Articles

PENERAPAN KRITERIA KEMANTAPAN KAWASAN KESATUAN PENGELOLAAN HUTAN LINDUNG (KPHL) UNIT XIV TOBA SAMOSIR Simarmata, Intan Yusarga Virnalisi; Qomar, Nurul; Sribudiani, Evi
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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The purpose of this study was to find out the application of area stability criteria of Protected Forest Management Unit (PFMU) of Unit XIV Toba Samosir and to find out the factors that influence the performance of PFMU Unit XIV Toba Samosir in area stabilization. This study was used criteria and indicator from Forest Watch Indonesia version 1.0. Data collection was done through documentation studies, field observations and in depth interviews. Data analysis was done by giving an assessment of each quality element of each indicator. The results showed that the average of assessed criterias was 2,166 which was in sufficient range, which means PFMU Unit XIV Toba Samosir was quite good at carrying out its functions as a forest management unit at the site level. The factors that influence the development performance of PFMU Unit XIV Toba Samosir in area stabilization was forest land tenure conflict with the community around the PFMU Unit XIV Toba Samosir area which caused the absence of boundary arrangements throughout the perimeter of the forest area, human resources that were inadequate in conflicts resolution and the implementation of socialization to the community, and management funds are still limited. Keywords: application, area stability, criteria, KPHL  
WAKTU POTENSIAL APLIKASI MIKORIZA DAN Trichoderma spp. PADA MEDIUM GAMBUT UNTUK MENINGKATKAN PERTUMBUHAN SEMAI MERANTI TEMBAGA (Shorea leprosula Miq.) Sari, Aulia; Mardhiansyah, M.; Sribudiani, Evi
PEST Tropical Journal Vol 1, No 1 (2014)
Publisher : PEST Tropical Journal

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Shorea leprosula Miq. is a major timber producing trees and importantcommodity in Indonesia. To get a good quality of Shorea leprosula Miq. shouldbe using proper cultivation techniques. Peat soils potential for growth Shorealeprosula Miq.. Mycorrhiza and Trichoderma spp. can assist the process ofdecomposition of peat soil and improve seedling growth, but need to know thepotential time to apply. This study aims to determine the potential time to applymycorrhizal and Trichoderma spp. in peat medium to boost growth seeds ofShorea leprosula Miq.. This study using a completely randomized design (CRD)consisting of 5 treatments and 10 replications. The treatments used were : T1 =Trichoderma spp. on S-5 and mycorrhiza on S-1, T2 = Trichoderma spp. on S-3and mycorrhiza on S-1, T3 = Trichoderma spp. and mycorrhiza on S-1 , T4 =Trichoderma spp. on S-1 and mycorrhiza on S-3, T5 = Trichoderma spp. on S-1and mycorrhiza on S-5, where S = seedlings were transferred to polybags aftertreatment. Responses were measured to observe the effect of treatments are thesurvival rate of seedlings, seedling height, diameter of the root seedling, plant dryweight and the ratio of crown/root. The results obtained from this study indicatedthat the time of application of Trichoderma spp. at 1 (one) day prior to weaningand mycorrhiza on three (3) days prior to weaning tended to show better results onShorea leprosula Miq. seedling growth.Keywords: Shorea leprosula Miq., Trichoderma spp., Mycorrhizal, peat medium
Utilization of Wood Waste Mahang (Macaranga sp.) From Sawmill Industry For Making Wood Vinegar Sutrisno, Lis; Sulaeman, Rudianda; Sribudiani, Evi
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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ABSTRACT Wood vinegar is the result of condensation and combustion products directly or indirectly. One of the methodes to make wood vinegar is by condensing the smoke products of incomplete combustion (pyrolysis). Materials used for the manufacture of wood vinegar is mahang wood waste from the sawmill industry in the form of sawdust, shavings and slashes. This study aims to determine how much rendement, chemical constituents of  wood  vinegar (phenol, total acid and pH) as well as the colors of the various forms of raw materials. This experiment was carried out using a completely randomited design (CRD) consist of 3 treatments and 5 replications with parameters analyzed were rendement, chemical content and color wood vinegar produced. These results indicate that the form of raw materials affect rendement, chemical content, and color. Sawdust (C1) rendement yield of 14.66 %, phenol content of 15,48 mg/l, total acid of 5,08 %, pH of 2,1 and color of wood vinegar is yellow light brown. Chips (C2) rendement yield of 20,67 %, phenol content of 18,61 mg/l, total acid of 5,78 %, pH of 2,0 and color of wood vinegar is yellow brown. Slashes (C3) rendement yield of 38,98 %, phenol content of 18,80 mg/l, amount 7,72 % total acid, pH of 1,9 and color of wood vinegar is yellow dark brown. Recommended for more efficient utilization of wood waste mahang (Macaranga sp.). As materials are shaped blade of wood vinegar, because it has the highest rendement and good quality wood vinegar. Keywords: Wood Vinegar, Waste, Wood Mahang, Rendement.
