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Jurnal BETA (Biosistem dan Teknik Pertanian)
Published by Universitas Udayana
ISSN : 25023012     EISSN : 25023012     DOI : -
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 344 Documents
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Pengaruh Pelapisan Emulsi Minyak Wijen dan Minyak Sereh terhadap Mutu dan Massa Simpan Buah Jeruk Siam (Citrus nobilis lour) Andri Frans Kalvin Gurning; I Made Supartha Utama; Ni Luh Yulianti
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 2 (2019): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (619.544 KB) | DOI: 10.24843/JBETA.2019.v07.i02.p03

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh campuran konsentrasi yang berbeda antara minyak wijen dan minyak sereh dalam air sebagai bahan pelapis pada kualitas buah jeruk selama penyimpanan pada suhu kamar. Konsentrasi emulsi minyak wijen bervariasi 0%, 0.5%, dan 1% dalam kombinasi minyak serah 0%, 0.5%, 1%, dan 1.5%. Bahan tambahan yang digunakan untuk membuat emulsi adalah 1% dari tween 80, 0.5% asam oleat, dan alkohol 3%. Buah kontrol tanpa perlakuan juga disiapkan untuk perbandingan. Percobaan dilakukan dengan menggunakan Rancangan Acak Lengkap (RAL) dengan tiga ulangan. Hasil penelitian menunjukkan bahwa perlakuan campuran minyak wijen dan minyak sereh signifikan mempengaruhi mutu dan masa simpan buah jeruk. Konsentrasi gabungan dari 0.5% minyak wijen dan 0.5% minyak sereh memberikan hasil terbaik yang mampu mengurangi susut bobot, kerusakan pembusukan, perubahan pH dan total padatan terlarut jus buah, dan kekerasan buah. Kata kunci : jeruk, mutu, masa simpan, konsentrasi, pelapisan emulsi.
KAJIAN PENGHEMATAN AIR IRIGASI PADA METODE SYSTEM OF RICE INTENSIFICATION (SRI) DAN tEKNIK IRIGASI BERSELANG (MGENYATIN) PADA BIDUDAYA PADI (STudi Kasus di Subak Sigaran) I Kadek Andrie Prasetya; I Wayan Tika
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 2 No 2 (2014): Agustus
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

Penelitian ini dilakukan untuk membandingkan pengurangan air irigasi dari beberapa budidaya, model budidaya adalah Sistem Intensifikasi Padi (SRI), teknik ngenyatin dan budidaya konvensional, serta membandingkan produktivitas budidaya tanaman padi. Penelitian ini terdiri dari empat perawatan dengan tiga repetisi, yaitu perawatan konvensional, metode SRI, Teknik ngenyatin, dan kombinasi metode SRI dan teknik Ngenyatin. Parameter itu yang diamati dalam penelitian ini adalah: kebutuhan air irigasi, pengurangan air irigasi masing-masing perlakuan dibandingkan dengan K0, berat rumpun, berat biji per rumpun, panjang tangkai, biji jumlah per tangkai, jumlah benih produktif, berat beras per rumpun, persentase beras berdasarkan pada jumlah, persentase beras berdasarkan beratnya, berat 100 butir dan beras yang dihasilkan produksi tanaman. Hasil penelitian menunjukkan perbedaan yang signifikan dengan teknik budidaya antara perawatan yang berpengaruh terhadap penghematan air irigasi dalam setiap perawatan dan pengaruh terhadap beras produktivitas tanaman. Perawatan K3 yang menerapkan metode SRI yang dikombinasikan dengan sistem Ngenyatin yang merupakan pengobatan terbaik dengan meminimalkan penggunaan air irigasi hingga 58% dibandingkan dengan K0 perlakuan yang menerapkan penanaman konvensional dan menghasilkan 8,85 ton / ha produktivitas dibandingkan dengan yang lain perawatan. This research was conducted to compare the reducing of irrigation water from some cultivation, cultivation model were System of Rice Intensification method (SRI), ngenyatin technique and the conventional cultivation, as well as compared the productivity of rice plants cultivation. This research consists of four treatments with three repetitions, which is conventional treatment, SRI method, Ngenyatin technique, and the combination of SRI method and Ngenyatin technique. Parameters that observed in this research were: the needs of irrigation water, the reducing of irrigation water each treatments compared to K0, the weight of clumps, the seeds weight per clump, the stalks length, the seeds amount per stalk, the amount of productive seeds, the rice weight per clump, the percentage of rice based on its amount, the percentage of rice based on its weight, the weight of 100 grains and the result rice plants production. The research results show significant differences with cultivation technique between the treatments that influence to the thrift of irrigation water in every treatments and influence to the rice plants productivity. K3 treatment that applied the SRI method that combined with Ngenyatin system which is the best treatment by minimize the using of irrigation water up to 58% compared than K0 treatment that applied conventional planting and produced 8.85ton/ha productivity compared with other treatments.
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 Madrini
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 1 (2019): Maret
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 | Full PDF (495.811 KB) | DOI: 10.24843/JBETA.2019.v07.i01.p02

