Yonathan Parapasan
Jurusan Budidaya Tanaman Perkebunan Politeknik Negeri Lampung, Jln. Soekarno-Hatta, Rajabasa Bandar Lampung Tel. 0721703995

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Pemanfaatan Kompos Kiambang dan Sabut Kelapa Sawit sebagai Media Tanam Alternatif pada Prenursery Kelapa Sawit (Elaeis guineensis Jacq.) Gusta, Adryade Reshi; Kusumastuti, Any; Parapasan, Yonathan
Jurnal Penelitian Pertanian Terapan Vol 15, No 2 (2015)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (38.079 KB) | DOI: 10.25181/jppt.v15i2.122

Abstract

The efforts to achieve optimal results in the development of oil palm cultivation one of which is the use of the planting medium. Palm oil seedlings require planting medium that has the chemical and physical properties are good. Media palm nurseries generally consist of topsoil are mixed with sand and organic matter which is expected to obtain a good medium fertility premises. Top soil needs more difficult, so we need to look for alternative media to growing media prenursery palm oil. This study used randomized complete design and experiment arranged in seven media with four replications. The applications method of media: 100 % topsoil (A), topsoil and salvinia compost (1:1) (B), topsoil and coir palm oil (1:1) (C), topsoil and salvinia compost (1:2) (D) , topsoil and coir palm oil (1:2) (E), coir palm oil and salvinia compost (1:2) (F) , topsoil , salvinia compost, and coir palm oil (1:1:1) (G). All data were analyzed for variance. Data analysis followed by separation of means using LSD test with significance level of 5%. The resulted showed that both time and applications method of topsoil have affect on growth component. The best application method was topsoil, salvinia compost, and coir palm oil increased dry weight and root dry weight. Keywords: Prenursey, topsoil , salvinia compost, coir palm oil
Waktu dan Cara Aplikasi Cendawan Mikoriza Arbuskular (CMA) pada Pertumbuhan Bibit Tanaman Kopi Parapasan, Yonathan; Gusta, Adryade Reshi
Jurnal Penelitian Pertanian Terapan Vol 14, No 3 (2014)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (326.796 KB) | DOI: 10.25181/jppt.v14i3.161

Abstract

The effort to increase productivity of coffee plants in long dry season upland of Ultisol include application of Vesicular Arbuscular Mycorrhizae (VAM) on coffee plants, because its application only one time and its affect along a life time of coffee plant in the field. This study aims to determine the exact time and applications method of VAM on growth coffee seedlings. This study used 10 g VAM/polybag or 800 spores as basic treatment. This study used randomized block design and experiment arranged in factorial 3 x 5 with three replications. The first factor was the time of VAM application: given at nursery seedlings (W1), given at transplanting (W2), and combine of given at nursery seedlings and transplanting (W3). The second factor was the applications method of VAM: without VAM inoculant (C0), VAM inoculant placed around the coffee seedling root up to a depth of 2 cm below root (C1), up to a depth of 4cm below root (C2), up to a depth of 6 cm below root (C3), and VAM inoculant mixed with media planting (C4). All data were analyzed for variance. Data analysis followed by separation of means using LSD test with significance level of 5%. The resulted showed that both time and applications method of VAM have affect on growth component and root infection rate. The best application time was double application, i.e. combine of given at nursery seedlings and transplanting, and the best applications method was VAM inoculant placed around the coffee seedling root up to a depth of 2 cm below root, both of them increased plant height, stem diameter, leaf amount, long of root, and root infection rate.
Peningkatan Mutu Kompos Kiambang MelaluiAplikasi Teknologi Hayati dan Kotoran Ternak Sapi Hartono, Joko S.S.; Same, Made; Parapasan, Yonathan
Jurnal Penelitian Pertanian Terapan Vol 14, No 3 (2014)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (136.601 KB) | DOI: 10.25181/jppt.v14i3.160

Abstract

Kiambang (Salvinia natans) which a water plant became a seriously problem in the use of Reservoir Batutegi, because nearly 80% of its surface covered by Salvinia natans. The presence of highly abundant of Salvinia natans have highly potential to be used as a source of organic fertilizer. The purpose of this study was to examine the effect of the application of biological technology (decomposers) and cow manure on the quality of the resulting compost kiambang. This study used randomized block design and experiment arranged in factorial 4 x 4 with three replications. The first factor was the dose of decomposers which consists of 4 levels, namely A1 = 0 ml, A2 = 20 ml, 30 ml dose = A3, and A4 = 40 ml decomposers per quintal kiambang respectively. The second factor was the dose of cattle dung, i.e. B1 = 0 kg, B2 = 10 kg, 20kg = B3, and B4 = 30 kg manure per quintal kiambang. The results showed the compost that has the best quality in terms of physical and chemical compost was the compost derived from the treatment of 30 ml and 40 ml decomposers per quintal kiambang which combined with 10 kg, 20 kg or 30 kg manure per quintal kiambang. Keywords: Salvinia natans, decomposers, cow manure, compost quality
Optimasi Pemberian Lumpur Aktif dan Dolomit dalam Pengolahan Limbah Cair Pabrik Kelapa Sawit Widayanti, Erni; Subiantoro, Rijadi; Parapasan, Yonathan
Jurnal Agro Industri Perkebunan Volume 6 No. 1, Mei 2018
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (145.226 KB) | DOI: 10.25181/jaip.v6i1.671

