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All Journal AGROEKOTEKNOLOGI JURNAL ILMU PERTANIAN PERTANIAN TROPIK

Bintang Sitorus

Universitas Sumatera Utara

Author-ID : 382865

Agriculture, Biological Sciences & Forestry

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EVALUASI KEMAMPUAN LAHAN DESA SIHITONG, SINAR SABUNGAN DAN LUMBAN LOBU KABUPATEN TOBA SAMOSIR Sitohang, Julpan Lynneus; Sitorus, Bintang; Sembiring, Mariani
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v1i4.4391

Land capability evaluation is an evaluation of land potential for use of various farmingsystems in general without specifying the allocation to certain crops and management actions. Theresearch was conducted in April of 2012. The purpose of this study was to determine the landcapability class on Sihiong, Sinar Sabungan and Lumban Lobu Village Toba Samosir Distric withthe method of limiting factors and matching according to land capability class Arsyad (1989).Analysis of the soil such as soil texture, permeability, bulk density, salinity and organic material areconducted in the Laboratory of Research and Technology, Faculty of Agriculture, University ofNorth Sumatra and field observations such as slope, erosion factors, soil depth, drainage, gravel /rock and inundation / flood hazard. The results showed that areas Sihiong, Sinar Sabungan andLumban Lobu has actual land capability class is the same class III (es), Class III is in which landcan be used for the production of crops and forests, (es) an limiting factor on erosion and the depthof the root zone or soil (solum). So the capability class of potential land become III (s), which (s) isa limiting factor on the rooting area only.Keywords: evaluation of land capability, survey, BPS Tobasa

Karakteristik Kimia Biochar dari Beberapa Biomassa dan Metode Pirolisis Y Prasetiyo; Benny Hidayat; Bintang Sitorus
AGRIUM: Jurnal Ilmu Pertanian Vol 23, No 1 (2020)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v23i1.5653

Pemanfaatan biochar dalam pengelolaan lahan masih sangat jarang dilakukan dan kualitas biochar yang tergolong rendah. Hal tersebut dapat diatasi dengan memproduksi biochar dengan teknologi pirolisis yang baik. Penelitian ini bertujuan untuk mengetahui karakteristik biochar dari beberapa biomassa dengan beberapa metode pirolisis. Penelitian ini menggunakan teknologi pirolisis dengan metode manual, metode kiln, dan metode Retort. Penelitian dilaksanakan di Lahan Fakultas Pertanian Universitas Sumatera Utara, serta Laboratorium Riset dan Teknologi, Fakultas Pertanian, Universitas Sumatera Utara, Medan. Hasil penelitian menunjukkan bahwa persentase karbon tertinggi pada biochar jerami metode Retort sebesar 43.73%, pH tertinggi pada biochar jerami dan biochar kotoran sapi metode kiln masing masing sebesar 10,64 dan 10,56. Kandungan N tertinggi pada biochar kotoran sapi metode Retort sebesar 3,2%, Pospor pada biochar limbah kayu sebesar 0.46%, dan Kalium pada biochar jerami sapi metode kiln sebesar 6.4%.

EVALUASI KESESUAIAN LAHAN UNTUK TANAMAN APEL DI DESA SIHIONGKECAMATAN BONATUA LUNASI KABUPATEN TOBA SAMOSIR Carlos Samuel; Bintang Sitorus; Supriadi Supriadi
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The objective of this research is to evaluate the land suitability for Apple Trees at Sihiong Village,Bonatua Lunasi Subdistrict, Toba Samosir District. The results of this study showed that 11 soilmap units found based on the map of soil and the map of topography, and than it makes to overlay.The evaluation of land suitability classes based on the criteria given by Resesarch Center,IPBBogor 1983 and the evaluation method is limitation method based on FAO 1976. The results ofthis research showed that the highest actual of land suitability classes is land mapping unit two (S3nr,eh) and the highest potential of land suitability classes is land mapping unit 1,3,5,7,8,10,11 (S1)Keywords: land suitability evaluation,apples, sihiong village

PERUBAHAN SIFAT KIMIA ANDISOL AKIBAT PEMBERIAN SILIKAT DAN PUPUK P UNTUK MENINGKATKAN PRODUKSI KENTANG (Solanum tuberosum L.) Ina Santa Santa Monica Br Sembiring; Mukhlis Mukhlis; Bintang Sitorus
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Field research was conducted applied Agrosil as silicate material and Phosphorus fertilizer forpotato plant to determine the changes of chemical characteristics of Andisols and yield of potato.This research used Factorial Blocky Randomized Design with treatment Si dosage 0 kg SiO2/ha(S0), 750 kg SiO2/ha (S1), 1500 kg SiO2/ha (S2), 2250 kg SiO2/ha (S3), and P fertilizer dosage 0 kgP2O5/ha (P0), 90 kg P2O5/ha (P1), 180 kg P2O5/ha (P2), 270 kg P2O5/ha (P3), so there are sixteencombination and three blocks, so there are fourty eight units treatments. This result showed thatapplied Agrosil could increase soil pH, SiO2 available and decrease P retention. Applied Agrosilcould increase weight and amount of class A tuber(> 100 g/tuber) with the best dosage 1500 kgSiO2/ha at S2 treatment. This research useful to solve the problem phosphate available in Andisolsoil.Keywords: Chemical Characteristics of Andisols, Agrosil and Phosphorus Fertilizer, Yield ofPotato(Solanum tuberosum L.).

