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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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RESPOMS PERTUMBUHAN DAN PRODUKSI SAAWI (Brassica Juncea. L) TERHADAP INTERVAL PENYIRAMAN DAN KONSENTRASILARUTAN PUPUK NPK SECARA HIDROPONIK Marnangon Alfa Tambunan; Asil Barus; Jasmani Ginting
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

The aimed of this reaserch was to determine the flush interval and consentration of NPK fertilizer which is suitable to the growth and production of mustard (Brassica juncea L.) This research was conducted at green house’s Agricultur faculty University of Sumatera Utara, Medan with a height of 25 metre sea level rise on Februari until April 2012. This research was conducted by factorial randomized block design with two factors such as flush interval (1,2,3 in a day) and NPK fertilizer 0, 2.5, 5, 7. 5, 10 (g/l water). The parameters observed were plant height, the number of leaf, leaf area, the scale of leaf chlorophyll , the weight biomass of plant, The fresh weight of selling, the weight of roots, the root’s length and the harvest indeks. The result of the observations showed that the flush interval had ureal effect to all of the parameters except the root’s weight, while the NPK fertilizer had a real effect to all of the parameters.

RESPONS PERTUMBUHAN TEMBAKAU DELI (Nicotiana tabaccum (L.)) PADA BEBERAPA JENIS KAPUR DAN TANAH DI SUMATERA UTARA Martua M Silaban; Jonis Ginting; Asil Barusd
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Response of growth of deli tobacco (Nicotiana tabaccum (L.)) on some kind of lime and soil types in North Sumatera. Deli tobacco is variety of tobacco that is used as world top quality wrapper of cigar . But, in last years production of deli tobacco had been decreasing because of land degradation. Consequently, it is important to develop deli tobacco plantation to another soil types that is combine by giving some kind of lime. The aim of this research was to examine growth of deli tobacco (Nicotiana tabaccum (L.)) on some kind of lime and soil types in Noerth Sumatera. The research was conducted in the land of the Research Center of Deli Tobacco (BPTD) Sampali PTPN II, starting from February to May 2012, using a randomized block design (RBD) factorial with two factors and three replications . The first factor is soil types (alluvial, andosol, hidromorf, ultisol). The second factor is the kind of lime (dolomite, calsit, kaptan). The results showed that soil types significantly affect on plant height, diameter of stem, number of leave, thick leaf sand, 1 foot thick leaves, long leaves sand, 1 foot long leaves, leaf width sand, and 1 foot wide leaves. Kind of Lime and the interaction between soil and lime is not significantly affect for all parameter observed. Keywords: soil, lime, Tobacco Deli.

PENGARUH BIOMASSA AZOLLA TERHADAP STATUS LOGAM BERAT TIMBAL (Pb) PADA TANAH Muhammad Abror; Teuku Sabrina; Benny Hidayat
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Research on title the effect of Pb-Polluted azolla biomass on polluted on lead heavy metal status at polluted and unpolluted soil with Pb aimed to evaluate the potency of Pb-polluted azolla biomass on the availability of Pb in soil. The experiment design was factorial randomized block design with 2 factors and 3 replications. First factor was Pb-polluted azolla biomass with 3 treatments 0 g/kg, 15 g/kg and 30g/kg, second factor was Pb application with 3 treatments 0 ppm/kg, 150 ppm/kg, and 300 ppm/kg. The parameters was soil pH, organic matter. Pb total and available Pb from 1 week and 2 weeks after applying Pb-polluted azolla. The result showed that application of Pb-polluted azolla biomass increased 20% and 30% the availability of Pb after 1 week compare to control for Pb-polluted azolla treatment 15 g/kg and 30 g/kg respectively. Application of Pb-polluted azolla biomass did not significantly affected the soil pH and increasing soil organic matter. Meanwhile application of Pb polluted azolla biomass on unpolluted soil increased Pb-available about 60% and 85% compare to control for azolla biomass applying 15 g/kg and 30 g/kg, and also increasing soil organic matter content. In the second week, Pb-polluted azolla biomass increased Pb availability in unpolluted soil around 75% and 82% for azolla treatment 15 g/kg and 30 g/kg respectively. Meanwhile in the treatment applying 300 ppm Pb, application of Pb-polluted azolla decreased 8% Pb of available. In general, the effect of application Pb-polluted of azolla biomass increased the amount of Pb available and soil organic matter in the soil and pH decreased with time.

PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS KEDELAI ( Glycine max L.Merrill ) PADA BERBAGAI TINGKAT PENAUNGAN TAHAP KEDUA Muhammad Iqbal; Lisa Mawarni; Charloq Charloq
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

This research aims to know the growth and production various types of soy beans in the second stage various levels of shade. This research was done on Faculty of Agriculture field Universitas Sumatera Utara. On July until October 2011 in Medan. This research was used split plot design factorial methods with two factors, shade (0%, 20%, 40%, 60%) as the main plot and varieties (Anjasmoro, Pangrango, Tanggamus, Nanti) as subplot. The result showed that the shades to significant effect against plant height, the number of branches on the main stem, number of beans per plant, number of seeds per plant, production per plot, weight of 100 seeds. Varieties factor gave significant effect to percentage of germination, number of seeds per plant, weight of 100 seeds. interaction shading and varieties was significant effect to percentage of germination. ________________________________________________________________________________ Key words: shade, varieties,and soybean

ADAPTASI BEBERAPA VARIETAS BAWANG MERAH (Allium ascalonicum L.) PADA DATARAN RENDAH DENGAN PEMBERIAN PUPUK KANDANG DAN NPK Ahmad Andri Kusuma; E. Harso Kardhinata; Mbue Kata Bangun
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The adaptation of some shallot varieties has been conducted with the application of chicken manure andNPK fertilizer. The goal of this research is to know the adaptation of some shallot varieties in lowlandapplication of chicken manure and NPK fertilizer. The research was conducted at community land onPasar 1 Medan Selayang, Medan with altitude of 25 meters above sea level from May to July 2012. Usingrandomized block design. The first factor is three shallot varieties are Kuning, Medan, and Maja. Thesecond factor is four types of fertilizer; control, 240 g/plot chicken manure, 48 g/plot NPK, and chickenmanure plus NPK. The results showed that the varieties and fertilizer are significant in the fresh weightand number of cloves but not significant in plant height, number of tillers per hill, and dry weight. Whereas the interaction between varieties with fertilizers are not significant in all parameters. Heritability valuesranged from 0.03 - 0.87. All of the varieties tested have not been able to adapt well in the lowland interms of production so further studies using different varieties in the lowland is suggested.Key Words : shallot varieties, low land, chicken manure, NPK fertilizer.

VIRULENSI NUCLEAR POLYHEDROSIS VIRUS (NPV) TERHADAP ULAT GRAYAK (Spodoptera litura F.) (Lepidoptera : Noctuidae) PADA TANAMAN TEMBAKAU DELI DI RUMAH KACA Rimadhani, Ade Sartika; Bakti, Darma; Tobing, Maryani Cyccu
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v1i4.4349

The Virulence of Nuclear Polyhedrosis Virus (NPV) of Tobacco Caterpillar (Spodoptera litura F.)(Lepidoptera : Noctuidae) on Deli Tobacco In Glasshouse. Spodoptera litura(Lepidoptera : Noctuidae) is one important of pests on Deli tobacco. This research was study thevirulence of Nuclear Polyhedrosis Virus of larvae S. litura on Deli tobacco in Glasshouse. Thisresearch was carried out at Central Research Deli Tobacco Sampali PTPN II Medan fromMay to September 2012. The method of this research was Randomized Complete Design Factorialwhich consists stages of larvae (2nd and 4th instar) and the number of virus suspenses (10, 20, and 30larvae infected virus/1 l water) with three replications. The results showed that highest percentagemortality (91.67%) was found in treatment 2nd instar with suspense 30 larvae infected virus/1 l waterand the lowest percentage (0%) on control. The highest percentage of damage intensity (33.06%)was control and the lowest percentage (15.58%) on suspense 30 larvae infected virus/1 l water. Thefastest incubation period in the treatment 4th instar are I.67 days and suspense of 30 larvae infectedvirus/1 l water are 1.83 days and the lowest in the treatment 2nd instar are 2.58 days and controldidn’t showed symptoms infection.

EFEKTIFITAS JARAK TANAM DAN JUMLAH BENIH PER LUBANG TANAM TERHADAP PERTUMBUHAN DAN PRODUKSI PADI GOGO Agus Hariadi Pinem; Asil Barus; Chairani Hanum
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Effectiveness of different planting distance and number of seedlings per hill on growth and yield ofUpland Rice, supervised by Ir. Asil Barus, MS. and Dr. Dra. Ir Chairani Hanum, MS. The researchwas conducted in the field UPT BBI, at an altitude ± 57 m above sea level in April-July 2012 usingRandomized Block Design (RBD) factorial with two factors which are different planting (20 x 20cm, 20 x 25 cm , 20 x 30 cm) and the number of seedlings (2, 3, 4, 5, 6 seed /hill). The parametersmeasured were plant height, number of tillers, dry weight of the canopy, the canopy destructive dryweight, root dry weight, number of panicle, number of grain hollow, productive grain number, grainweight for each hill, 1000 grain weight and production for each plot. The results showed that allparameters significantly affected by the diiferent planting distance and number of seedlings per hilltreatment plant height, canopy dry weight, root dry weight, number of grain productive, and 1000grain weight.Keywords:

