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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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PENGARUH WAKTU PEMBERIAN DAN KOMPOSISI COMPOST TEA TANDAN KOSONG KELAPA SAWIT DIPERKAYA Azotobacter TERHADAP PRODUKSI SAWI Jannerson Munthe; Erwin Masrul; T. Sabrina
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

The demand on organic agriculture products are increasingly with the increasing awareness onhealthy and nutritious foods, and also on protecting environment. In addition, the increasingdemand on organic food caused increasing the demand on organic fertilizers. Compost tea is analternative source of nutrients for plant in order to reduce chemical fertilizers. The aim of this studywas to determine the effect of compost tea application time and composition enriched oil palmempty fruit bunches Azotobacter in increasing the production of mustard. The study used arandomized block design (RBD) factorial consist of 2 factors and 3 replications. The first factor wasthe application time consist of 2 treatments (3 days and 6 days) and the second factor was thecompost tea formula consists of 5 treatments (150 g oil-palm empty fruit bunch compost+ 5000 mLof water, 150 g oil-palm empty fruit bunch compost + 1500 mL of coconut water + 3500 mL ofwater with 2% molasse, 300 g oil-palm empty fruit bunch compost + 3000 mL of coconut water +2000 mL of water with 2% molasse, 150 g oil-palm empty fruit bunch compost + water + 1500mL of coconut water +3500 mL water with 4% molasse and 300 g oil-palm empty fruit bunchcompost + 3000 mL of coconut water + 2000 mL water with molasse 4%). Results showed that theformulation compost tea 300 g oil-palm empty fruit bunch compost with 3000 mL coconut water +2000 mL water + 4% molasse gave the highest mustard production (based on wet weight), dryweight, plant height, leaf width and N uptake by plant and the chlorophyll content in mustard leaf.The best of application time was 6 days which gave the highest yield based on the wet weight, dryweight, plant height, leaf width, and N uptake by mustard. The certain formula of compost tea didnot had to be aplied on certain interval, either every 3 day nor 6 day.Keywords: Oil-Palm Empty Fruit Bunch Compost, compost tea, mustard, coconut water, molasse

PENGARUH BERBAGAI DOSIS DAN CARA APLIKASI PUPUK UREA TERHADAP PRODUKSI TANAMAN SAWI (Brassica juncea L.) PADA TANAH INCEPTISOL MARELAN Srie Elvhi Febri Yanti; Erwin Masrul; Hamidah Hannum
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

The application of urea fertilizer which excessive dosage caused the damaged of plant growth. Theobjective of this research was study the accurate dosage and method in application of Urea fertilizerin increasing plant growth of green mustard. The research was conducted in Agriculture Faculty,University of Sumatera Utara, Medan. This research used factorial blocky randomized design with3 block and 2 factors. The dosage of Urea ferlizer (N) were consisted of four kind are : U0 (0 ppmN), U1 (100 ppm N), U2 ( 200 ppm N), and U3 (300 ppm N) and the application method consistedof four levels, namely : D1 (spread) and D2 (mixed). The result of this research showed that somedosages and the way to apply the urea fertilizer did not effect the growth of mustard but effected theproduction of mustard. Highest production was dosage 200 ppm. The application of urea was mixedinto soil better then spread in increase the productivity of mustard. If urea mixed into soil, theoptimum dosages was 117 ppm and if urea spread, the optimum dosages was 190 ppm.Keywords: green mustard, mixed, spread, and urea.

INVENTARISASI JAMUR PENYEBAB PENYAKIT PADA TANAMAN KRISAN (Chrysanthenum morifolium) DI KECAMATAN BERASTAGI, KABUPATEN KARO, SUMATERA UTARA Lisnawita Lisnawita Daniel Erikson Hutabarat1*, Lisnawita2, Lahmuddin Lubis2; Lahmuddin Lubis2; Daniel Erikson Hutabarat
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Researech on tittle the inventarization fungus which is caused diseases on Chrysanthemummorifolium in Sub-district Berastagi, Regency Karo, North Sumatera. This research was intents toknow and to inventary fungus that caused Chrysanthemum morifolium disesases in field and ingreen house in Sub-district Berastagi, Regency Karo, North Sumatera. This research carried out inLaboratory of Plant Pathology Faculty of Agriculture, University of North Sumatera . The Resultsof this research showed that fungus caused Chrysanthemum morifolium diseases were cultivated infield are Puccinia horiana, Septoria sp., Fusarium sp. on flower, and Fusarium sp. on the stem,whereas Chrysanthemum morifolium were cultivated in green house are Puccinia horiana andSeptoria sp..Keywords : inventarization, fungus, Chrysanthemum morifolium

