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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 12 Documents
 1   2 
Search results for , issue "vol 7 no 1 (2019): april" : 12 Documents clear
Pengolahan Tanah Menggunakan Bajak Singkal Lebih Sedikit Memerlukan Air Irigasi daripada Bajak Rotary Gusti Bagus Alit Budi Artawan; I Wayan Tika; Nyoman Sucipta
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.i01.p01

Abstract

This research was conducted to know the difference of irrigation water requirement in the preparation of land using chisel plow and rotary plow. The variables observed in this study include: solum volume, soil porosity, initial moisture content of the soil, water requirements for inundation, puddle volume, and duration of soil tillage. Location used as sample of paddy field as much as 15 point sample for each plow which is grouped into three locations that is at upstream, middle, and downstream. At each location five rice samples were taken for each plow treatment. The volume of solum on the treated rice field using the chisel plow of 2122.00 m3 / ha while the volume of solum using rotary plow of 2.096,33 m3 / ha. The initial soil moisture content in paddy field used as sample for chisel plow is 52,98% while rotary plow is 45,63%. The water requirement for the saturation of paddy field that is processed by rotary plow is bigger than the chisel plow is 505.97 m3 / ha, whereas in the chisel plow is 377,11 m3 / ha. The volume of inundation in the rotary plow is greater than the chisel plow rotary plow of 401.33 m3 / ha and chisel plow of 141.00 m3 / ha. For the length of time required to cultivate the soil, the chisel plow takes longer time of 29.69 hours / ha, while the rotary plow takes 14.35 hours / ha. The results of this study indicate that the processing of soil using plows of chisel requires less water than the rotary plow. In the processing of the soil using the plot of water chisel required is 5.07 l/dt, while for the rotary plow requires water as much as17.691 / dt
Analisis Profil Suhu dan Kadar Air Tanah Pada Budidaya Cabai Rawit (C. frutescens L) Menggunakan Beberapa Macam Mulsa Ni Made Dea Kanikayani; Sumiyati Sumiyati; Ida Ayu Bintang
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.i29

Abstract

The purpose of this research is to water content and soil temperature profile content on mulch forcultivation of cayenne pepper plants with different types of mulch. This research use random designgroup, every each concist of five treatment and three repetation. Which is a treatment without mulch treatment, silver plastic mulch treatment, black plastic mulch treatment, clear plastic mulchtreatment , and rice straw mulch treatment. The variable observed of soil temperature using atemperature sensor DS18B20 while for soil water content using the gravimetric method.Measurement of temperature and soil water content was carried out 3 times, namely at the 3 days, 30 days , and 60 days after planting . The result of the temperature and soil water content is made a profile of the temperature and soil water content in the mulch using the contour line method. The results of the soil temperature research show the profile contour when the at 3 days, without mulch distribution profile is 29-33 0C, silver plastic mulch 28-32 0C, black plastic mulch 29-34 0C, clear plastic mulch 28-32 0C and rice straw mulch 25-300C. At 30 days, without mulch distribution profile is 26-33 0C, silver plastic mulch 26-31 0C, black plastic mulch 27-33 0C, clear plastic mulch 28-32 0C and rice straw mulch 25-300C. At 60 days, without mulch distribution profile is 26-31 0C, silver plastic mulch 25-30 0C, black plastic mulch 27-32 0C, clear plastic mulch 31-370C and rice straw mulch 26-290C. The results of measurements of the soil temperature obtained in relation to the results of the soil water content
Dampak Penggunaan Naungan Plastik terhadap Profil Iklim Mikro pada Budidaya Kentang Bibit (Solanum tuberosum L) Varietas Granola Kelompok G0 I Putu Tantra Ardika; Yohanes Setiyo; Sumiyati Sumiyati
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.i30

