Jurnal Online Politeknik Negeri Lampung
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Land Suitability Evaluation Of Liberika Coffee On Sub Optimal Land, Langsa Timur Sub District, Langsa, Aceh
Get PDFQuality seeds can be met if during their growth can take place well and produce healthy plants. One of the obstacles in maintenance activities is the recovery of seedling growth after a severe attack of leaf spot disease at the age of 5-6 months in the main nursery. The way that can be done is to test the effectiveness of nitrogen and magnesium fertilization on the recovery of seedling growth. This study aims to obtain the best concentration of nitrogen fertilizer and magnesium fertilizer in optimizing the growth of oil palm seedlings that have been attacked by diseases in the main nursery. The research will be carried out at the Lampung State Polytechnic's Oil Palm Nursery Unit. The experimental design used was a factorial randomized design (RAF) 2 x 3 with 5 replications. The first factor of treatment was KNO3 fertilization and the second factor was kieserite fertilization. The first factor is KNO3 fertilization with a concentration of 1% and 2%. The second factor is kieserite fertilization which consists of doses of 0 g, 5 g, and 10 g. The observed variables were seedling height, seedling diameter, number of midribs, level of greenness of leaves and leaf area of tillers. Observational data will be analyzed by F test at level = 5%. If the results of the analysis of variance are significant, it will be continued with the further test of the smallest significant difference (BNT) at the level of = 5%. The results showed that the application of 2% KNO3 fertilizer with the addition of 10 g of kieserite was able to produce the best growth recovery on all observed variables
AN UTILIZATION OF AGRICULTURAL WASTE AS A SUBSTRATE FOR PRODUCING CELLULASE ENZYME BY ASPERGILLUS NIGER
No full textFresh Fruit Bunches (FFB) of oil palm, bran, straw, and bagasse are agricultural wastes whose availability is very abundant in Indonesia. The agricultural waste is lignocellulosic waste which still has economic value if further processing is carried out, namely as a substrate in the production of cellulase enzymes. Cellulase enzymes are commonly used in various industries such as food biotechnology, textiles, animal feed, paper, and agriculture to degrade cellulose with its main products, namely glucose, cellobiose, and cellooligosaccharides. In producing cellulase enzymes, it is necessary to have microorganisms that have a high ability to produce enzymes, one of which is Aspergillus niger. The purpose of this study was to determine the activity of crude cellulase enzyme, protein content, and specific activity of cellulase enzyme from agricultural waste which includes FFB, bran, straw, and bagasse. The research methods included preparation of Aspergillus niger culture, delignification, basal medium preparation, cellulase enzyme production, enzyme extraction, crude cellulase enzyme activity test (CMC-ase), lowry method protein content test, and determination of cellulase enzyme specific activity. The study showed that the highest crude cellulase enzyme activity in bran was 26.83 U/ml, the highest protein content in bagasse was 63.42 g/ml, and the highest specific activity of cellulase enzyme in straw was 0.9818 U/ml. The high enzyme activity is influenced by the cellulose content in the material, type of substrate, media, substrate concentration, pH, and temperature
Organogenesis formation Porang plant (Amorphophallusmuelleri B.) At Several Concentrations of TDZ (Thidiazuron)
Get PDFThe porang plant (Amorphophallus muelleri B.) is a tuber plant. Porang plant propagation still uses conventional methods by using seeds or frogs that experience dormancy and take a long time to make seeds. The tissue culture technology approach through organogenesis is a solution for the supply of large-scale porang seed material. The research aims to determine the effect of TDZ (Thidiazuron) on the formation of organogenesis. This study used porang leaf explants grown on MS media. The research design used a completely randomized design with one factor, namely TDZ hormone at concentrations of 0 mg/L, 1 mg/L, 2 mg/L, 3 mg/L, and 4 mg/L. The results showed that leaf explants on the addition of TDZ hormone could form organogenesis indirectly, but gave a response to form shoots multiplication. TDZ concentration of 2 mg/L gave the highest proportion value in the parameter of callus formation power of 95%, regeneration power of 88%, and number of shoots of 10.2 shoots.
