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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 56 Documents

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Search results for , issue "Vol 3, No 1 (2015)" : 56 Documents clear

UJI DAYA PREDASI Forficula sp. (Dermaptera : Forficulidae) dan Dolichoderus sp. (Hymenoptera : Formicidae) TERHADAP HAMA PERUSAK PUCUK KELAPA Brontispa Longissima Gestro (Coleoptera : Chrysomelidae) di LABORATORIUM Dona Monica Br Bangun; Syahrial Oemry; Mukhtar Iskandar Pinem
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Coressponding author : E-mail : bangundona@ymail.comABSTRACTResearch on title the predation ability of Forficula sp. (Dermaptera : Forficulidae) andDolichoderus sp. (Hymenoptera : Formicidae) of Brontispa Longissima Gestro.(Coleoptera : Chrysomelidae) in laboratory aimed to study the predation ability of Forficula sp.and Dolichoderus sp. of Brontispa longissima Gestro (Coleoptera : Chrysomelidae) in Laboratory.The experiment design was randomized complete design with 8 treatments and 3 replications.The tested treatment were larvae and imago of B. longissima, 2 Forficula sp, 2 Dolichoderus sp,1 Forficula sp and 1 Dolichoderus sp on 10 larvaes/stoples and 2 Forficula sp, 2 Dolichoderus sp,1 Forficula sp and 1 Dolichoderus sp on 10 imagoes/stoples with. The result showed thatpercentage of mortality and the predators behavior. The results showed that the highest percentageof mortality on P1 (2 Forficula sp. on 10 larvaes/stoples) was 96.67% and the lowest onP01 (larvae control) was 0% and the result showed that Forficula sp. prey mechanism begins withthe introduction of active antenna movement then using forcep (cerci) captureBrontispa longissima Gestro and predator prey Dolichoderus sp. way starts with the runningapproaching pest predators and prey circling approach as the larvae begins to feed through the bodysurface.Keywords : predation, B. longissima Gestro, percentage mortality

RESPONS PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.) TERHADAP PEMBERIAN VERMIKOMPOS DAN URINE KELINCI Anita Lydia Beta Simamora; Toga Simanungkalit; Jonis Ginting
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

ABSTRACTResponse in Growth and Yield of Shallot (Allium ascalonicum L.) on Giving Vermicompost andRabbit Urine. The use of chemical fertilizersis an alternative that is often selected farmers toincrease the production of shallot. Because of that giving of vermicompost and rabbit urine is expectedto replace the role of chemical fertilizers in increasing the growth and production of shallot. Thisresearch had been conducted at Farm Resident on street Pasar I number 89 Tanjung Sari, Medanfrom May until July 2013 using factorial randomized block design with two factor, i.e. dose ofvermicompost (0, 15, 30 and 45 g vermicompost/plant) and dose of rabbit urine (0, 125 and 250 cc/l).Parameter observed were plant height, tillers number per clump, leaves number per clump, clovenumber per sample, wet weight tuber per sample, wet weight tuber per plot, dry weight tuber persample, and dry weight tuber per plot. The result showed that vermicompost treatment not significantlyaffected all of parameter observed. Rabbit urine treatment increase plant height, tillers number perclump, clove number per sample, wet weight tuber per sample, wet weight tuber per plot, dry weighttuber per sample, and dry weight tuber per plot. The treatment interaction significantly effected onparameters tillers number per clump and clove number per sample. The best result were showed byvermicompost treatment 15 g/plant and rabbit urine treatment 250 cc/l.Keywords : Vermicompost, rabbit urine, shallot

RESPONS PEMBERIAN PUPUK ORGANIK CAIR DAN NPK PADA TANAMAN BIWA ( Eriobotrya japonica Lindl. ) DI MAIN NURSERY Mery Susana Tarigan; Asil Barus; Fatiani Manik
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

