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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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Germination seed response of Eleusine indica L. Gaertn to depth and buried time Astria Sari Munthe; Edison Purba Purba; Ratna Rosanti Lahay
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

A population of Eleusine indica L. Gaertn multiple resistant biotype securred in an oil palm field in North Sumatra. Field experiment was carried out to determinate the effect of time of period and depth seed buried in the soil on germination, effect of seed position buried in the soil on their emergence and number of seed bank found in various depth of soil. The study was conducted at Agricultural Faculty, University of Sumatera Utara. This research used randomized block design with 3 unit and 4 replication, first unit was germination response of seed weed E. indica to dept buried time with 2 factors. The first factor was dept with 5 treatment i.e. 0, 5, 10, 15, and 20 cm. The second was buried time with 6 treatments i.e. 2, 4, 6, 8, 10, and 12 weeks. Second unit was germination seed response of E. indica to various depth with 5 treatment i.e. 0, 5, 10, 15, and 20 cm. Third unit was seed bank E. indica with 4 treatment i.e. 0-5, 5-10, 10-15 and 15-20 cm. The results showed that the buried depth does not treatment affect the germination, but on buried time treatment affects on the germination. Seed germination buried for 12 weeks, number of seeds germination is higher than along 2, 4, 6, 8, 10 weeks. The depth of buried seeds (planting) effect on number of sprouts that appear on the surface of the soil. The highest number appears there are at 0 cm below the soil surface followed by 5 cm. The highest number of seed bank in the field are at a depth of 0-5 cm soil followed by a 10-15, 5-10, 15-20 cm. Keywords : Eleusine indica, buried time, depth

Distribution Of Multipple Herbicide Resistant Eleusine indica L. Gaertn. An Oil Palm Estate In North Sumatera ahmad bayu syahputra; Edison Purba Purba; Yaya Hasanah Hasanah
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v4i4.13574

Goosegrass (Eleusine indica) in a block of oil palm Estate at Serdang Bedagai, North Sumatera had been controlled using glyphosate and paraquat for more than 26 years continuously. Recently, it had been reported that the two herbicides failed to control the population. The estate consists of 4000 Ha or 437 blocks which had slightly different history in weed management. The objective of this study was to determine the distribution Eleusine indica Resistant to glyphosate and paraquat in the oil palm estate. Seed of E. indica were collected from each block and tested for resistant to glyphosate and paraquat at rate 480 g.a.i / ha and 300 g.a.i/ha consecutinely. A long with the seeds from the estate, seeds of E.indica susceptible to glyphosate and paraquat which had been confirmed were also germinated for a comparison. Results showed that 58 populations from the Adolina estate. 57 populations resistant of glyphosate and 1 population moderate resistantce of glyphosate. And 55 populations resistantce to paraquat and 3 populations moderate resistantce to paraquat.Keywords: Eleusine indica, glyphosate, paraquat, resistance

Preferences Test of Brown Lady Bug Riptortus linearis Fabr. (Hemiptera : Alydidae) on Soybeans (Glycine max L.), Greenbeans (Vigna radiata L.) and Orok-orok (Crotolaria pallida Aiton.) in Screenhouse ricky arbiansyah; Marheni Sembiring; Fatimah Zahara
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

The objective of the research was to know the preferences food of brown lady bug (R. linearis) on the pod of soybeans, greenbeans and orok-orok in Screenhouse. This research was conducted in Pest Laboratory and Screenhouse of the Agriculture Faculty, University of Sumatera Utara (±25 m asl) from March until August 2015. This research was using non-factorial Randomized Block Design with 3 treatments, which are soybeans, greenbeans and orok-orok with 9 replications. The result of this research showed that the pest R.linearis higher attacks on soybeans than greanbeans and orok-orok. The highest result in imago population of R. linearis was showed on soybeans (7.00), then on greenbeans (3.78), and orok-orok (1.22). The highest result in attacked pod percentage of R. linearis was showed on soybeans (81.88%), greenbeans (57.24%), and orok-orok (20.76%).

