Articles

Found 15 Documents
Search

VIABILITAS BENIH ROSELA (Hibiscus sabdariffa L.) PADA BERBAGAI KADAR AIR AWAL DAN KEMASAN BENIH

AGROEKOTEKNOLOGI Vol 1, No 2
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (187.585 KB)

Abstract

The aim of the research was to studyseed viability of rosela  (Hibiscus sabdariffa  L.) during 3 months storage on various levels of initial seed moisture content and storage seed packaging. It was conducted in the Laboratory of Seed Technology, Faculty of Agriculture USU about 25 m sea level rise on Mei to September 2012 by using randomized block design with two factors. The first factor was various levels of initial moisture content(7%, 9% and 11%) and the second one was storage seed packaging(aluminium foil, polyethylene plastic and paper). Variables measured include moisture content, germination rate, grow potential, germination percentage and vigor index. The results showed that initial seed moisture contentshowed only significant effects on moisture content and storage seed  packaging showed significant effects on moisture content, grow potential, and germination percentage. Interaction of both treatments showed non significant effect on all parameters.   Key words : Rosela seed, moisture content, storage seed  packaging and seed viability.

RESPONS PERTUMBUHAN BIBIT KAKAO TERHADAP VERMIKOMPOS DAN PUPUK P

AGROEKOTEKNOLOGI Vol 1, No 4 (2013)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (298.339 KB)

Abstract

Response of Cacao (Theobroma cacao L.) Seedlings Growth on Application of Vermicompost andP Fertilizer. The research was conducted to determine response of cacao seedlings growth onapplication of vermicompost and P fertilizer. The research carried out at Faculty of AgricultureUSU’s Experiment Land with a height of 25 metre above sea level on August until November 2012by using Randomized Block Design of two factors which is the first factors were vermicompost(0%, 25%, 50%, 75%) and the second factor were P fertilizer (0, 2, 4, 6 g/plant). The parametersobserved were seedling height, leaf number, stem diameter, total of leaf area, seedling wet weight,seedling dry weight, root wet weight, root dry weight and shoot root ratio. The results showed thatvermicompost has significant effects on seedling height, leaf number and seedling dry weight. Theapplication of P fertilizer and interaction of them had no significant effects on all parametersobserved.Key words : vermicompost, phosphat, cacao

PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.) DENGAN PEMBERIAN PUPUK HAYATI PADA BERBAGAI MEDIA TANAM

AGROEKOTEKNOLOGI Vol 2, No 2 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (239.233 KB)

Abstract

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

RESPON PERTUMBUHAN DAN PRODUKSI SAWI (Brassica sinensis L.) DENGAN PEMBERIAN MINERAL ZEOLIT DAN NITROGEN

AGROEKOTEKNOLOGI Vol 2, No 3 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (167.651 KB)

Abstract

Production Growth response and mustard (Brassica sinensis L,.) By Giving Mineral Zeoliteand Nitrogen, guided by Jasmani Ginting dan Ferry Ezra Sitepu. This study aims to test theresponse of the growth and production of mustard on the provision of zeolite and ureafertilizer. The study was conducted in community land Setia Budi Road Simpang SelayangMedan district in May to July 2012. Experimental method used was a factorial randomizedblock design with 2 factors, namely the provision of zeolite (0 g, 50 g / plot, 100 g / plot, 150g / plot) and urea fertilizer (without urea, 0.2 g / tan. , 0.4 g / tan., 0.6 g / plant) with 3replications. The parameters measured were plant height, leaf area, leaf chlorophyll amount,weight biomass per plant, fresh weight per plant and sell the sample harvest index. The resultsshowed that administration of zeolite significant effect on all parameters. While the treatmentof urea fertilizer and the interaction between the two treatments did not significantly affect allparameters.Keywords: zeolite, urea, growth and production of mustard.