Tanaman porang (Amorphophallus muelleri B.) merupakan tanaman jenis umbi-umbian. Perbanyakan tanaman porang masih menggunakan metode konvensional dengan menggunakan biji atau katak yang mengalami dormansi dan membutuhkan waktu lama untuk dijadikan bibit. Pendekatan teknologi kultur jaringan melalui organogenesis merupakan solusi untuk bahan penyediaan bibit porang skala besar. Tujuan penelitian ini untuk mengetahui respon TDZ (Thidiazuron) dengan konsentrasi berbeda terhadap pembentukan organogenesis. Penelitian ini menggunakan eksplan daun porang yang ditanam pada media MS. Metode penelitian menggunakan Rancangan Acak Lengkap (RAL) satu faktor hormon TDZ pada konsentrasi 0 mg/L, 1 mg/L, 2 mg/L, 3 mg/L, dan 4 mg/L. Hasil penelitian menunjukkan bahwa eksplan daun pada penambahan hormon TDZ dapat membentuk organogenesis secara tidak langsung, akan tetapi memberikan respon membentuk multiplikasi tunas. Media MS yang diberi perlakuan 2 mg/L TDZ memberikan nilai persentase tertinggi pada parameter daya pembentukan kalus sebesar 95%, daya regenerasi sebesar 88%, dan rata-rata jumlah tunas sebanyak 10.2 tunas.
Kata kunci : Multiplikasi, Porang, Organogenesis, Thidiazuro
PEMELIHARAAN LARVA UDANG VANNAMEI (Litopenaeus vannamei) DENGAN GENETIKA BERBEDA
Get PDFVannamei shrimp is a prospective commodity that continues to be cultured intensively in Indonesia. Efforts to produce vannamei shrimp fry are an activity that continues to be developed by stakeholders, including efforts to improve genetics. Apart from a good aquaculture system, genetics is also an important factor in the success of vannamei shrimp culture. This research was conducted at CV. Manunggal Rasa with a research design carried out using a comparison of 2 genetics of vannamei shrimp larvae, namely American Penaeid, Inc (API) and Benchmark Genetics (BM) with a stocking density used of 40,000 individuals/m2 in each pond with an area of 25 m2. Rearing vannamei shrimp fry for 4 cycles provided several differences in the observation of absolute length growth and survival rate. The absolute length growth of the API genetic vannamei shrimp fry was 5.68 mm, while the BM genetics was 6.16 mm. The survival rate in each cycle is cycle 1 (API 89.9% and BM 93.1%), cycle 2 (API 91.4% and BM 95.6%), cycle 3 (API 88.9% and BM 89 .7%) and cycle 4 (API 93.2% and BM 94.6%). The water quality for each cycle is calculated to be optimal, namely ranging from 27-31oC (temperature), 4.5-5 ppm (DO), 30 ppt (salinity), 0-0.1 ppm (ammonia) and 7.9-8.3 (pH).Udang vannamei merupakan komoditas budidaya unggulan yang terus dibudidayakan secara intensif di Indonesia. Upaya produksi benur udang vannamei merupakan kegiatan yang terus dikembangkan oleh para stakeholders termasuk upaya perbaikan genetik. Karena, selain sistem budidaya yang baik, genetik juga menjadi faktor penting dalam keberhasilan budidaya udang vannamei. Penelitian ini dilakukan di CV. Manunggal Rasa dengan rancangan penelitian yang dilakukan menggunakan perbandingan 2 genetika larva udang vannamei yaitu American Penaeid, Inc (API) dan Benchmark Genetics (BM) dengan padat tebar yang digunakan sebanyak 40.000 ekor/m2 pada setiap kolam dengan luas 25 m2. Pemeliharaan benur udang vannamei selama 4 siklus memberikan beberapa perbedaan pada pengamatan pertumbuhan panjang mutlak dan tingkat kelangsungan hidup. Pertumbuhan panjang mutlak benur udang vannamei genetik API sebesar 5,68 mm, sedangkan genetik BM sebesar 6,16 mm. Tingkat kelangsungan hidup pada setiap siklus yaitu siklus 1 (API 89,9% dan BM 93,1%), siklus 2 (API 91,4% dan BM 95,6%), siklus 3 (API 88,9% dan BM 89,7%) dan siklus 4 (API 93,2% dan BM 94,6%). Kualitas air setiap siklusnya terhitung optimal yaitu berkisar di 27-31oC (suhu), 4,5-5 ppm (DO), 30 ppt (salinitas), 0-0,1 ppm (ammonia) dan 7,9-8,3 (pH).