Abstract

Tujuan dari penelitian ini yaitu memperoleh profil suhu dan kadar air tanah pada budidaya tanaman cabai rawit menggunakan beberapa macam mulsa. Penelitian ini menggunakan rancangan acak kelompok, masing-masing terdiri dari lima perlakuan dan tiga ulangan yaitu perlakuan tanpa mulsa, perlakuan mulsa plastik perak, plastik hitam, plastik bening dan perlakuan mulsa jerami padi. Untuk pengukuran suhu tanah menggunakan alat sensor suhu DS18B20 sedangkan untuk kadar air tanah menggunakan metode gravimetri. Pengukuran suhu dan kadar air tanah dilakukan 3 kali yaitu pada 3 hari, 30 hari dan 60 hari setelah tanam. Analisis data suhu dan kadar suhu dan kadar air tanah dalam mulsa menggunakan metode garis kontur. Hasil penelitian suhu tanah menunjukan kontur profil pada saat 3 hari profil sebaran tanpa mulsa 29-33?C, mulsa plastik perak 28-32?C, mulsa plastik hitam 29-34?C, mulsa plastik bening 31-37?C dan mulsa jerami 26-31?C. Pada saat 30 hari profil sebaran tanpa mulsa 26-33?C, mulsa plastik perak 26-31?C, mulsa plastik hitam 27-33?C, mulsa plastik bening 28-32?C dan mulsa jerami 25-30?C dan pada saat 60 hari profil sebaran tanpa mulsa 26-31?C, mulsa plastik perak 25-30?C, mulsa plastik hitam 27-32?C, mulsa plastik bening 31-37?C dan mulsa jerami 26-29?C, sedangkan dari hasil pengukuran suhu tanah yang didapatkan berhubungan dengan hasil kadar air tanahnya. The purpose of this research was to water content and soil temperature profile content on mulch for cultivation of cayenne pepper plants with different types of mulch. This research use random design group, 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 mulch treatment , and rice straw mulch treatment. The variable observed of soil temperature using a temperature 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 29-330C, silver plastic mulch 28-320C, black plastic mulch 29-340C, clear plastic mulch 28-320C and rice straw mulch 25-300C. At 30 days, without mulch distribution profile is 26-330C, silver plastic mulch 26-310C, black plastic mulch 27-330C, clear plastic mulch 28-320C and rice straw mulch 25-300C. At 60 days, without mulch distribution profile is 26-310C, silver plastic mulch 25-300C, black plastic mulch 27-320C, 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.
Analisis Efisiensi Biaya Distribusi Pupuk Bersubsidi di Wilayah Kabupaten Klungkung Menggunakan Metode Transportasi Erni Febriani; I Wayan Widia; Gede Arda
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 4 No 2 (2016): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.569 KB)

