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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 35 Documents

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

Uji Efektifitas Insektisida Biologi terhadap Hama Penggerek Polong (Maruca testulalis Geyer.) (Lepidoptera ; Pyralidae) pada Tanaman Kacang Panjang di Lapangan Eka Sundari Saragih; Yuswani Pangestiningsih
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

The objective of this research was to get bioinsecticides that efective againts the borer on chickpea in the field. This research was conducted at the Desa Kerapuh Kecamatan Dolok Masihul Kabupaten Serdang Bedagai, from November 2013 until Januari 2014. The research used complete block design nonfactorial with eight treatments and three replications. The treatments were control, Leaf extract of betelvine 100 g/l, leaf extract of soursop 250 g/l, Extract of Derris 50 g/l, Leaf extract of papaya 100 g/l, Bacillus thuringiensis 1ml/l, Beauveria bassiana 10 gr/l and Klorantraniliprol 1 ml/liter. The result showed that kind of bioinsecticide gave different effect to all of parameters. The best bioinsecticide to control M. testulalis was leaf extract of soursop 250 gram/liter.Key words: Maruca testulalis, chickpea, bioinsecticide

Pengaruh Interaksi Bahan Mineral dan Bahan Organik Terhadap Sifat Kimia Ultisol dan Produksi Tanaman Sawi Elva Rizkya Masni; Bintang Sitorus; Purba Marpaung
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

This study aimed to test the chemical properties of Ultisol and Brassica production by a combination of organic matter and minerals. This research was conducted at the gauze house, Compost Centre, and Research Technology Laboratory, Agriculture Faculty, University of North Sumatra, Medan. The research was conducted from September 2014 until May 2015. The research design used a randomized block design (RAK) by 2 factors treatments and two replications. The first factor is a mineral, M1: ash 250 g / 5 kg soil and M2: portland cement 62.5 g / 5 Kg of soil. The second factor (organic matters) are compost of durian skin by kefir activator (O1), compost of durian skin by yogurt activator (O2), compost of bagasse by kefir activator (O3), compost of bagasse by yogurt activator (O4), compost of sweet potato canopy by kefir activator (O5), compost of sweet potato canopy by yogurt activator (O6), compost of market waste by kefir activator (O7) and compost of market waste by yogurt activators (O8) each of all was 250 g / 5 kg soil. The results showed that organic matter gived significantly effect to increased plant fresh weight. But the effect was not significant to roots fresh weight, soil reaction (pH H2O) and C-organic. Mineral treatments gived significantly to increased the soil reaction (pH H2O). But the effect was not significant to plant fresh weight, root fresh weight and C-organic. Interactions of both treatments gived significantly to increased the soil reaction parameters (pH H2O) of all parameters observed.Key words :Ultisol, organic matters, minerals, brassica

Evauasi Kesesuaian Retensi Hara untuk Tanaman Bawang Merah (Allium ascalonicum) di Kecamatan Baktiraja Kabupaten Humbang Hasundutan Sumatera Utara Dicky Alamsyah Pulungan; Supriadi Supriadi; Bintang Sitorus
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

The aim of this research is to evaluate the suitability of nutrient retention for Shallot (Allium ascalonicum) in Baktiraja Sub-district of Humbang Hasundutan District, North Sumatera Province. The method of this search is survey method with Purposive Random Sampling Method with 30 samples and 3 meters, which is pH, CEC, and C-Organic. The result of this research show that land quality nutrient retentiont at Baktiraja Sub-District of Humbang Hasundutan District for shallot (Allium ascalonicum) is moderately suitable (S2). The characteristics for pH and C-Organic are highly suitable (S1), and at the same time is moderately suitable (S2) for CEC.Keywords: Shallot, pH, CEC, C-Organic