Efficiency Of Steam Production Analysis At Pulp And Paper Industry Sribudiani, Evi; ', Marlina; ', Sudarmalik
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Companies must be able to regulate the allocation of factors of production to increase productivity and improve production. The aim of this research are : 1) to know calculation of steam production cost, 2) to know the most factors that influence the production of steam, 3) to know efficiency of steam production cost. Research location is at PT. Indah Kiat Pulp and Paper. The sample was taken from steam production cost on Januari 2010 until December 2010. Data was analyzed with doubled-linier regression analysis with Cobb-Douglas production function, analysis of the costs, analysis of factors affecting the production of steam production and analysis of efficiency. The result showed that 1) total cost of steam production per month is Rp2.864.159.747,64, 2) from the doubled-linier regression analysis is known only bark variable that significantly affected to the production of steam, 3) from the analysis of efficiency is obtained that the use of bark,diesel oil, and heavy oil is efficient for steam production, it was 283,3%. Keywords : steam production, efficiency, production factors
Estimation Of The Carbon Potential In The Above Ground At The Stand Level Poles And Trees In Sentajo Protected Forest Sribudiani, Evi; ', Pebriandi; ', Mukhamadun
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Natural forest has many ecological functions which plays a vital role in preserving the ecosystem balance. One of them is to stabilize the climatic condition. This is linked with the forest capability to absorb carbondioxide in the photosynthesis process. The more carbondioxide absorbed and stored in the form of biomass carbon, the more it reduces greenhouse gas effect in the atmosphere. This research aimed to obtain information about the value of biomass and carbon content in the Sentajo Protected Forest. Above ground biomass estimation was done by establishing nine plots with the size 20 m x 20 m. Trees with dbh ≥ 10 cm were recorded in terms of diameter and identification species. Tree biomass was estimated by employing Ketterings et al, (2001). Sentajo Protected Forest  region has great potential in storing carbon stocks. The study results showed that carbon contain in Sentajo Protected Forest is 223,177 ton/ha.   Keywords : forest, carbon, biomass.
Inventarisasi Permudaan Meranti (Shorea spp.) Pada Arboretum Kawasan Universitas Riau Kota Pekanbaru Provinsi Riau Wahyu, Elvan; Sribudiani, Evi; Arlita, Tuti
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Meranti (Shorea spp.) is an important commodity which is one of the major timber producing commercial plants in Indonesia. In worldwide trading, meranti group is divided into four major groups, namely: group of red meranti, yellow meranti group, white meranti group and group of turvy meranti. Purpose of the implementation of this study was to determine the availability, amount, and regeneration dominance of meranti (Shorea spp.) as well as a tree diagram in the profile Riau University Arboretum area. Techniques of data collection is done by using the method purposive sampling or transect lines. Entire observation contains regeneration sample plots, namely regeneration meranti much as 9 rods (2.76%) while  the  317  rods  (97.24%)  are  type  of  non  meranti.  Meranti  Shorea parvistipulata Heim  and  Shorea  parvifolia were found.  INP  at  a rate  of 0% seedling, sapling rate of 2.28%, 15.20% for poles and tree level of 57.03%.   Keyword : inventore, regeneration, meranti, arboretum
Efektifitas Bahan Pengawet Dari Asap Cair Tandan Kosong Kelapa Sawit (Elaeis guineensis) Terhadap Serangan Rayap (Coptotermes curvignathus Holmgren) Pada Kayu Pulai (Alstonia scholaris) Sulaeman, Rudianda; Sribudiani, Evi; ', Annahyan
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Pulai wood have economic value, while durable grade is V and powerful class is IV-V and it is low-grade durable, because of that it is needed preservation on Pulai wood. Many Preservation using chemicals that are harmful to environment and humans. In utilizing natural ingredients derived from plants as safer alternative preservatives for environment and humans, it can be renewable for preserving wood from invading organisms wood destroying, especially termites. Materials used as a preservative is liquid smoke empty fruit bunches of oil palm. The aims of this research are to determine termite mortality, retention, weight lose, and water content as well as know the effectiveness of the provision of liquid smoke on Pulai wood preservation against termite attack. The methods used in this research is (RAL), the concentration of liquid smoke oil palm empty fruit bunches of 0%, 10%, 20%, and 30% with 5 replications for three weeks is fed on termites. The results showed that using of preservatives smoke liquid at concentrations of 30% has a value of lose weight on Pulai wood of 0.00g/cm3 and 100% termite mortality. Key word: Liquid Smoke, TKKS, Preservative, Pulai Wood And Coptotermes Curvignathus   Holmgren.
