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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

Arjuna Subject : -

Articles 943 Documents

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Identifikasi Karakteristik Morfologis dan Hubungan Kekerabatan pada Tanaman Jahe (Zingiber officinale Rosc.) di Desa Dolok Saribu Kabupaten Simalungun Indah Aryanti,; Eva Sartini Bayu; Emmy Harso Kardhinata
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The objective of research was to identify morphological characteristics and phylogenetic relationships of ginger at Simalungun District, Dolok Saribu village of Dolok Pardamea. The research was conducted from July to September 2014 by using descriptive method consists of 15 samples. The result showed that there were two types of ginger : large white ginger and red ginger. The qualitative character were five identical and five different morphological characters and the quantitative character was obtained four narrow and six wide morphological characters. The closest phylogenetic relationships are samples A4 (large white ginger) with A9 (large white ginger) with coefficient of distance value is 2.723, meanwhile the farthest phylogenetic relationships are samples A1 (large white ginger) with A11 (red ginger) with coefficient of distance value is 36.598. The result of dendogram showed at scale 5 was formed 10 groups, scale 10 was formed 5 groups, scale 15 was formed 4 groups, scale 20 was formed 3 groups and scale 25 was formed 2 groups. Group 1 consists of large white ginger and group 2 consists of red ginger. Phylogenetic relationships between ginger plants at Dolok Saribu village of Simalungun District still have a close level relationships.Keywords : Identification, ginger, morphology

Pengaruh Pemberian Asam Humat dan Kompos Tandan Kosong Kelapa Sawit terhadap Pertumbuhan dan Produksi Bawang Sabrang (Eleutherine americana Merr.) Pingkan Welvari Sembiring; Haryati Haryati; Rosita Sipayung
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The using of herbal medicine has increasing rapidly recently. One of the medical plant that has been developing is bawang sabrang. The aim of the research is to find out the proper dosage of humic acid and empty palm bunches compost for cultivated of bawang sabrang. Research was conducted at experimental field Faculty of Agriculture, University of Sumatera Utara, Medan about 25 m above sea level started from June until October 2014, used randomized block design, with two factors which are humic acid at several doses (0 g/plot, 1 g/plot, 2 g/plot, 3 g/plot) and palm empty fruit bunches compost at several doses (0 kg/plot, 0,5 kg/plot, 1 kg/plot dan 1,5 kg/plot) and was repeated three times. Data were analyzed by using ANOVA and continued with Duncan. Parameters were observed is net assimilation rate, relative growth rate, number of tillers, fresh bulb weight and number of bulb. The result showed that the effect of humic acid were increasing the net assimilation rate at fifth week after planting (WAP). The effect of empty palm bunches compost were increased the relative growth at four week and net assimilation rate at fifth week. The interaction between humic acid and empty palm bunches compost were increased the net assimilation rate at fifth week, but the effect of giving humic acid and empty palm bunches compost at number of tillers, fresh bulb weight and number of bulb parameters has not real.Keywords: humic acid, compost of empty palm bunches, Eleutherine americana Merr.

Kandungan Hara Tanah dan Tanaman Karet Menghasilkan Terhadap Pemberian Tandan Kosong Kelapa Sawit (TKKS) dan Jumlah Lubang Biopori Ando Tikkos M Simbolon; Chairani Hanum; Ratna Rosanty Lahay
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

Nutrient conten of the soil and rubber produced by giving empty oil palm fruit bunches and the number of biopori holes. Rubber is a kind of plant which is important and can increase income and social prosperity. This research cond ucted at Silau Dunia garden PTPN III Serdang Bedagai on August – December 2014 by using random missed block design with two factors. The first factor is empty oil palm bunches contained : 0, 1, 2 and 3 kg for each biopori and the second factor is the number of holes consisted : 4, 8 and 12, With three replication. The results of this research showed that interaction application empty fruit bunch and number of biopori increase of N soil, N leaf and Cholorofil number.Keywords: Biopori, palm empty bunches, RubberABSTRA

Pengaruh Konsentrasi Zat Pengatur Tumbuh dan Sumber Bud Chips Terhadap Pertumbuhan Bibit Tebu (Saccharum officinarum) di Pottray Haris Patar; Asil Barus; Irsal Irsal
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

