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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 943 Documents

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Klasifikasi Tanah Di Lereng Selatan Gunung Burni Telong Kecamatan Bukit Kabupaten Bener Meriah Provinsi Aceh Thasniema Putri; Purba Marpaung; Razali Razali
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The research at south slope of mount Burni Telong is aimed to soil classification with theclassification system of Soil Taxonomy, 2014 into sub grup category which was conducted inFebruary – September 2014. Two selected pedons were observed at middle slop (Va.1.6.1t) andbottom slope (Va.1.4.1t). Soil samples were taken from each horizon for analysis bulk density, pH(H2O), pH (KCl), pH (NaF), Al, cation exchange capacity, base saturation, qrganic carbon,phosfat retention in Research and Technology Laboratory, Agricultural Faculty of North SumateraUniversity, Medan and analysis of soil texture, Al-oxalate extracted (Alo), Si-oxalate extracted(Sio), and Fe-oxalate extracted (Feo) in Soil Laboratory, Soil Research Institute, Bogor.The resultof this research is the classification in the middle slop soil (Va.1.6.1t) is Humic PsammenticDystrudepts, and on the bottom slope soil (Va.1.4.1t) is Typic Hapludands.Keywords: Mount Burni Telong, Soil Classification, Soil Taxonomy dd

Respons Dua Varietas Kedelai (Glycine max (L.) Merrill.)pada Pemberian Pupuk Hayati dan NPK Majemuk Dewi Ratnasari; Mbue Kata Bangun; Revandi Iskandar M. Damanik
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The objective of this research was to study the response of two soybean varieties growth and yieldon the biofertilizer and NPK compound fertilizer application. The factorial randomized blockdesign was used in this research with three factors i.e. : varety (Anjasmoro and Grobogan),biofertilizer (0, 50 and 100 kg/ha) and NPK fertilizer (0, 125, and 250 kg/ha). This research wasconducted on the experimental field of North Sumatera University from April to August 2014. Theresults showed that varieties significantly affected the plant height (2, 3, 4 and 6 weeks planted, theleaf greeness level, time of flowering, the time of harvest, the number of productive branches, thenumber of pods per sample, the number of seeds per sample and the dry weight of 100 seeds.Biofertilizer unsignificantly affected on all parametres. The NPK compound fertilizer significantlyaffected the the plant height 5 weeks planted, the leaf greeness level and the number of seeds persample. The interraction between variety and biofertilizer singnificantly affected the time offlowering, however the interraction between variety and NPK fertilizer affected the time of flowering and the number of seeds per sample.Keywords: soybean, variety, biofertilizer and NPK fertilizer.

Seleksi Progeni F1 Hasil Persilangan Tetua Betina IRR 111 dengan Beberapa Tetua Jantan 2006Pada Tanaman Karet(Hevea brassiliensis Muell Arg.). Sulvizar Musranda; Rosmayati Rosmayati; Revandy Iskandar M. Damanik.
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The objective of this research is to get the best progeny based on potential of latex yieldcharacteristic, timber yield characteristic and latex-timber yield resulted from 2006 hand pollinationThe research wasconducted in ± 54 m above sea level at Balai Penelitian Sungei Putih PusatPenelitian Karet Galang Deli Serdang Sumatera Utara Medan from February2014 - July 2014. Theresearch is 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 115/06 and 136/06 (intensity 10% and 1%),based on selection timber yield with intensity 10 % are 100/06, 4/06, 25/06, 41/06, 150/06, 29/06and intensity 1 % is 100/06, progeny 136/06 and 29/06 are potential progenies as latex and timberyield for cross 2006 with girth and diameter of latex vessels had directeffect for latex yield andcomponent girth and height of primary branches had direct effect for timberyield. Key words : Hevea brasiliensis, progeny, path analysis, selection

Persilangan Genotipe-Genotipe Kedelai (Glycine max L. Merrill.) Hasil Seleksi pada Tanah Salin dengan Tetua Betina Varietas Grobogan Nurul Ain Lubis; Rosmayati Rosmayati; Diana Sofia Hanafiah
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The aim of the research was to cross the resistant generations of the saline soil from pedigreeselection of grobogan varieties with female parent of Grobogan varieties as one of the stage toobtain the varieties which resistant to the saline condition. The research was carried out in plastichouse Agriculture’s Faculty of North Sumatera University, Medan, Indonesia with ± 25 m altitudeabove sea level. which was held in April to July 2014. This research used Completely RandomizedDesign with five combination crossing and ten replicant that is Grobogan×N,Grobogan×N3, Grobogan×N4, Grobogan×N. Parameters observed were the percentage of thesucceeded crossing, number of productive pods, number of empty pods, number of pods containone seed, number of pods contain two seeds, number of pods contain three seeds, and weight of 10seeds per plant. The results showed that crossing between selected of soybean genotypes on salinesoil with Grobogan varieties as female parent significantly different for parameters number ofproductive pods, number of empty pods, number of pods contain one seed, number of pods containtwo seeds, number of pods contain three seeds, and weight of 10 seeds per plant, but notsignificantly different for parameters the percentage of the succeeded crossing.Key words : crossing, genotype soybean, saline soil. 51, Grobogan×N2

