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Jurnal Penelitian Pertanian Terapan

JPPT
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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 All submitted articles will not be published elsewhere, original and not considered for other publications.

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Articles 741 Documents

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Substitusi Kebutuhan Nitrogen Tanaman Padi Sawah oleh Tumbuhan Air Azolla (Azolla pinnata) Iwan Gunawan; Raida Kartina
Jurnal Penelitian Pertanian Terapan Vol 12 No 3 (2012)
Publisher : Politeknik Negeri Lampung.

The research aims to study the ability of Azolla pinata in substituting nitrogen requirement of rice plants at a low dose of urea fertilizer. Factorial experiment arranged in randomized complete design (RCD) with four combinations of treatments and 6 replications. The first factor is the dose of urea with 2 dose level, ie, without urea (U0) and 100 kg urea ha-1 (U1). As a second factor is the provision of water plant Azolla pinnata with a degree without Azolla (A0) and Azolla 100 g m-2 (A1). The experimental results show that: (1) water plant azolla increased height, dry weight, productive tillers and dry weight of paddy rice crops, (2) Provision of a Urea increase high, dry weight, productive tillers and grain dry weight of rice plants, and (3) water plants azolla interacts with urea in increasing plant dry weight and grain dry weight of paddy. Keywords: Nitrogen, Rice, Azolla pinnata

Pengaruh Interval Waktu Pemberian Air terhadap Produktivitas Tanaman Tomat Di Lahan kering Dataran Rendah pada Musim Kemarau Erie Maulana Sy; Muhammad Idrus
Jurnal Penelitian Pertanian Terapan Vol 10 No 3 (2010)
Publisher : Politeknik Negeri Lampung.

The research was conducted in research station Polytechnic of Lampung, started the April from November 2009. The experiment was conducted in randomized completely block design with 3 replications. The treatments irrigation interval water gift time consist of 4, 6, 8, and 10 days. The parameters that were (1) tall plants, (2) fruit total formed, (3) production, (4) irrigation water gift total, and (5) water productivity. The data obtained to be analysed use anova, with BNT test for the mean of treatments value with level 0.05. The result of research indicate that are irrigation interval of 8 days in tomato plants cultivar Mutiara at dry season of lowland gave economical benefit per unit of water and can be conserved 47% irrigation water with production 1.28 kg.plants-1 (28.33 ton.ha-1). Keywords : Irrigation interval, tomato production, dry season, lowland

Pengaruh Pemberian Iba (Indole Butyric Acid) dan Konsentrasi Naa (Naphthalene Acetic Acid) terhadap Keberhasilan Penyetekan Sirih Merah (Piper Crocatum Ruiz and Pav.) Desi Maulida; Rugayah Rugayah; Dewi Andalasari
Jurnal Penelitian Pertanian Terapan Vol 13 No 3 (2013)
Publisher : Politeknik Negeri Lampung.

The research was conducted at the cutting red betel (Piper crocatum Ruiz and Pav.) to determined the effect of (1) the difference growth of cuttings of red betel which are given IBA and without IBA, (2) the concentration of NAA on growth of cutting red betel, (3) the concentration of NAA on growth of cutting red betel on each given IBA. The treatment was arranged in factorial (2 x 4) in randomized block design with three replication. The first factor were without IBA (a0) and the given of 1.000 ppm IBA (a1). The second factor were the concentration of NAA consists of: 0 ppm (b0), 1.000 ppm (b1), 2.000 ppm (b2), and 4.000 ppm (b3). The results showed that the NAA concentration of 4000 ppm produced the most number of roots on either at the node or at the base of cutting. Planting cutting red betel which given IBA 1.000 ppm was able to accelerated the time leaves open and increased the number of cutting which germinate. The mixtured of giving IBA 1.000 ppm and the concentration of NAA 4.000 ppm, produced the most number of cutting that germinated. Keywords : red betel, given IBA, dan concentration NAA

Efikasi Herbisida Atrazin terhadap Gulma Umum pada Lahan Budidaya Tanaman Jagung (Zea mays L.) Mustajab Mustajab; Dad R. J. Sembodo; Herawati Hamim
Jurnal Penelitian Pertanian Terapan Vol 15 No 1 (2015)
Publisher : Politeknik Negeri Lampung.

