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Jurnal Penelitian Pertanian Terapan
Published by Politeknik Negeri Lampung
ISSN : 14105020     EISSN : 24071781     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Penelitian Pertanian Terapan is a peer-reviewed journal that publishes scientific articles from agricultural disciplines covering Plantation crops, Food crops and horticulture, food Technology, Agriculture biology and agribusiness. Articles published in the Journal of Applied Agriculture may be research results (original) and scientific review articles (review). Applied Journal of Agriculture is published by Research Unit and Community Service of Lampung State Polytechnic Society 3 edition one year, that is January, May, and September. JPPT was first published in January 2000. JPPT published a print version in 2007, then started the online version or Open Journal System (OJS) in 2014. Early online versions of JPPT or OJS editing have not yet been fully implemented online management and are beginning to make improvements Web Journal view and journal cover and OJS governance management on Volume 2 No. 2 of 2017. JPPT has been indexed on Google Scholar and Garuda IPI by 2015, and by 2017 it has indexed SINTA and registered DOAJ and Crossref in the same year. We accept submissions from all over Indonesia. All submitted articles will not be published elsewhere, original and not considered for other publications.
Arjuna Subject : -
Articles 10 Documents
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Search results for , issue "Vol 20 No 1 (2020)" : 10 Documents clear
Rantai Nilai Jeruk Keprok (Citrus Reticulate) Soe di Kabupaten Timor Tengah Selatan Provinsi Nusa Tenggara Timur Gregorius Gehi Batafor; Yason Edison Benu
Jurnal Penelitian Pertanian Terapan Vol 20 No 1 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i1.1431

Abstract

These study aims are analyzed the value chain after applying Soe tangerine cold storage technology. Qualitative and quantitative research methodologies, while data analysis techniques used the biological method and cost analysis. Value chain analysis shows that collectors' profits are IDR 5,306 per kg, retailer IDR 10,806 per kg, while farmers IDR 1,806 per kg. If the difference between each actor in the distribution chain is calculated, the farmer only receives an added value of IDR 2,250 per kg, while collecting traders IDR 5,750 per kg and retailers IDR 11,250 per kg. The RC ratio produced by farmers is 1.14, collecting traders 1.31, and retailers 1.45. Analysis of basic costs, cold storage for 3 months requires a fee of IDR 708,146 per kg. This value is lower compared to conventional storage of IDR 1,372 per kg. Based on interviews regarding price predictions for the next 3 months and shrinkage values, there is a significant difference between conventional storage and cold storage. The advantage of cold storage is greater than conventional storage, which is IDR 13,417 per kg while conventional storage is IDR 3000 per kg. The increase was obtained assuming the price before being saved IDR 22,250 per kg, and the sale price after saving is IDR 35,000 per kg. Value chain analysis shows that three stakeholders can use cold storage technology, namely farmers, collectors, and retailers in several people's markets in Kupang City. With the lowest profit and RC value in farmers, cold storage technology is more suitable for farmers compared to other actors. With cold storage technology, the chances of Soe's tangerine offering will remain under control.
Pemanfaatan Vinasse sebagai Pupuk Organik Cair untuk Meningkatkan Pertumbuhan dan Hasil Bunga Kol (Brassica oleracea var. Botrytis L.) Siti Ma'rufah; Riza Yuli Rusdiana; Vega kartika sari
Jurnal Penelitian Pertanian Terapan Vol 20 No 1 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i1.1552

