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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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KAJIAN JARAK LEGOWO TERHADAP IKLIM MIKRO PADA BUDIDAYA PADI SISTEMJAJAR LEGOWO I Putu Hendra; Sumiyati Sumiyati; I Wayan Tika
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 2 No 1 (2014): 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.2014.v02.i01.p01

Abstract

This study was conducted to determine the legowo distance studies in rice farming systems legowo row. This study is also expected to get the optimal distance legowo on legowo row planting system to improve the productivity of rice in Subak system. This research is divided into 5 treatment, the treatment in accordance with local farmers distance of 28 cm ; legowo 6:1 with wide legowo 1.25 x 28 cm ; legowo 6:1 with wide legowo 1.50 x 28 cm ; legowo 6:1 with wide legowo 1.75 x 28 cm ; legowo 6:1 with wide legowo 2 x 28 cm. This study was repeated 3 times. Parameters observed in this study ware : microclimate include: ambient temperature (T) , relative humidity (RH ), solar intensity (I). The production of a broad unity. In addition, the observed range of roots. The results suggest the application of legowo 6:1 cropping systems with a wide range legewo difference in each treatment shown to affect the relative humidity (RH), solar radiation, and air temperature. The results were obtained with a wide range of treatment legowo 1.75 x 28 cm is the best treatment with the highest yield among other treatment that is equal to 7.41 ton / ha.
PENGARUH TEKNIK BUDIDAYA SRI (System of Rice Intensification) DAN LEGOWO TERHADAP IKLIM MIKRO DAN PRODUKTIVITAS PADI KETAN I Putu Sanjaya; I Wayan Tika; Sumiyati Sumiyati
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 2 No 1 (2014): 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.2014.v02.i01.p02

Abstract

This study was conducted to determine the effect of planting System of Rice Intensification (SRI) and legowo 6:1 row planting system of the microclimate and the rice plants productivity. This study was divided into 4 treatments with 3 replications, ie treatments conventional techniques, SRI method of planting, application of legowo 6:1 row planting system, and combination of SRI planting method and legowo 6:1 row planting system. The results showed the application of SRI planting method and legowo 6:1 row planting system not affecting the microclimate conditions, but affecting the productivity of rice plants. The results also showed that treatment K3 applying SRI methods combined with legowo 6:1 row planting system is the best treatment compared with other treatments.
PENGARUH SUHU DAN WAKTU BLANCHING TERHADAP KARAKTERISTIK FISIK DAN KIMIA PRODUK REBUNG BAMBU TABAH KERING (Gigantochloa nigrociliata (Buese) Kurz) I Made Fajar; Diah Kencana; Gede Arda
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 2 No 1 (2014): 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.2014.v02.i01.p03

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh suhu dan waktu blanching terhadap karakteristik fisik dan kimia rebung bambu Tabah kering. Rancangan percobaan yang digunakan yaitu Rancangan Acak Lengkap faktorial dengan dua faktor. Faktor pertama yaitu suhu blanching terdiri dari 25oC, 50oC, 60oC dan 70oC. Faktor kedua yaitu waktu blanching terdiri dari 10, 15 dan 20 menit. Hasil penelitian menunjukkan bahwa interaksi suhu dengan waktu blanching berpengaruh terhadap kadar air, vitamin C dan protein rebung bambu Tabah kering. Perlakuan suhu blanching 50oC dengan waktu blanching 10 menit merupakan perlakuan terbaik dengan kadar air 9,33% bb (basis basah), daya rehidrasi 259,07%, kadar abu 14,05% bk (basis kering), kadar lemak 8,29% bk, vitamin C 26,63 mg/100g dan protein 31,81% bk.
MODIFIKASI MESIN PENCETAK PAKAN BUDIDAYA LELE BERBENTUK PELLET DENGAN KEBUTUHAN DAYA RENDAH Yudha Kristyanto Leksono; Yohanes Setiyo; I Wayan Tika
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 2 No 1 (2014): 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.2014.v02.i01.p04

