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Pengolahan Tanah Menggunakan Bajak Singkal Lebih Sedikit Memerlukan Air Irigasi daripada Bajak Rotary

Budi Artawan, Gusti Bagus Alit, Tika, I Wayan, Sucipta, I N.

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 1 (2019): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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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 2096.33 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 as 17.69 l / dt .   Keywords: irrigation water requirement, soil tillage, chisel plow, rotary plow.

Dampak Penggunaan Naungan Plastik Terhadap Profil Iklim Mikro Pada Budidaya Kentang Bibit (Solanum Tuberosum L) Varietas Granola Kelompok G0

Ardika, I Putu Tantra, Setiyo, Yohanes, ., Sumiyati

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 1 (2019): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

Tujuan dari penelitian ini adalah untuk (1) mengetahui profil iklim mikro pada naungan plastik dengan warna plastik berbeda dan (2) mengetahui warna plastik untuk naungan yang sesuai terhadap peningkatan kualitas kentang varietas granola G0. Penelitian ini menggunakan rancangan acak lengkap masing-masing terdiri dari empat perlakuan dan tiga ulangan, yaitu perlakuan tanpa naungan, perlakuan naungan plastik warna bening, perlakuan naungan plastik warna biru dan perlakuan naungan plastik warna merah. Untuk pengukuran iklim mikro digunakan alat temperature and humidity meter dan light meter. Pengukuran iklim mikro dilakukan seminggu sekali yaitu setiap pukul 12.00 WITA. Analisis data intensitas cahaya matahari dilakukan membuat gambar dalam naungan menggunakan metose garis kontur, sedangkan data hasil pengukuran suhu udara, suhu tanah, kelembaban dan variabel kualitas yang diperoleh diolah dengan menggunakan program komputer Microsoft Excel untuk memperoleh grafik, lalu dianalisis dengan metode deskiptif, dan dilanjutkan analisis menggunakan analisis sidik ragam (ANOVA). Hasil penelitian intensitas cahaya matahari menunjukkan kontur profil saat tanaman berusia 2 minggu profil sebaran naungan warna bening 975-1025 lux, naungan warna merah 675-725 lux, naungan warna biru 575-595 lux, sedangkan pada tanaman berusia 8 minggu naungan warna bening 100-800 lux, naungan warna merah 100-700 lux, dan naungan warna biru 100-400 lux. Rata-rata suhu udara tanpa naungan 26,20C, naungan bening 26,80C, naungan merah 26,60C, naungan biru 26,20C. Rata-rata kelembaban tanpa naungan 76%, naungan bening 77%, naungan merah 78%, naungan biru 79%. Perlakuan naungan bening menunjukkan kualitas terbaik yaitu rata-rata 4,4 umbi per pohon, rata-rata berat 257,6 gram per pohon dan rata-rata 1 umbi per pohon. Kata kunci: naungan plastik, kentang varietas granola G0, iklim mikro. 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 obtain 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 26,20C, clear shade 26,80C, red shade 26,60C, blue shade 26,20C, 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.   Keyword : plastic sharps, potatoes varietas granola G0, microclimate  

Peningkatan Gelombang Elektromagnetik Menurunkan Laju Perkecambahan Padi Beras Merah Cenana Jatiluwih (Oryza Sativa Var Barac Cenana)

Nugraha, Viqtor Arya, Wijaya, I Made Anom S., Widia, I Wayan

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

This study aims to find out the modeling of electromagnetic fields against local rice varieties and to determine the electromagnetic field and the proper immersion time to produce the best rice germination. The experimental experiment used is a factorial circuit consisting of two factors. The first factor is the strength of the electromagnetic field of 0 mT, 2 mT, 3 mT and 4 mT, while the second factor is the duration of immersion consisting of 48, 64, and 96 hours. The data obtained were analyzed by verbal examination, then continued with duncan test if treatment had real effect. The results showed that the stronger electromagnetic exposure with certain voltage resulted in a decrease in the percentage of seed germination of local varieties of rice while for the immersion treatment, the longer the seed immersion resulted in increased percentage of germination of local varieties of rice. The best germination was produced at exposure of 2 mT voltage electromagnetic field with 96 hours of immersion time for red rice varieties.  

