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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 49 Documents

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Search results for , issue "Vol 2, No 2 (2014)" : 49 Documents clear

RESPONS PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS KEDELAI (Glycine max L. (Merill.)) DI LAHAN KERING TERHADAP PEMBERIAN BERBAGAI SUMBER N Irma Afriyanti; Asil BaruS; Yaya Hasanah
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

ABSTRAKRespons Pertumbuhan dan Produksi Beberapa Varietas Kedelai (Glycine max L. (Merill.) di LahanKering Terhadap Pemberian Berbagai Sumber N. Penelitian ini bertujuan untuk mengetahui responspertumbuhan dan produksi tiga varietas kedelai di lahan kering terhadap pemberian berbagaisumber N. Penelitian ini dilaksanakan di Desa Sambirejo Kecamatan Binjai, Kabupaten Langkatdengan ketinggian tempat ± 25 meter di atas permukaan laut pada bulan Juni - September 2012dengan menggunakan Rancangan Acak Kelompok Faktorial dengan 2 faktor. Faktorpertama varietas dengan 3 jenis yaitu varietas Anjasmoro, Wilis dan Sinabung. Faktor keduasumber N 4 jenis yaitu tanpa nitrogen, sumber N-Anorganik (Urea), sumber N-Hayati(Bradyrhizobium japonicum) dan Sumber N-Organik (pupuk kandang). Peubah amatan adalahjumlah cabang produktif, jumlah polong berisi, bobot kering biji per tanaman dan bobot kering 100biji. Hasil penelitian menunjukkan bahwa varietas berpengaruh nyata terhadap jumlah cabangproduktif, jumlah polong berisi dan bobot kering 100 biji. Sumber N berpengaruh tidak nyataterhadap semua parameter. Interaksi kedua perlakuan berpengaruh nyata terhadap jumlah polongberisi.Kata kunci : varietas. sumber N. kedelai

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 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

ABSTRACTResearch 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 2, No 2 (2014)
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; Sanggam Silitonga; Fatiani Manik 2,, Fatiani Manik2
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Response 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 Ginting
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
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 Lubis2
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
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

PENGARUH PEMBERIAN FUNGI MIKORIZA ARBUSKULAR (FMA) TERHADAP PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS TEMBAKAU (Nicotiana tabaccum L.) DI LAPANGAN Parulian Sinaga; Edison Purba; Jonis Ginting
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

ABSTRACTThe growth and yield of a selected tobacco varieties (Nicotiana tabaccum L) treated withmycorhiza fungi arbuskular were evaluated in a field experiment. The aimed of the research was todetermine the effect of mycorhiza fungi on the growth and yield of several varieties of tobacco. Theresearch was conducted outdoor in the field at Balai Benih Penelitian Tembakau Deli Medan withaltitude of about 25 meters above sea level at the beginning of February until May 2012, with twotreatment factors. The first factors is Varieties of tobacco (Tobacco deli varieties F1-45, VirginiaTobacco varieties NC 95, Tobacco varieties Deli Deli-4), the second factors is mycorhiza fungiarbuskular (without mycorhiza fungi arbuskular, 15 g/plant, 30 g/plant and 45 g/plant). Theparameters measured were plant height, number of leaves, stem diameter, and sand leaf length. Theresults showed that mycorhiza fungi arbuskular showed the best results for the parameters of plantheight, and steam diameter. Varieties significant effect on the parameters of plant height, stemdiameter, sand leaf weight. Combination treatment with different varieties mycorhiza significanteffect on plant height and stem diameter.Keywords: Mycorrhiza, varieties, Nicotiana tabaccum.

