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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 59 Documents

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Search results for , issue "Vol 1, No 4 (2013)" : 59 Documents clear

PENGGUNAAN SUSPENSI Baculovirus TERHADAP Oryctes rhinoceros L. (Coleoptera : Scarabaeidae) DI LABORATORIUM Desmendry Endro Silitonga Desmendry Endro Silitonga; Darma Bakti 2 Darma Bakti 2; Marheni Marheni
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Use suspense of Baculovirus to Oryctes rhinoceros L. (Coleoptera; Scarabaeidae) in the Laboratory.The objective of this research was to know the suitable suspense of baculovirus to larvae in thelaboratory. This research was conducted in the laboratory of pest, Faculty of Agriculture, Universityof North Sumatra, Medan. Research using completely randomized design (CRD) non factorial with5 treatments and 5 replications. The results showed that the highest percentage of larval mortality(P4) (suspense of Baculovirus, 40/1 liter of water) by 48.00 % and the lowest on P0 (control) andP1 (suspense Baculovirus-infected larvae of O. rhinoceros larvae 5/1 liter of water) of 0.00 % and4.00 %. Key words : palm oil, Oryctes rhinoceros, Baculovirus.

PENGARUH PERLAKUAN PEMATAHAN DORMANSI TERHADAP VIABILITAS BENIH AREN (Arenga pinnata Merr.) Manurung, Desy; P. Putri, Lollie Agustina; Bangun, Mbue Kata
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.v1i4.4375

The objective of this research were to study the influence of dormancy breaking methods onsugar palm seed viability. This research was conducted at screenhouse in Agriculture FacultyUniversity of North Sumatera, Medan (± 25 m asl) from June-September 2012, using completelyrandomized design with 8 treatments (control, water soaking 50ºC, 0.1%KNO 0.5%KNO and 0.1%HCl, 0.2%HCl, 0.3%HCl) with 4 replications. The results showed thadormancy breaking methods were significantly effect to axis embryo length (5 week after planted),germinating time, viability, plant height, diameter bar, numbers root, root length, fresh weight, dryweight and were not significantly to axis embryo length 4 WAP, normal sprout, abnormal sproutand the number leaf extent. 3Keywords : dormancy, sugar palm. 3, 0.3%KNO3

RESPON KETAHANAN LIMA VARIETAS CABAI MERAH(Capsicum annum L.) TERHADAP BERBAGAI KONSENTRASI GARAM NaCl MELALUI UJI KECAMBAH Didik Triadi, Didik Triadi; T. Chairunnisa, T. Chairunnisa; Silitong, Sanggam
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.v1i4.4377

The aim of the research was to find out resistance of the five varieties of chili pepperto various concentrations of NaCl salt by Germination Test. The research wasconducted in the seed technology laboratory of the Faculty of Agriculture, Universityof North Sumatera on December 2011. The research used Randomized Block Designwith two factors and three replication. The first factor was variety, consisting of fivevarieties, namely Laris, Mario, TM 007, TM 999, and Hot Star. The second factor wassalt concentration, consisting 4 levels, namely G0(0 ppm), G1 (1000 ppm), G (2000ppm), and G (3000 ppm). The parameters observed in this research were germinationpercentage, germination rate, percentage of normal and abnormal seedlings,percentage of dead seeds, seedling fresh weight and seedling height. The resultsshowed that varieties significantly effected germination rate, percentage of deadseeds, seedling fresh weight and seedling height. While salt concentration did notshow any significant affect on all parameters. It can be concluded that among thevarieties tested, the Mario variety showed best tolerance to NaCl salt, the leasttolerance was Hot Star. 3Keywords : Red Chili, variety, NaCl, germination 2

PENGARUH PEMBERIAN PUPUK PHOSPAT DAN JARAK TANAM TERHADAP PERTUMBUHAN DAN PRODUKSI BENGKUANG (Pachyrhizus erosus (L.) Urban.) Dwi Wahyu Prabowo; T. Chairun Nisa B; Jonathan Ginting
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