Hubungan Antara Persentase Serangan Hama Tikus dengan Produktivitas Lahan Melalui Pendekatan Foto Udara

Widodo, Prihandoni, Wijaya, I Made Anom S., Budisanjaya, I Putu Gede

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

Rats pest is one of the any pests that can harm the farmers. Pest rodent attacks can decrease yields even affect to crop failures. The percentage of rice fields attack will affect the productivity inversed. The bigger percentage of rodent pests, will make the lower rice fields productivity. Therefore, this study aims to determine the relationship between percentage of pest roddents attacks with rice field productivity. Stages that must be passed in this research, among others, data retrieval, image processing analysis, regression analysis, validation and ending with the calculation of accuracy. Field data taking includes the acquisition of aerial photography and measurement of the harvest. Analysis of image processing using Adobe Photoshop CS6 software support and Matlab 2013 software. Regression analysis using Microsoft Excel 2013 software assistance using three types of regression analysis, among others: linear regression, quadratic regression, rank polynomial regression 3. Polynomial regression equation of rank 3 yields the best equation. The polynomial equation of rank 3 obtained as follows y = -1.10-6x3 + 0.0003x2 - 0,0218x + 0,6159 with a coefficient of determination equal to 0,9645 or can also be interpreted 96,45% variation of dependent variable can be explained by the free variable . The error value of the equation is 8.17% percentage of attack productivity.

Analisis Teknis Penggunaan Sumber Daya air Tanah Untuk Irigasi Tanaman Padi di Kabupaten Jembrana

Hendrayana S, Angga, ., Sumiyati, Madrini, Ida Ayu Gede Bintang

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

Abstrak Air tanah merupakan salah satu sumber daya air yang dapat digunakan untuk memenuhi kebutuhan irigasi. Dengan keterbatasan ketersediaan air, maka diupayakan dengan memanfaatkan air tanah dengan menggunakan sumur pompa. Penggunaan sumur pompa belum maksimal dalam memenuhi kebutuhan air irigasi maka diperlukan penelitian lebih lanjut. Tujuan dari penelitian ini adalah : (1) mengetahui teknis penggunaan sumber daya air tanah untuk irigasi menggunakan sumur pompa, dan (2) menganalisis kemampuan sumur pompa pada subak sampel di Kabupaten Jembrana terhadap kebutuhan air irigasi. Penelitian ini menggunakan analisis deskriptif kuantitatif melalui metode survey. Data ini diperoleh  menggunakan data primer dan sekunder. Data debit tersedia diperoleh melalui metode survei  langsung ke lapangan dan perhitungan kebutuhan air irigasi dilakukan dengan bantuan software CROPWAT 8.0. Berdasarkan analisis neraca air irigasi dari selisih antara kebutuhan air irigasi dengan ketersediaan air irigasi terhadap 3 sampel subak, diperoleh hasil pada Subak Sari Merta terjadi kekurangan air pada selama 2 periode yaitu periode Juni I sebesar 171.900  l/hari, Januari I 149.700 l/hari,  pada Subak Brawantangi terjadi kekurangan air sebanyak 4 periode yaitu periode Agustus  I sebesar 123.900 l/hari, Agustus II 99.200 l/hari, Maret I 98.000 l/hari, Maret II 78.200, dan pada Subak Tegal Badeng terjadi kekurangan air sebanyak 8 periode yaitu periode Juni II sebesar 64.600 l/hari, Juni III 178.500 l/hari, Agustus III 35.600 l/hari, September I 35.100 l/hari, September II 38.400 l/hari, September III 32.900 l/hari, November I 48.400 l/hari, November III 149.700 l/hari. Defisit air terjadi karena pada periode bulan tersebut dilakukan pengolahan tanah sehingga kebutuhan air irigasi cenderung tinggi. Untuk dapat memenuhi kebutuhan air irigasi yang diperlukan untuk pengolahan tanah, pada 3 sampel subak dilakukan sistem giliran memakai air irigasi supaya aktifitas pertanian dapat berjalan baik.   Kata Kunci: Sumur Pompa, Air Tanah, Kebutuhan Air, Ketersediaan Air, Irigasi.   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. Keywords: Pump Well, Ground Water, Water Requirement, Water Availability, Irrigation.

