Jurnal Agro Industri Perkebunan
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Pengaruh Dosis Serum Lateks terhadap Koagulasi Lateks (Hevea brasiliensis)
Get PDFWaste water that comes out of the milling process latex factory so many and has not been utilized, often becomes a problem for the environment if the handling is not optimal. This wastewater is known as latex serum. Latex serum can be used as an alternative coagulant because it has a low pH and containing metal ions. Low pH will lower the pH of the latex to the isoelectric point and cations of alkali metals will reduce electro kinetic potential latex, so latex becomes frozen. Research purposes to determine the length of time coagulation of latex, yield of coagulum and yield dry rubber. Research conducted at the Laboratory of Plant Production at Politeknik Negeri Lampung. The material used are latex serum and latex and other materials. The equipment used is the coagulation bath, digital pH meter, a wooden spatula, milling, stopwatch, and other analysis tools. The research tested in completely randomized design with one independent variable used is composed of coagulant doses: 0%, 4%, 8%, 12%, 16% and 20% v/v and replicated 3 times. The observation are pH of latex serum, pH oflatex, coagulation time, and yield dry rubber. The result showed that for pH of latex serum is 4.9, pH of latex is 6.22, the best doses to coagulation is 20% with time to coagulation 17 minute time, coagulum yield of 59.83 and dry rubber yield of 42.10.Keywords: coagulant, latex coagulation, latex serumPermalink:Â http://jurnal.polinela.ac.id/index.php/AIP/article/view/3
Perbandingan Pertumbuhan Jumlah Mata Tunas Bibit Bagal Tebu (Saccharum officinarum L.) Varietas GMP2 dan GMP3
Get PDFThe aim of this research is to analyse the effect of the number of buds per stem cutting on vegetative growth, especially from germination phase to budding phase of sugarcane GMP2 and GMP3 varieties. Research carried out in the garden practices of The State Polytechnic of Lampung, Rajabasa, Bandar Lampung in November 2014 to February 2015. The research method used a factorial randomized block design, consisting of two factors. The first factor was the sugarcane varieties, i.e. GMP2 and GMP3. The second factor was the amount of buds from stem cutting which consists of 4 levels: 1, 2, 3, and 4 buds per stem cutting. Based on the results of this research there was no interaction between variety and number of buds from stem cutting. Varieties affected on plant height, number of leaves, number of tillers, length of roots shoots (butters roots) and roots length rope (rope system roots). While the number of buds seeds mule had no effect on plant height, number of tillers, stem diameter, length of roots surface (superficial roots), and heavy roots.Keywords: number of buds, stem cutting, sugarcane varietiesPermalink:Â http://jurnal.polinela.ac.id/index.php/AIP/article/view/3
Evaluasi Kinerja Pengelolaan Pabrik Karet Remah: Studi Kasus di Sumatera Selatan
Get PDFIndonesia as the world's second largest natural rubber producer, products derived predominantly (> 90%) in the form of crumb rubber. In the management of crumb rubber factoryshould basically be dynamic is to follow developments in technology and customer requirements, as well as efforts to increase competitiveness. To determine the performance of crumb rubber factory on the current and future compliance requirements have made observations on the management of crumb rubber factory. This research was conducted using a survey of crumb rubber factory in South Sumatera province. Determination respondents crumb rubber factory done intentionally (purposive sampling) the criteria for the location of the plant, production capacity, production processes, energy use, and production control. Survey activities conducted in crumb rubber factory located in Musi Banyuasin, Muara Enim and Banyuasin districts, as well as four factories located in the city of Palembang. Parameter observations include raw rubber material conditions, contamination control, energy aspects of processing, and the malodor control. The survey results indicate the selectivity in the purchase raw rubber material by the crumb rubber factories decreased due to competition tightly, it could have an impact on the risk of contamination problems in products SIR. Management of crumb rubber factories have sought to convert the use of fossil fuel resources to materials that are environmentally friendly. Tata factory work generally show has been categorized as good, there is even a plant considered to be very good, fairly intensive use of labor inspectors in some parts of the process and the results are assessed effectively. Odor problems at the crumb rubber factories can be reduced by using good air circulation room and poring Deorub into blanket before the drying.Keywords: consistency, contaminant, crumb rubber, energy, factory, quality, raw materialPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/2
Pengaruh Pemberian Kompos Kiambang dan Pupuk Majemuk pada Pertumbuhan Bibit Kakao (Theobroma cacao L.)
