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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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IDENTIFIKASI HORISON ARGILIK DENGAN METODE IRISAN TIPIS PADA ULTISOL DI ARBORETUM USU KWALA BEKALA Christian Natanael Tarigan; Purba Marpaung; Kemala Sari Lubis
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Identification argillic for reddish brown of podzolic soil (Ultisol) was conducted at Arboretum USUKwala Bekala, Deli Serdang Regency (50 meters above sea level). The research was conducted InJanuary - April 2013 by using thin section method to identification clay skin at each horizons layerby using a microscope petrothin. The results showed that no clay skin at horizons of ultisol fromArboretum USU Kwala Bekala Pancur Batu District , Deli Serdang Regency . it’s not true that bthorizon of ultisols is argillic. Land of arboretum USU Kwala Bekala more suitable as inceptisolsorder with cambic horizonKeywords: thin section, ultisol, argillic

PENGARUH PERIODE PANEN TERHADAP VIABILITAS BENIH ROSELA (Hibiscus sabdariffa L.) Dedes Mayang Sari Pulungan; Haryati Haryati; Ratna Rosanty Lahay
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Roselle has a harvest period that does not simultaneously or concurrently so that harvesting donegradually. To obtain a good quality seed of roselle harvesting seeds based physiologically mature.This research aimed to determine effect of harvest periode for seeds viability of roselle (Hibiscussabdariffa L.). This research has conducted in the experimental field which were ± 25 meters abovesea level and continued in Seed Technology Laboratory of the Faculty of Agriculture, UniversitasSumatera Utara from February to June 2013, using the non factorial completely randomized design.Analyzed of the data using analysis of variance and continued with DMRT. The result of researchhas identified that it has significantly effect of harvest period that influenced weight of 100 seeds(g), number of seeds/fruit (seed), normal germination (%), seeds do not germinate (%), seedling dryweight (g), but it was not significantly to rate of germination (days), abnormal germination (%) andvigor index (%).Keywords: harvest period, viability, seed of roselle

PENGARUH BEBERAPA KEHALUSAN TEPUNG BATUAN ANDESIT DAN PENGEKSTRAK TERHADAP KETERSEDIAAN HARA ULTISOL Richard Alex Stepanus; Bintang Bintang; Jamil Jamilah
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Soil has suffered impoverishment nutrient in many place, meanwhile igneous rocks such as andesitein Indonesia still underutilized. Therefore, the research had been conducted to testing the ability ofandesite rock dust on some fineness with the provision of extractors to increasing nutrientsavailability. It had been conducted at the greenhouse, College of Agriculture, North SumatraUniversity, Medan using factorial randomized completely design with two factors and threereplicates, i.e. fineness (80, 40, and 20 mesh) and extractors (distilled water, cow urine, pineapplejuice, and peat water). Parameters analyzed were soil reaction (pH H2O), P-available, exchangebases (K, Na, Ca, and Mg), CEC, and base saturation. The result showed that the fineness ofandesite rock dust increased pH H2O and K-exchange, but couldn’t improve P-available, Naexchange,Mg-exchange, CEC, and base saturation.The extractors increased pH H2O, K-exchange, Mg-exchange, and base saturation, but couldn’timprove P-available, Na-exchange, Ca-exchange, and CEC. Interaction between two treatmentscouldn’t improve and didn’t increase ultisol nutrients availability.________________________________________________________________________________Keywords: Andesite rock dust, fineness, extractors, nutrients availability

PENGARUH JENIS INSEKTISIDA TERHADAP HAMA POLONG Riptortus linearis F. (Hemiptera: Alydidae) DAN Etiella zinckenella Treit. (Lepidoptera: Pyralidae) PADA TANAMAN KEDELAI (Glycine max L.) Yuswani Pangestiningsih; Desy Siburian; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Desy siburian “The effect of various insecticide to the pest of pod Riptortus linearis F. (Hemiptera:Alydidae) and Etiella zinckenella Treit. (Lepidoptera: Pyralidae) towards soybeans (Glycine maxL.)” that supervised by Ir. Yuswani Pangestingsih, MS. and Ir. Lahmuddin Lubis, MP. Thisresearch was held in Desa Telaga Sari Kecamatan Tanjung Morawa Kabupaten Deli Serdang inJuly to September 2013. The method that used was non factorial “Completely Randomized BlockDesign” consist of 7 treatment and 3 repeatable. The treatment which tested were A0 (control), A1(Annona muricata seeds), A2 (Morinda citrifolia seeds), A3 (Jatropha curcas seeds), A4(chlorfiripos insecticide), A5 (agens Bacillus thurngiensis), and A6 (agens Beauveria bassiana).The parameter which were attack percentage of Riptortus linearis and Etiella zinckenella, thepopulation of nimfa Riptortus linearis and larva Etiella zinckenella, and also the production. Theresearch resulted that, the all of insecticide significantly effected the pest of pod Riptortus linearisand Etiella zinckenella. The best treatment to the Riptortus linearis is A2 (Morinda citrifolia seeds200 gr/l) that the lowest attack percentage (10.00%) and Etiella zinckenella is A4 (chlorfiriposinsecticide) that the lowest attack percentage (6,95).Keywords: Riptortus linearis, Etiella zinckenella, insecticide.

