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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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Search results for , issue "Vol 2, No 1 (2013)" : 50 Documents clear

RESPON BEBERAPA VARIETAS TANAMAN SAWI (Brassica juncea L.) DENGAN PEMBERIAN PUPUK ORGANIK Philip G. Marpaung; Mbue Kata Bangun; Syafruddin Ilyas
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Heritability of some varieties of mustard plants (Brassica juncea L.) with organic fertilizer. Mustardis a vegetable that seasonal and widely cultivated because of their many benefits and rewards.Mustard production has decreased each year. The decreasing availability of land and cultivationmethods are less than the maximum, then powered back organic farming system. The purpose ofthis research was to determine the response of two varieties of mustard with a heritability ofproviding a variety of organic fertilizers. Research conducted in public land Jl.Setia Budi, SelayangSimpang Village, District Field Tuntungan in September to November 2012, using a randomizedblock design with two factors and four replications. The first factor was mustard varieties consistedof Toksakan and Morakot. The second factor was sources of Will Grow organic fertilizer consistedof without Will Grow organic fertilizer, (0.5 x recommended dosage): 31.25 g / plot, (1.00 xrecommended dosage): 62.5 g / plot and (1.50 x recommended dosage): 93.75 g / plot. The resultsshowed that the varieties tested significantly different observation variables plant height, leaf area,leaf chlorophyll amount, selling fresh weight per plant, biomass per sample weight and harvestindex. Fertilizer Will Grow significant effect on the observation variables plant height, leaf area,leaf chlorophyll amount, selling fresh weight per plant, and weight biomass per sample. Highestheritability value contained in the variable observations of the lowest plant height and leaf area atthe observation variables.Keywords : heritability, mustard, variety, fertilizer

RESPONS PERTUMBUHAN STUM MATA TIDUR KARET (Hevea brasiliensis Muell Arg.) DENGAN PEMBERIAN AIR KELAPA DAN PUPUK ORGANIK CAIR Prihyanti Lasma E. Sinaga; Charloq Charloq; Nini Rahmawati
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

One of the problem encountered in rubber cultivation by rubber budded stump is high deathpercentage of stum in field. The research aim was to obtain useful rubber germ by cococut water soakand liquid organic fertilizer. The research was conduted at Kelurahan Pulo Brayan Bengkel Baru,Kecamatan East Medan (+ 25 meter above sea level) on June to October 2012.Completely randomized design with two factors and three replications. The first factor isthe duration coconut water soak (0, 12, 24 hour) and the second factor is liquid organic fertilizer(0, 20, 40, and 60 cc/plant). Parameters observated were percentage of break bud in field, time of brekbud, height of bud, diameter of bud, amount of leaf, root drived weight, shoot drived weight andpercentage of amount the death of stump at field. The result showed that period of coconut watersoak significantly affect the to percentage of broken bud 2 weeks after plant and the time of brek therubber bedded stump. The liquid organic fertilizer significantly affect to time of break stump, heightof bud, and shoot drived weight. Interaction of coconut water and liquid organic ferlilizer was notsignificantly effect to all paremeters. The best sit of coconut water is 12 hour and dose of liquidorganic fertilizer is 60 cc/plant.Key word : rubber budded stump, coconut water, liquid organic water, growth

MORFOLOGI DAN KLASIFIKASI TANAH DI LERENG UTARA GUNUNG SINABUNG KABUPATEN KARO SUMATERA UTARA Ridwandi Ridwandi; Muklis Muklis; Mariani Sembiring
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

