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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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APLIKASI PUPUK ORGANIK DAN BENZILADENIN TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN ROSELA (Hibiscus sabdariffa L.) Budi Santoso; Irsal Irsal; Haryati Haryati
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

This research has been conducted to study the effect of organic matter andbenziladenin aplication on the growth and yield of the roselle. Research wasconducted on Research Center at Tanjung Selamat Village, sub district sunggalwith a height of 57 m above sea level during February-June 2012, using factorialrandomized block design with two factors, they are compost (0, 200, 400g/polybag) and benziladenin (0, 100, 200, 300 cc/l). The parameters observedwere plant height, flowering age, branch number, fruit production per plant, freshweight of fruits per plant, fresh weight of petals per plant, dry weightof petals perplant and seed weight per plant. The result of the research showed that compostsignificantly increased all parameters, bensiladenin significantly increased thebranch number, and interaction of both compost and benziladenine did not showany significant effect on all parameters.

PEMETAAN STATUS HARA K, Ca, Mg TANAH PADA KEBUN KELAPA SAWIT (Elaeis guineensis Jacq) DI PERKEBUNAN RAKYAT KECAMATAN HUTABAYU RAJA KABUPATEN SIMALUNGUN Star Marudur Pangaribuan; Supriadi Supriadi; Sarifuddi Sarifuddi
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Mapping survey in order to classify, analyze and soil mapping by grouping at soils which have thesame characteristics a certain mapping unit. The objective of this research is to mapping of K, Ca,and Mg of soils at people Palm oil estate of Hutabayu Raja, Simalungun District. This researchwas begun in Juni 2011 until Februari 2012. Soil nutrient data obtained through free sampling gridmethod. Mapping and classification using Geographic Information System with criteria nutrientstatus of BPPT (1983) and BPP Medan (2005). The result of research indicate that mediumPotassium,very low Calcium and low Magnesium (0,3 Ha), medium Potassium, very low Calciumand very low Magnesium (204 Ha), high Potassium, very low Calcium and low Magnesium (5 Ha)and high Potassium, very low Calcium and very low Magnesium ( 90 Ha).Keywords : mapping survey, potassium, calcium, magnesium

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

PENGARUH PENGGUNAAN BEBERAPA MULSA PLASTIK dan VARIETAS TERHADAP SERANGAN PENYAKIT ANTRAKNOSA (Colletotrichum capsicii Sydow.) PADA TANAMAN CABAI (Capsicum annum L.) di LAPANGAN Charles E Ginting 1; Mukhtar Iskandar Pinem; Maryani Cyccu Tobing
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

he influence of the use of plastic mulchs and chili varieties on the attack of antracnose(Colletotrichum capsicii Sydow.) on chili plants (Capsicum annum L.) in the field. The aim of the research was to know the appropriate type of mulchs which could be used to curbthe attack of antracnose and which chili varieties are resistant against antracnose. The researchused Cluster Random Design (CRD) Factorial which consisted of two factors and threerepetitions. The first factor was plastic mulchs: non mulch (M0). silver (M1). and black (M2) the second factor was varieties: Lado F1 (V1). Lembang 1 (V2). Tanjung 2 (V3). The resultshowed that silver black mulch was the best to inhibite antracnose (1.08 %) with Lado F1(1.12%) and the highest on no mulch (7.82 %) with Tanjung 2. Interaction of no mulch andTanjung 2 were lowest (1.70%) and the highest (11.46%) on no mulch and Tanjung 2. Thehighest production (0.72 ton/ha) on silver black mulch with Lado F1 (0.63 to/ha) and the loweston no mulch (0.20 ton/ha) with Tanjung 2 (0.17 ton/ha). Interaction of black silver mulch andLado F1 were highest (0.89 ton/ha) and the lowest (0.15 ton/ha) on no mulch and Tanjung 2. Keywords : plastic mulchs. varieties. antracnose. chili.

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.

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