 
Eksplorasi dan Identifikasi Agen Antagonis dari Lahan Organik Sebagai Implementasi Pengendalian Hayati
Get PDFThe agricultural sector plays a strategic role in food security and environmental sustainability; however, it faces challenges such as declining productivity and pollution due to synthetic chemicals. This study aims to identify antagonistic fungi from organic lands and test their effectiveness in controlling Fusarium sp. pathogens as part of integrated pest management. The methods employed include exploration, isolation, identification, and antagonistic fungi testing on Potato Dextrose Agar (PDA) media. The results revealed four types of identified fungi, including light green, brown, and black, which belong to the Aspergillus sp. and dark green is Trichoderma sp. species. The light green antagonistic fungus effectively suppressed the growth of Fusarium pathogens by 57.84%, while the dark green fungus showed a suppression rate of 32.32%. This study emphasizes the potential of antagonistic fungi as effective biocontrol agents in sustainable agriculture.Sektor pertanian memiliki peran strategis dalam ketahanan pangan dan keberlanjutan lingkungan, namun menghadapi tantangan seperti penurunan produktivitas dan pencemaran akibat penggunaan bahan kimia sintetis. Penelitian ini bertujuan untuk mengidentifikasi jamur antagonis dari lahan organik dan menguji efektivitasnya dalam mengendalikan patogen Fusarium sp. sebagai bagian dari pengendalian hayati. Metode yang digunakan meliputi eksplorasi, isolasi, identifikasi, dan uji antagonis jamur pada media Potato Dextrose Agar (PDA). Hasil penelitian menunjukkan bahwa empat jenis jamur yang teridentifikasi, yaitu hijau muda, coklat, dan hitam, termasuk dalam spesies Aspergillus sp. dan hijau tua adalah Trichoderma sp. Jamur antagonis hijau muda mampu menekan pertumbuhan patogen Fusarium sp. sebesar 57,84%, sedangkan hijau tua sebesar 32,32%. Penelitian ini menegaskan potensi jamur antagonis sebagai agen biokontrol yang efektif dalam pertanian berkelanjutan
Respon Pertumbuhan Dan Produksi Mentimun Baby (Cucumis Sativus L.) Pada Berbagai Aplikasi Eco-Enzym Dan Plant Growth Promoting Rhizobacteria
Get PDFConsumption of baby cucumbers in fresh form by the community is one of the factors driving the cultivation of environmentally friendly cucumbers so that they are safe for health and the environment. The use of PGPR (plant growth promoting rhizobacteria) and eco-enzymes to sufficient the nutrient needs of cucumber plants. This study aims to examine the use of PGPR and eco-enzymes in environmentally friendly baby cucumber cultivation. The study was arranged in an RCBD (Randomized Complete Block Design) design in 3 blocks with 6 treatments, namely control (without fertilizer), eco-enzyme concentration of 5 ml/l water, bamboo root PGPR 10 ml/l water, banana weevil PGPR 10 ml/l water, Eco-enzyme 2.5 ml/l water + PGPR bamboo root 5 ml/l water, eco-enzyme 2.5 ml/l water + PGPR banana hump 5 ml/l water. The research was conducted in Sawahan Hamlet, Pandowoharjo Village, Sleman DIY, alluvial soil type. The research data were analyzed using the Analysis of Variance at the 5% real level. To find out the real difference between treatments, Duncan's multiple distance test was carried out at the 5% real level. The results showed that the use of eco-enzymes could increase root dry weight, fruit number and fruit weight of baby cucumbers. The use of PGPR can increase the number of baby cucumbers. PGPR can increase cucumber fruit weight when applied with eco-enzymes.Konsumsi mentimun baby dalam bentuk segar oleh masyarakat menjadi salah satu faktor pendorong budidaya mentimun ramah lingkungan sehingga aman bagi kesehatan dan lingkungan. Pengunaan PGPR (plant growth promoting rhizobakteria) dan eco-enzym untuk memenuhi kebutuhan unsur hara pada tanaman mentimun. Penelitian bertujuan untuk mengkaji penggunaan PGPR dan eco-enzym pada budidaya mentimun baby ramah lingkungan. Penelitian disusun dalam rancangan RCBD (Randomized Complete Block