RESPON PERTUMBUHAN BIBIT KAKAO (theobroma cacao. L TERHADAP PEMBERIAN KOMPOS BLOTONG DAN PUPUK NPKMg PADA MEDIA SUBSOIL ULTISOL Sinabariba, Agustua; Siagian, Balonggu; Silitonga, Sanggam
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v1i4.4351

This research aims to test the response of seedling growth of cocoa (Theobroma cacao L) againstNPKMg fertilizer (15: 15: 6: 4) and the filter cake compost on soil media subsoild Ultisol. Thisresearch using randomized block design (RBD) factorial with 2 (two) treatment factors. The firsttreatment is: Compost filter cake with 4 level: M0 = subsoil Ultisol + compost filter cake (5kg+ 0 kg), M1 = subsoil Ultisol + compost filter cake (3.75 kg + 1.25 kg), M2 = subsoil Ultisol +compost filter cake (2.5 kg + 2.5 kg) , M3 = subsoil Ultisol + compost filter cake (1.25 kg+ 3.75 kg). The second factor, namely: Fertilizer dose NPKMg follows: P0 = 0 g / polybag,P1 = 3 g / polybag, P2 = 6 g / polybag and P3 = 9 g / polybag. Parameters measured wereseedling height, stem diameter, number of leaves, total leaf area, canopy wet weight, dry weightcrown, root wet weight and dry weight of roots. The result showed that the treatment effect is notreal compost filter cake growth of cocoa seedlings. NPKMg fertilizer treatment significantlyinfluenced all parameters were observed, namely: plant height, stem diameter, number of leaves,canopy wet weight, dry weight crown, root wet weight and dry weight of roots. Interactionblotong compost and fertilizer NPKMg unreal effect on the growth of cocoa seedlings..Keywords: cocoa seeds, compost and fertilizer blotong NPKMg

PENGGUNAAN JAMUR ANTAGONIS Trichoderma sp. dan Gliocladium sp. UNTUK MENGENDALIKAN PENYAKIT LAYU FUSARIUM PADA TANAMAN BAWANG MERAH (Allium ascalonicum L.) Ramadhina, Arie; Lisnawita, Lisnawita; Lubis, Lahmuddin
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v1i4.4352

The use of antagonism fungus of Trichoderma sp. and Gliocladium sp. for controlling wilt(Fusarium oxysporum) in red onion plants. The aim of the research was to know the effectiviness ofantagonism fungus of Trichoderma sp. and Gliocladium sp. in controlling wilt in red onion plants.The research used non-factorial RAK (random group design) with eight treatments: control, 10grams of F. oxysporum, 12 grams of Trichoderma sp., 18 grams of Trichoderma sp., 24 grams ofTrichoderma sp., and 12 grams of Gliocladium sp., 18 grams of Gliocladium sp., 24 grams ofGliocladium sp., and three repetitions. The result showed that the worst-highest disease was incontrol with 10 grams of F. oxysporum (2.60%) and the lowest disease was in control, 18 grams ofTrichoderma sp., 24 grams of Trichoderma sp., 18 grams of Gliocladium sp., and 24 grams ofGliocladium sp. (0.71%). The accident of the highest disease was in 10 grams of F. oxysporum(5.01%) and the lowest was in control, 18 grams of Trichoderma sp., 24 grams of Trichoderma sp.,18 grams of Gliocladium sp., and 24 grams of Gliocladium sp. (0.71%). The largest number ofleaves was in 24 grams of Trichoderma sp. (36 leaves), and the smallest was in 10 grams of F.oxysporum (29 leaves). The highest plants was in 24 grams of Gliocladium sp. (40.20 cm) and thelowest in 10 grams of F. oxysporum (37.26 cm). The largest number of F. oxysporum colonies in 10grams of F. oxysporum (8.86%). The highest production was in 24 grams of Trichoderma sp. (2.34tons/ha) and the lowest in 10 grams of F. oxysporum (1.56 tons/ha). The test of antagonism fungusof Trichoderma sp. and Gliocladium sp. on F. oxysporum indicates that the growth of both types ofantagonism is faster so that F. oxysporum tends to keep away from antagonism in the medium of thelaboratory.Keywords: Trichoderma sp., Gliocladium sp., Fusarium oxysporum, antagonism

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

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