The objective of this research was to know the efficacy of atrazine herbicide to control the common weed in maize (Zea mays L.) field and how was the phytotoxicity to maize (Zea mays L.) plant. The research was conducted in the Institute for Agricultural Technology assessment (BPTP), Natar Experimental Field, South Lampung regency with ultisol soil type and Weeds Laboratory Faculty of Agriculture, University of Lampung, from June to September 2013. The experiment was arranged in Completely Randomized Block Design (CRBD) with six treatments and four replications. The treatments are atrazine herbicide at 1.2, 1.6, 2.0, and 2.4 kg ha-1, mechanic weeding, and control. Homogeneity of variance was tested by Bartlett test and additivitty tested by Tukey's test, the comparison of mean were tested by Least Significant Difference (LSD) test at 5% level. The result showed that (1). Atrazine herbicide at 1.2 â€“ 2.4 kg ha-1 could suppress total weed until 6 Week After Treatment (WAT). (2) Atrazine herbicide at 1.2â€“2.4 kg ha-1 could suppress broadleaves and grasses weed until 6 WAT. (3) Atrazine herbicide did not cause phytotoxicity symptoms to the maize (Zea mays L.).plant. Keywords: Weed, Efficacy, Atrazine, Maize

Potential of Pineapple Madu Shell (Ananas comosus (L.) Merr.) As Anti-Browning Agent in Apples Manalagi (Malus sylvestris Mill) Rizka Devi Anggita; Zulkifli Zulkifli; Martha L Lande
Jurnal Penelitian Pertanian Terapan Vol 17 No 1 (2017)
Publisher : Politeknik Negeri Lampung.

The purpose of this study was to determine the effect of water extract of pineapple shell in the process of browning apple manalagiÂ (Malus sylvestris Mill). The research was conducted from October to November 2016 in the Laboratory of Plant Physiology Department of Biology, Faculty of Mathematics and Natural Sciences, University of Lampung. As variables were browning index, total soluble carbohydrate content, dehydrogenase enzyme activity, and reducing sugar levels, while the parameter is the mean of all variables. The experiment was conducted in completely randomizes design. The main factor was the water extract of theÂ pineapple shell with 5 concentration levels:Â 0% v / v, 25% v / v, 50% v / v, 75% v / v, 100% v / v. Levene test, analysis of variance and LSD test was carried out at 5% significance level. The results showed that the water extract pineapple shell was significantly lower the browning index of apples manalagi, and the relationship between the concentration and browning index is quadratic (y = 9E-05x2 - 0.013x + 1.018 RÂ² = 0665). Extract of pineapple shell did not significantly affect total soluble carbohydrate content of apples manalagi but a downwardÂ trend in total soluble carbohydrate content with increasing concentrations of the extract (y = -0.049x + 29.66Â Â RÂ² = 0.923). The relationship between the concentration of water extract pineapple shell with dehydrogenase enzyme activity was negative linear (y = -0.082x + 12.04Â Â RÂ² = 0.969). Reducing sugar levels increase at the concentration of 50% v/v,75% v/v, and 100% v/v. The final conclusion was that the water extract of pineapple shell was potential as anti-browning agent for apples manalagi because it was able to reduce browning index 51.89%, and influence other physiological processes.Keywords: Pineapple shell, Apples manalagi, Browning, carbohydrate, dehydrogenase.

Prospek dan Kendala Pengembangan Agribisnis Jagung di Propinsi Nusa Tenggara Barat Bambang Winarso
Jurnal Penelitian Pertanian Terapan Vol 12 No 2 (2012)
Publisher : Politeknik Negeri Lampung.

Nationally, corn demand in Indonesia is still experiencing a lot of shortcomings, so as to fulfill domestic demand is still much imports. It makes a significant opportunity for potential regions such as West Nusa Tenggara Province to develop commodity massively. As it is known that in the development of commodity corn farming will always be included in the networking activities of agribusiness commodities themselves, which means success in improving the cultivation of corn farming can not be separated from the system of agribusiness commodities.. Development of corn by most farmers are not necessarily for their own consumption but geared to meet market needs. This paper is a portrait of the problems and opportunities faced by actors from the business development of corn producers (farmers) to the consumer of corn in the region of West Nusa Tenggara Province. Through the SWOT method to try to put hail research in the field. From the results showed that the cultivation of corn farming development in the province of West Nusa Tenggara are still many obstacles and barriers. On the other hand is very promising prospects for future development Keywords: Prospect, Constraints, Agricultural Development , Corn

Ekstraksi Senyawa Antibakteri dari Chlorella Sp. Max R. Wenno; Ninik Purbosari; Johanna L. Thenu
Jurnal Penelitian Pertanian Terapan Vol 10 No 2 (2010)
Publisher : Politeknik Negeri Lampung.

Some bioactive compounds are produced by microalgae. One of them is antibacterial compounds that produced by Chlorella sp which is result of secondary metabolit. This compound called Chlorellin which is mixed of fatty acid. The experiment was conducted to extraction of bioactive compound and was knew antibacterial activity of Chlorella sp. Based to antibacterial activity assay, the crude extract of Chlorella sp. has been pursued growth of sampel bacteria : E.coli, S.aureus, A.hydophyla, P. Aeruginosa and V. Harveyi. This antibacterial activity marked with the forming of transparent zona is around paper disc on the agar media. Keywords: Chlorella, extraction, antibacterial compound

Aktivitas Mikroba Tanah, Pertumbuhan dan Rendemen Nilam (Pogostemon Cablin Benth.) pada Berbagai Aras Bahan Organik Serta Lengas Tanah di Ultisols Any Kusumastuti
Jurnal Penelitian Pertanian Terapan Vol 13 No 2 (2013)
Publisher : Politeknik Negeri Lampung.