Evaluasi Sifat Biologi Tanah Tanaman Kopi Arabika (Coffea arabica L.) pada Beberapa Kecamatan di Kabupaten Mandailing Natal Daniel Matondang,; T. Sabrina; Hardy Guchi
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Kopi merupakan salah satu komoditas pertanian yang mempunyai nilai ekonomi cukup tinggi. Daerah Mandailing Natal merupakan salah satu daerah penghasil kopi di Indonesia. Penelitian ini bertujuan untuk mengevaluasi sifat biologi tanah antara lain C-organik, N-total, respirasi tanah dan total mikroorganisme tanah terhadap produksi kopi. Penelitian ini dilakukan metode survei. Sampel diambil dengan metode acak sengaja berdasarkan produksi dengan parameter yang diukur yaitu C-organik, N-total, respirasi tanah dan total mikroorganisme tanah. Data dianalisis dengan metode analisis komponen utama. Hasil penelitian menunjukkan bahwa sifat biologi tanah terbagi atas dua faktor, yaitu faktor “Nitrogen dan Mikroorganisme” dan faktor “Bahan Organik”. Baik faktor “Nitrogen dan Mikroorganisme” maupun faktor “Bahan Organik” mempengaruhi produksi secara positif.Kata kunci : Sifat Biologi Tanah, Produksi Biji Kopi, Mandailing Natal

Pertumbuhan Stump Karet (Hevea brassiliensis Muell Arg.) Pada Berbagai Kedalaman dan Komposisi Media Tanam Jenni Sagita Sinaga; Charloq Charloq; Chairani Hanum
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Salah satu permasalahan yang dihadapi pada pembibitan stump karet dilapangan ialah tingginya persentase kematian stump (sebesar 15-20%) yang diakibatkan oleh pertumbuhan akar dan tunas yang terhambat. Oleh sebab itu dibutuhkan suatu penelitian untuk mengetahui pertumbuhan stump karet yang ditanam pada berbagai kedalaman penanaman dengan komposisi media tanam yang berbeda. Tujuan penelitian ini untuk mengetahui pertumbuhan stump karet pada berbagai kedalaman dan komposisi media tanam. Penelitian dilaksanakan pada bulan Juli hingga November 2014 di Lahan Percobaan Fakultas Pertanian Universitas Sumatera Utara. Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap Faktorial. Faktor pertama adalah kedalaman (di tengah antara mata okulasi dengan pangkal batang, tepat dipangkal batang, di sepertiga dari pangkal batang) dan faktor kedua adalah perbandingan media tanam topsoil dan pasir (1:0, 1:1, 1:2, 1:3).Hasil penelitian menunjukkan bahwa perlakuan kedalaman penanaman stump meningkatkan persentase bertunas, kecepatan melentis, dan jumlah daun, sedangkan perlakuan media tanam meningkatkan kecepatan melentis, diameter tunas dan bobot segar tunas, serta interaksi kedua perlakuan meningkatkan persentase bertunas, panjang tunas, diameter tunas, dan bobot segar akar.Kata kunci : Stump karet, Kedalaman Tanam, Media Tanam

Kajian Pemanfaatan Konsentrat Limbah Cair dan Abu Boiler Pabrik Kelapa Sawit sebagai Sumber Unsur Hara Tanah Ultisol Irma Elia; Mukhlis Mukhlis; Razali Razali
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Greenhouse study experiment aimed to study the utilization of waste liquid concentrates and boiler ash of palm oil mill as nutrient source of Ultisols. This study was using complete block randomized design with two factor and three replications, concentrate of waste liquid factor 0, 10, 20, 30 ton / ha and boiler ash factor 0, 50, 100, 150 kg K2O / ha. Parameters measured were soil pH, organic-C, total -N, available-P, and exchange K, plant height, shoot dry weight, root dry weight, and plant N, P, K uptake. The result of study showed that concentrate of waste liquid of palm oil mill can act as nutrient sources because increase all parameters, but boiler ash just increase soil pH, available P, exchange K and plant P uptakeKey words : boiler ash, concentrates, Ultisol.