Pemanfaatan Pelepah Kelapa Sawit (Elaeis guenensisjacq. ) Sebagai Bahan Baku Pembuatan Briket Arang Yusuf, Muhammad; Sulaeman, Rudianda; Sribudiani, Evi
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Midribof palm oilis one of thewasteoil palm plantationthat have notbeen used.Midrib of the coconut palm has a huge potential to be used as raw material for the manufacture of charcoal briquettes. Midrib of palm oil will be processed more intensively so that would be expected to reduce petroleum consumption. Charcoal is a porous solids containing 85-95% carbon produced from materials containing carbon by heating at high temperature. Utilization ofmidrib of palm oilasthe manufacture ofcharcoalbriquettescanbe usedtoreplaceconventionalfuelsscarceinits availabilityin nature, so thecharcoalbriquetteswithpalmmidribrawmaterialscanbe usedas analternative fuel.Makingcharcoalstartingfrompreparation of raw materials, carbonization, size reduction, mixingwithadhesive, printing, drying, andtesting, withthreedifferent treatments arethe treatmentsof charcoalwithnonsieveflour, flourtreatmentpulverizedcharcoalwith50meshsieve, andcharcoalpowdertreatmentsmoothedwith a70meshsieve. Tests oncharcoalbriquettesreferto theSNI. Keywords: Midrib of oil palm, Charcoal briquettes, treatment, SNI.
Selling Price of Acacia Log Analysis by Approaching The Production Cost of Plantation Forest Nurcan, Refdanil; Sribudiani, Evi; ', Sudarmalik
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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The low of price Acacia log is caused by coorperative operation betweenplantation forest with forest product industry in implementation on PermenhutP.29/2012. The aims of the study were to know: determinant factors and costproduction of Acacia mangium and Acacia crassicarpa plantation forest, the priceof A. mangium and A. crassicarpa log based by cost production, and the financialanalysis of plantation forest used the price log based on production cost ofplantation forest and actual price of log Acacia. Reasearch is conducted in AraraAbadi Company in Distric of Rasau Kuning and Pusaka. Data analysis is usedproduction cost of plantation forest at 3th and 4th rotation are land clearing,seedling, planting, weeding, harvesting, tansporting and potential stands. This dataused to find the price of Acacia log in industry. The actual price of Acacia inmarket was got from interview. Data analysis used the financial analysis byparameters Net Present Value, Benefit Cost Ratio, and Internal Rate of Return.The assumtion of study used interest rate (15%) and plantation forest bussines (5years). The result of study showed that the determinant factors are purchasementof seed, land potential, salary of planting, salary of over cultivate take, salary ofwood cut and cost carry to pile place of log and salary of cultivate KCa. Theproduction cost and the log price of A. crassicarpa plantation forest is higher thanA. mangium. The plantation forest is financially feasible but happenned todecrease to the next rotation.Keywords: plantation forest, analysis financial, Acacia mangium,Acacia crassicarpa
SEBARAN DAN PERKIRAAN PRODUKSI PAKAN GAJAH SUMATERA (Elephas maximus sumatranus Temminck.) DI SEKITAR DURI KECAMATAN MANDAU KABUPATEN BENGKALIS Fadillah, Rahmad; Yoza, Defri; Sribudiani, Evi
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 2 (2014): Wisuda Oktober 2014
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Sumatra’s Elephant (Elephas maximus sumatranus) including one of the endangered animals and is the largest animal is still alive and could only be encountered on the island of Sumatra. Form of elephant population dynamics influenced food availability, water availability and mineral salts. The results showed that the sign of Sumatra’s Elephant often encountered in the area of ​​plantations, secondary forests and shrubs. Estimates as many that 49 elephant dung and 2450 pellets with an area of ​​0.02 km² transect. Elephant population density as much as 0,966 head/0,02km2. Estimates of the total number of Sumatran Elephants using dung circumference measurement method (dung) Is estimated at about 20 head. Feed plants identified as many that 29 species of elephants consisting of 16 family. Plant seedlings elephants feed as many that 11 species and 18 herbaceous species. Plants that are found for levels of herbaceous Poaceae and Asteraceae tribe while the seedlings are found plants belonging to the family Myrtaceae, Moraceae, and Euphorbiaceae. Elephant feed production as much as 11,108 kg / ha. Elephant feed requirements with an approximate calculation of the number of elephants 0,48 head / ha requires feed 144 kg / ha. Keywords: elephant, location, population, feed.