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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 35 Documents

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Search results for , issue "Vol 3, No 4 (2015)" : 35 Documents clear

Pengaruh Media Tanam dan Panjang Slip Bahan Tanaman terhadap Pertumbuhan Tanaman Vetiver (Vetiveria zizanoides (L.) Nash) Gamelia Magdalena Naibaho; Edison Purba; Jonis Ginting
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Pertumbuhan vetiver yang cepat diperlukan di lapangan agar fungsi vetiver sebagai tanaman konservasi dapat diperoleh. Penelitian ini bertujuan untuk menguji pengaruh media tanam dan panjang bahan tanaman (slip) terhadap pertumbuhan bibit tanaman vetiver (Vetiveria zizanoides (L.) Nash). Pengujian dilaksanakan dengan rancangan acak kelompok faktorial yang terdiri dari dua faktor yaitu media tanam (topsoil; topsoil+pasir; topsoil+cocopeat; topsoil+ sebuk gergaji) dan panjang anakan (10, 20, 30 cm). Parameter yang diamati adalah tinggi tanaman, jumlah anakan, panjang akar, bobot basah tajuk, bobot basah akar, dan bobot kering akar. Hasil penelitian menunjukkan bahwa perlakuan media tanam berpengaruh nyata terhadap tinggi tanaman, jumlah anakan, bobot basah tajuk dan bobot kering akar. Tinggi tanaman, jumlah anakan, bobot basah tajuk dan bobot kering akar tertinggi dijumpai pada media tanam topsoil (kontrol) diikuti oleh topsoil + pasir, topsoil + cocopeat, dan topsoil + serbuk gergaji. Panjang slip bahan tanaman yang menghasilkan pertumbuhan vetiver (tinggi, dan bobot basah tajuk) terdapat pada panjang slip 30 cm diikuti oleh panjang slip 20 cm, dan 10 cm. Interaksi antara media tanam dan panjang slip bahan tanaman berpengaruh tidak nyata terhadap semua parameter pengamatan.Kata kunci : vetiver, media tanam, slip

Pengaruh Perendaman Asam Sulfat (H2SO4) Terhadap Viabilitas Benih Delima (Punica granatum L.) Ilham Indra Satya; Haryati Haryati; Toga Simanungkalit
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Pomegranate seed requires dormancy breaking treatment to encourage germination. One of dormancy breaking treatments that can be done is soaking on sulphuric acid (H2SO4). This study aimed to determine the effect of concentration and duration of soaking sulphuric acid (H2SO4) on the viability of pomegranate seeds. This research was conducted at the Laboratory of Seed Technology Faculty of Agriculture, University of Sumatra Utara, Medan with a height of ± 25 meters above sea level, in April 2015, using a completely randomized design with 10 degree factor dormancy breaking treatments that seed soaking treatment with H2SO4 (25%, 50%, 75%) with duration of soaking (10 minutes, 15 minutes, and 20 minutes). Parameters measured were tetrazolium test (%), germination rate (day), normal seedling (%), abnormal seedling (%), seed that has not grown (%), vigor index, fresh weight seedling (g), dry weight seedling (g). The results showed that seed soaking treatment with 75% H2SO4 for 10 minutes increased the percentage of germination rate (day), normal seedling (%),vigor index, fresh weight seedling (g), dry weight seedling (g), but not to tetrazolium test (%).Keywords: pomegranate seeds, viability, dormancy, sulphuric acid

Respon Pertumbuhan dan Produksi Jamur Tiram Putih (Pleurotus ostreatus) Terhadap Berbagai Media Serbuk Kayu dan Pemberian Pupuk NPK M. Fadhil Afief; Ratna Rosanty lahay; Bolonggu Siagian
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

This research aim toknow kinds of media sawdust most excellent and NPK fertilizer dosage most appropriate for the production of white oyster mushroom (Pleurotus ostreatus). This research was conducted in mushroom oyster mushroom STM 1 Street, District of Johor Medan, Medan with altitude of 25 meters above sea level. The research was conducted from May to September 2014 using A Factorial Complete Randomized Design (CRD) with two factors, namely kinds of media sawdust: M1 (rubber wood), M2 (sawdust kemiri), M3 (sawdust coconut) and NPK: P0 (without fertilizer), P1 (5,6 g NPK/baglog), P2 (11,2 g NPK/baglog), P3 (16,8 g NPK/baglog). Parameters observed were age began to harvest mushrooms, mushroom stalk length, diameter mushroom hood, thick mushroom hood, the amount of hood / cluster, fresh weight mushroom / harvest, fresh weight mushroom / baglog and biological efficiency ratio (BER). Research results show that the kinds of media sawdust significant effect on all parameters. NPK fertilizer significant effect on stalk length parameter mushroom, mushroom hood diameter, fresh weight mushroom / harvest, fresh weight mushroom / baglog, and biological efficiency ratio (BER). Research results show of media rubber wood and without NPK fertilizer is the most excellent treatment in increasing the growth and production of oyster mushrooms.Keywords :White Oyster Mushroom, Media Sawdust, NPK Fertilizer

