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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 740 Documents
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Pengaruh Lama Waktu Cekaman Anaerobik dan Konsentrasi Emulsi Lilin Lebah Sebagai Bahan Pelapis Terhadap Mutu dan Masa Simpan Buah Tomat Ni Putu Nita Lospiani; I Made Supartha Utama; Ida Ayu Rina Pratiwi Pudja
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 2 (2017): 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.2017.v05.i02.p01

Abstract

Tomato (Lycopersicon esculentum Mill) is classified as one of fruity vegetables which could grow both sub-tropical region and tropical region. Tomato fruits are naturally prone to damage during the postharvest period. Extending the shelf-life of the fruits could be done by using edible natural coating. Beeswax is one of the natural edible materials that could be applied for fruit coating which is safe to be consumed. Anaerobic stress given to the fruits aimed to create suitable anaerobic volatiles to reduce the deterioration rate during the postharvest period; therefore, prolong the shelf-life. In anaerobic condition, ethanol (ethyl alcohol) and acetaldehyde are volatile compounds which are naturally produced from fruits and vegetables. This research was aim to investigate the effect of two different factors of treatments, namely the length of time of anaerobic stresses and different concentration of beeswax emulsion (o/w), as a coating material, on the quality and storage life of tomato fruits.The result showed that the effect of the both factors of treatments were significantly interacted on the deterioration of quality and storage life of tomato fruits. The length of anaerobic stress of 36 hrs combining with different concentration (1.5 and 3.0%) of beeswax emulsion as a coating material slowed the deterioration of quality and increased the storage life of tomato fruits. However, if the length of stress of 72 hrs combined with concentration of beeswax emulsion of 3%, the intensity of fruit damage increased.
Evaluasi Sistem Operasional dan Pemeliharaan Jaringan Irigasi pada Sistem Subak di Kawasan Warisan Budaya Dunia Catur Angga Batukau Ni Made Ayu Adi Suartiani; Sumiyati Sumiyati; I Wayan Tika
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 2 (2017): 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.2017.v05.i02.p02

Abstract

Subak is a traditional irrigation organization in Bali, one of whose functions is to manage irrigation. Operation and maintenance (O&P) of irrigation networks is an activity involving monitoring and cleaning irrigation networks in subak. The purpose of this research was to determine the physical performance of irrigation networks and the operation and maintenance (O&M) system of irrigation networks at three subak sites located in Catur Angga Batukau, one of the World Cultural Heritage sites. The methods used in this research were survey and observation methods. The collected data were assigned weighted values and analyzed. Subak was assessed using three criteria, namely Good = 3, Medium = 2, and Less = 1. System analysis was conducted using a fuzzy logic approach. The results of the analysis indicated that the performance of the irrigation network at Subak Jatiluwih was 2.49 (medium), Subak Tengkudak was 2.42 (medium), and Subak Rejasa was 2.50 (medium). From the three subak sites, the results showed that subaks in Catur Angga Batukau were in medium condition; therefore, there is a need to increase maintenance of the irrigation networks.
Kajian Proses Pengomposan Berbahan Baku Limbah Kotoran Sapi dan Kotoran Ayam Putu Citra Dewi; Yohanes Setiyo; I Gusti Ngurah Apriadi Aviantara
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 2 (2017): 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.2017.v05.i02.p03

Abstract

The use of compost as an organic fertilizer is an effort to implement a Low External Input Sustainable Agriculture (LEISA) system. The application of this system can (1) improve land health, (2) increase soil fertility, and (3) improve soil physical properties. The main problem in some SIMANTRI programs is that the composting process does not produce good-quality compost that meets SNI (Indonesian National Standard), mainly due to the use of raw materials that do not meet the standard. This study aims to determine the best composition of cow manure and chicken manure to produce compost in accordance with compost quality standards. The experiment consisted of five treatments: KS = cow manure, KA = chicken manure, KSKA 2:1 = cow manure:chicken manure (2:1), KSKA 3:1 = cow manure:chicken manure (3:1), and KSKA 4:1 = cow manure:chicken manure (4:1). The analysis of compost quality was conducted in the Soil Science Laboratory, Faculty of Agriculture, Udayana University. The composting process was carried out for 2 months, with composting temperatures ranging from 22°C to 53°C and pH ranging from 4 to 7. The physical form of the compost resembled brownish-black soil. Generally, the quality of the compost produced fulfilled SNI 19-7030-2004 standards, with the best result obtained from KSKA 2:1 (cow manure:chicken manure = 2:1). The final results were temperature 27.04°C, pH 6.85, carbon 11.14%, nitrogen 0.64%, and a C/N ratio of 15.82%.
Pengaruh Suhu dan Lama Penyangraian terhadap Karakteristik Fisik dan Mutu Sensori Kopi Arabika (Coffea arabica L) Ni Putu Ayu Purnamayanti; Ida Bagus Putu Gunadnya; Gede Arda
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 2 (2017): 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.2017.v05.i02.p04