Karakter Pertumbuhan Bawang Merah (Allium ascalonicum L.) Varietas Lokal Samosir Pada Beberapa Dosis Iradiasi Sinar Gamma Batubara, Afifa Ulfa; Afifa Ulfa Batubara, Mariati*, Ferry Ezra T. Sitepu, Mariati; Ezra T. Sitepu, Ferry
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v3i1.9480

The aim of the research was to identify growth characters of shallot var. local samosir with gammarays irradiation. Research was conducted at the Jl. Selamet Ketaren, Medan with a height of 25meter above sea level began from April until July 2014. Bulbs of shallot were exposed to severaldoses (0, 1, 2, 3, 4, 5, and 6 Gy) using Co60 source. Differencies of growth characters (shoot length,leaf number and tiller number per clump, harvest time, fresh and dry weight of bulb per plant, bulbdiameter and average weight per bulb) was analyze by t test using minitab v.16. The results showedshoot length 6 weeks after planting (WAP) were shorter 1.97cm, 2.38cm, 3.1cm, 4.73cm and4.49cm at doses 2,3,4,5,6 Gy; leaf number 2 WAP were reduced 35.16% and 39.24% at dose 5 and6 Gy, meanwhile tiller number 6 WAP was increased 13.88% at dose 6 Gy respectively comparedto control. Fresh weight and dry weight of bulb were lighter 30,39% and 37,04% at doses 5 Gy and38,52% and 47,44% at doses 6 Gy; average weight per bulb were lighter 23,2%, 47,64% and47,98% and bulb diameter were smaller 11,48%, 25,48% and 30,41% at doses 4,5,6 Gy respectivelycompared to control.Key words : Shallot var samosir, gamma rays irradiation, doses

Pengaruh Curah Hujan dan Hari Hujan terhadap Produksi Kelapa Sawit Berumur 12,15,18 Tahun di PTPN II Unit Sawit Seberang – Babalan Kecamatan Sawit Seberang Kabupaten Langkat Cecilia Natalenta Depari; Irsal Irsal; Jonis Ginting
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The climate factor is very influential to the growth and productivity of palm oil. Rainfall is animportant climatic element observed. Where the palm oil is a plant that requires large amounts ofwater than other crops. Purpose of this research was to determine the effect of rainfall and rain dayas well as the correlation of both on palm oil production in plants aged 12, 15 and 18 years. Thisresearch was held at PTPN II Unit Sawit Seberang–Babalan Sub-district Sawit Seberang DistrictLangkat Province of North Sumatera from March 2014 to September 2014. This research usedprimary data available in company administration. Primary data for the purposes of data analysisincludes the production of fresh fruit bunches (FFB); componen production data as total bunches,average bunches weight, and total of productive trees; rainfall data and rain day monthly in 2011,2012, and 2013 on 9 afdeling. Analysis method used are double linier regression and correlationanalysis. Model tested by classic asumption consists of normality test, heteroskedasticity test,multicollinearity, and autocorellations test by using statistic software SPSS.v.18 for windows. Theregression analysis shows that rain fall and rain day variables haven’t significant influence with alpha 5% (Sig < α 0.05) to increase the production of FFB at the age of 12, 15, and 18 years. This isbecause the rainfall is not evenly distributed throughout the year and less than optimal for thegrowth and production of FFB. From the results of the classical assumption test conducted todetermine whether the multiple regression equation feasible or not to use the regression equation toconclude that the oil palms aged 12, 15, and 18 years are qualified. Correlation results in plants was12, 15, and 18 years with two-way analysis test at 1% level showed variable rainfall and rainy dayshave a strong relationship, and the real (positive) direction. Correlation values of rainfall and rainydays are 0.895; 0.887; and 0.911 each with significant level < α 0.01. Keywords: rainfall, rain day, FFB production.

Tanggap Pertumbuhan Vegetatif dan Generatif Bawang Merah Terhadap Konsentrasi Dan Lama Perendaman GA 3 Di Dataran Rendah Andrio Sorensen; Mariati Mariati; Luthfi A. M Siregar
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The aim of the research was to identify the suitable concentration and soaking duration time of GAto induce flowering and seed formation of Medan variete shallots. Research was conducted atSelamat Ketaren #100 Medan which about 25 meters above sea level, begun December 2013 untilMarch 2014. The experiment was carried out by using non factorial randomized block design,replicated three times. The treatments were G0 (Control); G1 (20 ppm soaked 30 minutes GA); G2(20 ppm soaked 60 minutes GA3); G3 (20 ppm soaked 90 minutes GA); G4 (40 ppm soaked 30minutes GA3); G5 (40 ppm soaked 60 minutes GA33); G6 (40 ppm soaked 90 minutes GA); G7 (60ppm soaked 30 minutes GA3); G8 (60 ppm soaked 60 minutes GA) and G9 (60 ppm soaked 90minutes GA33). Parameters observed were shoot lenght, leaf number, tiller number, fresh weight ofbulb per sample and plot, and dry weight of bulb per sample and plot. The result showed that allparameters observed were not significantly affected by the treatments. Keywords : Shallot, GA3, Soaking Duration Time. 333