Abstract

The purpose of this study was to (1) determine the microclimate profile of plastic shade with different plastic colors and (2) find out the color of plastic for the appropriate shade to increase the quality of granola G0 potato varieties. This study used a completely randomized design, each consisting of four treatments and three replications, namely treatment without shade, transparent plastic shade treatment, blue plastic shade treatment and red plastic shade treatment. For microclimate measurement, the temperature and humidity meter and light meter are used. Microclimate measurement is done once a week, which is at 12.00 p.m. Analysis of sunlight intensity data was carried out to make profile image in the shade using metose contour lines, while the results of measurements of air temperature, soil temperature, humidity and quality variables obtained were processed using a Microsoft Excel computer program to obta in graphics, then analyzed using the deskiptive method and continued the analysis using variance analysis (ANOVA). The result of the intensity of sunlight is made profile countur, and the result of measurement of air temperature, soild temperature, moisture and variable quality is made graph.The results of the study of solar light intensity show the contour of the profile when the plant is two weeks old, the clear shade distribution profile is 975-1025 lux, the shade is read 675-725 lux, the shade is blue 575-595 lux, while in the eight week old plant, the clear shade is 100-800 lux,  the shade is red 100-700 lux, and the shade is blue 100-400 lux. Average air temperature without shade 26,2 0C, clear shade 26,8 0C, red shade 26,6 0C, blue shade 26,2 0C, average moisture without shade 76%, clear shade 77%, red shade 78%, and blue shade 79%. The treatment of clear shade shows the best quality, that is an average of 4,4 tubers every single tree, average 257,6 grams every single tree and average of 1 tuber every single tree.
Analisis Profil Iklim Mikro pada Budidaya Cabai Rawit (Capsicum Frutescens L) MenggunakanBahan Sungkup Plastik, Paranet, dan Kombinasi I Made Wahyu Guna Arta; Sumiyati Sumiyati; Ida Ayu Bintang Madrini
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.i31

Abstract

The hood is an alternative to overcome the high intensity of sunlight. In this study the type of containment material treatment can be divided into 3 types of containment material, namely the type of plastic lid material, paranet and combination. For microclimate measurements, a temperature and humidity meter and a light meter are used. Microclimate measurements were carried out at 12.00 WITA, on cayenne pepper from 7 days to 35 HTS. Micro climate data analysis is done by interpolation to obtain the profile contour lines. The results of the study showed that there were different shapes and distribution of different micro-climate profile contours, especially in light intensity. At air temperature and air humidity can not obtain contour lines, because the results of the data from the research conducted are not much different. Plant growth rates in each treatment showed different productivity. In this type of paranet lid material shows better results compared to the type of plastic hood and combination material. In this type of paranet lid material produces an average dry weight of 247.9 grams
Optimalisasi Proses Fermentasi Urin Sap Komang Suteja Pramana; Yohanes Setiyo; I Gst. Ngr. Apriadi A.
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.i13.

Abstract

This study discusses the fermentation of cow urine into bio urine. The purpose of this study was to optimize the fermentation process of bio urine from cow urine by giving starter bio urine. This study used a Completely Randomized Design with four treatments and three repeat. The treatment were without starter bio urine, 10 percent starter bio urine, 20 percent starter bio urine, and 30 percent starter bio urine. Each treatment was giving 1 liters molasses and 1 aerator. The observed variables were the degree of acidity (pH), biochemical oxygen demand, total dissolved solids, electrical conductivity, organic carbon, and nitrogen. The result of this study was the addition of starter no significant effect on the fermentation process of cow urine. But the process of cow urine fermentation can be accelerated from 15 days to 6 days. This is marked by the value of biochemical oxygen demand which has decreased on the 6 day of fermentation. Fermentation result was according on the standard No.70/Permentan/SR.140/10/2011. Of the four treatments in the process of cow urine fermentation, the treatment with no starter of bio urine was the best treatment, the treatment produce electrical conductivity 5622 mS, biochemical oxygen demand 3.3 mg/l, total dissolved sol ids 2811 ppm, acidity pH 5.77, organic carbon 3.77 percent, nitrogen 0.14 percent and C/N ratio 26,93. However, for the nitrogen content of bio urine not enough to meet the Permenta standard was 3-6 percen.
Pemanfaatan Air Kelapa dan Asam Sitrat Sebagai Larutan Peraga Menggunakan Teknik Holding Untuk Memperpanjang Masa Kesegaran Bunga Potong Krisan (Chrysanthemum indicum L.) Type Spray Maria Magdalena Kristiani Mbulu; Ida Ayu Rina Pratiwi Pudja; Ni Luh Yulianti
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.i14.