Abstract

This research aimed to (1) determine the effects of roasting temperature and duration on the physical characteristics and sensory quality of Arabica coffee beans, and (2) determine the roasting temperature and duration that produce the best physical characteristics and sensory quality of Arabica coffee. The experiment was conducted using a factorial completely randomized design with two factors. The first factor was roasting temperature, consisting of three levels: 220°C, 235°C, and 250°C. The second factor was roasting duration, consisting of three levels: 14, 17, and 20 minutes. The variables observed in this study were yield, moisture content, color (CIELAB), acidity, and organoleptic properties. The results showed that roasting temperature and duration significantly affected yield, moisture content, color value, acidity level, aroma, taste, and color of Arabica roasted coffee. The roasting temperature of 235°C with a duration of 14 minutes was the best treatment, producing roasted coffee with the best physical characteristics and sensory quality, namely 82.5% yield, 1.08% (w/w) moisture content, 6.51 color value (Lightness), 5.84 acidity, aroma score of 3.6 (between moderate and like), taste score of 3.2 (between moderate and like), and color score of 3.6 (between moderate and like).
engaruh Perlakuan Uap Etanol terhadap Mutu dan Masa Simpan Bunga Kol (Brassica oleracea var. botrytis) pada Suhu Ruang Ni Ketut Sari Martini; I Made Supartha Utama; Ida Ayu Rina Pratiwi Pudja
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 2 (2017): 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.2017.v05.i02.p05

Abstract

The purpose of this research was to determine the effect of ethanol vapor and to identify the best treatment concentration to maintain quality and extend the shelf life of cauliflower. The study used a completely randomized design (CRD) with five levels of ethanol concentration: 0%, 5%, 10%, 15%, and 20%. Cauliflower florets used as controls were prepared without ethanol vapor treatment and stored at room temperature. The parameters measured included respiration rate, weight loss, color, vitamin C content, total dissolved solids, organoleptic properties (color, smell, and freshness), and intensity of damage. The results showed that the 10% ethanol treatment was the best concentration, as it reduced respiration rate and weight loss, maintained color, suppressed the decrease in vitamin C content, achieved the highest organoleptic scores for color, smell, and freshness, and reduced the intensity of damage in cauliflower.
Rancang Bangun Tempat Sampah Terintegrasi d engan Dinding Transparan d alam Upaya Pemilahan Sampah Made Ari Witarsa; Ida Ayu Gede Bintang Madrini; I Putu Gede Budisanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 1 (2023): 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.2023.v11.i01.p15

Abstract

Waste segregation is important for improving the environment's health, and society also protects natural resources. The purpose of this study is to design an integrated and transparent trash bin to sort waste and test the feasibility and effectiveness of the design. The design of the trash bin is based on functional and structural design. Questionnaire data were obtained from testing the feasibility and effectiveness design. The black color is used in this trash bin because it is identic to hummus. The frame construction is declared safe because it can support a garbage load of 75 kg per unit with frame tensile stress (σ) of 57.119 N/mm2, smaller than the allowable stress (σ) of the 88.630 N/mm2. The integrated and transparent trash dimensions were 120x40x138 cm, with three acrylic units, namely organic, inorganic, and glass bottles and cans. Additional parts are the cover of the three transparent units, the roof, the wheels, and the plastic waste storage section. This trash bin was declared feasible because the test results stated that they agreed with the design results score of 74% - 91%. The results of testing the effectiveness of the integrated and transparent design of the trash bin, that is, most of the respondents were categorized as fast and appropriate in sorting waste
Hubungan Antara Persentase Serangan Hama Tikus dengan Produktivitas LahanMelalui Pendekatan Foto Udara Prihandoni Widodo; I Made Anom S. Wijaya; Putu Gede Budisanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): 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.2018.v06.i02.p05

Abstract

Rats are one of the pests that can harm farmers, as rodent attacks can reduce yields and even cause crop failure. This study aimed to determine the relationship between the percentage of rodent pest attacks and rice field productivity. The research stages included data collection, image processing analysis, regression analysis, validation, and accuracy calculation. Field data were obtained through aerial photography and harvest measurements. Image processing was conducted using Adobe Photoshop CS6 and MATLAB 2013, while regression analysis was performed in Microsoft Excel 2013 using linear, quadratic, and cubic polynomial regressions. The cubic polynomial regression provided the best fit, resulting in the equation: y = -1.10⁻⁶x³ + 0.0003x² - 0.0218x + 0.6159 with a coefficient of determination (R²) of 0.9645, indicating that 96.45% of the variation in rice productivity can be explained by the percentage of rodent attacks. The error value of the equation was 8.17% for attack versus productivity.
Pengaruh Intensitas Musik Jazz Terhadap Pertumbuhan dan Produksi Tanaman Pakcoy (Brassica rapa L.) dalam Ruangan Elsafania Kristiani; I Made Anom Sutrisna Wijaya; I Gusti Ketut Arya Arthawan
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 1 (2023): 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.2023.v11.i01.p16

