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All Journal AGROEKOTEKNOLOGI PERTANIAN TROPIK

rosita sipayung

universitas sumatera utara

Author-ID : 2980652

Agriculture, Biological Sciences & Forestry

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PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.) DENGAN PEMBERIAN PUPUK KANDANG AYAM DAN EM4 (Effective Microorganisms4 Ashrafida Rahmah; Rosita Sipayung; Toga Simanungkalit
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Shallot is the one of leading vegetable which has long been cultivated by farmers intensive, the lowyields of shallot in Indonesia is caused by the use of low quality seeds and planting medium that isnot good. Efforts to increase onion yields, among others by chicken manure and EM4. Thisresearch has been conducted to obtain the optimal dose the effect of chicken manure and EM4application on the growth and yield of the shallot. Research was conducted on Jalan Pasar Satu,Medan Selayang, Medan with a height of 25 m above sea level on June to August 2012. usingrandomized block design of two factors, the factors are chicken manure (0, 40, 80, 120 g / plant) andEM4 (0, 3.5, 7 cc / l of water). The parameters observed were plant height, tillers number, leafnumber, wet weight per sample, wet weight per plot, dry weight per sample, dry weight per plot andclove number. The results showed that treatment of chicken manure significantly influenced all theparameters in which a dose of 120 g / plant showed the highest yields. EM4 treatment significantlyinfluenced the parameters of wet weight per plot and dry weight per plot. Interaction of bothtreatments significantly influenced wet weight per plot, dry weight per plot, and the cloves numberper sample.Key words : shallot, chicken manure, EM4

PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum .L) TERHADAP PEMBERIAN KOMPOS KULIT KOPI DAN PUPUK ORGANIK CAIR Andi Sahputra; Asil Barus; Rosita Sipayung
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

ABSRACTShallot is one of the superior spice plants.Nowday, cultivation of shallot is directed for using inputfrom organic matter. Coffea peel compost and liquid organic fertilizer are potential nutrient sourceto use in organic cultivation of shallot. The growth and production of shallot by giving coffee barkcompost and liquid organic fertilizer. This research was proposed to find out effect of growth andproductions respons of shallot as coffee bark compost and liquid organic fertilizer. The researchstarted from october to december 2011. The design use randomized block design factorial with 2aspect. The first aspect is compost bark coffee consist of four stages those were K0 ( 0 g/plant ), K1( 30 g/plant ), K2 ( 60 g/plant ), ( 90 g/plant ). The second factor is liquid organic fertilizer consistfour stages those are P0 ( 0 ml/l water ), P1 ( 3 ml/l water ), P2 ( 6 ml/ l water ), P3 ( 9 ml/l water ).Coffee bark compost given ferform real effect to number of leave per clumb 6 MST, diameter ofbulk and production per plot but not gave any influenced to high of plant, leaves number per sample2 – 5 MST, number bulbs per sample, wet weight per sample and dry weight per sample. Liquidorganic fertilizer given ferform real effect to high of plant per sample 3 – 6 MST, leaves number persample 5 and 6 MST, diameter of bulk per sample and production per plot, but not gave anyinfluenced to high plant 2 MST, leave number per clump 2 – 4 MST, number bulbs per sample, wetweight per sample and dry weight of bulb per sample. The intraction between both aspectinfluenced on diameter of bulb.Key words : coffee bark compost, liquit organic fertilizer, shallot, growth and productions

PERTUMBUHAN DAN PRODUKSI BAWANG MERAH DENGAN PEMBERIAN BERBAGAI PUPUK ORGANIK Fitri Anisyah; Rosita Sipayung; Chairani Hanum
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

ABSTRACTGrowth and Yield of Shallot (Allium ascalonicum L.) with Application of the some of organicfertilizer. Application of in organic chemical fertilizers continuously without organic fertilizers hascaused soil degradation. One of the negative effect is decrease agriculture production such as shallotyield. A solution to solve this problem is to substitute chemical fertilizers application with organicfertilizer that can demage the soil into organik fertilizer. The objective of this research was to studygrowth and yield of shallot with application of organic fertilizer. The research was conducted inPasar 1 Tanjung Sari, from June until August 2012. The research using Randomized Block Designone factor with six compost, were without organic fertilizer (control), compost of empty fruitbuches oil palm, sludge, vermicompost, straw, and municipal solid waste. Parameters were: plantheight, number of plantlet, shoot root ratio, clove dry weight of sample, dry weight of sample andclove number of sample. The results showed that application of organic fertilizer did not hadpositive response to the growth of shallot except for number of plantlet on 3 weeks after plantingtime and shallot dry weight per sample.Key words : palm empty fruit bunches (PEFB), sludge, vermicompost, straw compost, municipalsolid wastecompost, Shallot