Abstract

Cauliflower is a annual vegetable crop that is rich in vitamins and minerals.  This is one of the commodities exported by Indonesia. Fertilization is a determinant of the success of vegetable farming. The use of chemical fertilizers that are not balanced with organic fertilizers can have a negative impact on the environment. Vinasse is an industrial waste that is rich in organic matter, potassium, calcium and micro nutrients and can be used as liquid organic fertilizer. This study aims to determine the effect of giving several doses of vinasse on the growth and production of cauliflower. The experimental design used is a single factor Randomized Block Design (RCBD). The treatment dose used consisted of four levels namely, 0 l / ha (V0), 15000 l / ha (V1), 20000 l / ha (V2), 25000 l / ha (V3). The results showed that there was a very significant effect on plant height at 14 DAP and 21 DAP, and on the variabels of flower weight per sample, flower weight per bed, and fresh stover weight per sample, and showed a significant effect on the number of leaf  variabel on age 14 DAP and 21 DAP. The best treatment of vinasse fertilizer is 25000 l / ha (V3).
Studi Analisis Finansial Pendirian Industri Keripik Pisang di Provinsi Lampung Sri Hidayati; Neti Yuliana; Tanto Pratondo Utomo; Rio Cakaradinata
Jurnal Penelitian Pertanian Terapan Vol 20 No 1 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i1.1567

Abstract

This study aims to determine the analysis of the location of the establishment of a suitable banana chips industry in Lampung by using an exponential comparison method and the feasibility of financial analysis.. The research method uses observation, survey and interview techniques. To determine the location of the plant using the Exponential Comparison Method. The results showed that the suitable location was Ketapang sub-district in south Lampung regency with a value of 11129 and was declared financially feasible because it had a positive Net Present Value (NPV), the value of the Internal Rate of Return (IRR) was greater than the prevailing interest rate at present, the value of the Benefit/Cost (B/C) ratio is more than 1 and the payback period (payback period 1 year 11 months) is the maximum business feasibility at a 15% increase in raw materials per year.
Pengaruh Metode Penanaman Lingkar Berjajar Pada Pertumbuhan Tanaman Jagung Manis (Zea Mays Saccharata). Lutfy Ditya Cahyanti; Use Etica
Jurnal Penelitian Pertanian Terapan Vol 20 No 1 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i1.1404

Abstract

The experiment aims to know the effect of The off-row circle planting method on the growth of sweet corn. This research was conducted in the Sub District of Siman, Ponorogo, with altitude 140 asl and textured clay grumosol soil types. The research used a randomized block design (CBD) with 4 kinds of planting spaces included C1 = 8 plant / (60x80) cm2, C2 = 16 plant / (60x80) cm2, C3 = 12 plant/ (60 x 80) cm2, C4 = 1 plant/ (60 x 80) cm2, C5 = 1 plant/ (60 x 80) cm2 with mowing. Each experimental unit was repeated 5 times so that there were 25 units. The observation was done at 21,28, 35, 42 and DAP (the day after planting). Some vegetative growth traits of sweet corn were determined as plant height (cm), the number of leaves (leaf plant-1), leaf area (m2) and leaf area index, fresh weight (g) and dry weight (g). Row circle planting method affected the fresh weight and dry weight of sweet on 49 DAP, sweet corn with 1 plant/ (60 x 80) cm2 with mowing treatments showed the higher value  and significantly different with other treatments, with 803 g for fresh weight and 7,70 g for dry weight.
Analisis Laju Perkecambahan Kacang Tanah (Arachis hypogaea (L.) Merr.) yang Diberikan Kombinasi Perlakuan Suhu dan Lama Perendaman Asap Cair (Liquid Smoke) Basry Yadi Tang; Stormy Vertygo; Abner Tonu Lema; Wahyu Dani Swari
Jurnal Penelitian Pertanian Terapan Vol 20 No 1 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i1.1482