Seleksi Progeni F1 Sebagai Klon Unggul Penghasil Lateks dan Lateks Kayu Amorrito Surbakti; Rosmayati Rosmayati; Luthfi A. M. Siregar
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

The objective of this research was to get the best progeny based on potential of latex yield characteristic, timber yield characteristic and latex-timber yield resulted from 2008 hand pollination. The research was conducted in ± 54 m above sea level at Balai Penelitian Sungei Putih Pusat Penelitian Karet Galang Deli Serdang Sumatera Utara Medan from February 2014 - July 2014. The research was done by measuring coefisien varians, correlation, regression, path analysis, 10 % and 1 % selection intensity, and two line pattern.The research showed based on selection latex yield are 172/08 (intensity 10% and 1%), based on selection timber yield with intensity 10 % and 1 % are 172/08 and 173/08. Progeny 172/08 potential as latex and timber yielding for 2008 hand pollination.Keywords :Hevea brasiliensis, progeny,path analysis, selection

Tanggap Pertumbuhan dan Produksi Bawang Merah (Allium ascalonicum L.) Terhadap Dosis Pupuk Fosfat dan Asam Humat Osmin Sipayung; Mariati Mariati; Meiriani Meiriani
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

The aims of the research was to analize the growth and yield response of shallots (Allium ascalonicum L.) on the doses of phospate fertilizer and humic acid. The research was conducted at Jl. Pasar 1 Ringroad Medan from August to November 2014, using a factorial randomized block design with two factors replicated three times. The first factor is the doses of phosphate fertilizers (90, 72, 54, 36 kg / ha) and the second is the doses of humic acid (0, 1.5, 3 kg / ha). Parameters observed were number of leaves, number of tillers, wet weight per sample, dry weight per sample, the rate of net assimilation, the rate of relative growth, and the rate of plant growth. The result showed that only number of leaves 4 week after planting was significantly affected by the interaction between fosfate fertilizers and humic acid, which the most number of leaves was 19.67 produced by combination of 36 kg/ha phosphate fertilizer and 3 kg/ha humat acid and at 5,6 and 7 week after planting was significantly affected by humic acid. Meanwhile, all other parameters observed were not significantly affected by all treatments.Keywords: Fosfate fertilizer, humic acid, shallots

Respon Pertumbuhan Stump Karet (Hevea brassiliensis Muell Arg.) terhadap Pemotongan Akar Tunggang pada Berbagai Komposisi Media Tanam Kristina Nadapdap; Charloq Charloq; Jonatan Ginting
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Salah satu upaya untuk mengatasi tingginya persentase kematian stump yang diakibatkan terhambatnya pertumbuhan akar maka dilakukan pemotongan dan untuk mendukung permasalahan diatas media tanam juga penting untuk pertumbuhan tanaman. Ketersedian tanah subur untuk saat ini sudah sangat sulit karena penggunaan tanah secara terus menerus mengakibatkan adanya pilihan untuk membuka lahan pertanian pada lahan yang marginal. Penelitian dilaksanakan pada bulan Juli hingga November 2014 di Fakultas Pertanian Universitas Sumatera Utara, Medan. Penelitian ini bertujuan untuk mengetahui respon pertumbuhan stump karet terhadap pemotongan akar tunggang pada berbagai komposisi media tanam. Rancangan penelitian yang digunakan adalah rancangan acak lengkap faktorial dengan dua faktor dan tiga ulangan. Faktor pertama adalah pemotongan akar yaitu tanpa pemotongan akar tunggang, pemotongan ¼ dari akar dan pemotongan ½ dari ujung akar dan faktor kedua adalah media tanam yaitu topsoil : pasir 1:0, 1:1, 1:2, 1:3. Hasil penelitian diketahui bahwa pemotongan akar tidak nyata untuk meningkatkan pertumbuhan stump karet. Komposisi media tanam topsoil : pasir (1:2) menurunkan pertumbuhan stump karet secara tidak nyata. Pemotongan akar ¼ dari ujung akar dengan media topsoil menurunkan pertumbuhan stump karet secara tidak nyata.Kata kunci : Stump, Pemotongan akar, Media tanam

