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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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Respons Pertumbuhan dan Produksi Bawang Merah (Allium Ascalonicum L.) Terhadap Pemberian Pupuk Kandang Ayam dan Urine Sapi Frans J A Saragih; Rosita Sipayung; Ferry Ezra T. Sitepu
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

ABSTRACT This research was conducted to obtain dose of chicken manure and cow urine which can improve the growth and production of the shallot. The research was conducted at experimental field of Agricultural Faculty of Sumatera Utara University, Medan which about ± 25 metres above sea level, begun from May until August 2015 using factorial randomized block design with two factors, i.e: doses of chicken manure (no chicken manure, 1.9 kg/plot, 2.9 kg/plot and 3.9 kg/plot) and doses of cow urine (no cow urine, 500 ml/plot, 600 ml/plot, 700 ml/plot). Parameters observed were plant lenght, number of tillers per clump, diameter of the bulbs per sample, wet bulb weight per plot, and dry bulb weight per plot. The results showed that aplication of chicken manure significantly affected plant length at 3 - 7 weeks after planting, number of tillers per clump at 3 - 7 weeks after planting, dry bulb weight per sample, wet bulb weight per plot, and dry bulb weight per plot. Aplication of cow urine not significantly affected on all parameters of observation. Interaction between aplication of chicken manure and cow urine not significantly affected on all parameters of observation.Keywords : shallot, chicken manure, cow urine ABSTRAK Penelitian ini bertujuan untuk mendapatkan dosis pemberian pupuk kandang ayam dan urine sapi tertentu yang dapat meningkatkan pertumbuhan dan produksi bawang merah. Penelitian dilaksanakan di lahan percobaan Fakultas Pertanian Universitas Sumatera Utara, Medan dengan kepanjangan ± 25 meter di atas permukaan laut, pada bulan Mei hingga Agusutus 2015. Metode penelitian menggunakan rancangan acak kelompok faktorial dengan dua faktor, yaitu: pupuk kandang ayam (tanpa pupuk kandang ayam, 1.9 kg/plot, 2.9 kg/plot dan 3.9 kg/plot) dan pemberian urine sapi (tanpa urine sapi, 500 ml/plot, 600 ml/plot, dan 700 ml/plot). Parameter yang diamati adalah panjang tanaman, jumlah anakan per rumpun, diameter umbi per sampel, bobot basah umbi per plot, dan bobot kering jual umbi per plot. Hasil penelitian menunjukkan bahwa pemberian pupuk kandang ayam berpengaruh nyata terhadap parameter panjang tanaman umur 3 - 7 MST, jumlah anakan per rumpun umur 3 - 7 MST, diameter umbi per sampel, bobot basah umbi per plot, bobot kering jual umbi per plot. Pemberian urine sapi berpengaruh tidak nyata terhadap semua parameter pengamatan. Interaksi antara pemberian pupuk kandang dan urine sapi berpengaruh tidak nyata terhadap semua parameter pengamatan. Kata kunci : bawang merah, pupuk kandang ayam, urine sapi

Lokasi Penanaman Bawang Merah Lokal Samosir Berdasarkan Ketinggian Tempat di Daerah Tangkapan Air Danau Toba rose friska hutapea; zulkifli nasution; razali razali
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

ABSTRAK Penelitian ini bertujuan untuk menentukan lokasi penanaman bawang merah lokal Samosir berdasarkan ketinggian tempat di Daerah Tangkapan Air Danau Toba. Penelitian ini dilaksanakan di sentra kawasan penanaman bawang merah di daerah sekitaran Danau Toba dengan ketinggian tempat 900 – 2000 meter diatas permukaan laut. Penelitian ini dilaksanakan dengan metode survey yang meliputi studi literatur, penyusunan kuisioner, survey lapangan dan pengolahan data hasil survey lapangan. Hasil penelitian menunjukkan bahwa ketinggian tempat dan produksi bawang merah lokal Samosir berkorelasi negatif, artinya semakin tinggi ketinggian tempat maka produksi akan menurun dengan nilai r = 0.51. Ketinggian tempat yang terbaik untuk budidaya bawang merah lokal Samosir di DTA Danau Toba adalah ketinggian 900 – 1000 m dpl. Kata Kunci : Bawang Merah Lokal Samosir, Ketinggian Tempat, Daerah Tangkapan Air.