Growth Response of Deli tobacco by giving Mount Sinabung volcanic ash and dose of compost Daniel Sitorus; Jonis Ginting; Toga Simanungkalit
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v4i4.13959

The purpose of the study was to determine the effect of Mount Sinabung volcanic ash and compost on the growth of Deli tobacco. The research was conducted at Balai Penelitian Tembakau Deli (BPTD) Sampali, Percut Sei Tuan District Deli Serdang Regency North Sumatera with the height of + 15 metres above sea level, began from July until September 2014. The research design was a randomized block design with two factors, the first factor was Mount Sinabung volcano ash (0 g, 500 g, 1000 g) and the second factor was dose of compost (0 g, 250 g, 500 g, 750 g). The parameters observed were plant height, stem diameter, number of leaf, sand leaf thickness, feet leaf I thickness, leaf area, root length at 18 up to 50 days after transplanting(DAT) and dry weight of plant. The result showed that volcanic ash and dose of compost and also both of interaction were not show any significant effect on all parameters.

Aplication Growth Regulator for Soybean to Increase Growth and Nutrient Uptake in Ultisols Kartika Sry Ningsih; Mukhlis Muhklis; Jamilah Jamilah
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v4i4.14031

Green house study to increase growth and nutrient uptake of soybean with giving growth regulator Benzylaminopurine (BAP) in Ultisols. Research using randomized block non factorial design with treatments: control, liming with a dose of 1,5 x Aldd (L), and 4 levels of concentration growth regulator BAP that is: 0,4 ppm (B1), 0,8 ppm (B2), 1,2 ppm (B3), dan 1,6 ppm (B4), with 4 replications. Parameter that measured is pH, root volume, root length, root dry weight, shoot dry weight, N, P, and K uptake in laboratory. Result of this research showed that growth regulator BAP are potential to replace lime in resolving acid soil. Growth regulator BAP can increase root volume, root length, root dry weight, shoot dry weight, N, P, and K uptake better than lime. Best concentration of BAP based on this research is 0,8 ppm (B2). Keywords: BAP, Growth Regulator, Lime, Ultisols.

Effect of Ascorbic Acid to Recovery of Partial Tapping Panel Dryness (TPD) of Rubber Plant In The clones of PB 260 and IRR of 42 Nurhadi Satrio; Rosmayati Rosmayati; E. Harso Kardhinata; Radite Tistama; Ade Fipriani
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v4i4.14040

Effect of Ascorbic Acid to Recovery of Partial Tapping Panel Dryness (TPD) of Rubber Plant In The clones of PB 260 andIRR of 42,This aim of the research is to determine the effect of Ascorbic Acid to Recovery of Partial Tapping Panel Dryness (TPD) of clones PB 260 and IRR 42 rabber plant. This research was conducted at the research Estate and Physiological Laboratory of Balai Penelitian Sungei Putih, Pusat Penelitian Karet, Galang, Deli Serdang, Sumatra Utara, from May 2015 - October 2015, The research was designed by split plot with two factors. The main plot was clonesrubber plant (PB 260 and IRR 42), the subplot was treatments ascorbic acid(0 ppm, 150 ppm, 300 ppm, 450 ppm).Parameters measured were the levels of sucrose, inorganic phosphate, thiol, superoksidase dismutase (SOD), latex productivity and stoppage index.The results showed that clones PB 260 and IRR 42 rubber live significant different on production of latex. Application of Ascorbic acid him no significantly different on the levels of thiol, level of sukrosa,level of inorganic phosphate. The Interaction of the two treatment is significantly different with latex productivity.

Characteristic of Soil Chemistry Under A Few Kind of Tree in Sub Watershed Petani of Deli Serdang District yudiansyah pane
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v4i4.14060

This research to know about soil chemical characteristic under some vegetation on the sub Watershed of Petani in Buluh Awar Village Sibolangit Sub Dictricts and Deli Serdang Districts have been done on march to october 2015. The soil samples were analyzed at Laboratory of Soil Research, Bogor and Socfindo Laboratory, Medan, North Sumatera. This research used descriptive method with purposive sampling method. The data was analyzed by T test of 5% level. The results showed that the parameters of C-organic , total N, P-available, K-exchangeable, CEC have changes decrease soil chemical properties under the Sugar palm vegetation, durian and rubber are significant to the soil under forest, the highest decrease in chemical properties located on land under rubber with the average value of soil organic C 1.10% and the average value of exchange amounted to 0.166 K- cmol / kg. And on the Vegetation durian have the lowest decrease changes. Keywords: Durian, Forest, Rubber, Soil chemistry, Sugar palm,

