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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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Analisis Spatio-Temporal Alih Fungsi Lahan Sawah Kabupaten Tabanan Ida Bagus Ketut Adyaguhyatriko; I Made Anom Sutrisna Wijaya; Sumiyati
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 1 (2024): 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.2024.v12.i01.p14

Abstract

Tabanan Regency is known as a rice barn in the Province of Bali, with rice fields covering 28% of its total area. According to data from the Badan Pusat Statistik (BPS), grain production in Tabanan Regency decreased by 19,181 tons between 2018 and 2022. One of the reasons for the decline in production is thought to be the conversion of paddy fields. This study aimed to determine the distribution and area of paddy field conversion and to analyze the trend of changes in paddy field function. The research stages included collecting Sentinel-2A image data, cloud masking, spatial analysis, and temporal analysis of land conversion from 2018 to 2022. Spatial analysis showed that land use consists of lakes, buildings, gardens, rice fields, and fields. Temporal analysis results indicate that paddy fields converted to buildings cover 1,209.794 ha, to gardens 1,380.275 ha, to fields 2,630.746 ha, while remaining paddy fields cover 1,687.179 ha. Land use changes from gardens to paddy fields cover 2,199.893 ha, and from fields to paddy fields 982.892 ha. It can be concluded that the largest trend in paddy field changes in Tabanan Regency from 2018 to 2022 is the conversion of paddy fields to fields, followed by gardens and buildings.
Korelasi Nilai SPAD dengan Intensitas Serangan Penyakit Blas Pada Umur Padi Yang Berbeda I Made Sudiarta; I Made Anom S. Wijaya; Ni Nyoman Sulastri
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 1 (2024): 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.2024.v12.i01.p16

Abstract

Rice is an important food crop that serves as the staple food for more than half of the world's population. Rice plant health is crucial in determining crop yields, and chlorophyll content is closely related to plant health, which affects rice production. A decline in plant health makes crops more susceptible to diseases, such as blast disease, which can be observed on the leaves by changes in greenness. SPAD (Soil Plant Analysis Development) is a simple tool used to measure chlorophyll content in plant leaves. This study aimed to (1) determine the relationship between SPAD values and the intensity of blast disease attacks, and (2) obtain a correlation value between SPAD and disease intensity. Data collection was conducted in Medium Village, Badung Regency, from rice aged 71 to 94 days after planting (HST). Measurements were taken diagonally across three rice fields, with five points per plot, nine clumps per point, and SPAD measured in three sections of each leaf (upper, middle, and lower). Disease intensity was determined from the distribution of spots on the leaves. The development of disease intensity and SPAD over time showed that high disease intensity corresponded with low SPAD values, while high SPAD values corresponded with low disease intensity. The results indicated a linear relationship between SPAD and disease intensity, with a correlation value of 0.8634 (86%), indicating a very strong correlation since it exceeds 0.75 (75%).
Rancang Bangun Pelontar Pakan Ikan Otomatis Berbasis Mikrokontroller Arduino Mega Pande Made Ngurah Bayu Abdi Bagaskara; I Putu Budi Sanjaya; I Wayan Tika
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 1 (2024): 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.2024.v12.i01.p17

Abstract

Fish cultivation holds profitable potential for businesses, especially in developing countries. Generally, cultivation requires regular care and attention, and the growth and reproduction of fish are significantly influenced by consistent feeding. By implementing an automated system for fish feeding, cultivators can simplify the process, eliminating the need to manually provide feed at set intervals. This study aims to design and create an automated fish feeder device based on the Arduino Mega microcontroller and to evaluate the performance of the system. The design incorporates components such as a keypad, LCD, HC-SR04 sensor, RTC sensor, buzzer, servo motor, DC motor, load cell, and relay to control and measure the feed's weight and regulate feeding frequency. The constructed system produces a prototype with dimensions of 37 cm in diameter, 40 cm in width, and 95 cm in height, while the feeder measures 15 cm in length, 15 cm in width, and 26 cm in height. The automated fish feeder system demonstrates effective performance, with the HC-SR04 sensor showing an error of 0.5%, the RTC sensor a time difference of 10 seconds from real time, and the load cell sensor an error of 1.75%. This system successfully assists users in providing automatic and scheduled fish feeding.
Pengaruh Durasi Kontak dan Jenis Arang Aktif terhadap Karakteristik Buah Alpukat Mentega Selama Penyimpanan: Effect of Contact Duration and Type of Active Charcoal on the Characteristics of Avocado Butter During Storage Angel Citra Ornella; Ni Luh Yulianti; I Gusti Ngurah Apriadi Aviantara
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 1 (2024): 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.2024.v12.i01.p18