Analisa nilai tambah produk hortikultura selada (lactuca sativa l) di pasar modern dengan proses penanganan pascapanen

Sihite, Enike Windari, Aviantara, I G.N Apriadi, Yulianti, Ni Luh

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

Penelitian ini bertujuan (1) mengetahui penanganan pascapanen yang dilakukan pasar modern sampai selada dipasarkan; (2) menentukan nilai tambah dengan penanganan pascapanen dihitung dengan profit margin di pasar modern. Penelitian ini dilakukan pada awal bulan September sampai akhir Oktober 2016, metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan pengamatan langsung menggunakan kuisioner untuk mengumpulkan data. Penelitian dilakukan disalah satu pasar modern dan pasar tradisional untuk membandingkan perlakuan penanganan pascapanen terhadap selada. Penanganan pascapanen merupakan salah satu upaya suatu perusahaan untuk memberikan nilai tambah terhadap selada. Pasar modern dengan tingkat penjualan semua jenis selada sebanyak 88,99 kg dapat mengembalikan biaya penanganan pascapanen. Sedangkan pasar tradisional harus menjual selada sebanyak 121,55 kg untuk mengembalikan modal awal. Penanganan pascapanen sangatlah penting untuk mempertahankan umur simpan selada. Selain mempertahankan umur simpan selada, pasar modern memperoleh keuntungan lebih dan mendapat perhatian lebih dari konsumen dibandingkan pasar tradisional. Hasil penelitian ini juga memperoleh profit margin yang berbeda. Profit margin yang diperoleh pasar modern adalah sebesar 129,87% sedangkan profit margin yang diperoleh dari pasar tradisional adalah sebesar 25,3%. Profit margin yang diperoleh pasar modern sebesar 129,87% menunjukkan bahwa rasio penjualan yang tinggi merupakan kemampuan perusahaan menghasilkan laba yang tinggi pada tingkat penjualan tertentu, sebaliknya jika rasionya rendah menandakan penjualan yang terlalu rendah untuk tingkat biaya tertentu, atau biaya yang terlalu tinggi untuk tingkat penjualan tertentu. This study aims to (1) find out postharvest handling conducted by modern markets until the lettuce is marketed; (2) determining the added value with postharvest handling calculated by profit margin in the modern market. This research was conducted in early September until the end of October 2016, the method used in this research is descriptive method with direct observation using questionnaires to collect data. The study was conducted in one modern market and traditional markets to compare postharvest handling treatment of lettuce. Postharvest handling is one of the efforts of a company to provide added value to the lettuce. The modern market with the selling rate of all types of lettuce as much as 88.99 kg can restore the cost of postharvest handling. While the traditional market must sell as much as 121.55 kg lettuce to restore the initial capital. Postharvest handling is very important to maintain shelf life of lettuce. In addition to maintaining shelf life of lettuce, the modern market gains more and gets more attention from consumers than traditional markets. The results of this study also obtained a different profit margin. Profit margin obtained by modern market is 129,87% while profit margin obtained from traditional market is 25,3%. The profit margin obtained by the modern market of 129.87% indicates that a high sales ratio is a company's ability to generate high profits at a certain level of sales, on the contrary if the low ratio signifies sales that are too low for a certain level of cost, or cost too high for the level specific sales.

Pemahaman Petani Tentang Budidaya Kopi Arabika dan Pengaruhnya Terhadap Produktivitas Hasil Panen

Suara, Komang Agus, Widia, I Wayan, Gunadnya, Ida Bagus Putu

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

The aims of this study were to determine level of understanding of farmers on coffee cultivation and its effect on productivity. Observed cultivation aspect include land preparation, light intensity regulator, planting techniques, plant breeding, fertilizer application, plant pest control, plant rejuvenation and coffee harvesting aspect. This research involved 45 respondents selected by using simple random sampling from coffee member farmers of MPIG Kintamani Bali. The results of the indicator interviews of the highest value research variables obtained plant rejuvenation and lowest coffee harvest. The results of data analysis with Confirmatory Factor Analysis (CFA) and Multiple Regression Analysis (MRA) showed that there were three relevant cultivation factors contributing to the achievement of crop productivity, namely land preparation, planting techniques and plant rejuvenation. Land preparation and planting techniques gave a positive effect on productivity of arabica coffee but, plant rejuvenation gave negatively effect. Planting techniques have the most dominant influence on the productivity of arabica coffee crops. It was expected that the production of arabica coffee harvest in Bali (0.5 ton / Ha) of coffee could be improved the national coffee production.   Keywords: arabica coffee, commonity protection geographical indication, cultivation, CFA, MRA

Musik Gamelan Bali Meningkatkan Pertumbuhan dan Produktivitas Tanaman Sawi Pakcoy (Brassica rafa L.)