This study aimed to determine the most suitable planting distace and dose of phospate fertilizer forthe growth and yield of yam. The reasearch was conducted at Jln. Setia Budi, Simpang Selayang,Medan Tuntungan at ± 25 meters above sea level from April until August 2012. The research usedthe factorial completely randomized block design with two factors, namely phospate fertilizer (0g,5,3g, 10,67g, and 16 g/plot) and planting distance (20x15 cm, 20x20 cm, and 20x25 cm).Parameters observed were plant length, number of branches, tuber weight per sample, tuber weightper plot, tuber diameter , root volume and and harvest index. The results showed that phospatefertilizer treatment did not show any significant effects for all parameters. Longer planting distancesignificantlly increased plant lengths only at 3 and 4 WAP, but not at other ages, and for all otherparameters as well. Similirlly, there was no significant interaction effect of the two treatments for all parameters.Key words : phospate fertilizer, planting distance, yam

PERTUMBUHAN DAN PRODUKSI JAGUNG MANIS (Zea mays sacaratha Sturt. L) PADA BERBAGAI JARAK TANAM DAN WAKTU OLAH TANAH Silaban, Evy Thyrida; Purba, Edison; Ginting, Jasmani
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.v1i4.4383

The aim of the research was to evaluate the growth and production of sweet corn (Zea mayssacharata Sturt. L) planted at various distance and land preparation (soil tillage prior to planting).The treatments were arranged in split plot design with three replication. The study consists of twofactors, as main plot was time of soil tillage prior to planting (one and seven days) whereas sub plotwas planting distance consist of four different spaces : 70cm x 10cm, 70cm x 20cm,70cm x 30cm dan 70cm x 40cm. Result showed that the plant spacing consists of 70cm x40cm performs significant effect on number of leaves, stem diameter, cob diameter, and productionper plant, but not significant effect on flowering time and number of cobs per plot. The interactionbetween time of planting and planting space had no significant effect on plant height, number ofleaves, stem diameter, days to flowering, cob diameter, number of cobs per plot, weight of cobs perplot and production per plant.Keywords: sweet corn, plant spacing and tillage time

SURVEI FAKTOR KULTUR TEKNIS TERHADAP PERKEMBANGAN POPULASI HAMA PENGGEREK BUAH KOPI Hyphotenemus hampei Ferr (Coleoptera:Scolytidae). DI KABUPATEN SIMALUNGUN Fitri Ace Samosir; Mena Uly Tarigan; Syarial oemry Syarial oemry
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Fitri Ace Samosir, "Survey of Progress Against Technical Factors Population Culture Pest Fruit Borer CoffeeHyphotenemus hampei Ferr. (Coleoptera: Scolytidae) in the District Simalungun " under the guidance of MenaUly Tarigan and Syarial Oemry. This research intends to determine the population of the coffee fruit borer H.hampei in some coffee plantations in the Kingdom Simalungun are Raya District, Pane District, Purba District.This research used quantitative analysis of the correlation Population Correlation H. hampei ( X) with theintensity of the attacks on coffee plants ( Y) and correlation with the population of the coffee plantmaintenance H. hampei. The results showed that there were differences in population and the intensity of thecoffee fruit borer attack H. hampei in the district of Simalungun due to differences in height. Population of H.hampei in the Raya District is 148.83 pest, in the Pane District pests as much as 145.20 and 24.10 in the districtof Purba as pests. Intensity of attacks in the Raya District H.hampei at 83.50%, in the Pane District at 88.83%,and in the Purba District of 26.83%.Keywords: Coffee plant and Hyphotenemus hampei Ferr.