Abstract

The research aims to get to analyze the effect of temperature and liquid smoke soaking combination on the velocity of peanut germination. Parameters measure were; Mean Germinatin Time (MGT), Mean Germinatin Rate (MGR), Final Germintaion Percentage (GT), Coefficient Velocity Of Germination (CVG), Germination Rate Index (GRI). The treatment combinations used were temperature 250C (1), 300C (2), 350C (3) dan 400C (4) and liquid smoke in which the seeds were soaked for 1 hour (a), 2 hours (b) and 3 hours (c). This resulted in 12 treatment combinations. Results showed that the best treatments were control 1 (K0 250C), control 4 (K0 400C) and 4a (K1 400C), with germination velocity as folows: 1.67 cm.day-1, 1.50 cm.day-1 and 2.00 cm.day-1 respectively . However, it is recommended to use soaking in liquid smoke for an hour (1a) in order to further initiate germination development that could hopefully lead to a much higher peanut crop yield during cultivation.
Kelimpahan Kepik Predator (Hemiptera: Reduviidae) di Daerah Endemik Serangan Ulat Api Pada Perkebunan Kelapa Sawit Rakyat Siska chiko efendi; Yaherwandi Yaherwandi; Maiwil Diratika
Jurnal Penelitian Pertanian Terapan Vol 20 No 1 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i1.1471

Abstract

Caterpillar fire is classified as the main pests in oil palm plants and are found in almost all oil palm plantations in Indonesia. The caterpillar fire control is currently being directed to biological control by predatory insects. Insects from the Reduviidae family are one of the insects whose members are predators of caterpillar fire. This study aims to (1) identify predatory ladybug species (Hemiptera: Reduviidae) found in endemic areas of caterpillar fire attacks. (2) studying the abundance of predatory ladybugs (Hemiptera: Reduviidae) in areas endemic to fire caterpillar attacks. The research locations were Nagari Panyubarangan, Timpeh district, and Nagari Gunung Selasih, Pulau Punjung district. Identification of sample insects was carried out at the insect Bioecology Laboratory, plant protection department, faculty of Agriculture, Andalas University and campus III land and plant laboratory Dharmasraya from April-July 2018. The sampling of insects uses two methods, namely direct collection, and swing net. In this research, 8 species of predatory ladybugs were found. Of these 8 species, only 3 species preyed on caterpillar fire. Species that prey on fire caterpillars have the highest abundance of Cosmolestes practices as many as 116 individuals and followed by 64 individual Zelus regarding species.  
Studi Keragaman Struktur Morfologi dan Anatomi Petiole (Tangkai Daun) Dari Berbagai Kultivar Pisang Kepok (Musa Paradisiaca L.) Galuh putri anjasmara; Eti Ernawiati; Gina Dania Pratami; Endah Setyaningrum
Jurnal Penelitian Pertanian Terapan Vol 20 No 1 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i1.1496

Abstract

Kepok bananas are one type of banana that is found and used in Indonesia. These bananas contain high nutritional value so they are suitable for use as food ingredients. This study aims to determine the anatomical structure and morphology of petiole from various banana kepok cultivars. These cultivars are: kepok abu, batu, kapas, kuning, Libanon, and Manado. However, Kepok Libanon cannot be found in the previous collection area. The research was conducted in December 2018 to January 2019. The taking of plant samples using the method of exploration and observation of anatomical structures using fresh preparations across the incision and the results were analyzed descriptively. The observation of the structure of morphology of petiole is the largest petiole diameter, namely kepok kapas while the smallest is kepok batu. Kepok batu is the only one that has a canal leaf shape overlaps while  kepok  abu, kapas, kuning, and manado have the leaf shape of a curved canal inside. The fifth color of the kepok banana cultivar is the same which is green. Kepok abu have blackish brown spots while kepok batu, kapas, kuning, and manado have brown spots. The anatomical structure of the petiole includes the xylem diameter, transport tissue, support tissue, basic tissue, and protector tissue. Kepok kapas has the largest xylem diameter while kepok kuning has the smallest xylem diameter. Five kepok banana cultivars, has xylem and phloem transport tissue were clearly seen by the sclerenchyma sheath. Epidermal, parenchymal, and sclerenchymal tissue were clearly seen in the five cultivars.
Sifat Biologi Tanah Pada Lahan Aplikasi dan Tanpa Aplikasi Tandan Kosong Kelapa Sawit di Adolina PT. Perkebunan Nusantara IV Sakiah Sakiah; Ade Firmansyah; Dina Arfianti
Jurnal Penelitian Pertanian Terapan Vol 20 No 1 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i1.1493