Respons Pertumbuhan Dan Produksi Kedelai (Glycine max (L.) Meriil) Terhadap Konsentrasi Dan Cara Pemberian Pupuk Organik Cair Mestika Amelia Sinuraya; Asil Barus; Yaya Hasanah
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

Low production of soybean caused by reduction of arable land due inorganic fertilizer contionously. Therefore, it should be done improvements by used liquid organic fertilizer. This research was conducted in Desa Tanjung Anom, Medan with altitude ± 25 meters above sea surface began on September to November 2015. This research used factorial randomized block design with two factors. The first factor was concentration liquid organic fertilizer (20; 40; 60 and 80 ml/L water) and the second factor was application methods liquid organic fertilizer with (spray and flush). Variable observed was total leaf area, shoot dry weight, root dry weight, dry weight of seeds per plant, dry weight of 100 seeds. The result of this research showed that concentration of liquid organic fertilizer of 40 ml increased the yield of soybean production in almost all the variable observation. Application methods of liquid organic fertilizer by flushed increased the yield of soybean production in almost all the variable observation. Interaction of concentration and application method of liquid organic fertilizer increased the yield of soybean production with the best treatment combination in concentration of 40 ml and by flushed. Key words: soybean, liquid organic fertilizer, concentration, application methods

Keanekaragaman Jenis Serangga pada Pertanaman Coffea arabica L. Setelah Erupsi Abu Vulkanik Gunung Sinabung di Kabupaten Karo Harun Bonael Nainggolan; Darma Bakti; Marheni Sembiring
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

Penelitian ini bertujuan untuk mengetahui jenis, kerapatan dan frekuensi kehadiran serta indeks keanekaragaman serangga di lahan pertanaman Coffea arabica L. yang terkena erupsi. Penelitian dilaksanakan di 3 desa (Desa Lingga, Desa Ndokumsiroga, Desa Perteguhan), Kecamatan Simpang Empat, Kabupaten Karo dan 1 desa (Desa Lae Parira), Kecamatan Lae Parira, Kabupaten Dairi dan Laboratorium Hama Tumbuhan, Fakultas Pertanian, Universitas Sumatera Utara, Medan pada bulan Agustus sampai Oktober 2015. Penelitian ini menggunakan 4 teknik perangkap serangga (sweep net, pitfall trap, yellow sticky trap dan handpicking), dan diulang sebanyak 4 kali. Hasil penelitian menunjukkan serangga yang tertangkap pada lahan terkena erupsi terdiri dari 11 ordo dan 34 famili. Famili dengan nilai kerapatan mutlak tertinggi sebesar 1762, terendah sebesar 2, nilai kerapatan relatif tertinggi sebesar 43.93%, terendah sebesar 0,05%, niai frekuensi mutlak tertinggi sebesar 4, terendah sebesar 2, nilai frekuensi relatif tertinggi sebesar 3,54% yang terendah sebesar 1,77% dan indeks keanekaragaman Shanon-Weiner (H’) 1,98 (sedang). Sedangkan pada lahan tidak terkena erupsi terdapat 11 ordo dan 40 famili. Famili pada lahan tidak terkena erupsi mempunyai nilai kerapatan mutlak tertinggi sebesar 1056, yang terendah sebesar 5. Nilai kerapatan relatif tertinggi sebesar 34,30%, terendah sebesar 0,16%, nilai frekuensi mutlak tertinggi sebesar 4, terendah sebesar 2, nilai frekuensi relatif tertinggi sebesar 2,82%, terendah sebesar 1,41%, dan nilai indeks keanekaragaman serangga sebesar 2,33 (sedang).

Exploration and Characterization of Microorganisms from Rubber Seed and The Benefits for Rubber Plant Growth (Hevea brassiliensis Muell. Arg.) Dita Amelia Novariza; Lahmuddin Lubis; Suzanna Fitriany Sitepu; Radite Tistama
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

