Results in Journal Jurnal Agro Industri Perkebunan: 49
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Jurnal Agro Industri Perkebunan, Volume 5, pp 39-56; doi:10.25181/aip.v5i1.650
In the sugarcane processing into sugar, it will produce g. About 52,9% of liquias, solid, and luquid waste. About 52,9% of liquid waste cause many problems. If the liquid waste directly discharged into the waters, it will cause pollution of water bodies, as well as air pollution around the river. The objective of this study is to obtain the effective and duration activity of the combination of active sludge and sodium bicarbonate in reducing the sugarcane industry of liquid waste. In this research, liquid waste management is done by aerobicized batch system stagnant in laboratory scale with the descriptive analysis. Biodegradation treatment is given to the liquid waste derived from anaerobic ponds in Bunga Mayang Sugar Mill, North Lampung. The treatment is L0 = without treatment (control), L1 = without sludge + 5 g.l-1 sodium bicarbonate, L2 = 100 ml.l-1 active sludge + 5 g.l-1 sodium bicarbonate. The result showed that application of 100 ml.l-1 active sludge + 5 g.l-1 sodium bicarbonate can increase the pH to 7,85, increase DO to 0,16 mg.l-1, reduce COD to 48,18%, increase sulfide content to 90,44%, increase turbidity to 95,4%, increase the wastewater temperature to 35oC, and the time required is shorter than the conventional anaerobic pools. Keywords: active sludge, liqud waste, sodium bicarbonatePermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/650
Jurnal Agro Industri Perkebunan, Volume 7, pp 31-39; doi:10.25181/jaip.v7i1.1051
Efforts to produce good quality cocoa seedling in quality and quantity, ie the use of planting media containing nutrients needed by plants. Topsoil and cocopeat combination are expected to increase the growth of cocoa seedling. The purpose of this study was to to obtain a good soil layer medium planting on the growth of cocoa seedling, to obtain optimum cocopeat on the growth of cocoa seedling, and to obtain the interaction of soil layer medium planting and cocopeat on the growth of cocoa seedlings. This research was conducted in Politeknik Negeri Lampung’s Teaching Farm in January 2017 until June 2017. The experiment was conducted by factorial randomized block design with two factors and each treatment combination was repeated 3 times. The first factor consists of two levels and the second factor consists of four levels. The first factor, namely top soil and sub soil. The second factor is composting cocopeat on planting medium consisting of 0% cocopeat and 100% soil, 25% cocopeat and 75% soil, 50% cocopeat and 50% soil, 75% cocopeat and 25% soil. The results showed that the cocopeat 0%-75% gave the same effect on the high varieties of seedlings, stem diameter, number of leaves, total dry weight, and dry root weight. In general, top soil and sub soil medium planting did not affected on the growth of cocoa seedling and cocopeat did not affected on the growth of cocoa seedling. There was no interaction between media layer of soil and cocopeat in all observation variables.
Jurnal Agro Industri Perkebunan, Volume 7, pp 51-58; doi:10.25181/jaip.v7i1.906
Obstacles factor to get natural rubber raw materials is less efficient for latex processing into concentrated latex, because it need a long time that 2-3 weeks. Centrifugation method many used by concentrated latex factory because it can concentrate the latex with a short relatively time. While the weakness of the centrifugation method is more expensive if that compared with the curdling. With the weakness centrifugation method and curdling, in this research, making the concentrated latex are used vibration method, with the addition of curdle. The purpose of this research is to get the optimum vibrations speed for the concentrated latex manufactured, the speed of the vibrations are used 150 rpm, 175 rpm, 200 rpm, 225 rpm and 250 rpm. The design are used in this research is Randomized Block Design with 6 treatments was repeated 4 times, then obtained 24 units of the experiment, if there is a real difference, then used the BNT at the level of 5% and the data analysis process using Minitab version 16. the most optimum RPM are used in this research is 225 with a quality approaching the standard.