Respon Pertumbuhan Bibit Kakao (Theobroma cacao L.) terhadap Pemberian Pupuk Kandang Ayam dan Pupuk Organik Cair

AGROEKOTEKNOLOGI Vol 2, No 4 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (237.868 KB)

Abstract

One of the factors that determine the quality of cocoa seedlings is fertility of growing medium.Fertility of growing medium can be increase with fertilization. For that purpose by using of chickenmanure and liquid organic fertilizer be expected to increase cocoa seedlings. This research wasconducted in experimental field of Agriculture Faculty University of North Sumatera in June 2013-September 2013 using randomize complete block design with two factors. The first factor is dose ofchicken manure (0,150 and 300 g/polibag) and the second factor is dose of liquid organic fertilizer(0,15,30, and 45 cc/L of water). Parameters observed were plant height, number of leaves, stemdiameter,total leaves area, fresh weight of shoot, fresh weight of root, dry weight of shoot, dryweight of root and ratio of dry weight of shoot/dry weight of root. From the research, chikenmanure significantly affect on plant height (12 and 14 WAP), number of leaves( 8-12 WAP), stemdiameter, total leaves area, fresh weight of canopy, dry weight of canopy and fresh weight of root.Liquid organic fertilizer unsignificantly affect on all parameters. Interaction of chiken manure andliquid organic fertilizer unsignificantly affect on all parameters. The best result from thisexperimental were obtained in the treatment of chicken manure at 300 g/polybag and liquid organicfertilizer 15 cc /L of water .

Pengaruh Populasi Kacang Tanah (Arachis hypogaea L.) dan Jagung (Zea mays L.) terhadap Pertumbuhan dan Produksi Pada Sistem Pola Tumpang Sari

AGROEKOTEKNOLOGI Vol 3, No 1 (2015)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (147.465 KB)

Abstract

The purpose of the study was to determine the effect of the number of peanut and corn population tothe growth and yield in intercropping pattern system. The research was conducted at LambarVillage Tigapanah District Karo Regency, North Sumatera with the height of ±1200metres abovesea level, began from November 2013 until May 2014. The research was arranged with arandomized block design with two factors. The first factor was peanut population (20x20 cm, 30x20cm, 40x20 cm, 50x20 cm) and the second was corn population (60x20 cm, 70x20 cm, 80x20 cm).The parameters observed were peanut height, number of peanut leaf, corn height, number of cornleaf, number of pod per sample, peanut production per plot, weight of 100 peanut grain, peanut leafarea index, wet weight of corn cob, dry weight of corn cob, and corn production per plot. Theresults showed that corn height, number of corn leaf, peanut production per plot, weight of 100peanut grain, wet weight of corn cob, and peanut leaf area index were significantly affected bypopulation of peanut. Population of corn significantly affected the wet weight of corn cob, dryweight of corn cob, and corn production per plot. Analysis of data showed that the interaction ofpeanut and corn population were founded and significantly affected the corn height, number of cornleaf, and weight of 100 peanut grain.Keywords : peanut, corn, population.

Respons Pertumbuhan dan Produksi Brokoli Terhadap Pemberian Pupuk Kandang Ayam dan Jamur Pelarut Fosfat

AGROEKOTEKNOLOGI Vol 3, No 1 (2015)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (251.629 KB)

Abstract

This study aims to determine the growth and the production response of broccoli on application ofchicken manure and Phosphate Solubilizing fungi. This research was conducted in the field of BalaiPenyuluhan Pertanian (BPP) Kuta Gadung, subdistrict Berastagi Karo regency of North Sumatrawith altitude ± 1250 meters above sea level in January - April 2014 using a Randomized BlockDesign (RBD) factorial with 2 factors : chicken manure (0 kg , 3 kg , 6 kg ,9 kg per plot) and fungiphosphate solvent (10 ml , 20 ml , 30 ml per plant).The variable observations measured were plantheight , stem diameter , number of leaves , fresh weight per plant samples , selling fresh weight perplant sample and the number of chlorophylls. The results showed that the variable observationsresponse of broccoli plant height (cm) 6 weeks after plant ,broccoli stem diameter (mm) 6 weeksafter plant, number of leaves of broccoli plants (strands) 6 weeks after plant , fresh weight perbroccoli plant sample (g), selling fresh weight per broccoli plant sample (g) and the amount ofbroccoli chlorophylls was different significantly affected against chicken manure but nonsignificantly affect againts fungi phosphate solvent and both interactions.Keywords :Chicken Manure, Fungi Phosphate Solvent, Broccoli