This study was conducted in PTPN II Kebun Tanjung Jati, Binjai on June until August 2014. The design of the experiment was randomized block design arranged in factorial with two factors. The first factor was the concentration Rootone F plant growth regulator with 4 levels of each R0 (0 mg/l), R1 (200 mg/l), R2 (400mg/l) and R3 (600 mg/l). The second factor was source of bud chips that origin from 3 parts of stem C1 (top), C2 (middle) dan C3 (bottom). The Parameter observed includes percentage of bud growth ≥ 5%, percentage of bud growth (%), plant height (cm), number leafs (sheet), diameter of stem (mm), volume of root (ml), fresh weight of crown (g), fresh weight of root (g), dry weight of crown (g) and dry weight of root (g).The result of research showed that Rootone F plant growth regulators influential significantly on percentage of bud growth ≥ 5%, diameter of stem 6-10 weeks after planted, volume of root, fresh weight of root, and dry weight of root. Sourced of bud chips influential significantly on percentage of bud growth ≥ 5%, percentage of bud growth 1 and 2 weeks after planted, plant height 2-10 weeks after planted and diameter of stem 2-8 weeks after planted. Interaction between consentration Rootone F plant growth regulator and source of bud chips haven’t the real influences toward all the parameter were observed.Keywords : Plant growth regulators, source of bud chips, sugarcane

Penentuan Jenis Mineral Liat Alofan Tanah Andisol di Desa Dolat Rakyat Kecamatan Tiga Panah Kabupaten Karo Jupri Simamora; Purba Marpaung; Alida Lubis
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The aim of the research was to determinate type of Allophane minerals by means of Thermogram and to know type of Allophane minerals with Allophane–Organic Matter relations. The research was done in Dolat Rakyat villages, District of Tiga Panah Karo Regency, In Soil Fertility Laboratory University of North Sumatera, and College of Chemical Industry (PTKI), Medan in June - October 2014. Soil type is Andisol. The result of the research in Dolat Rakyat Village Tiga Panah District, Regency of Karo Thermogram interpretation showed that type of Allophane minerals Andisol that is Allophane B. Allophane-Organic Matter relations showed that type of Allophane minerals is Allophane B with positive relations between Allophane-Humic Acid; negative relations between Allophane-Fulvic Acid, and Allophane-Humic Acid+Fulvic Acid.Key Word : Allophane, Andisol, Organic Matter

Pengaruh BAP ( 6-Benzylaminopurine ) dan Pupuk Nitrogen terhadap Pertumbuhan dan Produksi Bawang Merah (Allium ascalonicum L.) Ramosta Simajuntak hidayat; Rosita Sipayung; Meiriani Meiriani
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

BAP has a fuction to accelerate the formation of buds and accelerate the growth of vegetative. Nitrogen fertilizer a fuction to inrease of vegetative growth. This reasearh was conducted at experimental field of college agriculture The Sumatera Utara University in June until August 2014. The design of the experiment was randomized block design arranged in factorial with two factors. The first factor was the BAP with 4 levels of each B0 (0 ppm), B1 (20 ppm), B2 (20 ppm) and B3 (30 ppm). The second factor was the nitrogen fertilizer with 4 level of each N0 (0 g/plant). N1 (0.4 g/plant, N2 (0.8 g/plant), N3 (1.2 g/plant). The results showed the giving of BAP until 20 ppm has a significantly effect increase plant height, number of leaves, number of bulb at 1-2 MST. The nitrogen fertilizer treatment has a significantly effect towarde plant height 8 MST, totally leaf area, plant rate growth, greenish leaf and dry weight per sample. The interaction BAP and nitrogen fertilizer has not a significantly for all parameters.Key words : 6-Benzylaminopurin, nitrogen, shallot

Kajian Selektivitas Erosi Pada Lahan Budidaya Padi Gogo Di Desa Lau Damak Kecamatan Bahorok Kabupaten Langkat Rika Tamika; Abdul Rauf; Purba Marpaung
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

Gogo rice as one of many commodities developed on sloping topography, thus potentially increasing run off a water and soil erosion that will transport nutrients to the other place. The aim of the research was to know the Erosion Selectivity on Land Cultivation of Gogo Rice in Countryside of Lau Damak Distric of Bahorok Sub-Province Langkat. The research was conducted from September until November 2014 through 2 stages of activity, it was fieldwork and laboratory activities. The Stages of fieldwork has done in village at Lau Damak District of Bahorok Langkat on 15% slope. The results of field activities was analysis in agriculture faculty laboratory,University of North Sumatra, Medan. The reseach use a t-test to differentiate the nutrients at upper, center, and bottom of the slope. The selectivity of erosion can be seen from the changes in the levels of clay and organic Carbon in the upper, middle and lower slopes. Selectivity erosion can also be seen from the changes, total-N, available P, pH, K, CEC, and soil texture on the part of the slope.The results showed that the Organic Carbon and Total-Nitrogen were significantly differenton the slopes position.Key words : Soil Erosion, selectivity erosion, gogo rice