POTENSI BERBAGAI TANAMAN SEBAGAI INANG INOKULUM MIKORIZA ARBUSKULAR DAN EFEKNYA TERHADAP PERTUMBUHAN TANAMAN JAGUNG DAN KEDELAI DI TANAH ULTISOL Doli Saputra Hasibuan; T. Sabrina; Alida Lubis
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

The objective of this research would be to examine the micorrhyze inoculum quality of severaltypes of hosts using ultisol as growing medium on maize and soybean growth. The research hasbeen conducted in greenhouse and laboratory of Biotechnology of Soil, Faculty of Agriculture,North Sumatera University. To achieve this objective, a non-factorial group random sampling hasbeen used through some treatments: J J (maize was applied with mycorrhyze inoculum of maize), DJ (maize was apolied with mycorrhyze inoculum of soybeans), S J (maize was applied withmycorrhyze inoculum of setaria grass), T J (maize was appolied with mycorrhyze inoculum ofgroundnuts), J D (soybean was applied with mycorrhyze inoculum of maize), D D (soybean wasapplied with mycorrhyze inoculum of soybeans), S D (soybean was applied with mycorrhyzeinoculum of setaria grass), T D (soybean was applied with myzoerhyze inoculum of groundnuts).The result of research indicated that application of myzorrhyze inoculum of maize, soybean,groundnut and setaria grass to maize and soybean plants has not significant effect of increassing theheight of plants, wet weight of shoot, dry weight of shoot, wet weight of root, degree of rootinfection, uptakes of N and P in plants of maize and soybean plants.Keywords: host, mycorrhyze inocolum, maize, soybean, groundnut, and setaria grass

PERTUMBUHAN KEDELAI (Glycine max L. Merrill) DENGAN APLIKASI FUNGI MIKORIZA ARBUSKULAR (FMA) DAN KONSORSIUM MIKROBA Dini Oktaviani; Yaya Hasanah; Asil Barus
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

The using of chemical fertilizer in soybean cultivation had created negative impact for environment.To decrease of it, the utilization of biological fertilizer in soybean cultivation can increase thegrowth and production of soybean. The objective of the research was to know the growth andproduction of soybean with application of Arbuscular Mycorrhizal Fungi (AMF) and microbeconcortium. This research was conducted at Jalan Setiabudi Kelurahan Simpang SelayangKecamatan Medan Tuntungan on April-July 2013, used factorial randomized block design with twofactors. The first factor was application of AMF (0, 20, 40 g per plant). The second factor wasapplication of microbe concortium (0,5,10,15 g per kg of seed). Parameters observed were plantheight, stem diameter, infection degree of AMF, weight of nodules and number of effectivenodules. The result showed that application of AMF increased plant height 6 weeks after plant(WAP), stem diameter, infection degree of AMF. The application of microbe concortium increasedplant height 6 WAP, stem diameter, infection degree of AMF. Interaction both of treatmentincreased plant height 2 WAP, weight of nodules and number of effective nodules.Keywords : soybean, arbuscular mycorrhizal fungi, microbe concortium

EFEKTIVITAS BEBERAPA JENIS FUNGI MIKORIZA ARBUSKULAR TERHADAP PERTUMBUHAN TANAMAN KARET (Hevea brassiliensis Muell. Arg.) DI PEMBIBITAN The effectivity some type Arbuscular Mychorrizal Fungi on rubber (Hevea brassiliensis Muell. Arg.) growth in seedlings Perdana Roy Oksemsa Purba; Nini Rahmawati; Emmy Harso Kardhinata; Asmarlaili Sahar
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

