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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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The effectivity of Trichoderma sp and Gliocladium sp. to control the Pokahbung disease (Fusarium moniliforme) on sugarcane (Saccharum officinarum) puti ristha; Hasanuddin Hasanuddin; fatimah zahara
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Pokahbung was one of some problems in Sugarcane cultivation. This experiment was aimed to test antagonist agent (Trichoderma sp and Gliocladium sp. ) to control Fusarium moniliforme. This study was conducted at screen house,at Agriculture Faculty, Universitas Sumatera Utara, Medan from March to October 2016th. It was done by using Completely Randomized Design (CRD) factorial with two factors and three replications. First factor was using antagonist agent (Trichoderma sp, Gliocladium sp., and combination of Trichoderma sp. and Gliocladium sp.) and the second factor was the concentration of antagonist agent 106 , 105, 104. The result showed: the best treatment was combination of Trichoderma sp. and Gliocladium sp. and with concentration 105and 106. Keywords: sugarcane, Fusarium moniliforme, Trichoderma sp., Gliocladium sp..

Evaluation of Rat's Attack (Rattus argentiventer Robb & Kloss) After Release of Owl (Tyto alba) in Deli Serdang Ema Rosalina Sipayung; Suzanna Fitriany Sitepu; Fatimah Zahara
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Rat is the important rice pests. Damageon rice crops caused by rat's attack in Indonesia reached a loss of 15-20% every year. This research aims to find out the rat's attack after release of owls. This research was conducted in Desa Sidodadi Ramunia and Desa Baru Deli Serdang with the distance about 22 km. This research was conducted from May until December 2016.This research used a survey method. Determination of research areas with purposive sampling method.Determination sample area using diagonal sampling method.Analyzed using Spearman's rank. The results show that the active rat's nest in Desa Baru is more than Sidodadi Ramunia, it was on age 40 days after planting (hst) in Desa baru there are 18 active nest while in Desa Sidodadi Ramunia none active rat's nest. The highest percentage of attacks was found in Desa Baru with moderate category (27.5%) , and the lowest in Desa Sidodadi Ramunia (0%). Thehighest production was in Desa Sidodadi Ramunia (5.71 tons/ha)and the lowest production was inDesa Baru (3.11 tons/ha). Correlation result showed that the corelation value of the active rat's nest with the percentage of rat's attackis 0.917, correlation value of amountowl with active rat's nest is - 0.928, correlation value amount of owl with the percentage of rat's attack - 0.866 and correlation value offarmer's perception to controling rat's attack with crop production is 0.810.Keywords: Rattus argentiventer, rat's nest,Tyto alba

Impact ofSystemic Insecticide Applicationon populationsElaeidobius kamerunicus Faust(Coleoptera: Curculionidae) on Oil Palm Plantation yeni rawati harianja; Suzanna Fitriany Sitepu; Marheni sembiring
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Oil palm is one of the commodity crop that has an important role in the economy in Indonesia. The main problems encountered are low productivity caused by the decline in population of oil palm pollinating insects Elaeidobius kamerunicusFaust.The purpose of this study was to examine the effect of systemic insecticides on E. kamerunicuspalm oil plantations in PTPN IV Marihat, Pematang Siantar. This research was conducted at Indonesian Oil Palm Research Institute (IOPRI), Pematang Siantar collaboration with PTPN IV. The methodwasfactorial randomized block designwith two factors and three replications. The first factor was type of active ingredient ( asefat dimehipo, klorantraniliprol), the second factor was dose insecticide (5 gr, 10 gr, 20 gr) and (7.5 ml, 5 ml, 10 ml). The parameters were observed consisting are total population of E.kamerunicusper hectare and sex ratio. The results showed thatthe total decrease in the population of E. kamerunicus 90 days after application was 18% of the inifialpopulation. Sex ratio of E. kamerunicus was1:1.5. Keywords :Acephate, Dimehypo, Elaeidobius kamerunicus, Klorantraniliprol, systemic insecticide