Abstract

The aim of this research was to determine the distribution pattern of subsidized fertilizer in Klungkung regency, as well as to determine the distribution pattern of subsidized fertilizer that produced the minimum distribution cost. The research method used in the study, were a survey, measuring the distance and collect secondary data. The survey was conducted to official distributors to obtain the amount of farmer groups which recieved the subsidized fertilizer. The information of farmer groups’ distance to the official distributors, received fertilizer, and the cost spent to distribute the fertilizer were needed to calculate the unit cost of distribution. All of those information were obtained by field survey and direct measurement in location. The data obtained then was analyzed by applying three methods of transportation that was North West Corner Method, the Lowest Cost Method and The Vogel's Approximation Method. The results indicated that the methods produced different costs in which the minimum distribution cost by Rp 6.065.846,00 was produces by the Lowest Cost Method. The value of the result is vsame with the transportation minimum cost that produced by the distribution pattern of subsidized fertilizer at this time in Klungkung regency, so it can be concluded that the distribution pattern of subsidized fertilizer in Klungkung regency at this time is meeting with the all criteria distribution pattern with transportation minimum cost.
Pengaruh Jarak Tanam Terhadap Pertumbuhan dan Hasil Tanaman Bayam (Ammaranthus tricolor) Secara Hidroponik NFT (Nutrient Film Technique) I Made Suarjana; I Gusti Ngurah Apriadi Aviantara; Gede Arda
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 1 (2020): April
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.954 KB) | DOI: 10.24843/JBETA.2020.v08.i01.p08

Abstract

The purpose of this study was to determine the effect of spacing on the growth and yield of spinach plants with hydroponic NFT (Nutrient Film Technique) and to determine the most effective spacing and spinach results of hydroponic NFT plant growth. This study uses a Completely Randomized Design (CRD) consisting of four treatment spacing, namely 5 cm, 10 cm, 15 cm and 20 cm. Each treatment uses the same number of plants as 15 plants in one gutter. The study was conducted for 20 days. The parameters observed were plant height, number of leaves, fresh weight, dry weight, root length, and stem diameter. High parameters and number of leaves are measured every two days, while parameters of fresh weight, dry weight, root length, and stem diameter are measured after harvest on the 20th day. For the final value obtained from the calculation of plant height growth parameters, namely JT5 (27.45), JT10 (32.45), JT15 (33.22), and JT20 (32.94). And for the final value obtained from the calculation of the number leaf growth parameters, namely JT5 (11.21), JT10 (12.19), JT15 (12.51), and JT20 (12.17). While the final value of crop yield parameters for root lengths is JT5 (28.06), JT10 (30.43), JT15 (31.36), JT20 (30.70). For the stem diameter the average value obtained is JT5 (0.72), JT10 (8.84), JT15 (0.90), JT20 (0.85). For fresh weight of plants, the average values ??obtained are JT5 (182.40), JT10 (208.24), JT15 (215.07), JT20 (210.76). And for dry weight, the average value obtained is JT5 (9.51), JT10 (13.52), JT15 (15.05), JT20 (13.71). It can be concluded that from the results of the ANOVA analysis, the treatment of 15 cm spacing had the best results and the spacing of 5 cm showed the lowest results in each treatment observed.
ANALISIS KEBUTUHAN AIR TANAMAN STRAWBERRY YANG DIBUDIDAYAKAN SECARA HIDROPONIK DI DALAM GREENHOUSE I Made Purnadiyasa; I Wayan Wayan Tika; Ni Nyoman Sulastri
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 1 No 2 (2013): Agustus
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (171.395 KB)