PEMBERIAN BAHAN ORGANIK DAN JENIS AIR PENYIRAM TERHADAP SIFAT FISIK TANAH ULTISOL DAN PRODUKSI TANAMAN ROSELLA (Hibiscus sabdariffa L.) Gorretty Simanjuntak; Bintang Sitorus; Hardy Guchi
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

ABSTRACTThe objective of this research is to know the effect of the application of organic matter and kinds ofwater used on the physical characteristic of Ultisol and growth of Rosella plant(Hibiscus sabdariffa L). The research was conducted at compost centre, the screen house, and atChemistry and Fertility Laboratory, Research and Technology Laboratory, Faculty of Agriculture,USU Medan from May until November 2012. The design used was randomized block design(RBD) which consits of 2 (two) factors, Factor 1: Organic Matter (M) with 4 types: M0 = control,M1 = Ultisol 90% + shell 5% + compost of dust 5% , M2 = Ultisol 90% + shell 5% + compost ofstubbles 5% , M3 = Ultisol 90% + shell 5% + compost of corn 5%. Factor 2: Kinds of water used(A) with 3 (three) levels: A0 = water, A1 = the iron of water, A2 = urine, and 2 (two) replication tomeet 24 experimental units. The result of this research showed that organic matter decreased bulkdensity, increased of growth plant but did not effect the content of soil water level and productionof Rosella plant, kind of water increased soil water level but did not effect descrease bulk density,growth and production of Rosella plant and interaction of both treatmets increased growth of plantas 3 MST but did not affect physical characteristic of Ultisol and production of Rosella plant.Keywords: chemical property of ultisol, organic matter, kind of water used, and productionof rosella plant

EFEK INTERAKSI PEMBERIAN SILIKAT DAN MIKORIZA PADA ANDISOL TERHADAP P-TERSEDIA DAN PERTUMBUHAN TANAMAN JAGUNG (Zea mays L.) Nurmaya Ginting; Lahuddin Musa; Bintang Sitorus
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

The objective of this research is to know the interaction effects of Silicate and Mycorrhizaapplication to Andisol on the phosphorus and maize growth. The experiment was conducted at thescreen house, at Laboratory of Chemistry and Soil Fertility, and Research and TechnologyLaboratory, Faculty of Agriculture, University of North Sumatera, Medan from July until December2012 . Andisol soil was taken from horticultural farms at Kuta Rakyat Village, Naman Teran Subdistrict, Karo District. The design used was Randomized Block Design (RBD) with 3 replicationand 2 (two) factors, namely Silicate (Si) consists which of 5 level: Si0(control), Si1(0.89 g/4 kg soil)Si2(1.78 g/4 kg of soil), Si3(2.67 g/4 kg soil), Si4(3.56 g/4 kg soil) and Mycorrhiza factor (Mi),which consists of three levels, that is: Mi0 (0 g/4 kg soil), Mi1(15 g/4 kg soil) Mi2(30 g /4 kg soil)and 3(three) replication to meet 45 experimental units. The results of this research showed thatapplication of Silicate on Andisol without mycorrhizal and higher dosage did not increase Pabsorptionand corn growth, while Silicate application at medium dosage (15 g/4 kg soil) increasedP-Available, P-absorption and corn growthKeywords: andisols, silicate, mycorrhiza and P-available

Pemberian Bahan Organik Kompos Jerami Padi dan Abu Sekam Padi dalam Memperbaiki Sifat Kimian Tanah Ultisol Serta Pertumbuhan Tanaman Jagung Maulana Azomy Pane; M. M. B. Damanik; Bintang Sitorus
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The Objective of this study is determine the effect of rice straw compost and rice ash on somechemical properties of Ultisol and its effect on the growth of corn plants. The research was done ingauze house and Research and Technology Laboratory, Agricultural Faculty, University of NorthSumatera, Medan from May until July 2013. The study used randomized block design consits of twofactors with three replications. The first factor are rice sraw compost consist of four dosage level(g/5 kg dry oven soil weight) : K0 (0), K1 (25), K2 (50), K3 (75) and the second factore are rice ashconsist of four dosage level (g/5 kg dry oven soil weight) : M0 (0), M1 (10), M2 (20), M3 (30).Theresults showed that the effect of aplication of rice straw compost significantly increased soil Corganic,P-available, plant height, dry weight of a plant, plant N uptake, and plant P uptake but notsignificantly effect the soil pH and N-total of soil, aplication of rice ash significantly increased soilC-organic and plant N uptake but not significantly increased the soil pH, P-available, N-total of soil,plant hight, dry weight plant and plant P uptake.Keyword: ultisol, rice straw compost, rice ash