Studi Pertumbuhan dan Produksi Dua Varietas Bawang Merah (Allium ascalonicum L.) Terhadap Waktu Penyiangan Gulma Josua Bonar Pohan; lisa Mawarni; Toga Simanungkalit
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The time of weeding between weed and shallots can influence the decreasing of growth and productions. The uncorrect time of weeding can make looses. This research had been conducted at Simalingkar residences in Juny until September 2014 using factorial randomized block design with two factor, The first factor was 7 times of weeding K1: clean of weed for 0-3 weeks, K2 : clean of weed for 0-5 weeks, K3: clean of weed for 0-7 weeks, K4: without of weed for 0-3 weeks, K5: without of weed for 0-5 week, K6: without of weed for 0-7 weeks, and K7: clean of weed until harvest and two factor as varieties namely V1 Bima and V2 Medan. The parameters were plant height per tuber, number of leaves per tuber, numbers of tillersper hill, fresh tuber production per plot, dried tuber production per plot, kind of weed .The result showed that the time of weeding significantly decrease plant height of 3 weeks after plants (wap) and number of leaves at 5 wap .Keywords: the time of weeding, varieties, growth and yields, shallots

Identifikasi dan Inventarisasi Genotip Tanaman Ubi kayu (Manihot esculenta Crantz) di Kabupaten Serdang Bedagai Sumatera Utara Muhammad Fauzi; Emmy Harso Kardhinata; Lollie Agustina P Putri
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The objective of this research was to document and characterize phenotypically cassava genotypes. Using survey methodology, the sample of cassava genotypes were collected from three sub-districts of Serdang Bedagai Regency, i.e. Perbaungan, Serbajadi, and Dolok Masihul with three villages for each sub-district, i.e. Jambur Pulau, Suka Jadi, Lidah Tanah, Tanjung Harap, Kuala Bali, Karang Tengah, Dolok Manampang, Kota Tengah, and Kampung Mangga. This descriptor list aims at helping to standardize characterization data was taken from National Commision for Genetic Resources 2014 i.e; the ratio of lobe length to lobe width of of central leaf lobe, number of leaf lobe, petiole length, petiole color, plant height, distance between lef scar, color of upper stem, color of stem exterior, color of stem epidermis, diameter of cassava root, length of cassava root, number of cassava root/plant, average of cassava root weight, and cassava productivities. The result of research showed the specific characteristics of cassavas which have different lower and upper stem in case of color which were green, reddish green, grey, and amber; different colors of cassava root cortex which were rose/ white, yellow, and amber. The result obtained 7 genotypes of cassava that with various local name depend on the lecation i,e; Malaysia, Roti, Adira-1, Kalimantan (Banjar), Valencia, Lampung and Pulut.Keywords: Cassava, identification, inventarisation

Respons Pertumbuhan Bibit Bud Chips Tebu (Saccharum officinarum L.) terhadap Dosis dan Frekuensi Pemberian Pupuk N, P dan K pada Wadah Pembibitan yang Berbeda Riki Rikardo Situmpul; Ferry Ezra Sitepu; Meiriani Meiriani
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

Provision of sugarcane seed with hight quality bud chips technic be affected by availability of nutriens in the soils requiring fertilization to nutrient requitments sugar cane seed. The research was conducted at nursery PT. Perkebunan Nusantara II Tanjung Jati, Binjai (40-50 meters above sea) from Mei-August 2014 using factorials split plot design with three factors: container nursery (polybag and pottray), dose fertilizer of N (Urea), P (SP-36), K (KCl) (6 g/60 plant, 12 g/60 plant, 18 g/60 plant) and frecuent fertilizer (2 times, 3 times, 4 times). The results showed using polybag effected significantly increase stem hight 32%, number of leaf 18%, stem diameters 48% and number of tillers 51% than using pottray. Dose fertilizers 18 g/60 plant effected significantly to stem hight, number of leaf and stem diameters of. Frecuent fertilizers not effected significantly to all of observed parameters.Keywords : Sugarcane, Containers nursery, Dose and Frecuent fertilizer

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