Abstract

Tujuan dari penelitian ini adalah untuk menentukan pola kebutuhan air untuk tanaman stroberi menggunakan hidroponik yang ditanam di rumah kaca, dari transplantasi ke waktu panen. Bahan yang digunakan dalam penelitian ini adalah bibit strawberry, sekam padi, pupuk NPK dan polybag plastik. Alat yang digunakan adalah penganalisa tanah 4 arah untuk mengukur pH tanah, kelembaban tanah, intensitas cahaya untuk tanah, keseimbangan analitis, tangki plastik yang digunakan untuk menyimpan air, penggaris dan termometer. Parameter yang diamati adalah kadar air awal, periode pasokan air irigasi, jumlah air yang digunakan oleh tanaman dan kebutuhan air irigasi. Berdasarkan penelitian yang dilakukan selama (i) tingkat tinggi adalah (57,66 ml / hari), (ii) sedang adalah (42,40 ml / hari) dan (iii) rendah adalah (30,06 ml / hari) ) kelembaban tanah, hal ini menunjukkan bahwa kebutuhan air tanaman tergantung pada kelembaban tanah yang ada. Selain itu, ada kecenderungan bahwa kebutuhan air tanaman akan meningkat seiring dengan meningkatnya kelembaban tanah. Selama tingkat kelembaban tanah yang rendah (di bawah kapasitas lapangan), tanaman akan mengalami kesulitan dalam mengekstraksi air dari tanah. Sebaliknya, selama tingkat kelembaban tanah yang tinggi, air akan mudah diambil dan kebutuhan air tanaman akan meningkat karena peningkatan penguapan tanah, terutama selama tahap awal pertumbuhan tanaman The purpose of this study was to determine the pattern of water requirements for strawberry plant using hydroponic which was planted in the greenhouse, from transplanting to harvesting time. The materials used in this study were the strawberry seedlings, rice husk, NPK fertilizer and plastic polybag. The tools used were 4-way soil analyzer to measure soil pH, soil moisture, light intensity for soil, analytical balance, plastic tank that were used to store water, ruler and thermometer. Parameters observed were initial moisture content, the period of irrigation water supply, amount of water used by plants and irrigation water requirement. Based on the study which was conducted during the (i)high level is (57,66 ml/day), (ii)medium is (42,40 ml/day) and (iii)low is (30,06 ml/day) of soil moisture, it showed that crop water requirement depended on existing soil moisture. In addition, there was a trend that crop water requirement wouldincrease as the increase of soil moisture. During low level of soil moisture (under the field capacity), the plant would experience difficulties in extracting water from soil. Conversely, during high level of soil moisture, water would easily be taken and plant water requirement would increase because of the increase of soil evaporation, especially during the initial stage of plant growth.
Analisa Nilai Tambah Produk Hortikultura Selada (Lactuca sativa l) di Pasar Modern dengan Proses Penanganan Pascapanen Enike Windari Sihite; I G.N. Apriadi Aviantara; Ni Luh Yulianti
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 2 (2018): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.024 KB) | DOI: 10.24843/JBETA.2018.v06.i02.p01

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.
Intensitas Serangan Hama Tikus Tanaman Padi Menggunakan Metode Pengamatan Keliling Berhubungan Linier dengan Luas Serangan Hasil Analisi Foto Udara I Ketut Satria Rahadi; I Made Anom Sutrisna Wijaya; I Wayan Tika
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 2 (2019): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (770.027 KB) | DOI: 10.24843/JBETA.2019.v07.i02.p08

Abstract

Hama tikus adalah hama yang dapat menyebabkan kegagalan panen tanaman padi. Metode yang digunakan untuk mengukur besaran serangan hama tikus adalah metode pengambilan contoh dan pendekatan foto udara. Namun dari kedua metode ini tingkat serangan yang dihasilkan belum diketahui korelasinya. Maka dari itu dilakukannya penelitian ini untuk mendapatkan hubungan antara intensitas dan luas serangan hama tikus tanaman padi. Tahapan penelitian ini adalah survei lokasi yang terserang hama tikus, persiapan alat, pengambilan foto udara, pengambilan sampel untuk perhitungan intensitas serangan, pengolahan citra, perhitungan luas serangan, analisis regresi dan validasi. Intensitas serangan dihitung menggunakan perhitungan secara mutlak, sedangkan luas serangan dihitung menggunakan metode pengolahan citra foto udara yang dikembangkang oleh Widodo. Analisis regresi menunjukan bahwa hubungan antara intensitas serangan dengan luas serangan memiliki koefisien determinasi 0,889 dan persamaan regresi yang diperoleh y = 1,138x dengan faktor kesalahan 8,947%. Intensitas serangan hama tikus tanaman padi menggunakan metode pengambilan contoh berhubungan linier dengan luas serangan hasil analisis foto udara yang dikembangkan oleh Widodo. Rat pests are pests that can cause crop failure in rice plant. The method used to calculate the number of rodent pest attacks is the method of sampling and obtaining aerial photographs. But from these two methods the level of attack produced is not known to correlate. So this study purpose to obtain a relationship between intensity of attack with area of attack rat pest of rice plants. The stages of this study were location surveys that were attacked by rat pests, preparation of tools, aerial photography, and sampling for the calculation of attack intensity, image processing, area attack, regression analysis and validation. The intensity of attacks is calculated using total calculations, while broad attacks are calculated using the aerial image processing method developed by Widodo. Regression analysis shows the relationship between the intensity of ??attack with the area of ??attack has a determination coefficient of 0.889 and the regression coefficient obtained y = 1.138x with an error factor of 8.947%. The intensity of rat pest attacks using linear related sampling methods with broad attack results from aerial photo analysis developed by Widodo.
Analisis Kebutuhan Traktor Berdasarkan Ketersediaan Air pada Subak di Kabupaten Tabanan I Gede Berliyantha Tikawa; I Wayan Tika; Ida Bagus Putu Gunadnya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 2 (2020): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (629.526 KB) | DOI: 10.24843/JBETA.2020.v08.i02.p17

