BLB disease intensity using a thermal image approach. Drone DJI Inspire 1 with a thermal camera DJI Zenmuse XT was used in this research. Processing data using software Agisoft Photoscan, Arcgis 10.3 and Microsoft Excel. From the results of the thermal image analysis, it was found that the equation for estimating attack intensity is y = 4.9533x-144.42 and estimation accuracy is high at 90,45% with an error value of 8,43%. Temperature of the canopy can be classified into four according to the intensity of the attack, namely 29,83-31,84oC for mild attack intensity, 31,85-34,39oC for moderate attack intensity, 34,40-43,52oC for intensity of severe attacks and 43,53-48,09oC for intensity of puso attacks. From these results it can be concluded that the thermal image approach can be used to estimate BLB disease attacks on rice plants.
Modifikasi Instalasi Biogas Kotoran Sapi Tipe Fixed Dome di Anggota Kelompok Tani Kanti Sembada Desa Candikuning Roi Zulkarnaen
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 1 (2017): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2017.v05.i01.p03

Abstract

The purpose of this study were to design fixed-dome type bioreactor and to measure its performance. through biogas prosessing that was made from cow dung feces with optimal process temperature. The components of the bioreactor were: biomass inlet, digestion tank, the bioreactor mantle, the bioreactor dome, and outlet basin for sludge. Through design analysing were obtain spesification of bioreactor was 426 cm long, diameter of 160 cm, 200 cm height and a total volume of 3.04 m3. The mantle of bioreactor which 10 cm thick was filled with sand. Results of bioreactor performance test showed that for 35 days the temperature of the biomass in the bioreactor was greater than the ambient temperature. The larger gap between both temperature was 6.8° C which achieved at day 27th of fermentation and the biomass temperature was 31° C. The gas pressure inside the bioreactor increased in accordance with the increase of biomass temperature. Biogas production per day achieved at average of 2.,31 liter with 2.5 cmH2O preassure.
Analisis Tingkat Akurasi Pendugaan Serangan Penyakit Blas Menggunakan Pendekatan Citra Multispektral pada Berbagai Ketinggian Akuisisi Komang Puspha Nirmalayani; I Made Anom Sutrisna Wijaya; Sumiyati Harimurti
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 2 (2024): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2024.v12.i02.p13

Abstract

Measurement of the intensity of blast disease attack is usually done manually, so it takes a long time and accuracy in identifying. This can hamper the handling which causes the spread to be more widespread so that it risks a decrease in rice productivity, so it is necessary to develop the estimation of attack intensity through technology using multispectra l imagery. This study aims to determine the relationship between vegetation index and the intensity of rice disease attack at various heights of image acquisition and get the accuracy of estimating the intensity of rice disease attack at various heights. S amples of disease attack intensity were taken as many as 3 plots where each plot was taken 5 points diagonally with per point taken 9 clumps. Followed by acquiring images of heights of 15 meters, 30 meters, and 45 meters using a Phantom 4 drone equipped wi th a multispectral camera, after the image is obtained, continued mosaicing using Agisoft software, then normalization using Photoshop. NDVI, SAVI, CIG vegetation index analysis is carried out using QGIS 2.28. The results showed that correlation was made t o obtain the equation used for validation, and accuracy. The relationship between vegetation index and blast disease intensity at various altitudes was linearly correlated. Vegetation index NDVI 15 meters, SAVI 15 meters and 30 meters, CIG 15 meters, 30 me ters, and 45 meters were strongly correlated. Vegetation indices NDVI at 30 meters, SAVI at 45 meters were strongly correlated with disease intensity, while NDVI at 45 meters was moderately strongly correlated with disease intensity. The 15 - meter NDVI had the highest accuracy of 97.96%. Multispectral imagery with a height of 15 meters can be used to predict blast disease because it has a very strong correlation and high accuracy for estimation
Analisis Kebutuhan Air Dan Finansial Tanaman Krisan (Chrysanthemum Sp.) Dengan Metode Guludan Dan Pot I Gede Ngurah Salpatira Widayana; I Wayan Tika; I Made Anom S. Wijaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 1 (2019): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2019.v07.i17.