Design) dalam 3 block dengan 6 perlakuan yaitu control (tanpa pupuk), eco enzyme konsentrasi 5 ml/l air, PGPR akar bambu 10 ml/l air, PGPR bonggol pisang 10 ml/l air, Eco enzyme 2,5 ml/l air + PGPR akar bambu 5 ml/l air, eco-enzym 2,5 ml/l air + PGPR bonggol pisang 5 ml/l air. Penelitian dilaksanakan di Dusun Sawahan, Desa Pandowoharjo, Sleman DIY, jenis tanah alluvial. Data hasil penelitian dianalisis menggunakan Analysis of Variance pada jenjang nyata 5%. Untuk mengetahui beda nyata antar perlakuan dilakukan uji jarak berganda Duncan’s pada jenjang nyata 5%. Hasil penelitian menunjukkan penggunaan eco-enzym dapat meningkatkan bobot kering akar, jumlah buah dan bobot buah mentimun baby. Penggunaan PGPR dapat meningkatkan jumlah buah mentimun baby. PGPR dapat meningkatkan bobot buah mentimun jika diaplikasikan dengan eco-enzym
The FAKTOR PENENTU PRODUKSI KELAPA SAWIT RAKYAT DI PROVINSI RIAU
No full textOil palm plantations have a strategic role as a contributor to the country's foreign exchange and as a provider of employment opportunities for people in Indonesia. Palm oil production in Indonesia is still dominated by large private plantations, but smallholder plantations are increasingly playing an important role in palm oil production. However, the problem is that the production of crude palm oil (CPO) by smallholder plantations has large variations, and is below plantation standards. This study aims to determine the factors that influence smallholder oil palm production in Riau Province. The data collected is secondary data based on the results of the 2013 agricultural census by the Central Statistics Agency (BPS). The number of samples as many as 4,038 farmers, spread across the Riau Province. The method of determining the research location was chosen purposively, namely Riau Province as the research area with the consideration that this area is the largest palm oil producing center in Indonesia. The analytical method used to determine the factors that affect oil palm production is the Cobb Dauglash production function model which is estimated by the OLS (Ordinary least square) method. The results showed that the factors that influenced the production of smallholder palm oil in Riau Province were the number of plants, plant age, urea fertilizer, SP36 fertilizer, NPK fertilizer, organic fertilizer, number of workers, members of the cooperative and partnership participants.
Perkebunan kelapa sawit memiliki peran strategis sebagai penyumbang devisa negara dan penyedia lapangan kerja bagi masyarakat di Indonesia. Produksi minyak kelapa sawit di Indonesia masih didominasi oleh perkebunan besar swasta. Sementara itu, perkebunan rakyat juga semakin berperan penting dalam produksi minyak kelapa sawit. Namun permasalahannya produksi crude palm oil (CPO) oleh perkebunan rakyat memiliki variasi yang besar, dan di bawah standar perkebunan. Penelitian ini bertujuan untuk mengetahui faktor-faktor yang mempengaruhi produksi kelapa sawit rakyat di Provinsi Riau. Data yang dikumpulkan adalah data sekunder berdasarkan hasil dari sensus pertanian tahun 2013 oleh Badan Pusat Statistik (BPS). Jumlah sampel sebanyak 4.038 petani, yang tersebar di wilayah Provinsi Riau. Metode penentuan lokasi dipilih secara Purposive (sengaja) yaitu Provinsi Riau sebagai wilayah penelitian dengan pertimbangan bahwa wilayah tersebut merupakan sentra penghasil kelapa sawit terbesar di Indonesia. Metode analisis yang digunakan untuk mengetahui faktor yang mempengaruhi produksi kelapa sawit digunakan model fungsi produksi Cobb Dauglash yang diestimasi dengan metode OLS (Ordinary least square). Hasil penelitian menunjukkan bahwa faktor yang mempengaruhi produksi kelapa sawit rakyat di Provinsi Riau adalah jumlah tanaman, umur tanaman, pupuk urea, pupuk SP36, pupuk NPK, pupuk organik, jumlah tenaga kerja serta dummy anggota koperasi dan dummy peserta kemitraan
Analisis Pendapatan Petani Model Usahatani Terpadu Jagung-Sapi di Kecamatan Payakumbuh
