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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

Arjuna Subject : -

Articles 943 Documents

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IDENTIFIKASI KARAKTER MORFOLOGI DALAM PENYUSUNAN DESKRIPSI JERUK SIAM (Citrus nobilis) DI BEBERAPA DAERAH KABUPATEN KARO Dedi M. A. L. Tobing; Eva Sartini Bayu; Luthfi A.M. Siregar
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

ABSTRACTIdentification of Morphological Characterisric of Citrus nobilis at Some Areas of Karo District,supervised by EVA SARTINI BAYU and LUTHFI A. M. SIREGAR. Karo district is one of thecentres of citrus production in north Sumatera that have verygood prospect and market potential in ourcountry and overseas, so we need to increase quantity, quality, and continuity. The objective of thisresearch is to identification of morphological characteristic of citrus at Karo district. This research welldone at December 2012 to February 2013 using purposive sampling method. Data obtained fom theinterviews irectly to farmers with some obsevationn on the parameters to be analyzed using thesoftware Minitab 16.The result of this research indicate that morphological characteristic of citrus at 3villages on 37 samples have different morphological characteristic. The higest genetic relationship atC9 and C14 in Kacinambun Village sample (99,89%) and the lowest genetic relationship at A1 and A2 inSuka Village sample (39,44%).Key word : citrus, identification, morphological.

PENGARUH WAKTU PENYIANGAN TERHADAP PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS SORGUM (Sorgum bicolor (L.) Moench) Dewi Hiasinta Tarigan; T. Irmansyah T. Irmansyah; Edison Purba
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

ABSTRACTThis study aims to know the effect of weeding time on the growth and production of some varietiesof sorghum in Pasar 1 street Tanjung Sari, Medan, with ± 25 meters altitude above the sea level inJuly – November 2012. The design use Factorial Separated Design Frame with 2 aspects. The firstaspect as a main frame is variety (Sangkur, Kawali, Numbu) and the second factor as subordinateframe is weeding time (clean weeding during research, weeded after 7 days planting, weeded after 14days planting, weeded after 21 days planting, weeded after 28 days planting, without weedingprocess). The parameters measured were plant height, number of leaves, flowering, canopy wetweight, production per sample, production per plot, the production per ha, the weight of 1000 seeds.From the research, varieties significantly affect on plant height (4-8 weeks after planting), number ofleaves (6 and 8 weeks after planting), flowering, canopy wet weight, production per sample,production per plot, production per hectare, weight 1000 seeds.Weeding time significantly affect onplant height (4-8 weeks after planting) the number of leaves (2-8 weeks after planting), the weight ofthe wet canopy, production per sample, production per plot, production per hectare, the weight of1000 seeds. Interaction significantly affect on the number of leaves 6 weeks after planting.Keywords : sorghum, varieties, and weeding time

RESPONS PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS BAWANG MERAH (Allium ascalonicum L.) DENGAN PEMBERIAN KOMPOS LIMBAH KAKAO PADA TANAH INSEPTISOL Dyanne Gisella P. Tambak; Luthfi Aziz Mahmud Siregar; Rosmayati Rosmayati
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

ABSTRACTGrowth and Yield Responses of some Onion Varieties (Allium ascalonicum L.) with Cocoa WasteCompost on The Inceptisol supervised by Luthfi Aziz Mahmud Siregar and Rosmayati. The studyaimed to know respons of four onion extent on the provision of cocoa waste compost on inceptisol,Research was conducted at campus area Tengku Amir Hamzah University, Pancing. Medan Estate,Deli Serdang (±15 m above sea level) from April -Juli 2012. This study used a randomized blockdesign the frist factors was the variety such as Medan Variety, Maja Variety, Kuning Variety andBali Karet Variety. The second factor was with 4 levels of cocoa waste compost, namely 0 g, 236 g,472 g, and708 g. The data obtained were analyzed using analysis of variance, followed by HonestlySignificant Difference test. The results showed that the varieties significantly of plant height,number of leaves at 2 week after plant,bulbs per sample,fresh weight per sample, dry weight persample, fresh weight per plot, dry weight per plot and harves time.Respons of giving cocoa wastecompost not significantly to all observation parameters. Interaction between varieties and dosescocoa waste compost ot significantlyto all observation parameters.Keywords: onion,cocoa waste compost, varieties, inceptisol soil.