Abstract

The aim of this study were to modify the machines with a small power requirements for printing fish feed pellets and to test the performance of the machine. The modified engine was a machine design by Giyarto result , modifications was on the power requirements . Stages of modification were calculate the strength of each major component of the engine , and followed by selecting the machine components. The main components of the machine are : V-belt, pulley, cylinder, cutting knife, pressing pellets and an electric motor. Engine performance testing conducted with 7 kg of dough pellets and the test was repeated 5 times. Parameters measured in this study were: machine capacity, efficiency and quality of the work machine. The results showed that the pellet-making machine modified increased in performance. The machine indicated the performance efficiency of an average 87.53 %
STUDI PENGARUH JENIS KEMASAN DAN KETEBALAN PLASTIK TERHADAP KARAKTERISTIK MUTU REBUNG BAMBU TABAH (Gigantochloa nigrociliata KURZ) KERING Yustina Anggreny Lobo; Pande Ketut Diah Kencana; Gede Arda
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 2 No 1 (2014): 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.2014.v02.i01.p05

Abstract

This study was conducted to determine the effect of the type of plastic packaging with different thickness of the characteristics of dried bamboo shoots (Gigantochloa nigociliata KURZ). This study is also expected to increase the shelf life of bamboo shoots by using proper plastic packaging. The design used was a randomized block design with two factors. The first factor is the type of plastic with two different thicknesses with details P1: dried bamboo shoots packed with a thickness of 0.04 mm Polypropylene plastic, P2: dried bamboo shoots packed with a thickness of 0.08 mm PP plastic, P3: dried bamboo shoots packed with PE plastic thickness 0.04 mm, P4: bamboo shoots packed with a thickness of 0.08 mm Polyethylene plastic. And the second factor is the storage time with details of H1: 10 days, H2: 20 days, H3: 30 days, H4: 40 days. The study was repeated three times. Parameters observed in this study include analysis of weight, water content, texture and water absorption. The results of this study indicated that the type of plastic packaging, thickness and storage time gave significant effect on characteristics of dried bamboo shoots. The polypropylene plastic with a thickness of 0,08 mm is the best type of plastic packaging, because it has the lowest water content and lowest weight during 40 days of storage.
Pengaruh Pelapisan Nano-Emulsi Minyak Wijen dan Sereh Terhadap Karakteristik Fisiko-Kimia dan Sensoris Pascapanen Pisang Cavendish (Musa Acuminata, L.) I Kadek Krisna Rupawan; I Made Supartha Utama; I Wayan Widia; Ni Made Defy Janurianti
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.p025

Abstract

Cavendish banana fruit is a climatic fruit characterised by high ethylene production. The high respiration rate triggers the postharvest ripening process which results in the rapid physiological deterioration of the fruit. The objectiv e of this study was to determine the effect of sesame oil and lemongrass oil nano - emulsions on the postharvest physico - chemical and sensory characteristics of Cavendish banana fruit. The research design used was a completely randomised design (CRD) with tw o treatment factors. First, sesame oil concentration factor (W) consisting of 0%, 0.5%, and 1% concentrations, second, lemongrass oil treatment factor (S) consisting of 0%, 0.5%, 1%, and 1.5% concentrations with three replications of the treatment so that there were 36 samples. Physico - chemical parameters observed included weight loss, fruit hardness, colour difference, total soluble solids (TPT), and total acid, and sensory parameters included sweetness and aroma of the fruit. The results showed that sesam e oil and lemongrass oil nano - emulsion coating significantly affected the weight loss, fruit hardness, colour difference, TPT, total acid, and sensory values of Cavendish banana fruit. Fruit coating with 1% sesame oil and 1% lemongrass oil concentration (W 2S2) was the best concentration in maintaining weight loss, fruit hardness, colour difference, and total acid with average values of weight loss (25.04%), fruit hardness (10.47 kg/cm2), colour difference (58.8%), total acid (4.67%). The treatment with a mi xture of 0.5% sesame oil and 1% lemongrass oil (W1S2) was the best combination in maintaining the TPT value with an average value of 23.50% during 12 days storage and the control received the highest score in the sensory test on day 9 with an average value of 5.
Analisis Hubungan Nilai SPAD Dengan Nilai Indeks Vegetasi pada Tanaman Padi yang Terserang Penyakit BlasMenggunakan Citra Multispektral Gede Suyoga Arista Putra; I Made Anom Sutrisna Wijaya; Sumiyati
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.p026