Abstract

This research aims to obtain the best concentration of coconut water and citric acid as a solution to extend Chrysanthemum cut flowers’ freshness period. The research is consisted of 25 experimental units, each experiment was repeated twice to gain 50 experimental units. The research uses a completely randomized design (CRD) with an experimental factor. The factor is a combination of coconut water and citric acid. The concentration of coconut water which was used 0%, 4%, 8%,12% and 16% meanwhile the concentrations of citric acid which was used 0 ppm,100 ppm, 200 ppm, 300 ppm, and 400 ppm. The parameters which is measured are;the flower‘s freshness period, percentage of flower bloom, the absorbed solution and the flower’s color. Based on the results of the research, it is known that the best treatment is the concentration of coconut water 4% and citric acid 400 ppm that will gain 11 days of flowers’ freshness period, the percentage of flowers’ bloom is 65.5%, the total absorbed solution is 177.5 ml with flower’s color becoming very faded and slightly brown.
Rancang Bangun Program menggunakan MetodeFuzzyuntukPenilaian Aspek Palemahan pada Sistem Subak(Studi Kasus pada Sistem Subak di Kawasan Warisan Budaya DuniaCatur Angga Batukau) Kadek Dwi Ananda Nugraha; Sumiyati Sumiyati; I Putu Gede Budisanjaya
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.i01.

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.
Analisis Iklim Mikro di dalam Sungkup PlastikpadaBudidaya Tanaman SeladaKeriting (Lactuca sativa var. cripaL) I Kadek Ari Andika,; Yohanes Setiyo; I Gede Budi Sanjaya
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.i15.

Abstract

The purpose of this study were to (1) analyze the microclimate within the plastic hood different heights for the cultivation of curly lettuce plants and (2) know the height of the suitable plastic hood on the productivity of the curly lettuce plant. This research using completely randomized design, with four treatments and three replications: SP0 treatment without hood, SP1 treatment of plastic hood height 80 cm with a height of 45cm ventilation, SP2 treatment of plastic hood height 100 cm with a height of 45 cm ventilation, and SP3 treatment of plastic hood height 120 cm with height ventilation 45 cm. The result of this research on treatment of plastic hood height 120 cm obtain highest light intensity at 651.1 lux, got the highest temperature at 24.10C and treatment of plastic lid height 80 cm obtain highest relative humidity at 76.3%. The Treatment hood height plastic of 80 cm obtained the highest productivity of 5.6 g/plant
Pengaruh PerlakuanUap Etanolterhadap Mutu dan Masa Simpan Buah Manggis (Garcinia Mangostana L.) I Gusti Ayu Prapti Pundari; I Made Supartha Utama; Ni Luh Yulianti
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.i16.

Abstract

The aim of this research was to determine the effect of etanol vapor on the quality and the shelf life of mangosteen at the room temperature. Three different volumes of ethanol, namely 0 ml, 2 ml and 4 ml, were trapped in the 5gram carrageenan placed in the tea sachets. The sachet was then put on the basal of styrofoam tray on which 5 fruits were placed and then wraped by streching film LDPE. Control fruits or un-treated fruits were also provided as comparison. The result showed that the ethanol vapor treatments, in general, significantly reduced the intensity of damage, weidght loss, slowing the change rate of texture, color of fruit surface and aril, total soluble solid and vitamin C of the aril, compared to the control fruits. The ethanol vapor was also able to give better preferences of panelists on the color and flavor of the aril, as well as the overall performances of the fruits compared to the controls. The 4 mL ethanol per package created ethanol vapor of which the best vapor to reduce the rate of damage and the change of quality and increase the panelists preferences.
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.

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