Abstract

Mengolah tanah dalam kegiatan pertanian memerlukan pengaturan kebutuhan traktor secara optimal. Jumlah traktor yang seharusnya dibutuhkan dengan luas lahan yang ada berdasarkan pada ketersediaan air di suatu subak dengan tujuan untuk memperoleh produktivitas hasil olah tanah yang optimal maka diperlukan traktor dengan ketersediaan air irigasi yang mengairi lahan untuk memperlancar pengolahan dan mengefisienkan tanah tersebut. Tujuan penelitian ini adalah untuk mengetahui banyaknya traktor yang diperlukan berdasarkan ketersediaan air dengan membandingkan traktor yang tersedia pada subak. Penelitian ini menggunakan pendekatan analisis kuantitatif melalui metode survey dengan mencari data primer yaitu pengukuran debit tersedia dibangunan bagi dan pengukuran dilahan. Hasil penelitian menunjukkan bahwa traktor yang dibutuhkan berdasarkan ketersediaan air di subak Kabupaten Tabanan yang ada di hulu, tengah dan hilir. Untuk sembilan subak yang ada di daerah hulu, traktor rotari yang diperlukan dengan rata-rata 6 traktor dapat mengolah lahan mencapai 87,3 ha atau 1 unit traktor dapat mengerjakan lahan dengan luas 14,6 ha dengan rata-rata konsumsi air untuk 1 unit traktor yaitu 27,16 lt/dt. Untuk sembilan subak yang ada di daerah tengah traktor yang diperlukan dengan rata-rata 5 traktor dapat mengolah lahan dengan luas 69 ha atau 1 unit traktor dapat mengerjakan lahan dengan luas 13,8 ha dengan rata-rata konsumsi air untuk 1 unit traktor yaitu 26,84 lt/dt. Sedangkan sembilan subak yang ada di daerah hilir traktor yang diperlukan dengan rata-rata 10 traktor dapat mengolah lahan dengan luas 114,5 ha atau 1 unit traktor dapat mengerjakan lahan dengan luas 11.8 ha dengan rata-rata konsumsi air untuk 1 unit traktor yaitu 12,1 lt/dt. Cultivating land in agricultural activities requires optimal regulation of tractor requirements. The number of tractors that should be needed with the available land area is based on the availability of water in a subak with the aim of obtaining optimal tillage productivity, so a tractor with the availability of irrigation water is needed to irrigate the land to facilitate processing and streamline the land. The purpose of this study is to determine the number of tractors needed based on water availability by comparing the tractors available on subak. This study uses a quantitative analysis approach through a survey method by finding primary data, namely the measurement of discharge available for building and land measurements. The results showed that the tractors needed were based on the availability of water in the subaks of Tabanan Regency in the upstream, middle and downstream areas. For the nine subaks in the upstream area, the required rotary tractor with an average of 6 tractors can cultivate land reaching 87,3 ha or 1 tractor unit can work on an area of ??14,6 ha with an average water consumption for 1 unit of tractor which is 27,16 lt/sec. For the nine subaks in the central area of ??the tractor needed, with an average of 5 tractors, an area of ??69 ha or 1 unit of tractor can work on an area of ??13,8 ha with an average water consumption for 1 tractor unit, 26, 84 lt/sec. While the nine subaks in the downstream area of ??the tractor needed with an average of 10 tractors can cultivate land with an area of ??114,5 ha or 1 unit of tractor can work on land with an area of ??11.8 ha with an average water consumption for 1 tractor unit that is 12,1 lt/sec.
