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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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Uji Efektifitas Jamur Entomopatogen Beauveria bassiana (Bals.) dan Metarrhizium anisopliae (Metch) terhadap Chilo sacchariphagus Boj. (Lepidoptera : Pyralidae) di Laboratorium Nova Berta Sianturi; Yuswani Pangestiningsih; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The objective of this research was to know the effectivity of entomopathogenic fungi B. bassianadan M. anisopliae to C. sacchariphagus with different concentration levels. This research wasconducted at the Laboratory of Pest, Agroecotechnology Program Study, Faculty of Agriculture,University of North Sumatera, with altitude ±25 m asl from February until March 2014. Themethod used Randomized Completely Design non factorial which consist of 7 treatments and 3replication. The treatments consist of : T0 (Control), T1(B. bassiana 30gr/1l water), T2 (B. bassiana40gr/1l water), T3 (B.bassiana 50 gr/1l water), T4 (M. anisopliae 30gr/1l water), T5 (M. anisopliae40gr/1l water), T6 (M. anisopliae 50gr/1l water). Parameters measured were percentage mortalitylarva and the change of morphology larva. The result showed that the most effective B. bassiana isthe treatment T2 dan T3 by 73.33% and 86.67% and the most effective M. anisopliae is thetreatment of T5 dan T6 by 86.67% and 100.00%. The observation of the change of morphology oflarva C. sacchariphagus was as the following: the movement of larva C. sacchariphagus becameslow (lazy), the body of the larva was weakening dead and hardening, and finally was covered bydifferent colors of mycelium, i.e. B. bassiana was covered by and mycelium white M. anisopliaewas covered by green mycelium.Key words: Beauveria bassiana, Chilo sacchariphagus, Metarrhizium anisopliae, sugar cane

Respon Pertumbuhan Bibit Kakao (Theobroma cacao L.) terhadap Pemberian Pupuk Kandang Ayam dan Pupuk Organik Cair Liperi Tarigan; Ferry Ezra Sitepu; Ratna Rosanty Lahay
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

One of the factors that determine the quality of cocoa seedlings is fertility of growing medium.Fertility of growing medium can be increase with fertilization. For that purpose by using of chickenmanure and liquid organic fertilizer be expected to increase cocoa seedlings. This research wasconducted in experimental field of Agriculture Faculty University of North Sumatera in June 2013-September 2013 using randomize complete block design with two factors. The first factor is dose ofchicken manure (0,150 and 300 g/polibag) and the second factor is dose of liquid organic fertilizer(0,15,30, and 45 cc/L of water). Parameters observed were plant height, number of leaves, stemdiameter,total leaves area, fresh weight of shoot, fresh weight of root, dry weight of shoot, dryweight of root and ratio of dry weight of shoot/dry weight of root. From the research, chikenmanure significantly affect on plant height (12 and 14 WAP), number of leaves( 8-12 WAP), stemdiameter, total leaves area, fresh weight of canopy, dry weight of canopy and fresh weight of root.Liquid organic fertilizer unsignificantly affect on all parameters. Interaction of chiken manure andliquid organic fertilizer unsignificantly affect on all parameters. The best result from thisexperimental were obtained in the treatment of chicken manure at 300 g/polybag and liquid organicfertilizer 15 cc /L of water .

Uji Efektivitas Protein Hidrolisat Ikan Cucut (Carcharhinus sp.), Naktar dan Beauveria bassiana Untuk Mengendalikan lalat Buah (Bactrocera dorsalis complex) (Diptera: Tephtritidae) di Laboratorium Immanuel Sembiring; Maryani Cyccu Tobing; Lahmuddin Lubis; Mirasiska Tarigan
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The effectivity of swordfish protein hydrolysis, nectar and biological agent (Beauveria bassiana) tocontrol fruit flies (Bractocera dorsalis complex).The objectives of research was to study the abilityof protein hydrolysis swordfish, nectar and Beauveria bassiana to control fruit flies (Bractoceradorsalis complex). In the research was held at Laboratory of Agricultural Research andDevelopment of Fruit Crops Experimental Garden Plants Berastagi, Kecamatan Dolat Rayat,Kabupaten Karo (in 1.340 meters). The method used Randomized Complete Design with twofactors and three replications. The first factor was protein hydrolysis concentrate (0 % /liter nectar +Beauveria bassiana, 25 % /liter of nectar + Beauveria bassiana,50 % /liter of nectar + Beauveriabassiana, 75 % /liter of nectar + Beauveria bassiana, 100 % /liter of nectar hydrolysis + Beauveriabassiana) and the second factor was infection technic (male and female feed, male feed and femalefeed). The results showed that infection technic and protein hydrolysis concentrate significantlyeffected the percentage of fruit fly mortality. The highest percentage (93,33%) 75 % /liter of nectar+ Beauveria bassiana on male and female feed, and the lowest (70,00%) 50 % /liter of nectar +Beauveria bassiana on male feed.Keywords :Fruit fly, protein hydrolysis, nectar, Beauveria bassiana

