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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 30 Documents

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Search results for , issue "Vol 6, No 2, April (2018)" : 30 Documents clear

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

Phsyiologys Response Two Genotypes of Soybean on Giving α- Tocopherol in Saline Lands putri tya sumantri; Nini Rahmawati; Mariati Mariati
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

The aim of the research to find out influence of α-tocopherol concentration on physiological of two soybean genotypes. The research was conducted at Desa Paluh Merbau, Percut Sei Tuan, Deli Serdang ± 1.5 m above sea level. The leaf analysis conducted at Tissue Culture Laboratory of Faculty of Agriculture, University of Sumatera Utara from May to July 2017. The design of the reset was range by Randomized Block Design with two factors. The first factor was the soybean genotype ie; Grobogan x Anjasmoro and GroboganI x Grobogan and the second was the concentration of α - tocopherol ie; 0, 250, 500 and 750 ppm. The result of research showed that soybean genotypes, the concentration of a-tocopherol and combination between soybean genotypes with concentration a-tocopherol has no significant effect on all parameters. Nevertheless it appeared that soybean genotypes (GroboganI x Grobogan) produced sod and pod higher than other treatments. The concentration of a-tocopherol 500 ppm produced H2O2, which more less than other treatments. The combination of genotypes (GroboganI x Grobogan) with concentration a-tocopherol 500 ppm produced SOD was higher than other treatments . Keywords :α - tocopherol, saline, soybean genotype

The Influence Of Organic Matter Of Kirinyuh (Eupathorium Odoratum) and That Of Organic Matter Of Paitan (Tithonia Diversifolia) On Some Soil Chemical Properties and Maize Yield On Ultisols Andreas Napitupulu; Posma Marbun; Supriadi Supriadi
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

The study was performed in order to investigate the influence of organic matter of kirinyuh (Eupathorium odoratum) and that of organic matter of paitan (Tithonia diversifolia) on some soil chemical properties and maize yield on Ultisols of Village Huta Ginjang. The experiment was in a non-factorial randomized complete block design. The treatments included control, inorganic NPK 100 %, fresh bitter bush 10 t/ha, fresh wild sunflower 10 t/ha, decayed bitter bush 10 ton/ha, decayed wild sunflower 10 ton/ha, fresh bitter bush 10 ton/ha + 50 % NPK, fresh wild sunflower 10 ton/ha + 50 % NPK, decayed bitter bush 10 ton/ha + 50 % NPK, and decayed wild sunflower 10 ton/ha + 50 % NPK. The treatments was replicated three times. The results showed that the applications of fresh bitter bush (Euphatorium odoratum), decayed bitter bush, fresh bitter bush + 50 % NPK and fresh wild sunflower (Tithonia diversifolia), decayed wild sunflower, fresh wild sunflower + 50 % NPK significantly increased soil pH, N-total of soil, exchangeable K of soil, fresh fruit weight, and the 1,000 maize seed weight. However, the application of decayed wild sunflower combined with NPK was the most appropriate one since it generated the extraordinary value on parameters: soil pH, exchangeable K, fresh fruit weight and the 1,000 maize seed weight with their values in turn: 5,41; 2,53 me/100g; 357,33 g/plot dan 303,33 g/plot. Keywords :kirinyuh, maize production, organic matter, tithonia, Ultisol

Studi Karakteristik Jagung Introduksi Dan Beberapa Varietas Jagung Lokal Wika Winani Syahputri Syahputri; Hot Setiado; Khairunnisa Lubis
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

The research was aimed to know the characteristics of vegetative and generative of introduction and some local maize varieties. The research was carried out on the land of the Centre Seed Service of Cash Crops, Departmentof Agriculture, Medan Sunggal, Deli Serdang district, from July 2016 to October 2016. The randomized block design was used with three varieties of maize (Black Aztec, Bisi2, Bonanza). Variables observed were: the plant height, the time of flowering, the time of female flowers bloomed, the time of harvested, the cob length, the number of lines per cob, the production per sample plant, the production per plot. The results showed that the three varieties of maize tested have varying diversity to the plant height, the time of male flower bloomed, the time of harveste, the cob length, the number of line per cob, the production per sample, the production per plot. The Black Aztec showed the lowest production (1005.56 grams per plot) mean while the Bonanza showed the highest production (2338.44 grams). The highest heritability and the broad of diversity coefficient were obtained in the time of male flower bloomed, the time of female flower bloomed, the time of harvested, the number of lines per cob.Key words: introduction, maize, varieties

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