Tanggap Pertumbuhan dan Produksi Bawang Merah (Allium ascalonicum L.)Varietas Lokal Samosir Terhadap Varietas Lokal Samosir Terhadap Beberapa Dosis Iradiasi Sinar Gamma

AGROEKOTEKNOLOGI Vol 3, No 1 (2015)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (314.95 KB)

Abstract

The aim of the research was to identify the effect on gamma ray irradiation on vegetative growthand production of local onion (Allium ascalonicum L.) Var. samosir. The research was conducted atJl. Pancing, Medan, North Sumatera, with a height of 25 m above sea level began from April up toJuly 2014. Bulbs of onion were exposed to various doses of gamma irradiation (0, 2, 4, 6, 8, 10, 12and 14 Gy) using Co60 source. Parameters observed were shoot length, leaves number, tillersnumber, harvesting age, bulb fresh weight, bulb dried weight, bulb diameter and average weight perbulb. The results showed significant difference between irradiated and unirradiated plants (control)growth and production. All parameter observed were lower than control. Irradiated plants 6 weeksafter planting at doses 6,8,10 12 Gy reduced shoot length 24.5%, 35.4%, 54.07%, 64.19%; leavesnumber 36.30%, 46.54%, 45.28%, 69.74%, respectively compared to control. There was no plantsustein alife at doses of 10, 12 and 14 in 7 weeks after planting. Irradiated plants at doses of 6 and 8Gy also reduced bulb fresh weight 56.40%, 70.85%, bulb dried weight 58.61%, 76.15%, bulbsdiameter 31,09% , 44.12%, average weight per tuber 59.6%, 78.45% respectively compared tocontrol.Keywords: onion, var. samosir, gamma ray irradiation

Respons Pertumbuhan dan Produksi Bawang Sabrang (Eleutherine americana Merr.) Terhadap Waktu dan Dosis Aplikasi Arang Sekam

AGROEKOTEKNOLOGI Vol 3, No 2 (2015)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (188.265 KB)

Abstract

Using traditional medicine growing rapidly lately. One of medicinal plant that have been developedis sabrang shallot (Eleutherine americana Merr.) This research aims for getting the best time anddose application of sabrang shallot. The researched was carried out at Field Trials of AgricultureFaculty North Sumatera University ( ± 25 m dpl) on May-October 2014, using a FactorialRandomized Block design with two factors are time aplication (2 weeks before planting, 1 weekbefore planting and when planting) and dose application of husk (1,5; 3; 4,5; 6 kg/plot or 10, 20, 30,40 ton/ha) by three replication. Data were analized with ANNOVA and continued with DuncanMultiple Range Test (DMRT). The parameters observed were age sprouts, plant height, number ofleaves, age flowering , number of tillers, number of bulbs per sample, wet bulbs weight per sample.The results of research shows that time and dose application of husk were significantly differ forplant height, number of leaves and number of sprouts.Key words : Time application, dose of husk , sabrang shallot.

Respons Pertumbuhan Bibit Bud Chips Tebu (Saccharum officinarum L.) terhadap Dosis dan Frekuensi Pemberian Pupuk N, P dan K pada Wadah Pembibitan yang Berbeda

AGROEKOTEKNOLOGI Vol 3, No 3 (2015)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (341.684 KB)

Abstract

 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