Respons growth and production of onion (Allium ascalonicum L.) on dose of thitonia’s liquid organic fertilizer (Tithonia diversifolia (Hemsl.) Gray) and interval of application time riri azyyati
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

The objective of the research is to found dose of tithonia and interval of application time to increased growth and production of sallot. This research was conducted in Tanjung Anom, Medan Sunggal with altitude ± 25 meters above sea surface began from December to Februari 2016 used factorial randomized block design with two factors. The first factor was dose of thitonia’s liquid organic fertilizer (600, 900, dan 1200 ml/plant) and the second factor was interval of application time (4, 6, and 8 day to one). The result of this research showed that dose of thitonia’s liquid organic fertilize were significantly effect to number of leaves per clump parameter on 1 weeks after planting. Interval of application time were significantly effect to plant height on 4 weeks after planting, diameter tubers per sample, and sell dry weight per plot. Generally, the best treatment of the research was with dose of tithonia 1200 ml/plant and interval of 4 days for once application. The interaction of two factor not significantly affect on all parameters observed.Keywords : shallot, tithonia, dosage, interval of time

Growth Response and Production Kind of Sweet Potato Varieties (Ipomoea batatas (L.) Lam) by giving Rice Straw Compost ANDI SYAHPUTRA; Nini Rahmawati; Hot Setiado
Jurnal Agroekoteknologi Vol 5, No 1 (2017)
Publisher : Universitas Sumatera Utara

The research was carried out at public land Desa Namo Gajah, Kecamatan Medan Tuntungan(±25 m dpl) on April to November 2015. The research used factorial Randomized Block Design (RBD) with two factors and three replications.The first factor was sweet potato varietieswith 3 kinds (Antin-1; Beta-1; and Sari)and the second factorwas rice straw compost with 4 levels(0; 5; 10; and 15 ton/ha). Data were analized with Analysis of Variance and continued with Duncan’s Multiple Range Test (DMRT). The variables observed weight biomass of plant, tuber weight per plot, and harvest index. The result of research showed that the best interaction of sweet potato varieties and rice straw compost was combination of Sari and rice straw compost 2 kg on weight biomass, tuber weight per plot, and harvest index.

Pathogenicity of Some Entomophatogen’s Fungus (Lecanicillium lecanii, Metarhizium anisopliae, and Beauveria bassiana) to Aphis glycines on Soybean riri widariyanto; Mukhtar Iskandar Pinem; Fatimah Zahara
Jurnal Agroekoteknologi Vol 5, No 1 (2017)
Publisher : Universitas Sumatera Utara

Soybean aphids (A. glycines) are the important pests and major vector virus SMV(Soybean Mosaic Virus) on soybeans. Control techniques which performed by the used of insectisides is not effective and leaves residue on the environment. Entomophatogen’s fungus is a safe alternative control for the environment. This research isaimed to determine the effectiveness of entomopatogen’s fungus (L. lecanii, M. anisopliae, and B. bassiana) to A. glycines on soybean in the field and carried out at experimental field of Faculty of Agriculture of University of Sumatera Utara, from December 2015 until Februari 2016. It used non factorial randomized block design by treatment : Control (Fourth instar of A. glycines without treatment entomopathogen), P1 (Second instar of A. glycines + L. lecanii), P2 (Second instar of A. glycines + B. bassiana), P3 (Second instar of A. glycines + M. anisopliae), P4 (Fourth instar ofA. glycines + L. lecanii), P5 (Fourth instar of A. glycines +B. bassiana), P6 (Fourt instar of A. glycines + M. anisopliae).The results showed thatL. lecanii and M. anisopliaesignificantly effective to reduce A. glycines population with high mortality and fast death time. The highest mortality (90%) is P4 treatment whereas the lowest mortality (37,5%) at P5 treatment. The fastest death time (5 day) is P6 treatment whereasthe longest death time(6,4 day) at P5treatment.

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