Uji Efektifitas Jamur Entomopatogen Beauveria bassiana dan Metarhizium anisopliae terhadap Kepik Hijau (Nezara viridula L.) (Hemiptera ; Pentatomidae) pada Tanaman Kedelai (Glycine max L.) di Rumah Kasa Suprayogi Suprayogi; Marheni Marheni; Syahrial Oemry
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The objective of the research was study of the effectivity test of fungi entomopathogen Beauveria bassiana and Metarhizium anisopliae on different conydia densities to infect the rodentadult green stink bug (Nezara viridula L.) This research was conducted at the screen house Facultyof Agriculture, University of North Sumatra, from Desember 2013 until Mei 2014. This researchusing Randomized Block Design non factorial with 7 treatments (control, suspension M. anisopliaewith conydia density 107/70 ml water, suspension M. anisopliae with conydia density 10/70 mlwater, suspension M. anisopliae with conydia density 109/70ml water, suspension B. bassiana withconydia density 107/70 ml water, suspension B. bassiana with conydia density 10/70 ml water,suspension B. bassiana with conydia density 109/70 ml water) with three replications. The results showed that fungi entomopathogen B. bassiana and M. anisopliae affected significantly topercentage of mortality, percentage of natalitas, and soy production. The best result for thepercentage of mortality was N3 (suspension M. anisopliae with conydia density 10/70 ml water)with 94.44%, The highest percentage of natalitas was Nwith 96.40%, The highest soy productionwas N3 (suspension M. anisopliae with conydia density 100 9/70 ml water) with 20.77 gr/polibeg/6crop.Key words: Glicyne max L., Nezara viridula L., Metarhizium anisopliae, Beauveria bassiana 898

Respons Pertumbuhan dan Produksi Beberapa Varietas Sorgum (Sorghum bicolor (L.) Moench)Pada Berbagai Jarak Tanam di Lahan Kelapa Sawit TBM I Zulkarnaen Zulkarnaen; T Irmansyah; Irsal. Irsal.
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

This research was conducted to study the varieties and various spacing on the growth and yield ofthe sorghum under the immature plants 1 of oil palm land. The research was held at Paya Robahvillage, west Binjai district, north Sumatra province from June-September 2014, using split plotdesign with varieties (numbu and kawali) as main plot and spacing (75x15, 75x20, 75x25, 75x30cm) as sub plot. Parameter observed were plant height, stem diameter, flowering time, harvestingtime, weight of panicle seed per sample, weight of panicle seed per sub plot, yield per sample, yieldper sub plot, and 1000 grains weight. The result showed that varieties significantly effect on plantheight, stem diameter, weight of panicle seed per sample, weight of panicle seed per sub plot, yield per sub plot, and 1000 grains weight. Spacing was significantly effect on plant height, stemdiameter, flowering time, harvesting time, weight of panicle seed per sub plot, yield per sub plot.There were interaction between variety and spacing for stem diameter. Keywords: spacing, variety, sorghum

Perubahan Karakter Agronomi Bawang Merah (Allium ascalonicum L.) Aksesi Simanindo Samosir Akibat Pemberian Berbagai Dosis Iradiasi Sinar Gamma Jerianta Ginting; Nini Rahmawati; Mariti Mariati
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The aim of the research was to identify the variation of agronomy characters of shallot by giving several doses of gamma rays. Research was conducted at Jl. Selamat Ketaren, Medan about 25meters above sea level started from April until July 2014. Bulbs of shallot exposed to gamma raysirradiation to several doses between 1-15 Gy (M0V1) using Co60 source and unirradiated bulbs(M0V0/control). The differencies of agronomic characters between irradiated (M) andunirradited plants (M0V) was analyze by t-test using minitab v.16. The results showed there weredifferencies between irradiated plant and unirradiated plant. Shoot emerged time of irradiated plantat doses 4-15 Gy were longer about 1,70 up to 5,36 days; shoot length and leaves number ofirradiated plant at doses 5-12 Gy in 6 weeks after planting (WAP) were shorter about 3,05 up to23,93 cm and were reduced about 1,33%; up to 79,06% compared to control. Meanwhile,harvesting age of irradiated plant at dose 4 Gy was reduced 2,05 days; weight and diameter per bulbof irradiated plant at dose 3 Gy was increased about 0,66 g and 28,59% compared to control.Keywords: shallot, irradiation, gamma rays 11V1

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