The object of this research are to explore the microorganisms from rubber seed to prevent seed pathogens and beneficial to the growth of rubber plant. The research was conducted in the protection laboratory and greenhouse Sungei Putih Research Center from September to December 2014, using completely randomized design non factorial with 7 treatments and 4 replications. The treatments used are microorganisms exploration of healthy rubber seed, ie M0 (control), M1 (Trichoderma sp.(a)), M2 (Trichoderma sp.(b)), M3 (Aspergillus sp.), M4 (Rhizopus sp.), M5 (Isolates BBK(a)), and M6 (isolates BBK(b)). The results showed that microorganisms exploration from the healthy rubber seed has significant effect on all parameters. The best results to inhibit seed pathogens in the laboratory is Aspergillus sp. at 81.27%. For germinate speed and plants height the best results are Trichoderma sp.(b) at 5.75 days and 28.90 cm. The best results for the length of the root is Trichoderma sp.(a) at 35.10 cm, and for the root weight is Aspergillus sp at 4,91 g. Trichoderma sp.(a), Trichoderma sp.(b), and Aspergillus sp. besides potential as biocontrol agents pathogenic seed by way of seed coating, also has potential as a stimulator of growth and biological fertilizer which can improve the quality of the rubber plant growth. Keywords: rubber plant, antagonistic microorganisms, seed coating, seed pathogens, growth stimulator

Pengaruh Pemberian Kolkhisin Terhadap Morfologi dan Jumlah Kromosom Tanaman Binahong(Anredera cordifolia (Ten) Steenis) Rosida Mahyuni
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

The purpose of the study was to determinethe effect of colchicine on morphology and number of chromosome of binahong plant (Anredera cordifolia Tenn. Steenis.). The research was conducted at Faculty of Agriculture USUMedan, with a height of 25 metre above sea level, from May until December 2015. The design of the research was a Randomized Block Design of one factor with 5 treatments were: Control (without treatments);0.025% ;0.050%;0.075%;0.100%. Parameters observed were number of leave, weight of fresh shoot per sample, weight of dry shoot per sample, weight of fresh root, weight of dry root and number of chromosome. The results showed that the effect colchicine gave significantly to number of leave, weight of fresh shoot per sample, weight of dry shoot per sample, number of chromosome : 2n=2x+1=23 set (0.025%), 2n=2x+1=23 set (0.050%), 2n=2x+2=24 set (0.075%) and 2n=2x+4= 26 set (0.100%) with normally chromosome 2n=2x=22 set. Key words : colchicine, morphology, number of chromosome, binahong plant

Aplikasi Penanda Lima Primer RAPD (Random Amplified Polimorphic DNA) untuk Analisis Keragaman Genetik Andaliman (Zanthoxylum acanthopodium DC) Sumatera Utara indriani maya sari sembiring
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

The aim of the research was to determine the genetic diversity of the North Sumatera andaliman plants based on the RAPD using the OPD-13, OPI-20, OPH-09, OPN-10, OPM-01 primers. The research was conducted at the Integrated Laboratory, Faculty of Medicines, North Sumatera University from April 2015 to September 2015. Thirty accessions of North Sumatera andaliman plants were observed which originated from three districts i.e: Dairi, Karo, Simalungun. The DARwin 5.05 software was used to calculate and descriptive analysis. The results showed that a totally 25 DNA bands were obtained from the amplification of 26 accessions of andaliman using 5 random primers. The size of DNA bands were varied from 400 bp to 2400 bp. The percentage of polymorphic bands were also varied from 75% to 100%. From the 30 accessions there were 26 accessions enabled analyze by the software. The cluster analysis of the 26 accessions of the North Sumatera andaliman plants showed the highly genetic diversity and showed the closely genetic diversity with 3 main cluster and 6 subcluster. Several accessions were grouped based on the population and the others were dispersed. Keyword : Andaliman , genetic diversity, RAPD

Potensi Bakteri Endofit dalam Meningkatkan Pertumbuhan Tanaman Tembakau yang Terinfeksi Nematoda Puru Akar (Meloidogyne spp.) R Surya Murthi; Lisnawita Lisnawita; Syahrial Oemry
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