Abstract

Chrysanthemum flower (Chrysanthemum sp.) are one of the ornamental plants produced as cut flowers. Chrysanthemum cultivation usually uses the bund method, but nowadays chrysanthemum cultivation has develoved using the pot method. The development of two methods of cultivation resulted in differences in the plant water requirements and financial in each methods. Therefore it is necessary to conduct research to analyze the plant water requirement and the financial feasibility of each method. The purpose of this research are to : (1) determine the difference of water requirement level on the cultivation of chrysanthemum flower using the method of bund and pot, and (2) analyze the finance feasibility on cultivation of chrysanthemum flower with both methods. The treatment of this research are : cultivation of chrysanthemum flower with bund method and cultivation of chrysanthemum flower with pot method. In each method analyzed plant water requirements (ETc) and financial feasibility. The analysis of financial feasibility used in this research is NPV, IRR and BCR. Total requirement of chrysanthemum flower water with bund and pot method are 1056,72 ml/plant and 866,64 ml/plant, while the average daily water requirement is 19,57 ml/day, and 16,05 ml/day. The financial feasibility result of this are NPV on bund method as much as Rp.5.687.537,35 is smaller than the pot method which is worth Rp. 12.627.709,99. IRR from the bund method with percentage 15% smaller than pot method with the percentage of 18%. The BCR analysis of the bund method yields 1.51 which is smaller than the pot method which yields 1.63. although both methods of chrysanthemum flower cultivation are said to be feasible, but the pot method is more advantageous than the method of bunds in financial terms.
Pengaruh Perbandingan Jerami d an Kot oran Sapi Terhadap Profil Suhu d an Karakterist ik Pupuk Kompos y ang Dihasilkan Sebastião Massa; Yohanes Setiyo; I Wayan Widi
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 4 No 2 (2016): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/j.beta.2016.v04.i02.p08

Abstract

The purpose of the study was to determine the effect of straw and cow manure comparison to the temperature profile and the characteristics of the producing compost. The experiments ware performed using a randomized block design (RBD) with three levels of treatment comparisons between the composition of straw and cow dung. Whereas the treatment was used as control only using straw materials. Observations conducted on two things the temperature profile during the composting process and the characteristics of the resulting Compost. The results showed the addition of manure increases the temperature of the composting process is temperature mesophilic phase (30-35˚C). Compost produced has characteristics include an average pH 7.3, average content 5.5% and C-organic 26.9%.
Pengaruh Jenis Kemasan Terhadap Karakteristik Teh Herbal Daun Bambu Tabah (Gigantochloa nigrociliata Buse-Kurz) Selama Penyimpanan Maria Elfira Semana; Pande Ketut Diah Kencana; I Gusti Ngurah Apriadi Aviantara
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 1 (2021): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2021.v09.i01.p10

Abstract

The purpose of the study was to determine the packaging that maintain the quality characteristics contained in tabah bamboo leaf herbal tea with packaging treatment using threes different types of packaging stored in an incubator with a temperature of 30°C ± 3°C with a storage time of 42 days. This study used a completely randomized design (CRD) which consisted of two factors, namely the use of different types of packaging and storage time and three replications. The first factor consists of three levels, namely, (K1): Aluminum Foil, (K2): Polypropylene Plastic (PP), and (K3): Paper Sack. The second factor consists of three levels, namely, (T1): 14 days of storage, (T2): 28 days of storage, and (T3): 42 days of storage. The parameters observed in the study consisted of moisture content, pH, total acid, total phenol, total flavonoids, and organoleptic tests consisting of color, aroma, and taste of brewed tabah bamboo tea leaves. The results showed that the highest phenol content was found in the treatment of using aluminum foil packaging for 42 days, which was 119,354 mg / 100g and the highest or best total flavonoids were found in the treatment of using aluminum foil packaging for 42 days, namely 27,419 mg / 100g.
Analisis Tingkat Kepuasan Petani Paprika (Capsicum annum L.) terhadap Penggunaan Fungisida Kimia (Studi Kasus di Desa Candikuning, Baturiti, Tabanan, Bali) Riski Nirmala Sidabutar; Ida Bagus Putu Gunadnya; Ida Ayu Rina Pratiwi Pudja
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 2 (2020): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2020.v08.i02.p14