Abstract

Oil palm empty fruit bunches (OPEFB) is one of the solid wastes from the processing of palm oil into crude palm oil. Generally, OPEFB is used as mulch on oil palm plantations. This study aims to compare the soil biological properties on land with the application of OPEFB and land without the application of OPEFB in a depth of 0-20 cm and 20-40 cm. Soil sampling was carried out at Adolina, PT Perkebunan Nusantara IV, in block 06 A (land with the application of OPEFB) and block 06 B (land without the application of OPEFB). The observation parameters are organic matter content, total microbes, and soil respiration. Then, the data analysis results are processed with SPSS version 20. The test was using a t-test. The research results of oil palm empty fruit bunches application with a dose of 35 tons ha-1 which were applied evenly without layering on the oil palm plantations aged 13 years can increased soil organic matter content at a depth of 0-20 cm but does not increase total microbes and soil respiration both at a depth of 0-20 cm and at a depth of 20-40 cm compared with total microbes and soil respiration on land without the application of OPEFB.
Analisis Kelayakan Finansial Pada Tanaman Lada di Kabupaten Lampung Timur Zulkarnain - zulkarnain; Muhamad gary ranchianowarganegara
Jurnal Penelitian Pertanian Terapan Vol 20 No 1 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i1.1223

Abstract

The role of the agricultural sector in Indonesia is led to increasing agricultural production. One of the sub-sectors in the agricultural sector that give quite a big contribution to the national economy is the farming plant sub-sector. One of the export commodities from the farming plant sub-sector that has an important role in the economy is the pepper plant. Farming plant productivity had not been optimum and farmers paid low attention to the quality of their plants so that it will affect the price in which it will also give the influence to profit level of them that will get smaller, while, life necessity is getting bigger. The study aimed to analyze the financial expediency of pepper plants in the district of Margatiga, East Lampung regency. The location of the study was in Margatiga district, East Lampung regency. The respondents in this study were pepper farmers in Margatiga districts, East Lampung regency with the total was 56 farmers who had been chosen by simple random sampling. Financial analysis was used to answer the research question. The finding result shows that pepper farmings in the district of Margatiga in East Lampung regency were financially profitable and feasible to develop.
Sensitivitas Bibit Jewawut (Setaria Italica (L.) P. Beauv) di Lahan Salin Pantai Cilacap Yugi R. Ahadiyat; Normawati Normawati; Totok Agung Dwi Haryanto
Jurnal Penelitian Pertanian Terapan Vol 20 No 1 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i1.1427

Abstract

The objectives of this study were to determine the criteria of foxtail millet seedlings in coastal area and the effects of N, P, K fertilizer and water hyacinth ameliorant powder on growth characters of young foxtail millet plant in coastal saline land. The study was conducted at south coast, Bunton Village, Adipala District, Cilacap Regency in May-October 2019. Study in coastal saline land with factorial Randomized Complete Block Design with four replications. The treatment consisted of two factors, namely the dosage of N, P, K fertilizer (N, P, K = 25%, 50%, 75%, and 100% recommended dosage) and the water hyacinth powder ameliorant dose i.e.  0 t / ha, 1.5 t / ha and 2.5 t / ha. Observation variables on seedling morphology viz. seedling height, leaf length, stem diameter, number of leaf and leaf greenness, and on.the field viz. plant height, number of leaf, fresh and dry root weights, total root length, and fresh and dry shoot weights. The results showed that good seedling criteria was. Plant height  (24-26 cm), leaf length (15-17 cm), leaf number (3-6), stem diameter (3,2-3,6 cm) and leaf greeness (18,6-20,9 unit). Application of fertilizer dosages of N, P, K 50% + without ameliorant gained the greater plant height of 62.76 cm and number of leaf of 7.28 than other treatments

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