PENGGUNAAN RUMPUT LAUT LAUT (Sargassum polycystum) SEBAGAI BAHAN PUPUK CAIR DAN PENGARUHNYA TERHADAP KANDUNGAN N,P,K,Ca,Mg TANAH ULTISOL DANPRODUKSI SAWI ( Brassica juncea L. ) ORGANIK Ricky Ricky Ambarita; Alida Lubis; Hardy Guchi,
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

This study aims to find out the use of seaweed ( Sargassum polycystum ) as a liquidfertilizer and its effect on N , P , K , Ca , Mg Ultisol and mustard (Brassica juncea L. )growth organically. The study was carried out in the Screen House and Laboratory ofChemical and Soil Fertility , and Central Laboratory , Faculty of Agriculture ,University of North Sumatra , Medan since January until March 2012. This researchused Randomized Block Design( RBD ) non factorial of nine treatments with tworeplication so there are two eighteen experimental unit . The treatment consists of P0(control) , P1 (application of liquid seaweed fertilizer A-type every two days) , P2(application of liquid seaweed fertilizer A-type every three days ), P3(application ofliquid seaweed fertilizer A-type every four days), P4 (application of liquid seaweedfertilizer A- type every five days), P5 (application of liquid seaweed fertilizer B-typeevery two days), P6 (aplication of liquid seaweed fertilizer B-type every three days ), P7( application of liquid seaweed fertilizer B-type every four days ) , P8 (application ofliquid seaweed fertilizer B-type every five days ). A-type of fertilizer use EM-4 20 ccand B-type use EM-4 40 cc. The results showed that application of liquid seaweedfertilizer did not differ significantly affected soil total P, available P, soil total K , Kexchangeable,Ca-exchangeable, Mg- exchangeable and plant dry weight. Butsignificantly different on the soil N, plant height, leaf area, number of Leaf, chlorophyllcontent, plant mass weight, plant fresh weight for market. The highest weight of plantmasss achieve on the treatment P4 that is weighing 149.1 g.Keywords: polyscystum sargassum, seaweed fertilizer, mustard (Brassica juncea L)

PENGARUH PEMATAHAN DORMANSI SECARA FISIK DAN KIMIA TERHADAP KEMAMPUAN BERKECAMBAH BENIH MUCUNA (Mucuna bracteata D.C) Retno Puji Astari; Rosmayati Rosmayati; Eva Sartini
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Generative propagation of mucuna produces low germination percentage and requires long time togerminate due to seed dormancy which is caused by the seed coat that is impermiable to oxygenand/or water. This study is aimed to find out the effect of the treatment of chemical compund ondormancy realease of mucuna seed. This study was held in the Laboratory of Plant BreedingAssociation at Agriculture Faculty of University of North Sumatera (USU) (± 25 m asl) from Mayto June 2013 by using random block design with 8 treatments. Each treatment was replicated 3times. The treatments were without treatment (A1), the seed coat scarification and soaking in waterfor 30 minutes (A2), soaking in 1% of H2SO4 for 10 minutes (A3), soaking in 1% of H2SO4 for 15minutes (A4), soaking in 1% of KNO3 for 12 h ours (A5), soaking in 1% of KNO3 for 24 hours(A6), soaking in 300ppm of GA3 for 3 hours (A7), and soaking in 300ppm of GA3 for 5 hours(A8). The parameters were moisture (%), germination capacity (%), germination speed (% / etmal),dormancy intensity (%). The results show that dormancy release has significant effect on moisture(%), germination capacity (%), germination speed (%/etmmal), and dormancy intensity (%). Thetreatment of soaking in 1% of H2SO4 for 10 minutes (A3), soaking in 1% of KNO3 for 24 hours(A6), and soaking in 300 ppm of GA3 for 5 hours (A8) were the treaments that were able to releaseMucuna seed dormancy with germination capacity >80%; treatments A3 and A6 each produces91.67% and A8 produces 86.67%. The best dormancy release was produced by treatment A6 that issoaking in 1% of KNO3 for 24 hours compared with H2SO4 and GA3.Keywords: Mucuna, dormancy, dormancy breaking