Get PDFThis research is based on the new paradigm of agricultural development is the development of integrated farming. Agricultural development aims to optimize the utilization of natural resources and advanced technology is cheap, simple, and effective accompanied by the arrangement and development of agricultural institutions in rural areas. Integrated farming as a solution to problems in economic development. The purpose of this study is to analyze the income of farmers in the corn-cattle integrated farming model. This study uses a descriptive method, which is carried out in Lima Puluh Kota Regency, precisely in Payakumbuh District. The selection of the research area was carried out in purposive method. The study was conducted in Juli - Oktober 2022. Determination of the research sample using the snowball sampling method. Collecting data using interview method using questionnaires to obtain primary data and documentation method to obtain secondary data. The data analysis method used descriptive analysis using analysis of farm income, and using analysis of R/C ratio and profitability.The results showed that the average production amount of corn produced was 3.48 tonnes /hectare, with total revenues obtained amounting to IDR 11,327,000 and total cost of IDR 8,759,250/hectare. So, the total income obtained from corn integrated farming are IDR 2,567,750. The total revenues obtained from integrated farming of cattle farming are IDR IDR 98,441,500 with a total cost of IDR 78,910,069.57 /head. So the total income obtained from integrated farming of cattle are IDR 19,531,430.43. The value of the R/C ratio of integrated corn farming is 1.26; with a profit rate of 30.54%. Whereas, the R/C ratio for integrated cattle farming is 1.22, with a profit rate of 22.37%. The value of the R/C ratio and the profit level obtained showed that the corn-cow integrated farming model is feasible to be cultivated and developed.Penelitian ini didasarkan pada paradigma baru pembangunan pertanian yaitu pembangunan pertanian terpadu. Pembangunan pertanian bertujuan untuk mengoptimalkan pemanfaatan sumber daya alam dan teknologi maju yang murah, sederhana, dan efektif disertai penataan dan pengembangan kelembagaan pertanian di pedesaan. Pertanian terpadu sebagai solusi permasalahan dalam pembangunan ekonomi. Adapun tujuan dari penelitian adalah untuk menganalisa pendapatan petani model pertanian terpadu jagung-sapi. Penelitian ini menggunakan metode deskriptif, dimana dilakukan di Kabupaten Lima Puluh Kota tepatnya di Kecamatan Payakumbuh. Pemilihan daerah penelitian dilakukan dengan cara segaja. Penelitian ini akan dilakukan selama 3 bulan pada bulan juli - Oktober 2022. Penentuan sampel penelitian menggunakan metode pengambilan sampel bola salju. Pengumpulan data menggunakan metode wawancara menggunakan kuisioner untuk memperoleh data primer dan metode dokumentasi untuk memperoleh data sekunder. Metode analisis data menggunakan analisis deskriptif kuantitatif dengan menggunakan analisis pendapatan usaha tani, dan menggunakan analisis R/C ratio dan profitabilitas. Hasil penelitian menunjukkan rata-rata jumlah produksi jagung yang dihasilkan 3,48 ton/hektar. Penerimaan total yang diperoleh sebesar Rp11.327.000 dan biaya total sebesar Rp8.759.250. Jadi pendapatan total yang diperoleh dari usahatani jagung terpadu adalah Rp 2.567.750. Rata-rata jumlah produksi sapi yang dihasilkan 3 ekor/musim. Penerimaan total yang diperoleh adalah Rp 98.441.500 dengan biaya total Rp 78.910.069,57. Jadi pendapatan total yang diperoleh dari usaha ternak sapi terpadu adalah sebesar Rp 19.531.430,43. Nilai R/C ratio usahatani jagung terpadu adalah 1,26; dengan nilai tingkat keuntungan sebesar 30,54%. Sedangkan nilai R/C ratio usahatani sapi terpadu adalah 1,22, dengan nilai tingkat keuntungan sebesar 22,37%. Nilai R/C ratio dan tingkat keuntungan yang diperoleh menunjukkan model usahatani terpadu jagung-sapi layak untuk diusahakan dan dikembangkan
Strategi Pengembangan Klaster Pengolahan Ikan Asin Pulau Pasaran Bandar Lampung
