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AGROEKOTEKNOLOGI

agroekoteknologi
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Published by Universitas Sumatera Utara

ISSN : 23376597 EISSN : - DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Jurnal AGROEKOTEKNOLOGI merupakan jurnal ilmiah yang diterbitkan secara online berisikan hasil-hasil penelitian tentang hama dan penyakit tumbuhan, agronomi, pemuliaan tanaman dan ilmu tanah

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Articles 943 Documents

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Klasifikasi Inceptisol Pada Ketinggian Tempat yang Berbeda di Kecamatan Lintong Nihuta Kabupaten Hasundutan Samuel Evans Ketaren; Posma Marbun; Purba Marpaung
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

This research aims to classify inceptisol soil at sub-district of Lintong Ni Huta, Regency ofHumbang Hasudutan on the various elevation. On the elevation of 1200-1300, 1300-1400, 1400-1500, and >1500m on above sea level. The sampling of soil was took at 3 soil profile holes on FieldMap unit and Key to Soil Taxonomy 2010 . Of the result of this research, it obtain the classification ofprofile 1, 2, and 3 with Ordo, Sub Ordo, and Great Groupin the same is Inceptisol, Udept,and Dystrudept. OnSub Group category the classification of profile 1 is Psammentic Dystrudept. On Sub Group category theclassification of profile 2 is Pachic Dystrudept. On Sub Group category the classification of profile 3 isFluventic Dystrudept.Key words : Various elevation, Inceptisol

Campuran Tulang Sapi Dengan Asam Organik Untuk Meningkatkan PTersedia dan Pertumbuhan Tanaman Jagung di Inceptisol Andi Pratama; Mukhlis Mukhlis; T. Sabrina
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The research aimed to determine the effect of a mixture of cow bone ash with organic acids on Pavailable inceptisol soil and growth of maize (Zea mays L.). The research was conducted in thegreenhouse and analyzed in the laboratory of research and technology of Agriculture Faculty ofNorth Sumatera University of Medan from May-October 2013. The research design was nonfactorialrandomized block design consisting of 13 treatments with 3 replications that is: Control,T1K (cow bone ash 166.7 g), T1S1 (cow bone ash 166.7 g + citric acid 2% 500.1 mL), T1A1 (cowbone ash 166.7 g + acetic acid 2% 500.1 mL), T1L1 (cow bone ash 166.7 g + lactic acid 2%500.1mL), T2K (cow bone ash 333.4 g), T2S2 (cow bone ash 333.4 g + citric acid 2% 1000.2 mL),T2A2 (cow bone ash 333.4 g + acetic acid 2% 1000.2 mL), T2L2 (cow bone ash 333.4 g + lactic acid2% 1000.2 mL), T3K (cow bone ash 500.1 g), T3S3 (cow bone ash 500.1 g + citric acid 2% 1500.3mL), T3A3 (cow bone ash 500.1 g + acetic acid 2% 1500.3 mL), dan T3L3 (cow bone ash 500.1 g +lactic acid 2% 1500.3 mL).The result of research indicated that application of 500.1 g cow bone ash+ citric 1000.2 mL citric acid 2% was the highest increasing soil pH (6.78), P available (20 ppm),P-uptake of plants (0.26 g P/plant), plant shoot dry weight (51.66 g), plant root dry weight (14.23),and plant height (187.27 cm) compared with other treatments.Keywords: Cow Bone, Organic Acid, Phosphate, Inceptisol

Evaluasi Kesesuaian Lahan Kabupaten Dairi Untuk Tanaman Kopi Robusta (Coffea robusta Lindl.) Muhammad Nazarul Yanis; Hardy Guchi; Mariani Sembiring
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