Potensi Bakteri Endofit dalam Meningkatkan Pertumbuhan Tanaman Tembakau yang Terinfeksi Nematoda Puru Akar (Meloidogyne spp.). Nematoda puru akar (Meloidogyne spp.) pada tanaman tembakau merupakan penyakit penting yang dihadapi oleh perkebunan tembakau di Indonesia. Beberapa teknik pengendalian telah dilakukan, seperti penggunaan nematisida, kultur teknis dan penambahan bahan organik namun belum efektif mengendalikan patogen ini. Pengendalian biologi dengan bakteri endofit merupakan alternatif pengendalian Meloidogyne spp. Penelitian ini bertujuan untuk mendapatkan bakteri endofit asal akar nilam meningkatkan pertumbuhan tanaman tembakau yang terinfeksi nematoda puru akar (Meloidogyne spp.). Penelitian ini dilaksanakan di Laboratorium Penyakit Tumbuhan Fakultas Pertanian Universitas Sumatera Utara pada bulan Juli – Desember 2014. Penelitian ini menggunakan Rancangan Acak Lengkap nonfaktorial dengan perlakuan pemberian beberapa jenis bakteri endofit yaitu: Kontrol (diaplikasikan nematoda 500ekor/pot), Bacillus spp.1, Pseudomonas spp. dan Bacillus spp.2. Hasil penelitian menunjukan laju pertumbuhan dan pertambahan jumlah daun terbaik terdapat pada perlakuan Pseudomonas spp. sedangkan berat basah dan kering akar tertinggi terdapat pada tanaman yang diaplikasikan Bacillus spp 1. Kata kunci : Bacillus spp., Pseudomonas spp., Meloidogyne spp., tembakau.

Pengaruh Lama Inokulasi dan Ukuran Larva Chilo sacchariphagus Boj. (Lepidoptera: Crambidae) Untuk Perbanyakan Sturmiopsis inferens Towns. (Diptera: Techinidae) di Laboratorium citra maharani; maryani cyccu tobing; syahrial oemry
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

The objective of the research was to study the inoculation period and larvae size of Chilo sacchariphagus for mass rearing of Sturmiopsis inferens. The research was conducted in laboratory of Sugarcane Reasearch and Devolopment Sei Semayang Binjai, Medan, North Sumatera from September until October 2014 using a randomized complete design with two factors and three replications. The first factor was inoculation periods (5, 10, and 15 minutes) and the second factor was larvae sizes of C. sacchariphagus (< 1.5, 1.5 - 2 and > 2 cm). The results showed that inoculation period and larvae size significantly effected the percentage of parasititation and total of pupa. The highest percentage of parasititation (4,63 %) on inoculation period for 5 minutes with larvae size > 2 cm and the lowest (0.71 %) on inoculation period for 10 minutes with larvae size < 1.5 cm. The highest total of pupal (2.61 pupal) on inoculation period for 5 minutes with larvae size > 2 cm and the lowest (0.71 pupal) on inoculation period for 10 minutes with larvae size < 1.5 cm. The highest percentage of pupal to become imago (92.5 %) on larvae size > 2 cm and the lowest (7.5 %) on larvae size < 1.5 cm and sex ratio of male and female S. inferens is 1 : 1.2.

Pertumbuhan Setek Tanaman Buah Naga (Hylocereus costaricensis (Web.) Britton & Rose) dengan Pemberian Kombinasi Indole Butyric Acid (IBA) dan Naphthalene Acetic Acid (NAA) beatrix novitasari; Meiriani Meiriani; Haryati Haryati
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

Salah satu upaya mempercepat pertumbuhan setek tanaman buah naga dengan menggunakan zat pengatur tumbuh (ZPT). Penelitian ini bertujuan untuk mengetahui pertumbuhan setek tanaman buah naga dengan pemberian berbagai kombinasi Indole Butyric Acid (IBA) dan Naphthalene Acetic Acid (NAA). Penelitian ini dilaksanakan di lahan percobaan Fakultas Pertanian, Universitas Sumatera Utara dengan ketinggian ± 25 meter di atas permukaan laut, pada bulan Juli sampai September 2015 dan menggunakan rancangan acak kelompok (RAK) non faktorial dengan perlakuan tanpa pemberian zat pengatur tumbuh, IBA (500 ppm) + NAA (0 ppm), IBA (0 ppm) + NAA (500 ppm), IBA (500 ppm) + NAA (500 ppm), IBA (500 ppm) + NAA (1000 ppm), IBA (500 ppm) + NAA (1500 ppm), IBA (1000 ppm) + NAA (500 ppm) dan IBA (1500 ppm) + NAA (500 ppm) yang diulang tiga kali. Hasil penelitian menunjukkan bahwa pemberian NAA 500 ppm tanpa IBA nyata mempercepat umur bertunas 60%, meningkatkan persentase bertunas 30% dibandingkan tanpa pemberian zat pengatur tumbuh. Pemberian kombinasi IBA 500 ppm + NAA 500 ppm nyata meningkatkan panjang tunas 25% dibandingkan tanpa pemberian zat pengatur tumbuh.

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