INDEKS KEANEKARAGAMAN JENIS SERANGGA PADA PERTANAMAN KELAPA SAWIT (Elaeis guineensis Jacq.) DI KEBUN HELVETIA PT. PERKEBUNAN NUSANTARA II Gevit R Tambunan; Mena Uly Tarigan; Lisnawita Lisnawita
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Insect Species Diversity Index in Oil Palm (Elaeis guineensis Jacq.) Planting in Helvetia Estate, PT.Perkebunan Nusantara II. The purpose of this study was to find out the insect species diversity index inoil palm (Elaeis guineensis Jacq.) planting in Helvetia Estate, PT. Perkebunan Nusantara II. This surveystudy was conducted from June to August 2101 in Helvetia Estate, PT. Perkebunan Nusantara II, DeliSerdang District with the altitude of ± 23 meters above sea level. The insects were caught by busingsweep net, pit fall trap, and light trap, then they were observed at the Plant Pest and Disease Laboratory,Faculty of Agriculture, University of Sumatera Utara. The result of this study showed that 298 insectsconsisting of 9 orders and 29 families were trapped and caught in the oil palm plantation area which hasproduced and 367 insects consisting of 10 orders and 34 families were trapped and caught in the oil palmplantation area which has not produced.The value of Insect Species Diversity Index according to thehighest Shanon-Weiner (H’) in the oil palm plantation area which has produced is 2.9276 (adequate) andin the oil palm plantation area which has not produced is 2.9848 (adequate). While the value ofSorensen’s Quotien of Similarity for the kinds of insects in both areas is 79.365%.Keywords: Diversity index, oil palm, insect

UJI TOLERANSI BEBERAPA VARIETAS PADI (Oryz Halimatussakdiah Halimatussakdiah; Luthfi A. M. Siregar
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The objective of this study is to have a reliable variety to extend on an used cultivated land. Thisresearch was carried out on an used cultivated land as fish pond with salty sulfate contained onKecamatan Percut Sei Tuan in a height site ± 2 m asl with its coastal far distance ± 1 km, has DHL6.5 - 6.8 and pH 4.1 – 4.6. The research adopted group random design with 18 varieties of rice asplant to test. The parameter to analyze such as height of plant, number of saplings, number ofproductive saplings, length of grains, numbers of grains, number of decomposed grains, grainsproduction and wet weight and dried weight of roots.The result of research indicated amongst different of varieties as tested showed a significantdifferent on all parameter as analyzed. Out of 18 varieties that has been tested were found 12varieties survivable, whereas the varieties prospective to extend on the used cultivated land locationwith salty sulfate such as Banyuasin, Dendang, Siak Raya, Punggur and Lambur regions.Keywords : tolerated test, rice, salty sulfate

PENGUJIAN RESPONS PERTUMBUHAN BEBERAPA VARIETAS PADI SAWAH (Oryza sativa L.) AKIBAT CEKAMAN SALINITAS Herti Folarida Hutajulu; Rosmayati Rosmayati; Syafruddin Ilyas
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Growth Response Testing of Several Rice Varieties (Oryza sativa L.) Caused of Salinity. In theSub-District Percut Sei Tuan there are around 700 hectares more area paddy fields that can becategorized as has been affected by sea water (is 1-2 km to coast). The production rice fields in thearea was around 2-3 tons per hectare with using varieties Ciherang and Mekongga. But varietiesCiherang have potential result8.5 tonnes/ha with result average 6.0 tonnes/ha in the non- salinity.The problem is to be a basic idea how to increase production the be examined back some varietiesthat had been found varieties that not only could but critical market result in standard national resultrice that is 6.0 ton/ha.This study aims to determine the growth response of some rice varieties due tosalinity stress. The study was conducted in the Village of Tanjung Rejo, Hamlet Paluh Merbau, Sub-District Percut Sei Tuan, Deli Serdang Regency with altitude of 1.5 meters above sea level in April-September 2012 using a Randomized Block Design with eight varieties of rice plant (Ciherang, IR64 , Lambur, Batanghari, Banyuasin, IR 42, Inpari 10 and Margasari) with 3 replication. Parameter isobserved germination, salt injury, plant height, number of tillers, leaf chlorophyll, leaf area, numberof productive tillers, panicle length, number of grains contains per panicle, number of grains perpanicle empty, grain weight per plot, and 1000 grain weight. The results showed that Ciherangvarieties and Banyuasin is highly tolerant to salinity. Banyuasin and Batanghari production per plothad the highest and lowest are IR 64 varieties and Inpari 10 varieties.Keywords: salinity, varieties, paddy.

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.).

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