The Physical and Chemical Soil Properties of The Soil Suppresive to Existence of Ganoderma boninense on The Oil Palm”. fakhry puspika; mukhtar pinem
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Basal Stem rot disease caused by Ganoderma boninense in oil palm is an important disease because it can cause damage to 100% even the death of oil palm plantation. The spread of Ganoderma boninense is influenced by internal and external factors of the plant. Internal factors of the plant include plant health and resistance to pathogen infection. As for the external factor that is the environment around the growing area, especially the condition of the soil, in this case related to soil nutrient status. This study aims to compare the soil physical properties of soil texture, and soil chemical properties is pH-H2O, pH-KCl, C-organic content, Cation Exchange Capacity (CEC) Soil, Bases cations (K, Ca, Mg and Na) Soil, soil Nitrogen content,and P-content available on soil invested and soil suppressive against Ganoderma boninense attack. The research was conducted at Oil Palm Plantation PT. Marihat, Pematang Siantar with comparative method. Samples were taken by simple random sampling method (SRS). Soil samples were analyzed at PT. Socfin Indonesia. The results showed that nutrient elements did not affect the presence of G. boninense on suppressive soils but the percentage of sand in the soil affected the spread of G. Boninense. Keywords: Ganoderma boninense, Supresive Soil, Land of Invest, Palm oil

Effect of colchicines on the morphological differences and the number of chromosomes of Aglaonema hybrid var. Dud Unjamanee Siti Rachma Aulia Damanik; Hot Setiado; Diana Sofia Hanafiah
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

The aim of the research was to know the effect of the time of soaking and level concentration of colchicines on the morphological differences and the number of chromosomes of the Aglaonema plants. The research was conducted at the screenhouse and plant tissue culture laboratory of Faculty of Agriculture, University of Sumatera Utara, Medan, Indonesia from January 2017 to June 2017. The young Aglaonema plants were soaked in 2 ppm, 4 ppm, 6 ppm for 6 hours and 12 hours. The result showed that the time of soaking, concentrate of colchicines, and interaction of both did not significantly affect the parameter of percentage of living plants, plant height increase, number of leaves, and number of shoots. The Aglaonema plants treated with the level concentration of colchicine perfomed the differences in morfological character and the number of chromosomes than the control. The highest number of chromosomes found in the treatment 6 ppm colchicine for 12 hours soaking (37 pairs). Keywords : aglaonema, chromosomes, colchicine, morphological differences

Inventory and identification of kana (Canna spp.) in Deli Serdang and Serdang Bedagai regency maulida khairiza nawar; Emmy Harso Kardhinata; Eva Sartini Bayu
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Inventory and identification of kana (Canna spp.) in Deli Serdang and Serdang Bedagai regency. Supervised by Ir. E. Harso Kardhinata, M.Sc., and Ir. Eva Sartini Bayu, MP., The purpose of the research is to inventory and identify of kana (Canna sp.) in Deli Serdang and Serdang Bedagai regency. The research was conducted in Deli Serdang and Serdang Bedagai regency from February to March 2017, The research was dessigned by descriptive methode and the samples were collected based on accidental sampling technique. Morfological characteristic of kana were identified based on Tanaka (2001). The result showed that there were 11 genotip of kana are genotip genotip A, genotip B, genotip C, genotip D, genotip E, genotip F, genotip G, genotip H, genotip I, genotip J, gnotip K, based on identified by Tanaka (2001) is that genotip A as C. flaccid, genotip B as C. ‘King Humbert’, genotip C as C. edulis, genotip D as C. pedunculata, genotip E as C. cleopatra, genotip F as C. glauca, genotip G as C. jacobiniflora, genotip H as C. ‘Bengal Tiger’, genotip I as C. liliiflora, genotip J as C. discolour, genotip K as C. indica.. Some specieses of kana grow wild and have not been cultivated by community except C. indica and C. edulis. Keywords : identification, inventory, kana, morphological characteristics