The survey research is aimed to know the morphology and classification of soils at north slope ofMt.Sinabung. This research was conducted in Subdistrict Naman Teran, District Karo, NorthSumatera Province. Three selected pedons were observed at top slope, middle slope, and bottomslope. Soil samples were taken from each horizon for analysis soil texture, bulkdensity, pH H2O,pH KCl, pH NaF, Aldd, Base Saturation, CEC, ZPC (Zero Point of Charge), Organiccontent, P-retention, P-total, Al-oxsalate extracted (Alo), Si-oxsalate extracted (Sio), and Feoxsalateextracted (Feo) in The Chemical Soil Fertility and Research and Technology Laboratory,Agricultural Faculty of North Sumatera University, Medan. The result of the observation and theanalysis showed that the top slope soil has a rock material of lava which has been solid through ashallow solum, the middle slope soil have a perent material of lahars through a thick solum, and thebottom slope soil have a parent material of volcanic ash through a thick solum. According to SoilTaxonomy, the top slope soil is classified into su group Andic Dystrudept, however both of themiddle slope soil and the bottom slope soil are classified into sub group Typic Hapludand.Key Word : Mt.sinabung, soil classification. Soil morphology

PENINGKATAN KADAR VITAMIN C BUAH TOMAT (Lycopersicum esculentum MILL.) DATARAN RENDAH DENGAN PEMBERIAN HORMON GA3 Riky Gusti Handrian; Meiriani Meiriani; Haryati Haryati
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Tomato is one of the fruits that are beneficial to humans. Tomato has a delicious taste and has acomposition of substances in tomatoes quite complete and well. Composition in tomatoes quiteprominent of these is the composition of vitamin A and C. With vegetables like tomatoes and otherfruits, can be processed into various food products. Nutrient composition of tomato fruit is 100grams of protein (1 g), carbohydrate (4.2 g), fat (0.3 g), calcium (5 mg), phosphorus (27 mg), iron(0.5 mg ), vitamin A (carotene) 1500 SI, vitamin B (thiamine) 60 mcg, vitamin C 40 mg. Vitaminscontained in tomatoes is necessary for the growth and health of the body. Vitamin C is useful toprevent ulcers, to maintain healthy teeth and gums, as well as protect against other diseases causedby lack of vitamin C. Even the U.S. study showed, tomatoes can be used as a preventative ofcancer, particularly prostate cancer, if eaten on a regular basis as much as 5 pieces every week. Oneof the business in order to increase the levels of vitamin C in tomatoes that growth hormone GA3application. Results of research conducted by Meiriani (2011) on the provision of GA3 on tomatoplants results obtained highest levels of vitamin C at a concentration of 450 ppm with a frequencyof 3 times is equal to 123.20 mg/100 g. This research aimed to increase in vitamin C of tomato(Lycopersicum esculentum Mill.) with the hormone GA3. This research aimed to increase vitaminof tomato (Lycopersicum esculentum Mill.) with the GA3 hormone. This Research was conducted atthe Faculty of Agriculture, Universitas Sumatera Utara about + 25 meters above sea level fromJanuary to April 2012. And arrange in randomized block design with two-factors factorialtreatments. The first factor was concentration of GA3 with four levels : 300 ppm, 450 ppm, 600ppm, 750 ppm and the second factor was frequency of GA3 with three levels, i.e : 3 time, 4 timesand 5 times. The result of research showed that application of GA3 at concentration up to 750 ppmwas significantly influenced to increased tomato vitamin C level. Interaction of both treatmentwas not significant to influenced parameter of observation.Key words : GA3, tomato, consentration, application frequency, vitamin C.

PENGGUNAAN CENDAWAN MIKORIZA ARBUSKULA (CMA) UNTUK MENGENDALIKAN Fusarium oxysporum f.sp. cubense DAN NEMATODA Radopholus similis PADA TANAMAN PISANG BARANGAN (Musa Paradisiaca L.) DI RUMAH KACA Rini Ambarwulan; lLisnawita Lisnawita; Lahmuddin Lubis Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