Jurnal Agro Industri Perkebunan, Volume 7, pp 41-49; doi:10.25181/jaip.v7i1.1054
Cotton plants belong to the family Malvaceae with the genus Gossypium. The genus Gossypium is very large containing 50 species. Balittas Malang has a collection of cotton germplasm, about 662 accessions consisting of 642 accessions of G. hirsutum, 14 accessions of G. barbadense, 3 accessions of G. arboreum, and 3 accessions of G. herbaceum. In addition to its ability as a producer of fiber, its seeds can also be utilized as a source of oil and is a secondary production. The purpose of this study was to measure and estimate the genetic diversity of cotton germplasm based on the character of superior quality and quantity of cotton seed oil from several cotton plant genotypes and determine which cotton plants have good quality and quantity of cotton seed oil which is subsequently used as breeding sources & national cotton development elders. To achieve this goal, the experiment was conducted with the experimental method Randomized Block Design (RBD) consisting of 2 replications, 22 germplasm accessions as treatment, and 5 samples in each genotype. The observational parameters are the parameters of oil content quality, oil boiling point, oleic content, and linoleic content. Then the cluster analysis shows that there are 3 cluster analysis groups. Extensive genetic diversity will be beneficial in developing better quality and quantity of cottonseed oil, namely in accession of CRISS-665, CRISS-667, and KANESIA-14 which contribute more than accession of other cotton germplasm to the maximum value of quantity and quality parameters cotton seed oil.
Jurnal Agro Industri Perkebunan, Volume 7, pp 1-9; doi:10.25181/jaip.v7i1.978
This study aimed to obtain the effective dose of isopropylamine glyphosate herbicide for controlling weeds in oil palm plantation andto study the change of weed composition after glyphosate application in early producing oil palm plantation.The research was conducted in smallholder oil palm plantation located in Srimulyo Kenanga Sari Village, Seputih Surabaya Sub-district, Central Lampung Regency and Weed Science Laboratory of Agriculture Faculty, Lampung University from November 2017 to January 2018. This research used randomized block design (RBD) with 4 replications and 7 treatments of 5 isopropylamine glyphosate herbicide doses (1.080, 1.440, 1.800, 2.160, and 2.520 g.ha-1), mechanical weeding, and control. The data homogeneity tested by Bartlett test, the data additivity tested by Tukey test, and the difference of median value tested by the Least Significant Difference (LSD) at 5% level. The results showed that all of isopropylamine glyphosate herbicide doses were effective in controlling total weeds, grassy weeds (Axonopus compressus, Ottochloa nodosa, Imperata cylindrica) and nutsedges (Cyperus rotundus) for 4—12 weeks after application (WAA) and broadleaf weeds (Praxelis clematidea) for 4 WAA. Glyphosate application changed weed composition at 4, 8, and 12 WAA of observations from grassy weeds to broadleaf weeds.
Jurnal Agro Industri Perkebunan, Volume 7, pp 97-105; doi:10.25181/jaip.v7i2.1111
Inventory is an important thing for the industrial company, so determination of order quantity must be done optimally and reduce the inventory cost. PT Keong Nusantara Abadi is an industrial company for processing of nata de coco that requires an inventory control system so that the purchase of raw material becomes optimal. Therefore, this research was conducted to analyze inventory control carried out by PT Keong Nusantara Abadi and determine alternative methods of inventory control of raw material for the company. This research use Material Requirement Planning (MRP) system. MRP system has two ways to determine the order quantity called lot sizing decision. Techniques for determining the quantity of order is Economic Order Quantity (EOQ), Lot for Lot (LFL), and Part Periode Balancing (PPB). The technique of determining the order quantity that is best use by PT Keong Nusantara Abadi is EOQ which result in lower inventory cost than inventory control techniques by the company that is saved by 9%, 10%, 7,3% consecutively during 2015, 2016, and 2017.