Abstract

Blast disease is a disease that attacks the leaves of rice plants. Blast disease attacks can affect chlorophyll and the health of rice plants. Leaf chlorophyll can be estimated using a SPAD chlorophyll meter to obtain the SPAD value. The vegetation index v alue has a strong relationship with chlorophyll. This study aims to obtain the relationship between SPAD value and Vegetation Index value in rice plants affected by blast disease using multispectral imagery and determine the level of correlation between SP AD value and Vegetation Index value in rice plants affected by blast disease using multispectral imagery. SPAD value sampling was carried out on 3 rice field plots, each plot was taken 5 points diagonally, and each point was taken 9 rice paddy clumps. Next , multispectral image acquisition using the DJI Phantom 4 Drone with multispectral cameras at altitudes of 15 m, 30 m, and 45 m. The image is then mosaiced using Agisoft Metashape, then normalized with Photoshop. Next, the vegetation index analysis of NDVI , CI G , and SAVI using QGIS 3.16, followed by regression analysis between the SPAD value and the vegetation index value. The results of the analysis showed that the three vegetation indices at various altitudes produced a linear relationship and the degree of correlation ranged from strong to very strong. Strong correlation rate on NDVI 45 m (65.4%), SAVI 45 m (63.1%), and very strong correlation on NDVI index 15 m (94.2%), 30 m (79.5%), CI G 15 m (80.5%), 30 m (84.8%), 45 m (82.5%), and SAVI 15 m (80.5%), 30 m (78%). It can be concluded that the NDVI vegetation index with a height of 15 m provides the strongest correlation value
Karakterisasi Kualitas Pupuk Organik Cair Dari Fermentasi Limbah Sayuran Dan Buah Pasar Tradisional Susumbolan Kabupaten Tolitoli Salawati; Tony; Siti Fatimah; Sodikun
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 14 No 2 (2026): INPRESS
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

Abstract

The increasing volume of organic waste in traditional markets, particularly from vegetable and fruit scraps, necessitates the implementation of efficient waste management technologies to transform it into valuable products. This study aims to characterize the chemical quality of Liquid Organic Fertilizer (LOF) produced from the fermentation of vegetable and fruit waste at Susumbolan Traditional Market, Tolitoli Regency. The research employed a Completely Randomized Design (CRD) with four treatments and three replications: P1 (100% vegetable waste), P2 (100% fruit waste), P3 (a mixture of 50% vegetable waste and 50% fruit waste), and P4 (a mixture of 45% vegetable waste, 45% fruit waste, and 10% biochar). Data were analyzed using Analysis of Variance (ANOVA), followed by Duncan’s Multiple Range Test (DMRT) at the 5% level. The results indicate that formulation variations significantly affected pH, Nitrogen (N) content, and Phosphorus (P) content, but did not have a significant effect on Potassium (K) content. The P3 treatment yielded the highest Nitrogen content (1.64%), while the highest Phosphorus content (0.23%) was observed in P4. The addition of biochar in the P4 treatment was effective in stabilizing the pH to 6.17, thus meeting the pH quality standard threshold for LOF according to the Decree of the Minister of Agriculture Number 261/KPTS/SR.310/M/4/2019. However, the macronutrient content (N, P, and K) in all treatments remained below the minimum national standard thresholds. Although a 10% biochar formulation proved effective as an acidity neutralizing agent (pH buffer), further optimization through mineral fortification is required to ensure the macronutrient content reaches the required technical standards.
Studi Variasi Suhu dan Lama Pemanasan dalam Proses Delignifikasi Selulosa Daun Kelapa sebagai Penguat Kertas Kemasan: Study of Temperature Variations and Heating Duration in the Delignification Process of Coconut Leaf Cellulose as a Reinforcement for Packaging Paper Ni Komang Ayu Tasia Antarini Tasia; Ni Luh Yulianti; I Made Anom Sutrisna Wijaya; Dewa Ayu Septia Difayani; Dewanggi Aiswara Virani
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 14 No 2 (2026): INPRESS
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.2026.v14.i02.p00