Metil Bromida (CH3Br) Sebagai Fumigan Hama Gudang Areca Nut Weevil (Araecerus fascicullatus De Geer) (Coleoptera : Anthribidae) Pada Biji Pinang Nirza Okta Yudistira; Darma Bakti; Fatimah Zahara
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

This research aimed to know the apropriate concentration for controlling A. fasciculatus on severaldose and time exposure. This research was conducted in shading house of agriculture quarantinemain centre, Belawan Gedung Johor, ± 25 m above sea level, started on February to April 2014.This research used randomized complete design, with two factors and three the replicate, firts factorwas replication dose of Methyl Bromide (0 g/m3, 24 g/m3, 32g/m3and 40 g/m3) and second wastimeexposure ( 2 hours, 4 hours and 12 hours). The result showed that dose and time exposure of MethylBromide so significantly affected to mortality percentage, as well as interaction between twofactors. The best result showed on D3 (dose 40 g/m3) with mortality rate 85,16% and T3 (exposuretime 6 hours) with mortality rate 51,09%.Keywords :Fumigation, A. fascicullatus, Methyl Bromide, Areca nut

Keanekaragaman Jenis Serangga Di Berbagai Tipe Lahan Sawah Anna Sari Siregar; Darma Bakti; Fatimah Zahara
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The objective of this research was to study the diversity of insects on corn, snake and rice and toknow the kind of insect diversity in various type of farms rice field. This research was conductid atKampung Susuk dan Pest Laboratory Faculty of Agriculture, University of North Sumatra, Medan,started in January 2014 until Februari 2014. This research used 3 kinds of traps insect (Sweep Net,Pitfall Trap, Light Trap).The result of research showed that each insect caught consisted of 6 Ordoand16 families in corn with the highest relative density values was 7,69% and the lowest was4,61%, the highest relative density values in rice is 20,8 % and the lowest was 12,5%, the highestrelative density values in snake was 12.1% and the lowest was 9,75%. Shanon-Weiner (H’) indexdiversity value of insect in corn was 2,368 (medium), in rice was 1,822(medium) and in snake was2,258 (medium).Keywords :Diversity, Insect, Farm Type Rice Field

Pemberian Amelioran Terhadap Status Hara, Pertumbuhan dan Produksi Padi di Lahan Gambut Dataran Tinggi Muhammad Fikri Ridho; Sarifuddin Sarifuddin; Alida Lubis
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

This study aims to determine the effect of volcanic sand, sea water and zeolite to nutrient status,growth and yield of dendang rice variety. This research was conducted in highlands peat inHutabagasan, Dolok Sanggul Sub-District Humbang Hasundutan Regency, North Sumatera. Thisstudy used non factorial randomized block design with four treatments are G0 (control), G1(Volcanic sand 5 kg). G2 (Volcanic sand 5 kg + Sea water 2.5 L), G3 (Volcanic sand 5 kg + Seawater 2.5 L + Zeolite 1 kg) and 3 replicants. The treatments G2 and G3 can increase soil electricalconductivity. G3 treatment may act as soil pH buffer. Applications all ameliorant decrease on thenumber of tillers and productive tillers, plant and root dry weight and number of grains each panicleKeywords: Ameliorant, Peat soil, Sea water, Volcanic sand, Zeolite,

Respons Pertumbuhan dan Produksi Tanaman Semangka (Citrullus vulgaris Schard.) terhadap Pemberian Giberelin dan Pupuk TSP Zaura Makhliza; Ferry Ezra T. Sitepu; Haryati Haryati
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The objective of this experiment is to determine the respons in growth and yield of watermelon(Citrullus vulgaris Schard.) to Gibberellins and TSP fertilizer. This experiment was conducted atland of Pasar I Street No. 89, Tanjung Sari, Medan with the level approximately ± 25 inabove sea level, starting from May to December 2013 using factorial randomized block design withtwo factor, i.e. gibberellin (0, 100, 200 and 300 ppm) and TSP fertilizer (60, 80and 100 g/plant). Parameter observed were plant height, days to flowering, weight of fruit andnumber of seed. The result showed that gibberellin concentration affect significantly to the numberof seed and weight of fruit and giving up to 200 ppm gibberellin treatment on fertilizer TSP 80g/plant significantly speed up the age of harvesting.Keywords : gibberellin, TSP fertilizer, watermelon