Abstract

The indoor cultivation (plant factory) is an indoor agriculture system that is developing due to the conversion of the farming field. sound vibrations can stimulate leaf stomata to open wider, wide stomata will absorb more water and CO2 to maximize photosynthesis. This research will focus on the influence of and find out the ideal intensity of jazz music in helping the growth and the production of bok choy. This reearch would use a completely randomized design through 5 groups of intensity used Dave Valentine & GRP (Oasis)’s song with a frequency of 86-21,189 Hz. The observed parameter included the plant’s height, canopy area, the number of leaves, SPAD Value, fresh weight, root length, and biomass. ANOVA results indicated that the intensity of jazz-influenced the height, chlorophyll amount, fresh weight, root length, and biomass. The 75-80 dB intensity showed the best result for the growth, in which the chlorophyll amount was 41,3 units andthe fresh weight of harvesting root was 1,1g and the crown and root’s biomass was 0,9 g and 0,11 grespectively. Furthermore, the 95-100 dB also showed the best result for the growth with 17,1 cm of height and 225,7 cm2 of the canopy area and the fresh weight of the crown production was 18,8 g and the root length was 27,8 cm. It can be concluded that the intensity of 75-80 dB and 95-100 dB have shown a good result.
Rancang Bangun Sistem Kontrol Kelembaban Udara Greenhouse Menggunakan PWM (Pulse Width Modulation) Wily Goldramijaya; Ni Nyoman Sulastri; I Made Anom S. Wijaya; I Putu Gede Budisanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 1 (2023): 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.2023.v11.i01.p17

Abstract

Control systems are widely applied in agriculture, such as using microcontrollers to control humidity in greenhouses. Lack of accuracy in conditioning the humidity in indoor farming affects plant growth and productivity, especially in microgreens. The humidity of the planting media indirectly affects the air humidity through evaporation. Therefore, a system is required to control and monitor air and planting media humidity. The purpose of this study was to design and build an air humidity control system using PWM (Pulse Width Modulation) in a greenhouse equipped with a monitoring and automatic irrigation system. The system control employed Arduino UNO ATmega328P as a microcontroller connected to the DHT22 sensor as an air humidity sensor, a capacitive soil moisture sensor as a humidity sensor for the planting media, relay to control misting and irrigation pump. The microcontroller was also connected to a driver as a DC fan control with PWM control, four DC fan as airflow suppliers and dehumidifiers, and LCD 16x2 as a monitoring system. The system used the air humidity setting points for microgreens which were entered manually through coding. The result of this research was a lean-to greenhouse prototype with a DHT22 sensor with air humidity error values of DHT22(1) 3.09% and DHT22(2) 3.34%. The system successfully read and displayed data and provided output with a response time of irrigation and misting systems of 78mS and 145mS, using a delay of 2 seconds. The PWM control of the DC fan was able to reduce and maintain the air humidity within the optimum range for microgreen growth by increasing as well as decreasing the DC fans’ RPM, which was based on its duty cycle value
Analisis Teknis Penggunaan Sumber Daya Air Tanah untuk Irigasi Tanaman Padi di Kabupaten Jembrana Angga Hendrayana S; Sumiyati Hendrayana S; Ida Ayu Gede Bintang Madrini
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): 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.2018.v06.i02.p06

Abstract

The Ground water is one of water resources that can be used to fullfill the needs of irrigation. With the limited availability of water, it is attempted by utilizing ground water using pump wells. The use of pump wells has not been maximal in fulfilling the irrigation water requirement so further research is needed. The objectives of this research are: (1) To know the technical use of groundwater resources for irrigation using pump wells, and (2) to analyze the ability of pump wells in subak samples in Jembrana Regency to irrigation water needs. This research uses descriptive analysis through survey method, taking data using primary and secondary data. Available discharge analysis is obtained through direct survey method of spaciousness and analysis of irrigation water needs carried out with the help of CROPWAT 8.0 software. Based on the irrigation water balance analysis, there is a reduction between the irrigation water demand and the availability of irrigation water to 3 subak samples. In Subak Sari Merta it is known that there is water shortage 2 periods that is the period of June I equal to 171.900 l / day, January I 149.700 l / day. Subak Brawantangi is known that there is water shortage as much as 4 periods that is the period of August I equal to 123.900 l / day , August II 99.200 l / day, March I 98,200 l / day, March II 78.200 l / day. Subak Tegal Badeng is known that there is water shortage for 8 periods that is June II period is 64.000 l / day, June III 178.500 l / day, August III 35.600, September I 35.100 l/day, September II 38.400 l/day, September III 32.900 l/ day, November I 48,400 l / day, November III 149.700 l / day. Water deficit occurs because in the period of the month is done so that the processing of irrigation water needs tend to be high. To be able to meet the needs of irrigation water needed for the processing of the soil, the Subak Sari is done by the turn system using irrigation water so that agricultural activities can run well.

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