PERTUMBUHAN DAN PRODUKSI KACANG TANAH DENGAN PEMBERIAN KOMPOS TANDAN KOSONG KELAPA SAWIT PADA FREKUENSI PEMBUMBUNAN YANG BERBEDA Michael Sembiring; Rosita Sipayung; Ferry E. Sitepu
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Peanut is one of food plant that has high economical value because of its nutrient content especially proteinand fat. The other alternative to increase peanut productivity were application of empty fruit bunch compostand pile up frequency. The purpose of this study was to determine the effect of empty fruit bunch compostand pile up frequency toward the growth and production of peanut This research was held on JalanPenampungan, Delitua, Namorambe, Deli Serdang with altitude ± 25 metre,took place on April to July 2013. The study design was a factorial randomized block design with two factors, namely empty palm bunches (0,12, 24 and 36 g /plant) and pile up frequency (0; 21; 21,42 and 21,42,63 days). The parameters measuredwere plant height, number of branches, days to flowering, number of ginofor per sample, number of pods persample, number of pods per plot, weight of pods per sample, the weight of pods per plot, seed weight persample, dry weight of 100 seeds. The results showed that composting of empty palm bunches significantlyaffect the parameters of number of ginofors per sample. Pile up frequency significantly affected the numberof pods per plot. Treatment interaction significantly affected the number of ginofors per sample.Keywords: peanut, empty palm bunches, pile up frequency.

UJI EFEKTIFITAS NEMATODA ENTOMOPATOGEN SEBAGAI PENGENDALI PENGGEREK PUCUK KELAPA SAWIT (Oryctes rhinoceros L.) (Coleoptera: Scarabaidae) DI LABORATORIUM Selly Khairunnisa; Mukhtar Iskandar Pinem; Fatimah Zahara
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Efficacy Test of Entomopathogenic Nematodes as a Controll of Coconut Palm Beetle (Oryctesrhinoceros L.) (Coleoptera : Scarabaidae) in the Laboratory. This research was conducted todetermine the effectiveness of entomopathogenic nematodes. as a controll of O. rhinoceros L.(Coleoptera : Scarabidae) in the Laboratory. This research was carried out in the Laboratoryof Pests and Laboratory of Plant Diseases, Agroecotechnology, Faculty of Agriculture, Universityof North Sumatra from January to March 2013. The method of this research was CompletelyRandomized Design (CRD) non-Factorial which consist of 6 treatments and 3 replications.Treatments being tested were 6 levels of population density Infective Juvenile (JI) of nematodesentomopathogenic (0, 50, 100, 150, 200, 250 JI/ml). The results of this research showed that withpopulation density of nematodes entomopathogenic 200 JI/ml and 250 JI/ml at 144 hours after theapplication is effective for controlling larva mortality O. rhinoceros L. for 85,71% and 100%.The fastest ’s larval mortality time was found with population density of nematodesentomopathogenic 250 JI/ml at 24 hours after the application.Keywords: Oryctes rhinoceros L., oil palm, entomopathogenic nematodes

PENENTUAN STRUKTUR FORMULA MINERAL LIAT PADA INCEPTISOL DI LAHAN KAMPUS BARU USU KWALA BEKALA Naomi Eirene Matondang1; Purba Purba; Jamilah Jamilah
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

The Calculations of Formulae Structure of Clay Minerals on Inceptisols at University of NorthSumatera Land Kwala Bekala. The calculation have not been researched in this area. Therefore, aresearch had been conducted survey at USU Land Kwala Bekala Pancur Batu Subdistrict, DeliSerdang Regency (70 meters above sea level) in March-July 2013 by using method of calculation ofsome elements that formation of clay mineral. The results showed that the formulae is (0,025K2O +0,03Na2O + 0,001CaO) (3,27SiO2+ 0,93Al2O3) (1,77Al2O3 + 0,87Fe2O3 + 0,007MnO + 0,03MgO)(3.27SiO2+ 0,93Al2O3) (0,025K2O + 0,03Na2O + 0,001CaO) (4,12OH), this montmoriloniteminerals is not pure because the isomorphous substitution in tetrahedral and octahedral crystalrespectively, be Beidelite mineral.Keywords : Inceptisol, Structural Formulae, Montmorilonite, Beidelite

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