Keragaan Beberapa Varietas Pak Choi (Brassica rapa L. ssp. chinensis (L.)) pada Dua Jenis Larutan Hara dengan Metode Hidroponik Terapung Wendy Yoditya Utomo; Eva Sartini Bayu; Isman Nuriadi
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Pak choi (Brassica rapa L. ssp. chinensis (L.)) is a leaf vegetable which has a high commercialvalue. Pak choi generally grown in highlands with low temperatures. Lately, many farmers inlowland who interestedcultivate pak choi.Lowlands generally a densely populated area. Hydroponicis an appropriate technology that can be used in a confined area.This research aimed to look at somevarieties of pak choi performance in two kinds of nutrient solution with floating hydroponictechnology. The levels of varieties wereWhite Tropical, Green, and Green Tropica Corina andnutrient solutionswere Peckenpaugh and Resh. The treatments were arranged in split plotdesign(SPD) and each treatment was made in four repetition.The results showed that Peckenpaughnutrient gives better effect on number of leaves at 3 (6,40 strands)and 5 (6,83 strands) weeks afterplanted, and on fresh weight per sample (11,97 g). White Tropical variety gives better effect onfresh weight per sample (13,12 g)and chlorophyll content (19,88 unit/3.8-1”).Keyword: Pak choi, Varieties, Nutrients, Hydroponic

Pertumbuhan dan Produksi Jagung Manis (Zea mays saccharata Sturt.) Pada Beberapa Persiapan Tanah dan Jarak Tanam Oimolala Lindungan Larosa hidayat; Toga Simanungkalit; Sengli Damanik
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Attempts to increase the yield of sweet corn can be done with soil preparation and plant spacing.The purpose of the study was to determine the some appropriate soil preparation and an axact plantspacing to increase the growth and production of sweet corn. The research was implemented in thecommunity land located at Tanjung Sari number 89, Medan with the height of 25 metres above sealevel. began from February until May 2013. The design of the research was a randomized blockdesign factorial with two factors. The first factor was soil preparation (no tillage, minimum tillage,traditional tillage) and the second was plant spacing (20x30, 30x30, 40x30, 50x30 centimeter). Theparameters measured were plant height, diameter of stalk, the weight of root brangkasan , theweight of stalk brangkasan, the weight of leaf brangkasan, the weight of cob brangkasan, the weightof weed dry, net assimilation increase, plant growth increase. The results showed that soilpreparation significantly affected plant height, diameter of stalk, the weight of root brangkasan, theweight of stalk brangkasan, the weight of leaf brangkasan, the weight of weed dry Euphorbia hirtaand the weight of weed dry Cynodon dactylon. Plant spacing significantly affected the weight ofstalk brangkasan, the weight of leaf brangkasan, the weight of weed dry Euphorbia hirta andinteraction significantly affected the weight of cob brangkasan.Keywords : Sweet corn varieties bonanza, soil preparation, plant spacing.

Pengaruh Kedalaman Tanam, Nitrogen dan Aplikasi Parakuat terhadap Pertumbuhan Eleusine Indica L. Gaertn Biotip Resisten- dan Sensitif-Parakuat Christian Tampubolon; Edison Purba; T. Chairun Nisa B.
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Goosegrass (Eleusine indica) is one among the weeds which is commonly found in agriculturefields and public areas. This research aims to determine the effect of burial depth of seeds onseedling emergence, nitrogen, and paraquat on the growth of paraquat-resistant(ETS) and -susceptible (EFH) biotypes of E. indica. This research was carried out in 3 experiment unitsnamely; the comparison of seedling emergence of E. indica paraquat -resistant and -susceptiblebiotypes at 5 burial depths namely 0, 2.5, 5, 7.5 , and 10 cm. Secondly, the growth response ofE. indica paraquat –resistant and –susceptible biotypes at 3 doses namely 0, 200, dan 400 kg ha-1.Thirdly, the effect of paraquat on the growth of E. indica paraquat -resistant and -susceptiblebiotypes at 7 doses namely 0, 50, 100, 200, 400, 800, 1600 g a.i. ha-1. Non factorial randomisedblock design (RBD) with three replication was used for each unit of experiment. The resultsshowed that the burial depth significantly reduced number of seedling emerged. Nitrogensignificantly increased number of tillers of ETS and EFH biotypes and dry weight of ETS biotypebut not on the dry weight of EFH of biotype, the number of panicles and seeds for ETS and EFHbiotypes. Paraquat significantly reduced the number of plant survival that survive and dry weight ofEFH biotype but it was not on the dry weight of ETS biotype.Keyword : Eleusine indica, burial depth, nitrogen, paraquat, paraquat -resistant and -susceptible

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