KAJIAN TOTAL BIOMASSA DAN SIMPANAN KARBON RERUMPUTAN SERTA SIFAT FISIKA KIMIA TANAH PADA LAHAN RERUMPUTAN DENGAN KELAS LERENG BERBEDA DI DAERAH TANGKAPAN AIR DANAU TOBA Studi Kasus Kecamatan Silahisabungan Kabupaten Dairi Edy Frans Redoman Nadapdap; Abdul Rauf; Asmarlaili Sahar Hanafiah
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

ABSTRACT“Study of Biomass total and The Grass Carbon Reserves and Charateristhic of soil Chemistry incatchment area of Lake Toba: case study at kecamatan Silahisabungan Kabupaten Dairi”. To knowthe biomass production total and carbon reserves and charateristhic of physical chemistry of soil.This study have been done an December 2011 to March 2013. Samples of soil,biomass, and litterwas taken from three types of slopes, they are quite ramps, wavy and a bit steep. The method ofbiomass measurement is “Destructive sampling method” by cutting over all plants part on the landwith the windth is 2m x 2m. Then separated each part , crots, leaves and trunk and pondered the dryweight. The result of this study showed that the biomass production total on grass land is greaterthan on forest land bur charateristhic of physical chemistry of forest lans was better than the grassland.Keyword : biomass, grass, slope, Toba lake water catchment area

PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS PADI GOGO TERHADAP PEMBERIAN PUPUK ORGANIK CAIR Ellya Ekaristi Tarigan; Jonis Ginting; Meiriani Meiriani
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

ABSTRACTGrowth and Production Some Varieties of Upland Rice with Application Liquid Organic Fertilizer.This research aims to study the growth and production of some varieties of upland rice to liquidorganic fertilizer. The research was conducted in the field UPT BBI, Tanjung Selamat at an altitude± 57 meters above sea level since May 2012 until August 2012 using Randomized Block Design(RBD) factorial with two factors, which are the varieties (Situ Bagendit, Situ Patenggang andTowuti) and liquid organic fertilizer (0, 10, 20, 30 cc/liter). The parameters measured were plantheight, number of tillers, number of panicle, number of empty grain, the amount of grainproductive, productive grain weight, grain 1000 grain weight, and grain production per plot. Theresults showed that the treatment of varieties significantly affect of plant height, number of tillers,number of panicle, productive grain weight, grain 1000 grain weight, and grain production per plot.Liquid organic fertilizer non significant affect to all of parameters. The interaction between thevarieties and liquid organic fertilizer non significant affect to all of the parameters.Keywords: varieties, liquid organic fertilizer, upland rice

EFEK AIR LAUT, ZEOLIT DAN PASIR VULKAN TERHADAP SIFAT KIMIA TANAH GAMBUT Firlana Firlana; Sarifudddin Sarifudddin; Kemala Sari Lubis
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

The objective of this research is to study the effect of sea water, zeolit, and volcanic material onchemical properties of peat soils. This research was conducted at green house, soil chemical andfertility laboratory and research laboratories and technology. This research used factorialrandomized block design with two (2) factors treatments consist of mineral materials (zeolite andvolcanic material) and sea water with three (3) replications. Zeolite and volcanic material were 200gram/pot and 1000 gram/pot. Volume of sea water were 500 ml (+ 1500 ml fresh water) per pot,1000 ml (+ 1000 ml fresh water) per pot dan 1500 ml (+ 500 ml fresh water) per pot. The resultsshowed that application of mineral zeolite and volcanic material influenced significantly increasedof soil acidicity, exchange kalium, exchange calsium, exchange magnesium, number of tillers perclump and number of productive tillers per clump. Volume of sea water influenced significantlyincrease of soil acidicity and electrical conductivity, number of tillers per clump and number ofproductive tillers per clump, but not significantly effect on cation exchange capacity and basesaturation.Keywords : zeolite, volcanic material, sea water, and peat soil