This research purposed to evaluate the suitability of land for cultivation of robusta coffee in Dairiwith altitude at 400 - 1700 m above sea level . This research started from May 2013 to November2013. The research conducted by taking a sample soil based by method free survey grid with detailof survey level and then analyzed on the laboratory and land evaluation performed by the matchingmethod is based on plants needed with properties owned by land on any limiting factors. Theparameters observed in the field are soil depth, drainage, slope, the dangers of erosion, the dangersof flood, the rock surface and laboratory parameters analyzed include physical properties, textureand chemical properties of the soil pH, soil cation exchanges capacity, base saturation, C-organic,and soil salinity. The results showed that the actual land suitability classes for sample 1 is S2rc,nr,sample 2 is S3nr, sample 3 is S2oa,rc,nr,eh, sample 4 is S3nr,eh, sample 5 is S3nr, sample 6 is S3nr,sample 7 is Nrc, sample 8 is S3nr, sample 9 is S3tc,rc,nr, sample 10 is S3tc, sample 11 is S3nr,sample 12 is S3tc,oa,rc,nr, sample 13 is S3tc,nr, sample 14 is S3tc,rc, sample 15 is S3tc,nr,uh, andsample 16 is Nrc. Potential land suitability classes for sample 1 is S2rc, sample 2 is S2rc,nr, sample3 is S2rc, sample 4 is S2rc,nr,eh, sample 5 is S2rc,nr, sample 6 is S3rc,nr, sample 7 is Nrc, sample 8is S2rc,nr, sample 9 is S3tc,rc, sample 10 is S3tc, sample 11 is S2rc,nr, sample 12 is S3tc,rc, sample13 is S3tc, sample 14 is S3tc,rc, sample 15 is S3tc, and sample 16 is Nrc.Keywords : Land Evaluation, Dairi Regency, Robusta Coffe

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

Respon Pertumbuhan dan Produksi Sawi Hijau Terhadap Pemberian Pupuk Organik Kascing Berlian Limbong; Lollie Agustina P. Putri; Emmy Harso Kardhinata
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The aimed of this reaserch was to determine the respon of growth and production of mustard(Brassica rapa L.) on the application of organic fertilizers. The research was conducted on the farmfield with ± 25 meters above sea level from Mei to June 2013. Randomized Block Design was usedwith 2 factors, ie: varieties (Green Pakchoy and White Pakchoy) and organic fertilizers (0, 200, 300,400, 500 (g/polybag). The parameters observed were plant height, The number of leaf, leaf area, thebiomass weight of plant, the fresh weight of selling and the harvest index.The result of theobservations showed that varieties have significantly affected of plant height and the number ofleaf. while the organik fertilizer give significant effect to all of the parameters observed.Key word : mustard, variety, organic fertilizers

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

Uji Pengaruh Beberapa Herbisida Terhadap Trichoderma sp Secara in Vitro Muhammad Majid; Hasanuddin Hasanuddin; Mukhtar Iskandar Pinem
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

In Vitro Test on the Effect of Some Herbicides Application towards Trichoderma sp. This research’sobjective is to study effect of herbicide ingredient with different concentration to growth of myceliumcolony and spore density of Trichoderma sp. Trichoderma sp was inoculated in PDA which havebeen added with six different herbicide ingredients, there are paraquat, glyphosate, fenoxaprop-ethyl,triclopyr, 2,4D, and fluroxypyr at three different concentrations, there are 100%, 75%, and 50% fromrecommended concentration. This research was conducted from May until October 2013 atPhytopathology Laboratory, Agriculture Faculty, University of Sumatera Utara, by using factorialcompletely randomized design with three replications. The result have showed that highest extensiveof mycelium colonywas observed at fluroxypyr 50% concentration, meanwhile the lowest extensive ofmycelium colony was observed at glyphosate 50% concentration. Highest spore density wasobservedat fluroxypyr 50% concentration , meanwhile the lowest spore density was observed at paraquat 100%concentration. Herbicide ingredient interaction with concentration of herbicide very significantlyaffected growth of mycelium colony and spore density of Trichoderma sp.Keywords: Trichodermasp, herbicide, biological agent