Evaluasi Kesesuaian Lahan Untuk Tanaman Ubi Kayu (Manihot esculenta crant) di Desa Petuaran Hilir Kecamatan Pegajahan Kab. Serdang Bedagai Antonius Juswanto; Bintang Sitorus; M. M. B. Damanik
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The purpose of the study was to find out the land suitability classes in Petuaran Hilir villagePegajahan sub district Serdang Bedagai Regency for cassava. Obtained by 2 SPT (set of land) whatis determined by pursuant to map of land and ground type, map of inclination of slope fromtopography map with the scale 1 : 5000, is later conducted by overlay. Assessment of landsuitability pursuant to staff criterion center the research of land of bogor (1993) using landevaluation method with comparing (matching). The result of analysis showed the unity of allthe sample has appropriate class of land actual at set of land (SPT) 1 is S3(nr) and class of landpotential is S2 (rc). Class of land The actual and suitability classes Soil Map Unit (SPT)2 is S2(wa,rc, nr, er) and potential and suitability classS2(rc).Keywords:suitability of land, Cassava,Petuaran hilir village

Kajian Kesuburan Tanah di Desa Sihiong, Sinar Sabungan dan Lumban Lobu Kecamatan Bonatua Lunasi Kabupaten Toba Samosir Rino P. C. Purba; Bintang Sitorus; Mariani Sembiring
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

This study aims to examine the fertility of the soil in the Sihiong Village, Sinar Sabungan Villageand Lumban Lobu Village, Bonatua Lunasi Subdistricts, Toba Samosir District. This research wasconducted in Sihiong Village, Sinar Sabungan Village and Lumban Lobu Village, SubdistrictsBonatua Lunasi, District Toba Samosir and Laboratory analysis of samples carried out in Researchand Technology, Faculty of Agriculture, University of North Sumatra. The method used in thisstudy is a survey method to make observations on the soil profile and on each layer of the soilhorizon to compare the soil fertility.The soil in the village Sihiong have a somewhat acidic soil pH,organic matter content is moderate, moderate cation exchange capacity capability, very low basesaturation while high levels of total soil ferrum. The soil in the Village Sinar Sabungan have acidicsoil pH, organic matter content is moderate, the ability of the cation exchange capacity of themedium, which is very low base saturation while high levels of total soil ferrum. The soil fertility inthe village of Lumban Lobu have acidic soil pH, organic matter content is moderate, the ability ofthe cation exchange capacity of the medium, which is very low base saturation while high levels oftotal soil ferrum.Keyword: Sihiong village soil profile, Sinar Sabungan village soil profile, Lumban Lobu villagesoil profile

Pengaruh Interaksi Bahan Mineral dan Bahan Organik Terhadap Sifat Kimia Ultisol dan Produksi Tanaman Sawi Elva Rizkya Masni; Bintang Sitorus; Purba Marpaung
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

This study aimed to test the chemical properties of Ultisol and Brassica production by a combination of organic matter and minerals. This research was conducted at the gauze house, Compost Centre, and Research Technology Laboratory, Agriculture Faculty, University of North Sumatra, Medan. The research was conducted from September 2014 until May 2015. The research design used a randomized block design (RAK) by 2 factors treatments and two replications. The first factor is a mineral, M1: ash 250 g / 5 kg soil and M2: portland cement 62.5 g / 5 Kg of soil. The second factor (organic matters) are compost of durian skin by kefir activator (O1), compost of durian skin by yogurt activator (O2), compost of bagasse by kefir activator (O3), compost of bagasse by yogurt activator (O4), compost of sweet potato canopy by kefir activator (O5), compost of sweet potato canopy by yogurt activator (O6), compost of market waste by kefir activator (O7) and compost of market waste by yogurt activators (O8) each of all was 250 g / 5 kg soil. The results showed that organic matter gived significantly effect to increased plant fresh weight. But the effect was not significant to roots fresh weight, soil reaction (pH H2O) and C-organic. Mineral treatments gived significantly to increased the soil reaction (pH H2O). But the effect was not significant to plant fresh weight, root fresh weight and C-organic. Interactions of both treatments gived significantly to increased the soil reaction parameters (pH H2O) of all parameters observed.Key words :Ultisol, organic matters, minerals, brassica

Co-Authors Abdul Rauf Antonius Juswanto Benny Hidayat Carlos Samuel Dicky Alamsyah Pulungan Elva Rizkya Masni Gorretty Simanjuntak Hardy Guchi Ina Santa Santa Monica Br Sembiring Irsal Jamilah Jamilah Juriaman Purba Lahuddin Musa M. M. B. Damanik Mariani sembiring Marta Ritonga Maulana Azomy Pane Mukhlis, Mukhlis Nurmaya Ginting Posma Marbun Purba Marpaung Rino P. C. Purba Sarifuddin Sarifuddin Siahaan, Aditya Johandry Siska Diannita Simanungkalit Sitohang, Julpan Lynneus Sumina Silaban Supriadi Supriadi Susianti Susianti Marbun Vidiya Novelin Lubis Y Prasetiyo

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