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

RESPONS MORFOLOGI BENIH KARET (Hevea brasiliensis Muell Arg.) TANPA CANGKANG TERHADAP PEMBERIAN PEG 6000 DALAM PENYIMPANAN PADA DUA MASA PENGERINGAN Gustiansyah Perdhana Putra; Charloq Charloq; Jasmani Ginting
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

ABSTRACTMorphological response of shelled rubber seed (Hevea brasilliensis Muell Arg.) by givingPolyethylene Glycol (PEG) 6000 in storage at two drying period. Rubber seeds arerecalcitrant seeds that have a high water content so it can not be stored longer because rapiddeteriorated so it needs special handling to increase storability. PEG 6000 is a compound thatcan help maintain seed viability in storage because has the potential osmoticum, which canlimit the imbibition and diffusion processes. Research purposes was to determine theconcentration of PEG and seed drying time appropriate to improve storability the seeds.Research conducted in the Seed Technology Laboratory, Agricultural Faculty, SumateraUtara University in January to March 2012. Nested factorial experiment was arranged in atwo-stage nested design namely time drying as nested factor (drying time at 00:00 am to06:00 am and 6:00 am to 12:00 am) and PEG 6000 (w/v) concentration factor as sub nest(0%, 15%, 30%, 45% ). Parameters namely observed in seed storage fungal andrecapitulation seeds germinated after storage. The results showed that fungal seeds in storageat a concentration of 15% PEG can reduce up to 13,33% with seed germination to 87,13 %and fungal seeds in storage at drying time at 06:00 am to 12:00 am can reduce up to 6.83%with recapitulation seed germination after storage to 93,74%.Key words: rubber seeds, time drying, PEG 6000

STUDI PERTUMBUHAN DAN PRODUKSI SISTEM TANAM DAN VARIETAS KEDELAI (Glycine max Merrill) DI ANTARA BARISAN TANAM KELAPA SAWIT UMUR 16 TAHUN Hendra Sirait; Lisa Mawarni; Sabar Ginting
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

ABSTRACTThe objective of this research was to study growth and yield of soybean varieties on different plantspacing. This research was done in PTPN 3 Afdeling VII Kebun Rambutan, Sumatera Utara. Usingrandomized block design of two factor were plant spacing (squared and penta) and varieties ofsoybean (Anjasmoro, Nanti). The result showed that plant spacing was significantly effect to plantheight at 3 and 4 WAP (week after planting). Varieties significantly effect to plant height at 4 and 6WAP (week after planting), productivity/plot and weight of 100 seeds. The interaction of plantspacing and varieties significantly effect to leaf number.

RESPONS PERTUMBUHAN BIBIT KAKAO (Theobroma cacao L.) TERHADAP BEBERAPA KOMPOSISI KOMPOS KULIT BUAH KAKAO DENGAN SUBSOIL ULTISOL DAN PUPUK DAUN Henni Fiona Damanik; Jonis Ginting; Irsal Irsal
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

ABSTRACTThe response of cocoa seedlings growth (Theobroma cacao L.) by application some composition ofcocoa waste compost with subsoil ultisol and leaf fertilizer. The research was conducted incommunity land, Tanjung Selamat at analtitude ± 57 meters above sea level since May 2012 untilSeptember 2012 using Randomized Block Design (RDB) factorial with two factors. The first factoris Cocoa Waste Compost with Subsoil Ultisol (25 + 4975, 75 + 4925, 125 + 4875, 175 + 4825, 225+ 4775 g/polybag). The second factor is leaf fertilizer (1, 3, and 5 cc/liter). The Parameter observedincludes plant hight (cm), diameter of stem (mm), leaf area total (cm2), fresh and dry weight ofcrown (g) fresh and dry weight of root (g). The result of reseach showed that planting mediainfluential significantly on plant height and diameter of stem. Present of leaf fertilizer influentialsignificantly on diameter of stem and dry off root. Interaction between planting media present offertilizer not influential significantly on plant height, diameter of stem, total of broad leaf, fresh anddry weight of crown, fresh and dry off root.Key words : cocoa waste compost, leaf fertilizer, cacao, nursery

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