Pengaruh Pemberian Uap Etanol dan Emulsi Lilin Lebah Terhadap Mutu dan Masa Simpan Buah Salak Gulapasir Ni Kadek Juliani; I Made Supartha Supartha Utama; I.G.N. Apriadi Aviantara
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 2 (2017): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh pemberian uap etanol dengan konsentrasi larutan yang berbeda dan konsentrasi emulsi lilin lebah yang berbeda, sebagai bahan pelapis terhadap mutu serta masa simpan salak Gulapasir dan menentukan ragam konsentrasi yang tepat untuk mempertahankan mutu buah salak Gulapasir. Penelitian ini menggunakan rancangan acak kelompok faktorial dengan dua faktor yaitu perlakuan etanol dengan 3 tingkat konsentrasi (0%, 10% dan 20%) dan konsentrasi emulsi lilin lebah (0%, 1%, 2%, dan 3%). Salak Gulapasir sebagai kontrol disiapkan tanpa perlakuan etanol dan pelapisan lilin lebah. Percobaan dikelompokkan menjadi tiga kelompok. Pengamatan dilakukan setiap lima hari sampai hari ke 15. Parameter yang diamati meliputi susut bobot, kekerasan, total padatan terlarut, total asam titrasi, intensitas kerusakan, color difference dan uji organoleptik. Hasil sidik ragam menunjukan bahwa interaksi perlakuan uap etanol dan pelapisan lilin lebah berpengaruh nyata terhadap susut bobot, kekerasan, intensitas kerusakan, color difference, dan uji organoleptik rasa, aroma warna sedangkan tidak berpengaruh nyata terhadap total padatan terlarut dan total asam. Kombinasi perlakuan etanol dengan konsentrasi 20% (E20) dengan pelapisan 1% (K1) dengan karakteristik yang dihasilkan nilai rata-rata susut bobot 21,04%, kekerasan 37,34 N, intensitas kerusakan 6,79%, total padatan terlarut 21,04 0Brix, total asam 0.59%, color difference 26,14. Demikian pula uji organo memiliki nilai rata-rata dari panelis untu rasa 3,57, aroma 3,27, dan warna 3.51. The aim of this study is to know the effect of ethanol vapor with different consentration and different concentration of beeswax emulsion, as a coating material that can preserve the quality and shelf life of salak Gulapasir. This research used a factorial randomized block design with two factors which are ethanol vapor treatment with 3 levels of concentrations (0%, 10% and 20%) and variety concentration of beeswax emulsion (0%, 1%, 2%, and 3%). Salak Gulapasir as control were prepared without treatment of ethanol vapor and beeswax emulsion, as a coating material. The experiment were devided into three groups. The observation is perfomed every five days until fifteenth day. The observed parameter of this research were weight loss, hardness, intensity of damage, total dissolved solids, total titrated acids, color difference and organoleptic test. The result of variance analysis showed that the interaction between ethanol vapor and beewax coating significantly affect the weight loss, hardness, intensity of damage, color difference, and organoleptic test. Whereas no significantly affect on total dissolved solids and total titrated acids. The combination of ethanol vapor of 20% (diluted in the water) and 1% concentration of beeswax emulsion as a coating material with the resulting characteristic weighted mean value of 21.04%, hardness 37.34 N, intensity of damage 6.79%, total dissolved solids 21, 04 0Brix, total acid 0.59%, color difference 26.14. Similarly, the organoleptic test has an average value of panelist for taste of 3.57, aroma 3.27, and color 3.51.

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