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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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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.

RESPONS PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS BAWANG MERAH(Allium ascalonicum L.) TERHADAP BERBAGAI SUMBER NITROGEN ORGANIK Sugiyarto Sugiyarto; Meiriani Meiriani; Jasmani Ginting
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

The research had been conducted at Tanjung Sari, Medan at ± 25 m asl from April until June 2012.The research using factorial randomized block design with 2 (two) treatment factors. The first factorwas using of three variety namely : V1: Bima Brebes; V2: Kuning; V3: Sembrani. The second factorwas addiction of fertilizer as organic nitrogen source with four levels P0: control ; P1: biomass ofsoya 2.357,67 kg/ha; P2: vermicompost 3.252,55 kg/ ha ; P3: palm oil fruit bunch 2.121,90 kg/ha;P4: chicken manure 3.350,37 kg/ha. The results showed that the Sembrani variety had given thebest results on some parameters of growth and production. The using of biomass of soya 2.357,67kg/ha resulted diameters and weight of tubers were compared with the other organic fertilizers andcontrol. The interaction between the both of treatment was effected significantly on parameters wetweight of tuber per plot, dry weight of tuber per plot, diameter of wet tuber per clump and diameterof dry tuber per clump.Key words : varieties, organic nitrogen, shallot

EFEK TEMPERATUR TERHADAPVIRULENSI JAMUR Colletotrichum gloeosporioidesPenz. Sacc.PENYEBAB PENYAKIT ANTRAKNOSA PADATANAMAN KAKAO(Theobroma cacao L.) Tatik Fadilah Hakim Harahap1; Lahmuddin Lubis; Hasanuddin Hasanuddin
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Temperature Effect TowardsVirulency ofColletotrichum gloeosporioides Penz. Sacc. FungalDisesase Caused of Anthracnose on Cocoa(Theobroma cacaoL.).This research aims to determindvirulency level, disease incident and temperature effect towards fungal morphology growth of C.gloeosporioides fungal disesase caused of anthracnose oncocoa (Theobroma cacao L.). The studywas conductedat Karang Anyar village, regency in Langkat with altitude±28masl, at Sambirejovillage, regency in Langkat with altitude±28masl, at Bekukul village, regency in Deli Serdang withaltitude±100 masl, at Sayum Sabah village, regency in Deli Serdang with altitude±200 masl and atthe Laboratory ofPlant Disease, Agroecotechnology Program Study, Faculty of AgricultureUniversity of Sumatera Utara, Medan from July to December 2012.The method of this research issurvey.Results showedthat highest attack percentage was founded in Sambirejo villagewhich reach100% and thelowest was founded in Sayum Sabah village which reach 95%, highest diseaseseverity was founded in Bekukul village which reach 92.0% and thelowest was founded in KarangAnyar village which reach 78.6% and showed no differences fungus morphology that extractedfrom four different location.Keywords: C. gloeosporioides,virulency, morphology, temperature, cocoa

RESPONS PERTUMBUHAN DAN PRODUKSI KEDELAI (Glycine max (L.) Merrill) YANG DIBERI FUNGI MIKORIZA ARBUSKULAR (FMA) PADA TANAH SALIN Teguh Hakiki Nasution; Rosmayati Rosmayati; Yusuf Husni
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Soybean crop productivity on saline land affected by the input that is given to the provisionof mycorrhizal plants. For which a research field trials have been conducted in the village ofTanjung Rejo District Percut Sei Tuan Deli Serdang regency (± 1.5 m asl.) In May-July 2012.Experimental was conducted using a factorial randomized block design that is mycorrhizalwith standard treatment (M0 = No provision of mycorrhizal and mycorrhizal granting M2 =10 g / plant), the treatment was repeated six times. The data were analyzed using variance(ANOVA) and continued with HSD.The analysis of data showed that administration ofmycorrhizae improve plant height at age 5 MST, the number of branches, number of podsand cropping, as well as accelerate the age of flowering plants.Key words: salinity, mycorrhizal

PENGARUH VARIETAS DAN BAHAN ORGANIK TERHADAP JUMLAH ANAKAN DAN PRODUKSI PADI SAWAH IP 400 FASE VEGETATIF MUSIM TANAM I Timbul Simbolon; Posma Marbun; Fauzi Fauzi
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