The use of mycorrhizal arbuscula fungi (MAF) to control the Fusarium oxysporum f.sp.cubense and Radopholus similis on Barangan banana (Musa paradisiaca L.) in glasshouse.The research was to knew the effectivity of MAF in controling Fusarium wilt and R. similison Barangan Banana. The research was carried out in glasshouse of Agriculture Faculty,University of Sumatera Utara, Medan since May until December 2012. The method of thisresearch was Randomized Complete Design Non Factorial with nine treatment, namelycontrol, inoculation of MAF, inoculation of R. similis, inoculation F. oxysporum f.sp cubense,inoculation of mycorrhizal, R. similis & Foc, inoculation of Foc one week later MAF and R.similis, inoculation of R. similis one week later CMA dan Foc inoculation of MAF one weeklater Foc one week later R. similis; inoculation of MAF one week later R. similis one weeklater Foc and with three replication. The parameters are incubation period (days), diseaseincidence (%), and disease severity (%). The results showed that fastest incubation period inthe treatment M0R0F1 are 11 days and the lowest in the treatment M1R3F2, M1R2F3 are 20days. The highest percentage of disease incidence in the treatment M0R0F1 are 88.89% andthe lowest in the treatment M1R2F3 are 22.22%. The highest disease severity in the treatmentM0R0F1 are 35.56% and the lowest in the treatment M1R2F3 are 8.89%.Keywords: Mycorrhizal Arbuscula Fungi, Fusarium oxysporum f.sp cubense,Radopholus similis, banana

BIOREMEDIASI TANAH TERCEMAR LOGAM BERAT Cd, Cu, DAN Pb DENGAN MENGGUNAKAN ENDOMIKORIZA Riri Rizki Chairiyah; Hardy Guchi; Abdul Rauf
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

The objective of this research was to study the influence of endomycorrhizae on bioremediationheavy metals of Cd, Cu, and Pb. The research was conducted from April 2012 until February 2013used non factorial randomized block design with 5 replications and 5 treatments. Applications ofheavy metals treatments are: Control (non-application of endomycorrhizae and heavy metals), L0(application of endomycorrhizae and non-application of heavy metals), L1 (application ofendomycorrhizae and heavy metals Cd 1,5 ppm, Cu 20 ppm, and Pb 60 ppm), L2 (application ofendomycorrhizae and heavy metals Cd 2,25 ppm, Cu 25 ppm, and Pb 200 ppm), and L3 (applicationof endomycorrhizae and heavy metals Cd 3 ppm, Cu 30 ppm, and Pb 340 ppm). Heavy metals wereapplied 3 weeks before planted and endomycorrhizae was applied when planting. The plants keptuntil vegatative phase in the screen house.The result of this research showed that the application of endomycorrhizae decreased Cu and Pbavailablity in soil. In the plants, application of mycorrhizae decreased Pb uptake. Applications ofendomycorrhizae and heavy metals increasing mycorrhizae infection rates, but has no effect toheavy metals uptake, shoot dry weights, root dry weights, and pH H2O soil. Heavy metalsavailability in soil only significant to Pb availability after heavy metals applications.

POTENSI CENDAWAN ENDOFIT DALAM MENGENDALIKAN Fusarium oxysporum f.sp. cubense DAN NEMATODA Radopholus similis Cobb. PADA TANAMAN PISANG BARANGAN (Musa paradisiaca L.) DI RUMAH KACA Rizki Trianno Sinaga; Lisnawita Lisnawita
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Potential of endophytic fungal to control Fusarium oxysporum f.sp. cubense (Foc) andnematode Radopholus similis (Rs) on banana cv. Barangan (Musa paradisiaca L.) crop ongreenhouse. This research aims to intens and find potential endophytic as biocontrol agents tocontrol Foc and Rs on banana cv. Barangan crop. This research used Completely RandomizedDesign (CRD) non factorial consist thrithteen treatments and three replications. Replications;control (without inoculated), inoculated 300 Rs, inoculated Foc, inoculated 300 Rs one week laterinoculated Foc two weeks later inoculated endophytic 5BSBH’s isolate, inoculated 300 Rs oneweek later inoculated Foc two weeks later inoculated endophytic 4BSU’s isolate, inoculated 300 Rsone week later inoculated Foc two weeks later inoculated endophytic 1BJH’s isolate, inoculated 300Rs one week later inoculated Foc two weeks later inoculated endophytic 1BTAH’s isolate,inoculated 300 Rs one week later inoculated Foc two weeks later inoculated endophytic 1BSHT’sisolate, inoculated endophytic 5BSBH’s isolate one week later inoculated 300 Rs two weeks laterinoculated Foc, inoculated endophytic 4BSU’s isolate one week later inoculated 300 Rs two weekslater inoculated Foc, inoculated endophytic 1BJH’s isolate one week later inoculated 300 Rs twoweeks later inoculated Foc, inoculated endophytic 5BSBH’s isolate one week later inoculated 300Rs two weeks later inoculated Foc, inoculated endophytic 1BSHT’s isolate one week laterinoculated 300 Rs two weeks later inoculated Foc. The results showed that endophytic fungal hadthe potency as biocontrol agent in controlling Fusarium wilt of banana cv. Barangan.Keywords: Endophytic fungal, Fusarium oxysporum f.sp. cubense, Radopholus similis.