Get PDFThe objective of this research is to measure the effect of giant salvinia compost and compound fertilizers on growth of cocoa seedlings. This research has been conducted in State Polytechnic of Lampung experimental garden, Rajabasa, Bandar Lampung on December 2014 until May 2015. The method used was a randomized block design (RBD). The factorial pattern consisting of two factors. The first factor was the rate of giant salvinia compost consists of four levels, namely: K0 = 0 g.polybag-1, K1 = 200 g.polybag-1, K2 = 300 g.polybag-1, and K3 = 400 g.polybag-1. The second factor was the rate of compound fertilizer consists of two levels, namely: M0 = 0 g.polybag-1, M1 = 5 g.polybag-1, M2 = 10 g.polybag-1. Data were analyzed by analysis of variance further significantly different if followed by LSD test at the 5% level of accuracy. Observations included plant height, number of leaves, stem diameter, root length, dry weight, and ratio of root-shoot dry weight. The results showed that giant salvinia affected on plant height, number of leaves, stem diameter, root length, and the ratio of root-shoot dry weight. Compound fertilizer also affected on plant height and number of leaves, stem diameter, root length, and and ratio of root-shoot dry weight. There was an interaction between rate of giant salvinia compost and compound fertilizer on length root.Keywords: compound fertilizer, giant salvinia compost, Theobroma cacao L.Permalink:Â http://jurnal.polinela.ac.id/index.php/AIP/article/view/1
Pengaruh Berbagai Jenis Pupuk Organik terhadap Spesies Gulma Invasif
Get PDFThe use of organic fertilizer is very instrumental to the growth and crop production, organic fertilizer can also improve soil fertility, as well as to maintain the ecosystem in the surrounding environment. In addition to providing the advantages of using organic fertilizer also has weaknesses when refining them in the process of making organic fertilizer is not good enough, potentially toxic to human health, likely to carry germs organic fertilizers, and weed seeds. This study aims to find out the weeds that dominated after the use of organic fertilizers and proving the existence of an invasive weed borne organic fertilizer. This research was carried out on open land Lampung State Polytechnic, using cow manure treatment (MS), goat manure (MK), fertilizer pome (MP), organic fertilizer factory (MB), and control (KT). This study uses a randomized block design (RAK). The observed results are weed vegetation analysis, percent weed cover, summed Dominance Ratio (SDR), and the community coefficient (C). research shows that after the application of organic fertilizers shift the dominant weed species, proving organic fertilizer bring invasive weed, and it turns organic fertilizer from the cow shed which led to the highest weed invasion.Keywords: invasive weeds, organic fertilizer, weed species shiftsPermalink:Â http://jurnal.polinela.ac.id/index.php/AIP/article/view/1
Penggunaan Kompos Blotong dan Pupuk Nitrogen pada Pembibitan Kakao (Theobroma cacao L.)
Get PDFThe 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:Â http://jurnal.polinela.ac.id/index.php/AIP/article/view/2
Pengaruh Pemberian Serat Kelapa Sawit dan Urine Sapi pada Pertumbuhan Bibit Kakao (Theobroma cacao L.)
Get PDFCocoa plants are plantation crops that have high economic value and stable. Cocoa prospects quite good because the market demand is very big commodity. The research was conducted in field trials, Lampung State Polytechnic, from September 2014 up to February 2015. Experiments conducted with factorial randomized block design with 2 factors and any combination treatment was repeated three times. The first factor, namely the provision of oil palm fiber to the growing media consisting of 0% oil palm fiber and 100% soil, 25% oil palm fiber and 75% land, 50% oil palm fiber and 50% of the land. The second factor, namely the provision of liquid organic fertilizer of cow urine which consists of 0 ml of cow urine, cow urine of 40 ml, 80 ml of cow urine, cow urine and 120 ml. This study was conducted to determine the effect of oil palm fiber and cow urine, as well as the provision of fiber interactions palm and cow urine on the growth of cocoa seedlings. The results showed the provision of oil palm fiber 0% gives better results than the 25% and 50% in high-seed, stem diameter, number of leaves, dry weight and root length stover. Giving cow urine of 40 ml to 120 ml showed better results than without the provision of cow urine on seedling height, stem diameter, number of leaves, dry weight stover, and root length. In general, oil palm fiber giving no effect on the growth of cocoa seedlings and cow urine giving a dose of 40 ml to 120 ml to give effect to the growth of cocoa seedlings. There is interaction granting palm fiber and cow urine on a number of leaves and length of plant roots.Keywords: cocoa seed, cow urine, fiber palm oilPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/2
Pengaruh Media Pembibitan pada Pertumbuhan Setek Lada (Piper nigrum L.)