This research was aimed to determine whether composting organic materials and varieties of riceplants of different IP 400 can reduce the rate of air temperature in rice vegetative phase and also toknow which varieties or organic matter are likely to be better in reducing the rate of air temperatureand increase rice production IP 400. This research was conducted in paddy fields and DevelopmentResearch Institute, Village Market District Leaning Fence Merbau Deli Serdang (30 29 '51.33 "Nand 980 54' 19.87" E) with a height of 30 meters above sea level where conducted from February2012 to complete. This research used a randomized block design factorial with six combinations oftreatments and three replications thus obtained eighteen experimental unit. Treatment consists ofV1B0 (Inpari 1 + Without Organic Materials), V1B1 (Inpari 1 + straw compost 9 kg), V1B2 (Inpari 1+ Cow Manure 9 kg), V2B0 (Ciherang + Without Organic Materials), V2B1 (Ciherang + Compoststraw 9 kg), V2B2 (Ciherang + Cow manure 9 kg). The results of this research indicate varieties ofrice IP 400 and composted organic materials that have been able to suppress the air temperature andincrease rice production IP 400, but did not suppress emission rate at 35 days after planting.Keywords: IP 400, cow manure, straw compost, air temperature

KAJIAN TINGKAT BAHAYA EROSI DI BEBERAPA PENGGUNAAN LAHAN DI KAWASAN HILIR DAERAH ALIRAN SUNGAI (DAS) PADANG Tomy Ardiansyah; Kemala Sari Lubis; Hamidah Sari Hanum
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Study about erosion hazard level on some land uses was coducted at watershed of Padang. Thisresearch was implemented in the downstream Padang watershed of Tebing Tinggi region. theobjectiveof this research is to determine the tolerance erosion (T), actual erosion (A), and erosionhazard level at several land use in downstream areas DAS Padang. This research was conducted byusing survey method Sampling by cluster method at four (4) land uses consist of palm oil (twentyyears), rubber, cacao and cassava. Prediction of erosion by using USLE (Universal Soil LossEquation). The result showed that highest actual erosion at land rubber was 374.298 ton/ha/thn atundulating topography, lowest at cacao was 17.960 ton/ha/thn at flat topography, highest tolerancaerosion at cassava was 28.250 ton/ha/thn, lowest at rubber was 23.750 ton/ha/thn and level oferosion hazard highest at rubber was 15.760 ton/ha/thn at undulating topography included in thecriteria low, lowest at cacao was 0.718 ton/ha/thn at flat topography included in the criteria verylow.

RESPONS PERTUMBUHAN DAN PRODUKSI KACANG TANAH TERHADAP PEMBERIAN KOMPOS JERAMI PADI DAN FUNGI MIKORIZA ARBUSKULA Tua Bastari Prima Bangun; Nini Rahmawati; Meiriani Meiriani
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Growth Response and Yield of Peanut with Straw Compost and Mycorhiza Vesicular ArbuscularApplication. This research aims to study response in growth and yield of peanut for giving strawcompost and mycorhiza vesicular arbuscular. This research conducted on community land locatedat Pasar 1 Street, Tanjung Sari with altitude ± 25 meters above sea level in June until September2012 using Randomized Block Design (RBD) factorial with two factors , which are straw compostdoses (0, 750, 1500, 2250 g per plot) and mycorhiza vesicular arbuscular (0, 10 g micofer perplanting hole). The parameters observed were plant height, number of branches, weight of pods perplot and 100 seeds weight. The results showed that straw compost significantly affected plant height4-12 weeks after planting, and weight of pods per plot. Mycorhiza vesicular arbuscular andinteraction of them not significantly affected on all parameters observed.

PENGARUH PEMBERIAN KOMPOS KULIT DURIAN DAN KOMPOS KULIT KAKAO PADA ULTISOL TERHADAP BEBERAPA ASPEK KIMIA KESUBURAN TANAH Volmer Damanik; Lahuddin Musa; Posma Marbun
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Ultisol is a quite large of soil and have many constraints to be used as agricultural soil. Some of theconstraints are: Low level of the organic content, soil acidity, high level of Al saturation and lowCEC so that this land productivity is quite low. To increase the productivity can be done by increasethe availability of nutrient by adding organic compost i.e. Durian Shell compost and Cacao Shellcompost. The experiment was conducted in Completely Randomized Design methode with 3replications consistedof nine treatment. I.e by adding Durian’s Shell compost and Cacao’s Shellcompost consisting of ;1,5 g (Z1), 3,0 g (Z2), 4,5 g (Z3), 6,0 g (Z4)Durian’s Shell compost in every300 g Ultisol, and 1,5 g (C1), 3,0 g (C2), 4,5 g (C3), 6,0 (C4) Cacao’s Shell in every 300 g Ultisol,and Blanko treatment (Z0). The result shows that the addition of Durian’s Shell Compost andCacao’s Shell Compost give very real effect on Al-dd, and generally tend to increase the pH, CEC,Organic C, Total N of the soil and decrease the level of exchangeable Al.Keywords: ultisol, compost, aspects of soil fertility

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