Get PDFCluster approach is defined as one of the strategies to develop a competitive and sustainable of marine product prosessing industry. This study aims to develop a strategy for developing a salted fish processing cluster on Pulau Pasaran, Bandar Lampung, using a value chain approach. The research was conducted on Pulau Pasaran, Bandar Lampung in 2022 and is a survey research. The method for answering the research objectives is the SWOT analysis. The results showed that in order far the Pulau Pasaran fish processing cluster to increase its competitiveness and sustainability, it is necessary to improve quality and standardization, ease of technology for access to raw materials and markets. The development of processed salted anchovy clusters is designated as a regional superior commodity through unique packaging, so that the product is better known nationally and can meet the demand for salted anchovies in large quantities in international trade. In the long term, it is necesssary to establish a value chain network from line of supply, produsction, logistics, and distribution, to marketing with the involvement of supporting institutions from the capital sector and technology development support form related agencies.Pendekatan klaster ditetapkan sebagai salah satu strategi untuk mengembangkan industri pengolahan hasil laut yang berdaya saing dan berkelanjutan. Penelitian ini bertujuan untuk menyusun strategi pengembangan klaster pengolahan ikan asin di Pulau Pasaran Bandar Lampung dengan pendekatan rantai nilai. Penelitian dilakukan di Pulau Pasaran Bandar Lampung pada tahun 2022 dan merupakan penelitian survei. Metode untuk menjawab tujuan penelitian adalah pendekatan analisis SWOT. Hasil penelitian menunjukkan bahwa agar klaster pengolahan ikan Pulau Pasaran dapat meningkat daya saing dan keberlanjutannya, maka perlu perlu peningkatan kualitas dan standardisasi, kemudahan teknologi untuk akses bahan baku dan pasar. Pengembangan klaster olahan ikan teri asin ditetapkan sebagai komoditas unggul daerah melalui pengemasan yang unik, agar produk lebih dikenal secara nasional dan dapat memenuhi peluang permintaan ikan teri asin dalam jumlah besar pada perdagangan internasional. Pada jangka panjang, perlu terjalinnya jejaring rantai nilai dari lini pasokan, produksi, logistik dan distribusi, hingga pemasaran/tataniaga dengan pelibatan lembaga pendukung dari sektor permodalan dan dukungan pembinaan teknologi dari dinas terkait
EFEKTIVITAS TRANSFER TEKNOLOGI PENGOLAHAN TEPUNG UBI KAYU TINGGI PROTEIN TERHADAP PENINGKATAN PENDAPATAN PETANI UBI KAYU
Get PDFTepung ubi kayu tinggi protein adalah tepung ubi kayu yang memiliki kandungan protein tinggi (6-7%)yang diperoleh melalui proses fermentasi semi padat. Teknologi pengolahan tepung ubi kayu tinggiprotein sangat potensial diaplikasikan untuk meningkatkan nilai ekonomis ubi kayu industri (ubi kayudengan kandungan HCN tinggi). Dalam rangka transfer teknologi pengolahan tepung ubi kayu tinggiprotein, telah dikembangkan sentra percontohan pengolahan tepung ubi kayu tinggi protein di DesaMargomulyo, Kecamatan Jati Agung, Kabupaten Lampung Selatan. Kegiatan bertujuan 1) mengkajiefektivitas transfer teknologi pengolahan tepung ubi kayu tinggi protein terhadap peningkatanpendapatan petani ubi kayu 2) mengkaji komposisi tepung ubi kayu tinggi protein hasil transferteknologi. Hasil kegiatan menunjukkan bahwa 1) kegiatan transfer teknologi telah mampumeningkatkan pendapatan petani ubi kayu sebesar Rp 322.000,- per minggu dengan rincian:kapasitas produksi 400 kg ubi kayu, produk berupa 80 kg tepung ubi kayu tinggi protein dengan hargajual Rp 15.000,- per kg dan 20 kg tapioka dengan harga jual Rp 6.000,- per kg, total pengeluaran Rp998.000,- dan total pendapatan Rp 1.320.000,- 2) tepung ubi kayu tinggi protein hasil transferteknologi memiliki karakteristik sebagai pangan fungsional yang tercermin dari tingginya kandunganserat pangan (16,53%), kandungan protein 6,19% dan kandungan HCN 8,91 mg/kg.
Kata kunci: transfer teknologi, tepung ubi kayu tinggi protein, pangan fungsiona