Get PDFGrowing medium influence plant growth and development. The purpose of this study was to determine the best growing medium used in the nursery of pepper (Piper nigrum L.). The experiment was conducted by using a randomized block design (RBD) with treatment: P0: subsoil, P1: subsoiland manure (2: 1), P2: subsoil and sand (2: 1), P3: subsoil, manure and sand (2: 1: 1), P4: topsoil, P5: topsoil and manure (2: 1), P6: top soil and sand (2: 1), P7: topsoil, manure and sand (2: 1:1). There are 8 treatment, 4 replicates of each treatment was repeated. Each experimental unit comprises 3 cuttings, cuttings planted each polybag, so there are 32 experimental units  with overall there are 96 polybags. Based on the results of the study there were significant differences among the medium on the growth observed variables: shoot height, number of leaves, shoot diameter, shoot dry weight and root dry weight. Subsoil + manure (2: 1), subsoil + manure + sand (2: 1: 1), topsoil, topsoil + manure (2: 1), topsoil + manure + sand (2: 1: 1) provide good growth on cuttings of pepper, so it can be used in the nursery cuttings pepper.Keywords :pepper cutting, planting medium, seedling growthPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/2
Pengaruh Penggunaan Kompos Pelepah Kelapa Sawit dengan Berbagai Mikroorganisme Lokal (MoL) dan Cara Aplikasinya terhadap Sifat Fisik Tanah dan Produksi Tembakau (Nicotiana tabacum L.)
Get PDFOrganic fertilizer has the advantage of containing nutrients more complete than the inorganic fertilizer albeit in relatively small quantities. In general, organic fertilizers may contribute to improve the physical, chemical, and biological soil. Peneltian purpose compost To determine the effect of palm fronds on the physical properties of the soil (moisture content, bulk density and porosity of the soil) and dry weight of leaf tobacco. The experiment was conducted in September 2015 in State Polytechnic of Lampung experimental  garden, arranged in a randomized block design factorial with bio-activator treatment differences in the way applications compost mixed with soil and on the ground. Soil sampling was take 5 cm above ground. Observations carried out on soil water content, bulk density, porosity of the soil and leaf dry weight. The results showed that compost of oil palm fronds affect the physical properties of the soil, but not significantly different to the dry weight of leaf tobacco.Keywords: compost, soil physical properties, tobaccoPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/1
Pengaruh Pupuk NPK dan Pupuk Organik terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq.) di Main Nursery
Get PDFNPK fertilizer and organic fertilizer on the growth of oil palm seedlings in the main nursery aims to determine a single effect or interaction between the two on the growth of oil palm seedlings in the main nursery. The experiment was conducted at the Polytechnic of Lampung from July 2013 to March 2014. The study used Complete Randomized Design (CRD) factorial, which consists of two factors and each combination was repeated 3 times. The first factor of NPK fertilizer with 3 levels, 100%, 50%, and 25% of the dose recommendation as much as 142 g. The second factor is the dose of organic fertilizer (Organonitrofos) with 3 levels of treatment, without organic fertilizer, 18 g polybag-1, and 36 g polybag-1. Observation variables such as plant height, number of midrib, stem diameter, length of midrib, shoot dry weight, root dry weight and P total. The results showed that NPK fertilizer at the age of 9 months to increase the length midrib, shoot dry weight and root dry weight. Effect of dosage of the best there is at 100%. The combination of NPK fertilizer and organic fertilizer there is an interaction of the dry weight of the roots and the best interaction was achieved by treatment of 50% NPK fertilizer and organic fertilizer 36 g polybag-1.Keywords: NPK fertilizer, oil palm, organonitrofosPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/2