Pertumbuhan dan Produksi Padi Sawah Pada Beberapa Varietas dan Pemberian Pupuk NPK Carolina Permata Sari Simanjuntak; Jonatan Ginting; Meiriani Meiriani
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Tujuan dari penelitian ini adalah untuk mendapatkan pertumbuhan dan produksi padi sawah pada beberapa varietas dan pemberian pupuk NPK. Salah satu upaya yang dapat dilakukan untuk mendapatkan pertumbuhan dan produksi padi sawah adalah melalui varietas unggul dan pemberian pupuk NPK. Varietas adalah suatu populasi tanaman dalam satu spesies yang menunjukkan ciri berbeda yang jelas. Pemberian pupuk anorganik yang biasanya dalam bentuk pupuk tunggal, bila digunakan pupuk majemuk akan lebih menguntungkan. Keuntungan pupuk majemuk NPK adalah karena mengandung 3 unsur pupuk (NPK) maka dengan satu kali pemberian telah terpenuhi 3 unsur pupuk sekaligus sehingga akan menghemat dari segi biaya aplikasi, transportasi dan penyimpanan. Penelitian ini dilaksanakan di UPT Balai Benih Induk Padi Murni Tanjung Morawa Dinas Pertanian Provinsi Sumatera Utara pada bulan Oktober 2014 sampai dengan Januari 2015. Penelitian menggunakan Rancangan Acak Kelompok dengan 2 Faktor perlakuan. Faktor pertama adalah pupuk NPK dengan lima taraf yaitu 0 gr NPK/plot, 10 gr NPK/plot, 20 gr NPK/plot, 30 gr NPK/plot dan 40 gr NPK/plot. Faktor kedua adalah varietas terdiri dengan 3 taraf yaitu Ciherang, Mekongga dan Inpari 4. Hasil penelitian menunjukkan bahwa perlakuan varietas berpengaruh nyata terhadap parameter tinggi tanaman, jumlah anakan, bobot kering tanaman, bobot 1000 butir, bobot gabah berisi per rumpun dan produksi per plot.Kata kunci: Padi, pupuk NPK, varietas

Pertumbuhan dan Produksi Tiga Varietas bawang Merah (Allium ascalonicum L.) Pada Pemberian Beberapa Jenis Pupuk Organik di Tanah Terkena Abu Vulkanik Sinabung Ernika Septyma Br Pardede; Mariati Mariati; Rosita Sipayung
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

The aim of the research was to identify the influence of several types of organic fertilizer on the growth and yield of three shallot varieties on the land exposed by Sinabung volcanic ash. The research was conducted at the experimental field of Agricultural Faculty, Sumatera Utara University which about ± 25 metres above sea level, begun from April up to August 2014. The experimental design was randomized block design with 2 factors, replicated three times. The first factor was three shallot varieties i.e : V1 (Bima Brebes), V2 (Crok Kuning), V3 (Samosir) and the second was several types of organic fertilizer i.e : P0 (without fertilizer = control), P1 (palm oil fruit bunch), P2 (rice husk ash), and P3 (cow manure). Parameters observed were shoot length, leaves number, tillers number, clove number, harvesting age, and fresh and dried weight bulb per sample. The results showed that all parameters observed were significantly affected by three shallot varieties, meanwhile only harvesting age, and wet and dry weight bulb per plot were significantly affected by several types of organic fertilizer. There was no interaction between both treatments.Keywords: varieties, organic fertilizer, volcanic ash, shallot

Klasifikasi Tanah Berdasarkan Taksonomi Tanah 2014 di Desa Sembahe Kecamatan Sibolangit Frisca Panjaitan; Jamila Jamilah; M. M. B. Damanik
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Sembahe is believed to have a great potential particularly in agricultural sector. In order to discover this potent it is necessary to classify the soilfirst by using USDA Soil Taxonomy 2014th edition which has not been done before. This research conducted in between December 2013 and February 2014. The soil profiles was made from two representative location. The first is located at 03020’40” S 98035’30” E, with altitude 231 meter above mean sea level. Meanwhile the second is located at 03020’42” S 98035’05” E withaltitude 294 meter above mean sea level. Morphological properties identified by describing the soil profiles using manual book while physical and chemical properties identified at laboratory. Soil samples was taken from each horizon at every profiles and analyzed for particle size distribution, bulk density, organic carbon, exchangeable cations (Ca2+, Mg2+, K+, and Na+), pH in a 1:2 soil:water ratio, pH in KCl solution, phosphate retention, and also kation exchange capacity (CEC).The results show that the soil in Sembahe Village at profile I classified as Inceptisols Order, Udepts Sub Order,Humudepts Great Group, and Cumulic Humudepts Sub Group, andat profile II classified as Inceptisols Order, Udepts Sub Order, Dystrudepts Great Group, and Typic Dystrudepts Sub Group.Keywords : Soil Classification, Soil Taxonomy 2014, Inceptisols

Evaluasi Kesesuaian Lahan untuk Tanaman Kopi Arabika (Coffea arabica L var Kartika Ateng ) Di Kecamatan Muara Kabupaten Tapanuli Utara Bernart Jhensen Arihta Barus; Razali Razali; Gantar Sitanggang
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

This research aims to evaluate the land suitability of coffea (Coffea arabica L.) in Muara Subdistrict of North Tapanuli Utara. This research use survey method From the results of the overlay from the map of soil types, map of topography, and climate, retrieved 3 (three) units of land use map. SPL 1 has a land area of 796 hectares, SPL 2 has a land area of 243 hectares, and SPL 3 has a land area of 619 hectares.With the Matching method, then retrieved the land suitability class actual and potensial class for coffea (Coffea arabica L.) on each of the SPL. At SPL 1 and SPL 2 are actual land suitability class S3 (wa,nr) while the potential land suitability class is S3 (wa) and at SPL 3 is actual land suitability class S3 (wa,nr,eh) while the potential land suitability class is S3 (wa). Potention of land for Arabic coffea in Muara Subdistrict is 1658 Ha.Key words : land suitability, Arabic coffea, Muara Subdistrict

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