Abstract

Paprika is a potential vegetable commodity with a fairly high amount of production. This type of plant is very susceptible to plant diseases and requires intensive fungicides in cultivation. The types of chemical fungicides used by farmers are Rubikan, Linertin and Demolis. All of these fungicides are used by spraying on paprika plants. The purpose of this study is to analyze the level of satisfaction of farmers and to determine the factors that influence the satisfaction of farmers in using the chemical fungicide. Data were collected by a random survey of 30 paprika farmers in Candikuning Village in April-May 2019. Data analysis was performed using descriptive methods, Important Performance Analysis (IPA), and Customer Satisfaction Index (CSI). The results showed that farmers were very satisfied (76%) about the use of chemical fungicides. Factors affecting the level of satisfaction of paprika farmers are brand image of the product, the ability to increase yields, more profitable, benefits in getting paprika yields and quality of fungicide products
Perombakan Bahan Limbah Kelapa Sawit dengan Metode Vermikompos Dian Pratama Putra; Reni Astuti Widyowanti; Rengga Arnalis Renjani; Andreas Wahyu Krisdiarto
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 1 (2021): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2021.v09.i01.p11

Abstract

One of the problems with palm oil mill waste is the management of Oil Palm Empty Bunches (OPEFB). One method that can be used for handling OPEFB waste is by converting it biologically to green fertilizer. The method used in this research is observation and descriptive analysis methods for each treatment. The length of the study was 28 days. The tools used were a hoe, bucket, watering can, and a place for vermicomposting. Testing equipment includes scales, pH meters and calipers. Material used was palm oil waste (sludge, solid, and empty bunches). The treatment carried out was to composite 3 materials - palm oil waste materials with a proportion of 100%, 50%, and 25%. The composite was then given 500 grams of Lumbricus rubellus worms per treatment. The parameters measured were the decomposition rate, pH, characteristics of the worms which were observed every 7 days up to 28 days. The rate of decomposition of organic matter received the highest response in the mixing treatment of L6 (65%) and L7 (88%) media. The decomposition process did not affect the pH of the media. The average pH obtained was 6. The process of decomposition rate and media pH did not affect the characteristics of Lumbricus rubellus worms. The growth of the worms increased, which is presumably because the media conditions were suitable for their survival.

Page 50 of 74 | Total Record : 740

 48   49   50   51   52 

Filter by Year

2013 2026


Reset
Filter By Issues
All Issue Vol 14 No 2 (2026): INPRESS Vol 14 No 1 (2026): Inpress Vol 13 No 2 (2025): September Vol 13 No 1 (2025): IN PRESS Vol 13 No 1 (2025): April Vol 12 No 2 (2024): September Vol 12 No 1 (2024): April Vol 11 No 2 (2023): IN PRESS Vol 11 No 2 (2023): September Vol 11 No 1 (2023): April Vol 10 No 2 (2022): September Vol 10 No 1 (2022): April Vol 9 No 2 (2021): September Vol 9 No 1 (2021): April Vol 8 No 2 (2020): September Vol 8 No 1 (2020): April Vol 7 No 2 (2019): September Vol 7 No 1 (2019): Maret Vol 7 No 1 (2019): April Vol 6 No 2 (2018): September Vol 6 No 1 (2018): Maret Vol 6 No 1 (2018): April Vol 5 No 2 (2017): September Vol 5 No 1 (2017): April Vol 5 No 1 (2017): maret Vol 4 No 2 (2016): September Vol 4 No 1 (2016): April Vol 4 No 1 (2016): Maret Vol 3 No 2 (2015): September Vol 3 No 2 (2015): Agustus Vol 3 No 1 (2015): Maret Vol 3 No 1 (2015): April Vol 2 No 2 (2014): Agustus Vol 2 No 2 (2014): September Vol 2 No 1 (2014): Maret Vol 2 No 1 (2014): April Vol 1 No 2 (2013): Agustus Vol 1 No 1 (2013): Maret More Issue