UJI EFEKTIVITAS Trichoderma harzianum DAN PEMBERIAN ARANG BATOK KELAPA SEBAGAI PENGENDALIAN HAYATI PENYAKIT LANAS (Phytophtora nicotianae de Hann ) PADA TANAMAN TEMBAKAU DELI Indra Hardian Matondang; Lahmuddin Lubis; Mukhtar Iskandar
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Test Effectiveness of Trichoderma harzianum and Coconut Shell Charcoal Granting of controlBiological Disease As Lanas (Phytophtora nicotianae de Hann) In Tobacco Plants Deli. The studyaims to determine the concentration of T. harzianum and charcoal administration is most effectivein controlling diseases in plants Tobacco P.nicotianae Deli. The experiment was conducted at theExperimental Farm Deli Sampali Tobacco Research Institute, Medan. This research used arandomized block design factorial with two factors and three replications. The first factor T.harzianum (T) consists of (T0) without treatment, (T1) T.harzianum that in cultures on corn mediawith a dose of 10 g / plant, (T2) T.harzianum that in cultures on corn media with a dose of 15 g /plant, (T3) T.harzianum that in cultures on corn media with a dose of 20 g / plant and the secondfactor consists of charcoal administration (A0) without treatment, (A1) coconut charcoal with adose of 20 g / plant. The results showed the highest percentage of attacks are on treatment T0A0amounting 99.71% and the lowest percentage of attacks are on treatment T3A1 (T.harzianum that incorn cultured on medium with a dose of 20 g / plant and coconut shell charcoal with a dose of 20 g /plant ) by 0.71%. The highest number of leaves found in treatment T3 (T.harzianum that in cultureson corn media with a dose of 20 g / plant strands at 11.67 and the lowest at treatment T0 (control) of7.17strands.Keywords: T.harzianum, coconut Shell charcoal, P.nicotianae, TobaccoDeli

RESPONS PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS TANAMAN JAGUNG (Zea mays L.) TERHADAP PEMBERIAN PUPUK P DAN K Fredrik Dynata Simanungkalit; Mbue Kata Bangun; Isman Nuriadi
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Using of Central Composite Rotatable Design (CCRD) to determine the surface response producewas not researched yet, so the research have been conducted in UPT BBI Tanjung Selamat, Regencyof Deli Serdang, Province of North Sumatra with the land height ± 25 m above sea level, at May2012 - August 2012 using randomized block design with two factors : two varieties (Bisma and SHS-4) and Fertilizer (P and K with the dose determined from CCRD). Parameters measured were plantheight, number of leaf, time of flower initiation, harvesting age, cob length, number of leaf abovecob, cob diameter, weight of 100 seeds, seed filling rate and dry seeds production. The resultsshowed that the varieties were significantly diffrent to plant height, number of leafs, harvesting age,cob diameter, weight of 100 seeds, the seed filling rate, and dry seeds production. Fertilizer weresigificantly effects to plant height, number of leafs, and dry seeds production. Interaction betweenvarieties and fertilizer were significantly effects to plant height, cob diameter, and dry seedsproduction.Keywords : maize, P fertilizer, K fertilizer, varieties, CCRD

PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.) DENGAN PEMBERIAN PUPUK HAYATI PADA BERBAGAI MEDIA TANAM Willy Andrew Tambunan; Rosita Sipayung; Ferry Ezra Sitepu
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Growth and Production of Shallot (Allium ascalonicum L.) to the Application of Biofertilizer in theVariety of Plants Media. The objective of this research was to know growth and production ofshallot (Allium ascalonicum L.) to the application of biofertilizer in the variety of plants media, itwas conducted at Tanjung Selamat, Sunggal, Medan with altitude ± 25 meter above the surface ofsea, began January until April 2012, by using a Randomized Block Design with two factors. Firstfactor was plants media consist of four level : M1 (Ultisol : Sand (2:1)), M2 (Vermicompost : Sand(2:1)), M3 (Ultisol : Vermicompost : Sand (2:1:1)), M4 (Ultisol : Vermicompost : Sand (2:2:1))and the second factor is biofertilizer consist of three level, K1 (100 KG/HA), K2 (200 KG/ha), K3(300 kg/ha). The parameter observed were plant height, tiller number, leaf number, fresh weightbulb per sample, fresh weight bulb per plot, dry weight bulb per sample, dry weight bulb perplot,and clove number per sample. The result showed that plants media treatments influentialsignificantly to parameters : plant height 4-7 week after plant,tiller number 6-7 week after plant,leaf number 3-7 week after plant, fresh weight bulb per sample, fresh weight bulb per plot, and wasnot significantly to parameter plant height 2-3 week after plant, tiller number 2-5 week after plant,leaf number 2 week after plant and clove number per sample. The aplication of biofertilizer andinteraction of plant media and biofertilizer was not significantly to all parameter.Keywords : biofertilizer, plants media, shallot

KARAKTERISTIK BIOLOGI DAN KIMIA TANAH SAWAH AKIBAT PEMBAKARAN JERAMI Annisa Tommy; Mukhlis Mukhlis; Benny Hidayat
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

The aim of this research was to study the biological and chemical characteristics of paddy soilcaused of burning rice straw. This research was conducted in Subdistrict Tanjung Morawa, DistrictDeli Serdang, North Sumatera Province. Sampling was done at the public rice field with strawburning over it and Balai Benih Sari Murni which never burning straw. Soil samples were takenunder the heap of burnt straw in three times, i.e after burning soon (0 week after harvesting), 1 and2 week after harvesting to analyze the number of arthropod an microorganisms, soil colour, texture,pH, C-organic, N-total, P-available, and K-exchangable in The Soil Biology, Soil Chemical andFertility, and Research and Technology Laboratory, Agricultural Faculty of North SumateraUniversity, Medan. The results showed that the soil with straw burning over it has the number ofarthropod and microorganism, C-organic, N-total, and P-available is lower than the unburnt soil. pHand K-exchangeable of the burnt soil is higher than the unburnt soil. In 2 weeks afterburning, the number of arthropod and microorganism, C-organic, and P-available gets recoveryfrom before.

UJI KETAHANAN BEBERAPA GENOTIPE TANAMAN KARET TERHADAP PENYAKIT Corynespora cassiicola DAN Colletotrichum gloeosporioides DI KEBUN ENTRES SEI PUTIH Intan Purnamasari; Lahmuddin Lubis; Maryani Cyccu Tobing; Zaidah Fairuzah
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Research on title resistence test of rubber plant genotype by Corynespora cassiicola andColletotrichum gloeosporioides diseases at Sungei Putih budstock rubber plantation. This researchwas to study to determine resistence of rubber plant genotype against C. cassiicola andC. gloeosporioides at budstock rubber plantation. This research had been conducted atexperimental field of Sungei Putih Rubber Research Center in May-July 2013 using split plotdesign with two factor, i.e genotype plants (930, 135, 38, 51, 65, 100, 108, 118, 222, 223, 227, and374) and diseases type (no disease, C. cassiicola and C. gloeosporioides). The results showed thatthe fastest incubation periode (3 days) contained on genotype 223 and 930, the slowest (6 days) ongenotype 222. The lowest disease severity (20,99%) of C. cassiicola treatment contained ongenotype 100 and the highest (33,33%) was at genotype 65. The lowest disease severity (21,61%)of C. gloeosporioides treatment contained on genotype 222 and the highest (57,41%) was ongenotype 223. The highest total spot (58,56 spots) contained on combination treatment of genotype223 with C. gloeosporioides disease and the lowest (1,70 spots) on combination treatment ofgenotype 100 with C. cassiicola disease.Key Words: Genotype plant rubber, Corynespora cassiicola, Colletotrichum gloeosporioides

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