Abstract

Daun kelapa berpotensi sebagai sumber selulosa alternatif untuk bahan penguat kertas kemasan. Proses delignifikasi diperlukan untuk menghilangkan lignin sehingga diperoleh selulosa dengan kualitas yang murni, Selulosa hasil delignifikasi digunakan sebagai bahan penguat kertas kemasan. Penelitian ini bertujuan untuk mengetahui pengaruh variasi suhu dan lama pemanasan proses delignifikasi selulosa  terhadap karakteristik kertas kemasan yang dihasilkan serta menentukan perlakuan yang menghasilkan karakteristik kertas kemasan daur ulang terbaik. Penelitian ini menggunakan rancangan acak kelompok (RAK) dua faktorial. Faktor pertama yaitu 2 level suhu delignifikasi (S) 85°C dan 100°C, faktor kedua yaitu waktu pemanasan delignifikasi (W) 3 taraf waktu 30, 45 dan 60 menit. Data yang berpengaruh signifikan terhadap parameter dianalisis menggunakan sidik ragam Uji Duncan, penentuan nilai terbaik dari semua parameter menggunakan uji indeks efektivitas dan dibandingkan dengan nilai kontrol menggunakan uji t-test. Pada hasil penelitian menunjukkan variasi suhu dan lama pemanasan memberikan pengaruh signifikan terhadap karakteristik kertas kemasan yang dihasilkan. Perlakuan terbaik delignifikasi selulosa suhu pemanasan 85°C dan lama pemanasan 30 menit menunjukkan peningkatan karakteristik kertas kemasan pada semua parameter yang diamati yaitu  gramatur 198.57 g/m2, ketebalan 0.42 mm, densitas 480.64 kg/m3, kuat tarik 4493.82 kN/m2, ketahanan sobek 2.43 N dan water vapor transmission rate (WVTR) 43.40 gram/m2/hari.
BEBAN KERJA DAN KELELAHAN PETANI ANGGUR PADA PENGGEMBURAN TANAH DENGAN CANGKUL TIPE MATA BERBEDA Kadek Asih Yuliantini; I Gusti Ngurah Apriadi Aviantara; Ida Ayu Gede Bintang Madrini; I Nyoman Sucipta
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 14 No 2 (2026): INPRESS
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

Abstract

Desa Banyupoh, Kabupaten Buleleng, merupakan wilayah agraris dengan komoditas unggulan anggur hitam yang proses budidayanya masih banyak dilakukan secara manual, terutama pada tahap penggemburan tanah. Aktivitas ini berpotensi menimbulkan beban kerja fisik dan mental yang tinggi serta meningkatkan risiko kelelahan petani akibat penggunaan alat kerja yang kurang ergonomis. Penelitian ini bertujuan menganalisis perbedaan beban kerja fisik, beban kerja mental, dan tingkat kelelahan petani anggur pada kegiatan penggemburan tanah secara manual menggunakan cangkul tipe mata datar dan cangkul tipe mata garpu di Desa Banyupoh, Bali. Penelitian menggunakan pendekatan deskriptif kuantitatif dengan desain quasi-experiment posttest-only control group design. Sebanyak 30 petani dijadikan responden dan dibagi menjadi dua kelompok berdasarkan tipe cangkul yang digunakan. Beban kerja fisik diukur menggunakan Cardiovascular Load (%CVL), beban kerja mental menggunakan NASA–Task Load Index (NASA-TLX), dan tingkat kelelahan menggunakan Fatigue Severity Scale (FSS). Hasil penelitian menunjukkan bahwa cangkul tipe mata datar menghasilkan beban kerja fisik, beban kerja mental, dan tingkat kelelahan yang lebih tinggi dibandingkan cangkul tipe mata garpu, dengan nilai rata-rata %CVL 47,59% dan 36,67%, skor NASA-TLX 71,16 dan 67,02, serta skor FSS 49,1 dan 38,9. Uji independent samples t-test menunjukkan perbedaan yang signifikan pada ketiga variabel (p < 0,05). Penelitian ini menegaskan pentingnya penggunaan alat pertanian yang ergonomis untuk menurunkan beban kerja dan kelelahan serta meningkatkan kesehatan dan produktivitas petani.

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