Jurnal Agro Industri Perkebunan, Volume 5, pp 123-127; doi:10.25181/jaip.v5i2.600
Productivity and quality of patchouli is influenced by environmental factors especially drought stress. This study aim is to determine application of giant salvinia compost for resolving drought stress on patchouli. This study used a randomized block design and experiment with three replication arranged in factorial 3x4. The first factor is percentage of drought stress 0% (L0), 40% (L1), and 80% (L2). The second factor is application of giant salvinia compost, topsoil 100% (G0), topsoil and giant salvinia compost 1:1 (G1), topsoil and giant salvinia compost 2:1 (G2), and topsoil and giant salvinia compost 3:1 (G3). The result showed that giant salvinia affected increasing on plant height, number of branch, the ratio of root-shoot dry weight, and patchouli oil content. Keywords: growth medium, patchouli oil content, soil moisture
Jurnal Agro Industri Perkebunan, Volume 5, pp 97-106; doi:10.25181/jaip.v5i2.428
Farmer dependence on inorganic fertilizers drives the inclination of the fertilizer price which in turn influence the production cost. Therefore, it is necessary to find alternative way to reduce the consumption of inorganic fertilizers. This study aims to determine the most suitable arbuscular mycorrhiza fungi (AMF) for oil palm seedlings, determining the best dosage of phosphate fertilizer for the growth of oil palm seedlings, and determine whether the growth response of oil palm seedlings to AMF inoculation is influenced by the dosage of P fertilizer given. Research had been conducted in the greenhouse and Plantation Production Laboratory, Faculty of Agriculture, University of Lampung from June 2012 until August 2013. The treatment design used was a factorial design and the experimental design used was a completely randomized block design. The first factor was AMF treatment i.e. control, Entrophospora sp. mv 3 isolate, Glomus sp. mv 9 isolate, Glomus sp. mv 10 isolate, and Glomus sp. mv 15 isolate. The second factor was the dosage of P fertilizer i.e. 23,32 g, 15,66 g, and 11,66 g per plant. Each treatment was repeated 4 times. The results showed that Glomus sp. mv 15 isolate was the most suitable type of AMF for oil palm seedlings. All dosages of P fertilizer tested showed no growth effect on oil palm seedlings and the growth response of oil palm seedlings to inoculation of AMF was not affected by dosage of P fertilizer. Keywords: Entrophospora, Glomus, mycorrhiza, oil palm, phosphate
Jurnal Agro Industri Perkebunan, Volume 5, pp 89-96; doi:10.25181/jaip.v5i2.321
This study was conducted to evaluate the effectiveness and biological activity of Melia azedarach L. (Meliaceae) seed extract against armyworm, Spodoptera litura F. The first instar larvae were fed extract-treated broccoli leaves for 2 days, then were maintained on untreated leaves until the third instar stage. Records were kept in regard to the larvae mortality and developmental time of surviving larvae from the first instar to the third instar. The result showed that M. azedarach L. seed extract at concentration of 50 g.l-1 (5%) exhibited moderate insecticidal activity against S. litura larvae (43,30%-68,33% mortality). Addition of detergent at 0,2% to extract did not increase insecticidal activity of the extract. However, boiling seed extract at concentration of 50 g.l-1 (5%) during 10 until 20 minutes increased insecticidal activity of extract (66,67%-68,33% mortality). Generally, M. azedarach seed extract treatment did not affect on developmental time of S. litura larvae. Keywords: armyworm, biological activity, botanical insecticide, chinaberry tree, extract
Jurnal Agro Industri Perkebunan, Volume 6, pp 79-86; doi:10.25181/jaip.v6i2.778
The tea plantation area in Indonesia is still dominated by tea smallholder estate of 45,17%. This is accompanied also by the growing number of tea agroindustry which increased by 0,83% based on data from the ministry of industry period 2007 to 2013. One of the tea agroindustry that still survive is tea smallholder processing unit of Barokah Farmer Group in Lebak Muncang Village, District Ciwidey Regency Bandung. This study aims to analyze the internal and external factors of the tea smallholder processing units of Barokah Farmer Group. The technique used in this research is case study with the informants include the management of the in tea smallholder processing units in Barokah Farmer Group, the government agency of Bandung Plantation Office. The technique of data collection is done by observation, in-depth interview and documentation. The analysis tools used are IFE Analysis (internal factors evaluation) and EFE (external factor evaluation). The results showed that tea smallholder agro industry of Barokah Farmer Group has a strong internal position where the strengths that have been able to cover the weakness well but have not been able to exploit the opportunities optimally and become very vulnerable to the threat of competition so that tea smallholder agro industry of Barokah Farmer Group is weak in facing the dynamics of the external environment. Keywords: agroindustry, tea smallholder, tea processing unit