Abstract

Activated charcoal is a solid containing microporous carbon that can be used as an adsorbent and effectively adsorbs KMnO₄ solutions. The adsorbent’s ability to bind ethylene is influenced by the contact duration, which is a diffusion process between the activated charcoal and KMnO₄ compounds, acting as a strong oxidizing agent to break down the ethylene double bond naturally produced by fruit. This study aims to determine the effect and the best combination of interactions between the types of activated charcoal and the contact duration with potassium permanganate (KMnO₄) on the characteristics of avocado butter during 10 days of storage. The study used a two-factor Randomized Block Design (RBD). The first factor was contact duration, consisting of 10, 20, and 30 minutes, while the second factor was the type of activated charcoal, consisting of coconut shell and bamboo. The results showed that the interaction between treatments had a significant effect on the shelf life and characteristics of avocado butter, including weight loss, texture, total dissolved solids, pH value, and fruit shelf life. The best treatment was obtained using coconut shell activated charcoal with a 20-minute contact duration with KMnO₄ (P2A1), resulting in the lowest weight loss of 1.39%, the highest texture value of 88.22 N, the lowest total dissolved solids of 6.80 °Brix, the highest pH value of 6.97, and the best overall avocado butter characteristics during storage.
Efektivitas Pemberian Mol Tape Singkong Sebagai Bioaktivator Terhadap Pengomposan Sampah Organik Pipid Ari Wibowo; Anastita Amaliya Fahrum; Retno Widiarini
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): 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.2023.v11.i02.p02

Abstract

Household activities generate piles of garbage in the Kelun Housing, Kartoharjo District has an estimated waste generation of 28 kg/day and 10,200 kg/year. Composting is the best method for treating household waste with cassava tape mole bio-activator. This study aimed to determine the difference in the effectiveness of cassava tape mole as a bio activator on the length of time for composting with variations in control doses of 15 ml and 30 ml. This study uses an experimental approach with a post-test with only one control group design. Parameters observed included physical indicators (temperature and humidity), nitrogen content test, and C-Organic. The results showed that the 30 ml dose of cassava tape mole was able to compost in 10 days with physical parameter indicators of temperature 40oC, humidity 50%, nitrogen content 12.57%, and C-Organic 15.49% (according to the 2011 Ministry of Agriculture standards).
Pengukuran Kinerja Sistem Rantai Pasok Sayuran untuk Memenuhi Permintaan Hotel di Bali Qurratu Zahrah Trinilam; I Wayan Widia; I Made Supartha Utama
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): 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.2023.v11.i02.p03

Abstract

The vegetable demand supply set by the hotel has standards in the form of quality, on-time, and quantity. Meanwhile, vegetable commodities have a perishable nature whose quality still depends on climate and weather. It is necessary to measure the performance of the vegetable supply chain system. This study aimed to determine the working mechanism and the achievement level of supply chain performance to meet the demand for hotels in Bali. The analysis uses the Food Supply Chain Network (FSCN) framework. The measuring achievement level of performance refers to the Supply Chain Operations Reference (SCOR) method. The object of this study involved the farmers in Bedugul. The results showed that the measuring achievement level of vegetable supply chain performance was in the Perfect Order Fulfillment (POF) matrix of vegetables obtained an average value of 98.2%, considered in the superior category. The Standard Fulfillment (SF) matrix had an average score of 100% (considered in the super categories). Vegetable Flexibility Matrix obtained an average value of 1.2 days (considered superior). The Order Fulfillment Cycle Time (OFCT) matrix had an average value of 0.7 days (considered superior). The Lead Time (LT) matrix also obtained an average value of 0.67 days (considered in the superior class). The Cash to Cash Cycle Time Matrix value of 13,80 days. The measuring achievement level of vegetable supply chain performance is in super performance or the best position.
Studi Nilai Tambah Komoditi Buah Stroberi pada Tiara Dewata Distribution Center Denpasar Putu Diah Sriagustini; I Gusti Ngurah Apriadi Aviantara; I Nyoman Sucipta
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): 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.2023.v11.i02.p04

Abstract

Strawberry (Fragaria x ananassa Duchesne) is one of the high-demand commodities in Bali. This study aims to determine how the strawberry supply chain works from farmers to supermarkets (Tiara Dewata Distribution Center Denpasar). This research consists of two stages, the observation of the working structure of the supply chain using descriptive-qualitative analysis and the added value of each supply point using the Hayami method. This study used total sampling (to determine the sample at the collector and supermarket level) and purposive sampling (to determine the farmer level). The results showed that the flow pattern of the strawberry supply chain consisted of Pattern I (farmers selling to collectors and collectors selling to supermarkets) and Pattern II (farmers selling directly to supermarkets). The biggest added value by the supermarket (Rp. 39,184 per kilogram). Farmers who sell to collectors provide the added value of Rp. 17,989 per kilogram. Farmers who sell to the supermarket provide the added value of Rp. 20,155 per kilogram. The smallest added value by collectors is Rp. 4,745 per kilogram.
Analisis Strategi Pemasaran dengan Metode SWOT dan QSPM Pada PT Wedhatama Sukses Makmur, Singaraja, Bali Helen Wahyuni Sitorus; I Gusti Ngurah Apriadi Aviantara; Ida Ayu Rina Pratiwi Pudja
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): 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.2023.v11.i02.p05