Improvement of Inceptisol Soil Chemistry and soybean growth Due to Composting Enriched Egg Shell And Zeolite Irpan Ediar Pane; Tengku Sabrina; Alida Lubis
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Availability of nutrients in the soil are the main factors that determine the growth and crop production. This research aims to know the response of compost enriched eggshells and zeolite on soil inceptisol of some aspects inceptisol soil properties and soybean growth. The research was conducted in UPT Palawija Tanjung Selamat land and Soil Biology Laboratory Faculty of Agriculture, University of North Sumatra. This research using a randomized block design factorial. The first factor is compost enriched eggshell consists of without compost, 10 tons / ha compost, 20 tons / ha compost, 30 tons / ha compost and The second factor is zeolite consists of without zeolite, 3 tons / ha zeolite, 3 tons / ha zeolite enriched green manure. The results showed that the compost enriched eggshell can increase soil pH, soil Ca exchange and soil organic in a linear, zeolite application can increase plant nitrogen absorption, interaction between compost enriched eggshell with zeolite can increase soil Ca exchange. Keywords: Availability of nutrients, Compost Enriched Eggshells, Inceptisol, Zeolite

Growth of Pak Coy Varieties (Brassica rapa L. ssp. chinensis (L.)) with Applied NAA (Naphthalene-3-acetic Acid) on Floating Hydroponics Medium Ari Fradana Nst; Revandy Iskandar M. Damanik; Eva Sartini Bayu
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

The objective of the research was to know growth respons of Pak Coy varieties with applied NAA on floating hydroponics medium. This research was conducted at experimental fields on Compost Centre, Faculty of Agriculture, University of Sumatera Utara, from February-April 2017 with factor such as varieties (Green and Red) and applied NAA (0, 10, 20 ppm) using two way randomized design then analyzed using Duncan Multiple Range Test on 5%. The parameters observed were plants length, number of leaf, chlrorophyll values, stems diameters, roots length, fresh weight per sample,fresh weight per plot and fresh apical weight. The results showed that varieties was significantly different on number of leaf 3, 4, and 5 weeks after planted, chlrorophyll values on morning, noon and afternoon, stems diameters, fresh weight per sample,fresh weight per plot and fresh apical weight. Applied NAA on hydroponics medium was significantly different on all parameters. Keywords: hydroponics, naphthalene-3-acetic acid, pak coy, varieties

Application of Liquid Organic Fertilizer Human Urine Fermentation to Increase Growth of Corn Plants in Inceptisols Kwala Bekala Sefriansyah Putra; Mukhlis Mukhlis; Mohammad Madjid B Damanik
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Green house study to increase growth of corn plants with application human urine fermentation as liquid organic fertilizer in Inceptisols Kwala Bekala. Research using randomized block non factorial design with 5 levels of dosage treatmenthuman urine fermentation that is: 0 mL/pot (P0), 25 mL/pot (P1), 50 mL/pot (P2), 75 mL/pot (P3) and100 mL/pot (P4) with 5 replications. Parameter that measured are soil pH, organic C, N-total, P-available, K-exchangeable, plant height, root dry weight, shoot dry weight, N, P and K uptake in Laboratory. Result of this research showed that application human urine fermentation can improve soil pH, organic C, N-total, P-available, K-exchangaeble, plant Height, root and shoot dry weight, and uptake N, P, K growth of corn plants. Best human urine fermentation dose on this research is 75 mL/pot (P3). Keywords: Human urine fermentation, Inceptisols Kwala Bekala, Nutrient, Organic fertilizer.

The Effect of Seeds Number and Modified Jajar Legowo Planting System to The Growth and Yield for Rice (Oryza sativa L.) in Medan Tuntungan Stephanie Claudia Chrisdyana Tambunan; Posma Marbun; Erwin Masrul Harahap
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

The research was conducted at rice field in Medan Tuntungan which about ± 25 metres above sea level, begun from March until June 2017 using completly randomized design with two factors, i.e: the number of seeds (1,2,3) and plant population based on modified jajar legowo planting system (conventional planting system with population of 48 clumps per plot, jajar legowo planting system with population of 60 clumps per plot, jajar legowo planting system with population of 114 clumps per plot, jajar legowo planting system with population of 154 clumps per plot, jajar legowo planting system with population of 190 clumps per plot). The results showed that 1 seed of clumps with conventional planting system with population of 48 clumps per plot significantly influence the increase of rice production (Oryza sativa L.). The interaction between number of seeds dan plant population significantly increased growth but did not significantly increase rice production (Oryza sativa L.). Keywords : jajar legowo, number of seeds, rice

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