The application of chemical fertilizer is often selected by farmer to increase the rubber growth.However the uses of chemical fertilizer in process of time will bit into land fertility caused the deathof microbe in the ground and the land condition will be solid, it caused root plants can not absorb anutrition. So the application of biological fertilizer like AMF expected to replace chemical fertilizerto increase a rubber growth in continuing time. This research had been conducted in plastic house ofthe Agriculture Faculty, University of North Sumatra (± 25 m asl) from July - September 2013.Method of this research is non factorial randomized block design with 7 treatments, that is the typeof AMF spore (big black AMF spores, small black AMF spores, big yellow AMF spores, smallyellow AMF spores, black indigenous of rubber AMF spores, yellow indigenous of rubber AMFspores, spores of Glomus spp.). Parameters observed were addition of plant height, root volume,weight of dry shoot, weight of dry root and total of spores.The result showed that the addition ofsome type AMF significantly influenced total of spores, but for the other parameters influenced notsignificantly.Keywords : arbuscular mychorrizal fungi, rubber

PENGARUH JENIS INSEKTISIDA TERHADAP LALAT BIBIT (Ophiomyia phaseoli Try.) PADA TANAMAN KEDELAI (Glycine max L.) Yuan Cynthia Br. Simanjuntak; Yuswani Pangestiningsih; Lisnawita Lisnawita
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

Research on title effect of insecticides to control bean fly (Ophiomyia phaseoli Try.) on soybean(Glycine max L.). Using chemical insecticide to control bean fly unwisely caused pest resistance.For that purpose in this research used biology, botany, and chemical insecticide to determine theireffectiveness. This research was conducted at Kelurahan Berngam, Kecamatan Binjai Kota,Kotamadya Binjai from June to July 2013 using factorial randomized block design. The resultshowed used soursop leaf 200 gr/l of water (P1) and Bacillus thuringiensis 1 ml/l of water (P5) wereeffective to control population of bean fly with percentage of attack (0.00%) and number of larvae(0.00 larvae). Using soursop leaf 200 gr/l of water (P1) also effective to control number of bean flywas (0.00 bean fly). Time symtomp in P1 (soursop leaf 200 gram/l of water) also lower than theother treatments was six days after planted.Keywords: insecticide, Glycine max, Ophiomyia phaseoli

EVALUASI KESESUAIAN LAHAN UNTUK TANAMAN BAWANG MERAH (Allium ascalonicum L.) DI KECAMATAN MUARA KABUPATEN TAPANULI UTARA Nurhalimah Rajagukguk*, Zulkifli Nasutio Rajagukguk; Zulkifli Zulkifli; Razali Razali
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

The objective of this research is to evaluate the land suitability onion (Allium ascalonicum L.) inMuara Subdistrict of North Tapanuli District. The methode of this research is the survay method.From the results of the overlay from the map of soil types, map of topography, and map of heightplace, retrieved 3 (three) units of land use map. SPL 1 has a land area of 741 hectares, SPL 2 has aland area of 13 hectares, and SPL 3 has a land area of 609 hectares.With the Matching method, thenretrieved the land suitability class actual and potensial class for onion (Allium ascalonicum L.) oneach of the SPL. At SPL 1 and SPL 2 are actual land suitability class S3 (nr) while the potentialland suitability class is S2 (tc) and at SPL 3 is actual land suitability class S3 (nr,eh) while thepotential land suitability class is S2 (tc,eh).Key words : land suitability (onion)

RESPONS PERTUMBUHAN DAN PRODUKSI KEDELAI HASIL SELEKSI TERHADAP PEMBERIAN ASAM ASKORBAT DAN INOKULASI FUNGI MIKORIZA ARBUSKULAR DI TANAH SALIN Muhammad Ardiansyah; Lisa Mawarni; Nini Rahmawati
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

Using of saline land to grow up soybean has constraints such yield decreasing. By using ofsaline tolerant soybean, using ascorbate acid, and inoculation of mychorrizha vesicular arbuscular(MVA) aimed to increasing growth and yield of soybean in saline land.This research was conductedat Kecamatan Percut Sei Tuan Kabupaten Deli Serdang in Februari – Mei 2013, using split split plotdesign with three factors, i.e. variety of saline tolerant soybean (Grobogan no selection andGrobogan F4 selection), giving of ascorbate acid (0 dan 500 ppm) and MVA isolate (MVA type 1,type 2, type 3, type 4 and type 5). Parameter observed were plant height, number of leaves, numberof productive branches, production per plant.The result of the research showed that using of salinetolerant soybean significantly increase all parameters observed. Giving of ascorbate acidsignificantly increase number of productive branches. Inoculation of MVA significantly effect allparameters observed. Interaction between variety of saline tolerant soybean and giving ascorbateacid were not significantly effect all parameters observed. Interaction between variety of salinetolerant soybean and giving of MVA significantly effected number of leaves 5 week after planting(WAP) and production per plant. Interaction between giving of ascorbate acid and MVA were notsignificantly effect all parameters observed. Interaction of three factors were not significantly effectall parameters observed.Keyword : ascorbate acid, michoryza vasicular arbuscular, salinity, soybean

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