This experiment has been conducted to study the effect of organic matter levels and soil water content levels of Ultisols on soil microbe activity, growth and patchouli oil content of Pogostemon cablin. Experiment was carried out under green house condition and was arranged in completely randomized blocks with factorial design, consisted of two factors and tree replications. First factor was levels of organic matter (5, 7.5, and 15 ton hectare-1), and second factor were levels of soil water content (100 %, 80 %, 60 % and 40 % of field capacity). The yield of experiment showed that there were interaction between organic matter levels and soil water content levels on dry weight, wet weight of Pogostemon cablin and CO2 releasing but there were no interaction on dry weight and wet weight of root of Pogostemon cablin. The highest patchouli oil content (i.e. 1.35 %) are found on 100 % level of soil water content, but on lower levels of soil water content, patchouli oil content were decrease. Keywords: Soil microbe activity, patchouli oil, pogostemon cablin, organic matter

Peranan LKM-A dalam Mendorong Percepatan Adopsi Teknologi Jagung di Sumatera Barat Nasrul Hosen
Jurnal Penelitian Pertanian Terapan Vol 14 No 1 (2014)
Publisher : Politeknik Negeri Lampung.

Microfinance Institutions (LKM-A) is a venture capital under the auspices gapoktan. LKM-A growing and evolving through the Rural Agribusiness Development Program (PUAP) with facilitation fund capital gain Rp. 100 million per gapoktan which began in 2008 and continued until 2013. LKM-A were grown in 2008 and 2009 has been developed with venture capital indicators (asset) is over Rp. 150 million. The capital rent to farmers to develop agricultural businesses, one of which corn business. This paper aims to study the expression of the results to identify maize technology adoption rates in the region work Gapoktan/LKM-A in the maize production centers like Limapuluh Kota and Tanah Datar district. Survey conducted in 2012 by taking a sample of 2 Gapoktan per district with LKM-A asset criteria over Rp. 150 million and has been operating 3-4 years. Sample farmers in each region gapoktan 30 people selected randomly, consisting of 15 farmers member of LKM-A and 15 farmers not a member of LKM-A. The data were analyzed by farm analysis and comperative analysis before and after the LKM-A. The result showed that after the LKM-A, maize technology adoption by farmers of members increased compared to before there LKM-A. Before there LKM-A. majority of farmers in Limapuluh Kota District has adopted several major technologies such as (i) seed labeled 70%, (ii) 90.0% of hybrid, (iii) site-specific fertilization 36.7%. Once there LKM-A. turns the main technology adoption increases, respectively, to 100.0%, 100.0% and 90.0%. Adoption of maize technology before there LKM-A. in Tanah Datar, namely (i) the user seed labeled 63.3%, (ii) hybrid 73.3% and (iii) site-specific fertilization 30.0%, and after LKM-A. increased adoption row to be 90.0%, 90.0% and 70.0%. Other technology components also changed for the better. Technology adoption by members LKM-A is also more than the farmers are not members at the same time. Technology improvements to increase corn yields and farm profits and additional economically viable investment for technological improvements by indicators in Limapuluh Kota district MBCR = 2.72 and 1.76 in Tanah Datar district. Conclusion, that the dissemination of the technology needs to be followed by the provision of capital resources in conditions of available technology, is able to accelerate the adoption of technology. Suggested to the stakeholders that are easily accessible sources of capital such as small farmers LKM-A. needs to be developed in rural areas, in order to support the acceleration of adoption of technological innovations and development of agribusiness at farmer level.. Keywords: Corn, LKM-A, capital, technology adoption, income

Bakteri Asam Laktat dari Peda, Bekasam, Terasi dan Rusip Penghambat Morganella Morganii (Pembentuk Histamin) Rinto Rinto
Jurnal Penelitian Pertanian Terapan Vol 11 No 2 (2011)
Publisher : Politeknik Negeri Lampung.

The aim of this research is find out the lactic acid bacteria (LAB) from peda, bekasam, terasi and rusip which had antagonis by Morganella morganii (histamin producer bacteria). The result was that the number isolate from peda was 3 (1P1 104, 3P1 104, 2P2 104), bekasam was 7 (1B1 104, 2B1104, 1B2104, 2B2104, 3B2 104, 1B1 105, 2B1105), terasi was 4 (1T1 104, 2T1 104, 3T1 104) and rusip was 5 isolates (1R1103, 2R1103, 3R1103, 1R1104,Â 1R2104). All the isolates was bacill, gram positive, and negative catalase. The isolate which had biggest of clear zone was 3B1104 and 1T11104, with the diameter of clear zone was 1.725 cm and 1.300 cm. Keywords: Antagonis, Lactic acid bacteria, Morganella morganii

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