Respon Pertumbuhan Stump Karet (Hevea brassiliensis Muell Arg.) terhadap Pemberian Growtone Berbagai Komposisi Media Tanam Jenny Riris Marsella Panggabean; Charloq Charloq; Asil Barus
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Salah satu permasalahan yang dihadapi dalam budidaya karet dengan stump adalah tingginya persentase kematian stump di lapangan yang diakibatkan terhambatnya pertumbuhan akar dan tunas. Sehingga untuk mempercepat pertumbuhan perakaran dapat dilakukan dengan pemberian Growtone. Penelitian ini bertujuan untuk mengetahui respon pertumbuhan stump karet terhadap pemberian Growtone pada berbagai komposisi media tanam. Penelitian dilaksanakan pada bulan Juli hingga November 2014 di lahan Penelitian Fakultas Pertanian Universitas Sumatera Utara, Medan. Rancangan penelitian yang digunakan adalah rancangan acak lengkap faktorial dengan dua faktor dan tiga ulangan. Faktor pertama adalah Konsentrasi Growtone yaitu 0, 25, 50 dan 75 mg dan faktor kedua adalah perbandingan media tanam topsoil dan pasir yaitu 1:0, 1:1, 1:2, 1:3. Hasil penelitian menunjukkan bahwa pemberian Growtone tidak nyata meningkatkan pertumbuhan stump karet, pemberian media tanam topsoil : pasir (1:1) serta interaksi keduanya nyata meningkatkan pertumbuhan stump karet.Kata kunci : Stump, Growtone, Media tanam

Pengaruh Curah Hujan Dan Hari Hujan Terhadap Produksi Tebu ( Saccharum officinarum Linn ) Di Kebun Kwala Bingai PT.Perkebunan Nusantara II Mulia Frans G. S; Irsal Irsal; Emmy Harso Kardhinata
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

The climate factors is very influental to the growth and productivity of sugarcane. Rainfall is an important climatic element observed. The purpose of this reseach was to determine the effect of rainfall and rainy day as well as the correlation of both on sugarcane yield. This research was held at PTPN II Unit Kwala Bingai District Langkat Province of North Sumatera from Mey 2015 to Agustus 2015. The primary data for analytical purposes include sugarcane production; rainfall; and rainy days in 2009, 2010, 2011, 2012, 2013 at 6 locations. The result showed that rainfall and rainy days had not give contribution to sugarcane production. Based on regresion analysis at α = 0,05 rainfall as well as rainy days have low correlation to sugarcane yield.Keywords: rain fall, rain day, production of sugar cane.

Pengaruh Lama Penyimpanan dan Diameter Stum Mata Tidur terhadap Pertumbuhan Bibit Karet (Hevea brasiliensis Muell. Arg.) Mitra Kasih Maruhawa; Asil Barus; T. Irmansyah
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

The purpose of this research is to found out the influence of storage period and diameter stump on stump rubber growth. This research was conducted at experimental field of Agriculture Faculty, University of North Sumatera, Medan, in april until august 2015, using randomized block design with two factors, i.e storage period (0,5,10,15,20 days) and diameter of stump (1.6-2.0 cm, 2.1-2.5cm, 2.6-3.0 cm). Parameters observed were percentage of grow, time of break bud, height of bud, diameter of bud, amount of leaf, total leaf area, root length, root dried weight and shoot dried weight. The result showed that the storage period significantly affected on percentage of grow, diameter of bud, amount of leaf, total leaf area and root length. While the treatment diameter of stump significantly affected on percentage of grow and root length. The interaction of two factor significantly affected on percentage of grow and root length.Keywords : stump rubber, storage period, diameter of stump

Respons Pertumbuhan Bibit Setek Tanaman Buah Naga Merah (Hylocereus costaricencis (Web) Britton & Ross) Terhadap Pemberian Auksin Alami dengan Berbagai Tingkat Konsentrasi Muhammad Rivai Sitorus; T. Irmansyah; Ferry Ezra Sitepu
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

One way to increase the production of dragon fruit is the provide of quality seeds. Used of coconut water, cow urine, and goat urine which is contains the hormone auxin that could potentially increase the growth of seedlings. This research was conducted in Agriculture Faculty University of Sumatra Utara with a height ± 25 m above sea level, which is held in May until July 2015. The research used randomized block design with 2 factors, namely, the type comprised a natural auxin of coconut water, cow urine, goat urine and concentration consisting of 0,25,50,75 and 100% were repeated three times. continiued analyzed used analysis of variance followed by Duncan's Multiple Range Test (DMRT) at 5%. The result showed that the type of natural auxin has significantly effect against age emerged shoots and shoots height 30 DAP. The concentration of natural auxin significantly effect against emerged shoots, shoot height 30, 45 DAP, and dry weight of shoots. Interaction between types of natural auxin and concentration has significantly effect against age emerged shoots, and height shoots 30 DAP.Key word : type of natural auxin, concentration of natural auxin. cut dragon fruit

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