KAJIAN DISTRIBUSI CURAH HUJAN PADA BEBERAPA STASIUN PENAKAR CURAH HUJAN DI DAS PADANG Rodrik T Rodrik T; Kemala Sari Lubis; Supriadi Supriadi
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

This study was conducted to determine the frequency distribution of rainfall at Padang watershed.This research used descriptive statistic analysis by using rainfall data. Data’s used from nine station(Brohol, Pabatu, Kotarih, Silau Dunia, Gunung Para, Gunung Pamela, Gunung Monako, andMaligas) on 10 years. Suitability of pattern frequency distribution determined coefficient skewnessand kurtosis coefficients. The results show that the Gumbel distribution and Log Person Type IIImost suitable for distribution pattern of rainfall in the watershed Padang.

PERTUMBUHAN ISOLAT Phytophthora infestans (Mont.) de Bary TANAMAN KENTANG DAN TOMAT PADA BERBEDA MEDIA DI LABORATORIUM Sri Ahdani Yuta; Mukhtar Iskandar Pinem; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

The growth of Phytophthora infestans (Mont.) de Bary isolate of potato and tomato ondifferent media at Laboratory. This Research was to study the growth of P. infestans on differentmedia at Laboratory. This research was done in Laboratory of Plant disease, AgroecotechnologyProgram Study, Faculty of Agriculture, University of Sumatera Utara, Medan from July toDecember 2012. The method of This research was Completely Randomized Design Factorial withtwelve combinations and two replications. The results showed that the easiest growth isolate ofP. infestans on media was founded potato tubers (I2). The Best growth media of P. infestans wasfounded on media TEA (M3). The fastest growth and diameter of P. infestans was founded inpotato tubers on media TEA (I2M3) and slowest in the potato tubers isolates on PDA (I2M1).Macroscopic and microscopic morphology all isolates are completely same.Keywords: Phytophthora infestans, media, morphology.

RESPONS PERTUMBUHAN KEDELAI TERHADAP PEMANGKASAN DAN PEMBERIAN KOMPOS TKKS PADA LAHAN TERNAUNGI Suci Islami Pane; Lisa Mawarni; T Irmansyah
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Response growth of soybean by cutting and giving empty fruit bunches of oil palm compost inshaded area.Using of shaded area for soybean plantation faced trouble such yield decreasing.For that purpose cutting and giving empty fruit bunches of oil palm (EFBOP) compost aimed toincrease growth of soybean in shaded area. This research was conducted at experimental field ofFakultas Pertanian USU in January-April 2013 using factorial randomized block design with twofactor, i.e. time of cutting (no cutting, cutting in V5, cutting in R1) and dose of EFBOP compost(0, 10, 20 and 30 ton per ha). Parameter observed were plant height, summarize of leaf area, stemdiameter, and shoot root ratio. The result showed that cutting significantly decreased plant heightbut increase all parameter observed. Dose of EFBOP compost significantly increased summarize ofleaf area and stem diameter. The interaction of two factor significantly increased summarize of leafarea. The best result were showed by cutting in V5 and giving 30 ton per ha EFBOP compost.Keywords : cutting, EFBOP compost, shaded area, soybean.

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