Abstract

PT Wedhatama Sukses Makmur is an organic fertilizer company based on animal manure (guano). This company has not used the SWOT and QSPM methods in its marketing strategy. It can be seen in bookkeeping problems and ineffective marketing performance, resulting in sales targets not being achieved. This study aims to determine alternative strategies formulated through the factors that are the determinants in marketing the products produced by the company using the SWOT and QSPM methods. The results showed that PT Wedhatama Sukses Makmur had 14 internal factors (nine strength factors and five weakness factors) and 11 external factors (seven opportunity factors and four threat factors). The total IFE matrix is 3,06, the EFE matrix is 3,51, and the IE matrix is the company's position in quadrant I (Growth and Build). The results of the SWOT analysis show that there are eight alternative strategies. The priority strategy from the QSPM analysis is to improve the management system, improve the company's technical capabilities, and increase the number of human resources (especially in the marketing field) to achieve sales targets with a total TAS score of 7,78.
Karakteristik Fisik Kemasan Bioplastik dari Pati Singkong dan Karagenan dengan Variasi Durasi Gelatinisasi dan Jenis Plasticizer Komang Sri Diah Nirmala Dewi; Ni Luh Yulianti; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): 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.2023.v11.i02.p06

Abstract

The physical characteristics of bioplastic packaging can be influenced by variations in the duration of gelatinization and the type of plasticizer. This research was conducted to obtain the effect of variations in the duration of gelatinization and the type of plasticizer on the physical characteristics of bioplastic packaging films and to obtain the treatment that produces the best physical characteristics of the packaging. The experimental design used was a Randomized Block Design (RAK) with the first factor being the treatment, namely, the duration of gelatinization (D) which consisted of 3 levels of duration: 3 minutes, 5 minutes, and 7 minutes, and the second factor was the type of plasticizer (P) consisting of 3 types: 2 g of castor oil, 0.5 g of stearic acid and 1.5 g of glycerol with three repetitions resulting in 27 experimental units. The data obtained were analyzed using variance and if the treatment had an effect on the observed parameters, it was continued with Duncan's test. The results showed that the variation in the duration of gelatinization and the type of plasticizer of the bioplastic packaging film had a significant effect on the value of tensile strength, elongation at break, elasticity, water absorption, on and thickness of the bioplastic packaging film. The treatment of gelatinization duration of 7 minutes and the type of stearic acid plasticizer produced a bioplastic packaging film with the best characteristics, namely the tensile strength value of 18.28 MPa, elongation at break 7.34%, elasticity 255.52 MPa, water absorption 0.8%, and a thickness of 0.25 mm.
Pengaruh Cara Mematikan dan Lama Waktu Post-Mortem terhadap Mutu Kesegaran Filet Ikan Mujair (Oreochromis mossambicus) Oliver Owen; I Wayan Widia; Mentari Kinasih
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): 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.2023.v11.i02.p07

Abstract

Tilapia fish filet is one of the protein-rich foods needed by the body. The freshness quality of the tilapia fish filet is affected by the quality of the raw materials and the method of killing the fish. This study aimed to determine the effect of the lethal technique and the length of post-mortem time on the freshness of tilapia fish (Oreochromis mossambicus) filets. This study used a factorial-CRD trial (Completely Randomized Design) for two factors. The first factor is how to kill the fish (floating death, cold temperature, and ikejime technique). The second factor was the length of post-mortem time (0, 2, 4, 6, 8, 10, 12, and 14 hours). Each treatment was repeated by 2 times so that 48 samples were obtained from 24 treatment combinations. The observed parameters are the rigor index, organoleptic freshness, pH, and protein content. Observational data were processed by Analysis of Variance (ANOVA), Duncan test, and Kruskal-Wallis test. The results of this study indicate that the method of shutting down and the length of time post-mortem significantly affect several parameters of the freshness quality of tilapia fish fillets. The best combination of treatment is lethal with the ikejime technique with a post-mortem time of 0 hours which has a pH of 6.94, protein content of 26.65% and fish meat organoleptic score of 8.80, and fish meat texture score of 8.95.

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