Pengaruh Metode Strafikasi Suhu Rendah, Krioprotektan Dan Kriopreservasi Terhadap Viabilitas Benih Rosela (Hibiscus sabdariffa L.) Dede Suhendra,; Haryati Haryati; Luthfi A. M. Siregar
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The objective of the research was to know effect of treatment low temperature, cryoprotectants,cryopreservation and it’s combination to seed viability of rosele. The research was conducted at theSeed Technology Laboratory, Agriculture Faculty, University of Sumatera Utara, Medan withheight ± 25 meters above sea level, in January to February 2014, using a randomized block designwith 5 level low temperature stratification, cryoprotectants and cryopreservation treatment as wellcombination and control. Parameters observed were moisture content seed (%), germination rate(day), germination normal (%), abnormal sprouts (%), seeds die (%), vigor index (%), wet weight ofsprouts (g), dry weight of sprouts (g). The results showed that rosele seed viability using liquidnitrogen significantly different than without giving liquid nitrogen, provision cryoprotectants andcooling rate -5°C temperature before it immersed in liquid nitrogen not were optimal.Keywords: seed rosele, low temperature stratification, cryoprotectans, cryopreservation

Uji Korelasi Antara Debit Aliran Sungai dan Konsentrasi Sedimen Melayang pada Muara Sub DAS Padang di Kota Tebing Tinggi Rian Asnul Maulana; Kemala Sari Lubis; Posma Marbun
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Knowing about the problem of Watershed is very important to manage the river environment. Oneof the indicator to know the watershed problem is concentration of suspend load sediment.Thisresearch conduct to observe about relationship between stream flow debit and Suspend Load ofSediment which influenced hydrologic condition on Padang Hilir sub Watershed. This researchconduct to from May until October 2013 at Padang Hilir Sub Watershed, use a survey method withrandom sampling. Water sampling is taken out for three times in a week at after rain or no rain forsix months so that total water sample as much as 82 sample. The result show that concentration ofload sediment at no rain measure have highest value in October as big as 256,67 mg/L (worse)and the lowest in July as big as 43,3 mg/L (good),meanwhile at after rain and no rain measurehave highest value at August for 416,67 mg/L (very worse) and the lowest in July as big as 25mg/L (good). At no and after rain relationship betwen concentration of suspend load sediment andstream flow showed by equation : Y = 74,721 + 0,895x with signification value was 0,023 anddetermination value (r2) was 0,014 ( very weak). Meanwhile at not rain relationship betwenconcentration of suspend load sediment on stream flow regression showed by equation :Y = 28,741 +0,030x with stream flow signification value as big as 0,046 and determination value(r2) was 0,065 (weak).Key words : Padang Sub Watershed, stream flow, concentration of suspend load sedimen.

Pengaruh Komposisi Media Tanam dan Pemberian Limbah Cair Pabrik Kelapa Sawit Kolam Aerob Terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq.) di Pre-Nursery Firman K. Manurung; Jonatan Ginting; Toga Simanungkalit
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The availability of top soil as an oil palm sead plant media is very limited, so to contend it is usedsub soil plant media which more available and easier to get it, but it has bad chemicalcharacteristics. Application Oil Palm Empty Bunch (OPEB) compost or Palm Oil Liquid Waste ofaerobic pond is expected to bost growth of Palm Seed (Elaeis guineensis Jacq.).This research hadbeen conducted at Net House of Agriculture Faculty, North Sumatera University in October 2013until January 2014,, using factorial randomized block design with two factor i.e. composition ofplanting media (90% Sub-soil + 10% OPEB compost, 80% Sub-soil + 20% OPEB compost, 70%Sub-soil + 30% OPEB compost, and 100% Top-soil) and Palm Oil Liquid Waste (0, 1, 2, and 3litre/plant).Parameter observed were plant’s height, stem diameter, number of leaf, total leaf area,volume of root, upper part fresh weight, root weight, upper part dry weight, dry root weight. Theresult showed composition of planting media on palm seed give no real effect to all of parameterobserved.Application of Oil Palm Liquid Waste significantly affect the parameter number of upperpart fresh weight and root weight. Interaction of both do not give a real effect to all of parameterobserved. The best result from this experimental were obtained in the treatment of compositionplanting media at 70% Sub-soil + 30 OPEB compost and application of Palm Oil Liquid Waste at 3litre/plant.Keywords: Planting Media, Palm Oil Liquid Waste, Oil Palm Seed

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