PERTUMBUHAN DAN PRODUKSI KACANG TANAH DENGAN PEMBERIAN KOMPOS TANDAN KOSONG KELAPA SAWIT PADA FREKUENSI PEMBUMBUNAN YANG BERBEDA Michael Sembiring; Rosita Sipayung; Ferry E. Sitepu
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Peanut is one of food plant that has high economical value because of its nutrient content especially proteinand fat. The other alternative to increase peanut productivity were application of empty fruit bunch compostand pile up frequency. The purpose of this study was to determine the effect of empty fruit bunch compostand pile up frequency toward the growth and production of peanut This research was held on JalanPenampungan, Delitua, Namorambe, Deli Serdang with altitude ± 25 metre,took place on April to July 2013. The study design was a factorial randomized block design with two factors, namely empty palm bunches (0,12, 24 and 36 g /plant) and pile up frequency (0; 21; 21,42 and 21,42,63 days). The parameters measuredwere plant height, number of branches, days to flowering, number of ginofor per sample, number of pods persample, number of pods per plot, weight of pods per sample, the weight of pods per plot, seed weight persample, dry weight of 100 seeds. The results showed that composting of empty palm bunches significantlyaffect the parameters of number of ginofors per sample. Pile up frequency significantly affected the numberof pods per plot. Treatment interaction significantly affected the number of ginofors per sample.Keywords: peanut, empty palm bunches, pile up frequency.

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

UJI DAYA SIMPAN DAN VIABILITAS BENIH KARET (Hevea brasiliensis Muell-Arg.) TANPA CANGKANG TERHADAP KONSENTRASI LARUTAN OSMOTIK DAN LAMA PENGERINGAN Nikko SeptianFazilla; Charoq Charoq; Rosita Sipayung
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

The seed of rubber is a kind of recalcitrant seeds which is have a low shelf life with the result thatquickly in deterioration so it needed a special treatment in storage period to maintain the seedviability. By using the osmotic solution concentration of Polyethylene Glycol 6000 and seed dryingwhich is very helpful in recalcitrant seed storage due to it has osmotic cell potential to restrict thealteration of water and oxygen capacity in seed. This research aimed to get the optimal of osmoticsolution concentrations and drying time to maintain the seed viability of Rubber. It conducted sinceApril until June 2013 in Laboratory of Plant Breeding, Agriculture Faculty, University of SumateraUtara. The research uses the completely randomized design with two treatments as factor and threereplications. The first factor is osmotic solution concentration of PEG 6000 of PEG 6000 : 0, 15,30, and 45 (% w/v) and other factor is drying period : 0, 4, 8, 12, 16 (hours). The results showed theosmotic solution concentration of PEG 6000 30% w/v significantly in seed growth rateafter storageperiod 3,49% etmal and maximum potential growth 64,22%. 4 hours drying period is the best inseed growth rateup to 3,49 3,89% etmalwith 66,94% maximum potential growth. The osmoticsolution concentrations of PEG 6000 30% w/v and 4-hour drying period is the best combination oftreatments which can seed growth rate up to 3,95% etmal with 66,67% maximum potential growth.Keywords: Rubber seed, osmotic solution concentrations of PEG 6000, drying, seed storage.

PENGARUH CURAH HUJAN DAN HARI HUJAN TERHADAP PRODUKSI KELAPA SAWIT BERUMUR 5, 10 DAN 15 TAHUN DI KEBUN BEGERPANG ESTATE PT.PP LONDON SUMATRA INDONESIA, Tbk Lastiar Ningsih Simanjuntak; Rosita Sipayung; Irsal Irsal
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

One of the determining factors of water supply for oil palm which does not use irigation system israin fall. Water supply is the main factor that cope production rate of oil palm. Water supply for oilpalm in field is obtained from rain fall. This research is done in PT.PP London Sumatra Indonesia,Tbk Begerpang Estate plantations, North Sumatera Province, Medan from June to September 2013.This research used secondary data available in company administration. Secondary data for analysisneed consists of component production data as total bunches, average bunches weight, total ofproductive trees, loose fruit weight; production of fresh fruit bunch (FFB); rain fall data and rainday monthly in 2008, 2009 and 2010 on 6 divisions. Analysis method used is double linierregression and correlation analysis. Model tested by classic asumption consists of normality test,heteroskedasticity test, multicollinearity, and autocorellations test by using statistic softwareSPSS.v.17 for windows. The regression analysis shows that rain fall and rain day variables havesignificant influence with alpha 5% (Sig < α 0,05) in FFB production aged 5 years. F-value is5,235 with significant level 0,031. Coeffisien determination obtained is 53,8%. It means 53,8%variance of FFB production can be explained by variables used in this research and the rest 46,2% isexplained by other variables which are excluded. Linier regression model on 5 years is Y = 145,982+ 1,451 rain fall – 27,005 rain day + E. Corelation result on 5, 10 and 15 years with two-tailedanalysis with significant level 1% shows that rain fall and rain day have tight, significant, and samedirection relationship. Corelation value of rain fall and rain day are 0,892; 0,887; and 0,855 eachwith significant level 0,000 (Sig < α 0,01).Keywords: rain fall, rain day, FFB production.