Gautama, Dewa Putu Yoga, Wijaya, I Made Anom S., Widia, I Wayan

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

High frequency sound waves can stimulate the mouth of leaf (stomata) remains opened.The stomata remains open leading to efficient absorption of fertilizer. The purposes of this research were (1) to find out the effect of Balinese instrument music on the growth and productivity of pakcoy mustard plant and (2) to determine the type of Balinese instrument music that gives the best growth and productivity of mustard pakcoy. The treatment of this research was the application of Balinese instrument music with different musical nuances for 3 hours. Treatment 1 was using Angklung instruments music, treatment 2 was using Semarpagulingan instrument music and treatment 3 using Gong Kebyar instrument music. The obtained data was analized by ANOVA with the IBM SPSS 20 program. The observed variables include plant height, canopy area of plant leaf, green leaves level and dry weight. The results showed that Gong Kebyar instrument music application produces the highest value of 29.98 on the height of the plant variables, the widest value of 1684 cm2  on the canopy area variables, the biggest value that is 68,61 gr on the dry weight variables and the largest value of 186.79 on the green leaves level variables. Balinese instrument music application effect to the growth of pakcoy mustard plant. The best plant growth was the plant with gong kebyar instrument music application from all observed variables.

Aplikasi Penggunaan Asap Cair terhadap Daya Awet Fillet Ikan Tuna

Sutanaya, Nyoman Try Atmaja, Kencana, P.K Diah, Arda, Gede

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

Tuna fish is a commodity of fishery products is very easly get change of the quality. Preservation is needed to prolong the life of save the fish especially at the time when the fish season and so that the fish can reach the consumer before experiencing the decay. Preservation technology that can be applied is the giving of liquid smoke because the ingredients contain fenol who act as antioxidants. Objective of this research is to find out the shelf life of tuna fish fillets by using the liquid smoke as preservatives and stored at room temperature (27o). This research uses the method ESS (Extended Storage Studies) obtained from sensory test during storage with determine the gladness of the appearance, color , smell, texture and other parameters observed namely pH test, the level of water and protein test. Based on the research results obtained using the method ESS, shows that the quality of tuna fish fillets with the addition of liquid smoke is best obtained on the treatment of liquid smoke concentration of 6% with long storage time during 54 hours, with the main quality parameters cause damage obtained from pH test results and sensory test. Keywords:Tuna fish, liquid smoke, sensory test, shelf life, ESS

Kualitas Foto Udara pada Berbagai Ketinggian

Santika Putra, I Wayan Aris, Wijaya, I made Anom Sutrisna, Gunadnya, Ida bagus Putu

Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 4 No 2 (2016): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

Aim of this research is to find aerial photography acquisition altitude with the best quality image. The acquisition of aerial photography was done by using drones. Altitude of aerial photography acquisition was 10m, 20m and 30m. Aerial photos taken a image of ciherang rice varieties with the age of 100 days after planting. Detailed analysis of aerial photography was done by zooming and image binary. Zooming process was used Adobe Photoshop CS6 software. Binary imagery processed using MatLab 2013 software. The best quality of photo detail was obtained at 10m acquisition altitude. Tujuan dari penelitian ini adalah mencari ketinggian akuisisi dengan kualitas hasil foto udara terbaik. Akuisisi foto udara dilakukan dengan drone. Ketinggian akuisisi foto udara adalah 10m, 20m dan 30m. foto udara yang diambil merupakan foto tanaman padi varietas ciherang dengan umur 100 hari setelah tanam. Analisis detail foto udara dilakukan dengan proses zooming dan binerisasi citra. Proses zooming menggunakan software Adobe Photoshop Cs6. Proses binerisasi citra menggunakan Software MatLab 2013. Ketinggian akuisisi 10m memiliki kualitas detail terbaik.