ABSTRACTResponse of Giving Liquid Organic Fertilizer and NPK At Biwa Plant (Eriobotrya japonica Lindl.) Inthe Main Nursery. Biwa plant nurseries face constraints in fertilizer recommendation. Thereforethrough liquid organic fertilizer and NPK plant is expected to boost growth in the nursery biwa.Research conducted at the Experiment Berastagi in March - June, 2013, using a factorial randomizedblock design with two factors: the concentration of organic manure (0, 5, 10 ml / L) and NPK fertilizerdoses (0, 5, 10 and 15 g / polybag ). The parameters measured were plant height, stem diameter, crownwidth, of the number of leaves, number of leaf chlorophyle and total leaf area. The results showed thatthe liquid fertilizer oganik significant effect on the amount of leaf chlorophyll but not significant effecton other parameters. NPK fertilizer significant effect on plant height, stem diameter, crown width, of thenumber of leaves, and total leaf area. Their interaction effect was not significant on all variablesobservations. The best results from this study were obtained in the treatment of liquid organic fertilizer10ml / L and 5 g of NPK fertilizer / polybag.Keywords: nursery, organic liquid fertilizer, NPK fertilizer, biwa.

TANGGAP PERTUMBUHAN VEGETATIF BIBIT KAKAO (Theobroma cacao L.) DENGAN PEMBERIAN VERMIKOMPOS DAN AIR PADA BERBAGAI KAPASITAS LAPANG Ichsan Destari Purba; Irsal Irsal; Jasmani jasmani
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

ABSTRACTResponse of cacao (Theobroma cacao L.) seedlings vegetative growth with the provision ofvermicompost and water at various field capacity. Research aim to know the response of cacaoseedlings vegetative growth with the provision of vermicompost and water at various field capacity.It was conducted at green house, Faculty of Agriculture USU’st about 25 m sea level on November2012 to February 2013 by using a randomized block design factorial with two factor that is the firstfactor were vermicompost (0%, 10%, 20% and 30% of media plant) and the second factor wereprovision of water at various field capacity (100%, 75%, 50% and 25%). The parameters observedwere seedling height, stem diameter, total of leaf area, seedling wet weight, seedling dry weight,root wet weight, root dry weight and water use efficiency. The result of research showed thatvermicompost significant to seedling height, stem diameter, total of leaf area, seedling wet weight,seedling dry weight, root wet weight, root dry weight and water use efficiency. And provision ofwater significant to seedling height, stem diameter, total of leaf area, seedling wet weight, root wetweight and water use efficiency. The interaction of vermicompost and water had not signifficantKey words : cacao, vermicompost, water

DAYA PREDASI Rhynocoris fuscipes F. (Hemiptera:Reduviidae) TERHADAP ULAT API Setothosea asigna E. (Lepidoptera:Limacodidae) DI LABORATORIUM Edi Kembaren; Darma Bakti; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

ABSTRACTThe Ability of Rhynocoris fuscipes F. (Hemiptera: Reduviidae) to nettle caterpillar Setothoseaasigna E. (lepidoptera: limacocidae) as a predator in the laboratory, it was under supervised byProf. Dr. Ir. Darma Bakti, MS. and Ir. Lahmuddin Lubis, MP. The research was to know the abilityof R. fuscipes to Setothosea asigna. The research was held at the Insect Laboratory, Faculty ofAgriculture, University of Sumatera Utara, Medan from April to Juni 2013. It was arranged byCompletely Randomized Design with 6 treatments and four replications, respectively. The total ofpredator againts nettle caterpillar Sethotosea asigna are: R0 (0:8),R1 (2♂:8 ), R2 ( 2♀:8 ) R3,(♂♀:8 ) ,R4 ( 2♂♀:8), R5 (3♂♀:8). The parameters which observed were the mortality persentageof S. asigna caused by predator R. fuscipes and how to consumed. The result showed that the mosteffective treatment is R5, R4, R3, R2, R1 and R0 at a stretch. The matter is shown from the fastest ofability kill of 8 S. asigna that tested is R5 (10 days) and followed by R4, R3, R2, R1, R0.Keywords : Rhynocoris fuscipes F. and Nettle caterpillar setothosea asigna E