Tanggap Pertumbuhan dan Produksi Kacang Tanah (Arachis hypogaea L.) Pada Dosis Pupuk Kalium dan Frekwensi Pembumbunan Nelson Simanjuntak; Rosita Sipayung; Mariati Mariati
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Attempts to increase the yield of peanut can be done with fertilizer and pile up. The purpose of thestudy was to determine the response of KCl fertilizer and pile up frequency on the growth and yieldof peanuts. The research was conducted at Pasar I Tanjung Sari street, Medan with the height of 25metres above sea level, began from April until Juli 2013. The design of the research was arandomized block design with two factors. The first factor was dose of KCl fertilizer (0, 50, 100,and 150 kg/ha) and the second was pile up frequency (20; 20 and 40; and 20, 40, and 60 days afterplanted). The parameters observed were plant height, number of branches, flowering age, number ofginofor per sample, number of pods per sample, number of filled pods per sample, weight of podsper plot, weight of grain per plot, and weight of 100 grains. The results showed that the weight ofpods per plot and weight of grain per plot were significantly affected by pile up frequency. Howeverall parameters observed were unsignificantly affected by dose of KCl and treatment interaction.Key words : KCl fertilizer, pile up frequency, peanuts.

Respons Pertumbuhan dan Produksi Kacang Tanah (Arachis hypogaea L.) dengan Pemberian Pupuk Kandang Ayam dan Pupuk NPK (15:15:15) William Josua Damanik; Rosita Sipayung; Haryati Haryati
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

For the last six years in a row, the yield of peanut in Indonesia had encountered the decreasingyield problem. In case of that, the using chicken manure as organic material and NPK (15:15:15)fertilizer were aimed to increase growth and yield of peanut. The research has been conducted at theexperimental fields of Agriculture Faculty, Universitas Sumatera Utara, Medan from October 2013until February 2014. This research used factorial randomized block design with two factors, i.e.doses of chicken manure (0; 25; 50; 75 g/polybag) and doses of NPK (15:15:15) fertilizer (0; 0,625;1,25; 1,875 g/polybag). Parameters observed were number of branches, flowering age, gynophoresformed, pods per sample, pods per plot, seed weight per sample, dry weight of 100 seeds, freshweight of biomass, and dry weight of biomass. The results showed that the treatment of usingchicken manure significantly influenced the parameters of branches, gynophores formed persample, pods per sample, pods per plot, seed weight per sample, wet weight biomass per sample anddry weight biomass per sample. The treatment of NPK (15:15:15) significantly influenced theflowering age and dry weight of 100 seeds. The interaction between the both of treatmentsignificantly influenced dry weight of 100 seeds.Keywords : peanut, chicken manure, NPK (15:15:15) fertilizer

Pertumbuhan dan Produksi Bawang Merah (Allium ascalonicum L.) Terhadap Dosis LimbaCair Pabrik Kelapa Sawit dan Tipe Pemotongan Umbi Andi Setiawan; Rosita Sipayung; Toga Simanungkalit
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The research aimed to study about the response of growth and yield of shallot on palm oil milleffluent (POME) and type of bulb fission. The research has been conducted on land of AgriculturalFaculty USU (± 25masl) from April to Juny 2014, using a factorial randomized block design withtwo factors which are dosage of effluent (0; 1; 2; 3 l/plot) and the second factors were type offission (no fission, fissioned 1/3 part, fissioned into 2 part). The Parameters observed were plantheight, leaves number per clump, tillers number per clump, clove number, wet weight of bulb perplant, wet weight of bulb per plot, dry weight of bulb per plant and dry weight of bulb per plot. Theresults showed bulb fission treatment significantly increased for all parameters. Giving palm oil milleffluent significantly increased clove number and interaction of fission bulb treatment and givingpalm oil mill effluent non significantly increased for all parameters.Keywords:shallot, POME, fission

Co-Authors Ahmad Ridwan Lubis Andi Sahputra Andi Setiawan Ashrafida Rahmah asil barus Berson Berson Chairani Hanum Charloq Charoq Charoq Dila Novayana domas mesiekiel simanjuntak Ernika Septyma Br Pardede Fadli Azhari Harahap Ferry E. Sitepu Ferry Ezra Sitepu Fitri Anisyah Haryati Haryati Irsal Irsal Irwan Lesmana Bastari Jogi Hendro Siahaan Jonis Ginting Lastiar Ningsih Simanjuntak Lisa Mawarni Marcel Clinton Sihotang Mariati Mariati Meiriani Meiriani Michael Sembiring Muhammad Yusnan Lubis Nelson Simanjuntak Nikko SeptianFazilla Nini Rahmawati Pingkan Welvari Sembiring Ramosta Simajuntak hidayat Toga Simanungkalit William Josua Damanik Willy Andrew Tambunan

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