Abstract

The palm oil mill effluent (POME) generally has very high of BOD and COD contents, so it must be processed before it is drained to the body water. The purpose of this research was to determine the capability of active sludge and dolomite rate and the combination both of them in reducing the palm oil industry liquid waste. This research was conducted in December 2016 until January 2017 at Chemical Analysis Laboratory, State Polytechnic of Lampung. This research consists of two factors. First factor was the use of active sludge (without active sludge and 1 kg of active sludge), and the second factor was dolomite rate (0,3%, 0,6%, and 0,9% dolomite).The results obtained were calculated bassed on average repetitions then at compared with the value of initial analysis and quality standard, but the COD value is calculated based on the percentage of the reduction value, and all the observed values are presented in the graph. The results showed that the 1 kg active sludge treatment was more effective in degrading the wastewater than with no active sludge. The increased dose of dolomite to 0.9% combined with 1 kg of active sludge will be followed by an increase in pH (6,23) and DO (0,26 mg.l-1), but decrease COD to 53,7%, TSS to 810 mg.l-1, turbidity value to 700 NTU, and potassium content to 4865 mg.l-1.                                                 Keywords: chemical oxygen demand, dissolved oxygen, palm oil mill effluent, total suspended solid, turbidity
Penggunaan Kompos Blotong dan Pupuk Nitrogen pada Pembibitan Kakao (Theobroma cacao L.) Astuti, Fitri; Parapasan, Yonathan; Hartono, Joko Sutopo Sugeng
Jurnal Agro Industri Perkebunan Volume 3 No. 2, Oktober 2015
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (286.936 KB) | DOI: 10.25181/aip.v3i2.23

Abstract

The purpose of this study was to determine the growth response of the cocoa seed to compost filter cake and nitrogen fertilizer application. This research has been carried out in State Polytechnic of Lampung teaching farm from September 2013 to March 2014 The method used was randomized block design (RBD) with factorial pattern consisting of two factors. The first factor is the compost filter cake, consisting of four levels, namely B0 = 0 g (control), B1 = 50 g, 100 g = B2, and B3 = 150 g per polybag. The second factor is the rate of nitrogen (Urea) fertilizer that consists of four levels, namely N0 = 0 g (control), N1 = 2.5 g, N2 =5.0 g and N3 = 7.5 g per polybag. The indicator used is cocoa seedlings (Theobroma cacao L.). Observations of plant height, leaf number, stem diameter, leaf width, root volume, shoot dry weight, root dry weight, and water content of the soil. Data were analyzed by analysis of variance with the level of accuracy of 5%, then if the calculated F value is greater than the F table, then followed by LSD test. The results showed the use of compost filter cake 150 g and 5.0 g of nitrogen fertilizer each per polybag give value stem diameter, root volume, stover dry weight, and root dry weight of cocoa seedlings higher than the other treatments.Keywords: filter cake compost, growing media, nitrogen fertilizer, Theobroma cacao L.Permalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/23
Pengaruh Konsentrasi dan Lama Fermentasi Urin Sapi sebagai Pupuk Cair pada Pertumbuhan Bibit Karet (Hevea brasiliensis Muell. Arg.) Sari, Vinda Nawang; Same, Made; Parapasan, Yonathan
Jurnal Agro Industri Perkebunan Volume 5 No. 1, Mei 2017
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (115.769 KB) | DOI: 10.25181/aip.v5i1.651

Abstract

The aims of this research is to get the best concentration of cow urine as liquid organic fertilizer on rubber seed growth, to get the best fermentation time for cow urine as liquid organic fertilizer on the growth of rubber seedlings, and get the best interaction between concentration and cow urine fermentation as liquid organic fertilizer on the growth of rubber seedlings. The experiment was conducted in teaching farm of State Polytechnic of Lampung from January 2016 until June 2016. The treatments arranged in Randomized Block Design (RBD) with the factorial pattern consisting of two factors. The first factor was the concentration of cow urine, consisting of four levels: 15 cc.l-1, 30 cc.l-1, 45 cc.l-1 and 60 cc.l-1. The second factor was the duration of cow urine fermentation, consisting of five levels: 0 day, 7 day, 14 day, 21 day and 28 day. Rubber seedlings were used as plant indicator. Observations included plant height, number of petiole, stem diameter, stem girth, and dry weight of biomass. The results showed that the treatment of cow urine concentration had significant effect on plant height and number of petiole, but very significant effect on stem diameter, stem girth and dry weight of biomass. Likewise, the treatment of cow urine fermentation has significant effect on all observed variables except on the dry weight of biomass has a very significant effect. The interaction between treatment of cow urine concentration and cow urine fermentation did not significantly affect all variables except on dry weight of biomass had significant effect, i.e. cow urine concentration treatment of 45 cc.l-1 and fermentation of cow urine for 28 days resulted in dry weight of biomass higher rubber seedlings.   Keywords: cow urine, fermentation, rubber seedlingsPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/651