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

Respon Pertumbuhan Bibit Kakao (Theobroma cacao L.) terhadapPemberian Pupuk Guano dan KCl Pispa Rajagukguk; Balonggu Siagian; Ratna Rosanty Lahay
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Addition of guano in cultivation of cacao seedling is the one step to use organic fertilizer thatcomes from animal feces and it is used to add soil nutrient for the growth of cocoa seedlings, aswell addition of KCl is used to add soil nutrient too. For that purpose addition guano and KCl aimsto increase growth of cacao in cultivation of seedling. This research had been conducted atexperimental field of agriculture fakulty University of North Sumatera in October 2013 - January2014 using factorial randomized block design with two factor, i.e. addition dose of guano (0, 75 ,150, 225 g/polibag) and dose of KCl (0, 2, 4 g/polibag). Parameter observed were cacao height,cacao stem diameter, cacao leaf number, total leaf area of cacao, shoot fresh weight of cacao, shootdry weight of cacao, root fresh weight of cacao, root dry weight of cacao ,and cacao shoot rootratio. The result showed that parameter cacao height, cacao stem diameter, total leaf area of cacao,shoot fresh weight of cacao, shoot dry weight of cacao, and cacao shoot root ratio weresignificantly to addition guano but total leaf areaof cacao, root fresh weight of cacao, root dryweight of cacao,and cacao shoot root ratio were not significantly to addition guano.The best resultin addition guano is 225 g/polibag that produce shoot dry weight of cacaoas 11.57 g. All parameterswere not significantly to addition KCl and the interaction of two factor. The best resultofcombination is 225 g/polibag of guano and 4 g/polibag of KCl, that produce root dry weight ofcacao as 1.76 g.Keywords :guano, KCl, cacao seedlings.

Pengaruh Bentuk dan Ketinggian Perangkap Sticky Trap Kuning Terhadap Lalat Buah (Bactrocera spp.) (Diptera:Tephritidae) Pada TanamanTomat (Solanum lypersicum mill.) di Dataran Rendah Chornelius Karo-Karo; Yuswani Pangestiningsih; Lisnawita Lisnawita
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The aim of this research was to get the best shape and elevation of yellow sticky trap to controlfruit fly. Research was conducted from September 2013 until November 2013 at Kuta Tualahvillage, Kecamatan Kutalimbaru, Kabupaten Deli Serdang, North Sumatera on 57 meter above sealevel. The research was conducted using Randomized Block Design (RAK) factorial with twofactors and 5 replications. The first factor was U1= 100 cm, U2= 150 and U3= 200 cm and thesecond factor was T1= circle, T2= square, T3= sylinde. The results showed that circle yellowsticky trap with 150 cm elevation more effective for trapping male and female fruit fly than theothers. The highest number of larvae in tomatoes fruit was founded at square yellow sticky trapwith 100 cm elevations. Highest tomatoes production (21.86 ton / ha) was founded at circle yellowsticky trap with 150 cm elevation, meanwhile the lowest (3.70 ton / ha) was founded at squareyellow sticky trap with 100 cm elevation.Key words: Bactrocera spp., fruit fly, tomato, trap

Pemanfaatan Mikofer pada Kelapa Sawit dengan Interval Penyiraman di Pembibitan Sakra Damanik; Irsal Irsal; Yaya Hasanah
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The availability of water that is limited for watering during the dry season, especially in the largearea of oil palm nursery can be overcome by saving the water, which, in this research is the intervalwatering. Another alternative that can be applied is the utilization of mycofer. The research wasconducted in the greenhouse of the Faculty of Agriculture University of North Sumatra fromSeptember 2013 to January 2014. Research design was factorial randomized block design with twofactors : mycofer application (0, 5, 10, 15 g/seedling) and the interval watering (every day, threedays and five days). Parameters observed were percentage of root infection, leaf area total, dryweight of shoot, dry weight of root, and water use efficiency (WUE). The result showed thatmycofer application significantly affected the percentage of root infection which the highestinfection on 18th week after application was 28,89% as the result of 10 grams mycofer application.There was no significant effect of both mycofer application and watering interval in leaf area total,dry weight of shoot and root. Watering interval significantly affected the WUE which the highestWUE was 13,69% as the result of five days watering interval. Moreover, the watering interval forfive days in the research didn’t impair the oil palm growth within 18 weeks. The interaction had nosignificant effect on all of the parameters observed.Keywords: mycofer, watering interval, oil palm

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