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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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Interaksi Trofik Jenis Serangga di atas Permukaan Tanah dan Permukaan Tanah Beberapa Pertanaman Varietas Jagung (Zea mays Linn.) Gery Lineker Purba; Marheini Marheini; Syahrial Oemry
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The aim of the reasearch was to know the tropic interaction of insect on the soil surface and above of soil surface for many varieties of corn (Zea mays Linn.) and index diversity value of insect of corn. The research was conducted in BBI of Tanjung Slamat and Agriculture Pest Laboratory in University of Sumatera Utara, Medan from November (2013) until March (2014). The insect trapped used yellow stiky trap and pitt fall trap. The result of the research showed that insects caught each consist of 9 ordo and 33 family. The highest relative density values in PRG NK603 (application of glyphosate) variety was 16.691% and the lowest was 0.681%. The highest relative density values in PRG NK603 variety was 16.363% and the lowest was 0.578%. The highest relative density values in C7 variety was 15.499 % and the lowest was 0.577 %. The highest relative density values in DK979 variety was 15.073 % and the lowest was 0.450 %. Shanon-Weiner (H’) Index diversity value of insect in PRG NK603 (application of glyphosate) variety was 2.950309 (standart), in PRG NK603 was 3.006432 (stable), in C7 variety was 3.051692 (stable), and in DK979 variety was 3.082916 (stable).Keywords : interaction, insects, corn, trap

Uji Daya Hidup Rayap Tanah (Coptotermes curvignathus Holmgren) (Isoptera : Rhinotermitidae) dalam Berbagai Media Kayu di Laboratorium Aditia Exaudi tampubolon; Syahrial Oemry; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

This research aims to determine the viability of subterranean termites (Coptotermes curvignathus Holmgren) in some media wood in laboratory. The study was conducted at Plant Pest Laboratory, Agroecotechnology Program Study, Faculty of Agriculture, University of Sumatera Utara, Medan from March to May 2014. It was done by using Completely Randomized Design (CRD) non factorial with ten treatments and three replications: control, rubber wood, jackfruit wood, mango wood, guava wood, tead, duku wood, palm wood, mahogany and guava wood. The results showed that the highest mortality in mahogany wood 8.04%. The lowest residue of wood was in mahogany 0.84 g.Keywords: Coptotermes curvignathus, mortality, wood

Aplikasi Pupuk KCl dan Pupuk Kandang Ayam Terhadap Ketersediaan dan Serapan Kalium Serta PertumbuhanTanaman Jagung (Zea mays L.) Pada Tanah Inseptisol Kwala Bekala Andri Martilova Sebayang; MMB Damanik; Kemala Sari Lubis
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The study aims to determine the effect of KCl fertilizer and hen house fertilizer to potassium avaibility and absorption also the growth of maize crop (Zea mays L.) at Inceptisol soil of Kwala Bekala. This study is conducted at home gauze and also in Chemical Laboratory and Fertility of soil, Faculty of Agriculture, University of North Sumatera. Study is compiled in Random Design of Factorial Group consisting of 2 factors with restating. First factor of urea which consist of 4 dose fertilizer: 1.K0 (0), 2.K1 (0,125), 3.K2 (0,25), 4. K3(0.375) and both factor of goat house fertilizer: 1.A0 (0), 2.A1 (25), 3.A2 (50), 4. A3 (75).Result of study show application of KCl fertilizer have an effect on reality to improve the crop herght,dry weight of crop root and dry weight of crop coronet. Application of hen house fertilizer don’t have an effect in reality to improve soil pH, soil C-Organic, soil K-Total, absorbtion of K crop, height of crop, weight dry of KCl fertilizer and hen house fertilizer don’t have an effect in reality which do well by parameters.The usage of hen house fertilizerat dose 10 ton/ha instead of KCl fertilizer in maintaining soil potassium availability.Keywords: KCl fertilizer, hen house fertilizer

Pengaruh Beberapa Jenis Termitisida dalam Mengendalikan Rayap (Captotermes curvignathus Holmgren) di Laboratorium Ary Hutama S; Yuswani Pangestiningsih; Lisnawita Lisnawita
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The objective of this research was to get an effective termiticides to control termites (C. curvignathus) in the laboratory. The research was conducted at Pest Laboratory, Agricultural Faculty, University of Sumatera Utara, Medan, from April until May 2014. The method used Randomized Complete Design Nonfactorial with seven treatments. The tratments were (control, cassava bark 25g/L water, cassava bark 50g/L water, cassava bark 75g/L water, cassava bark 100g/L water, kerosene and termiticide (active ingredient imidakloprid) and three replications. The results showed that kerosene was more effective to control termite that the others with mortality of 95% followed by imidacloprid termitisida (85%), cassava bark 100g / L (76.67%), whereas cassava bark 75g / L, 50 g / L, 25g / L weren’t effective to control termite with percentage of mortality were 65, 50, 46.67% respectively. Termite's death marked by the existence of body color changed from pale white to blackish brown color and stiff body shape then into wrinkles.Keywords : termiticide, Captotermes curvignathus, mortality

Pertumbuhan Dan Produksi Dua Varietas Kedelai Pada Cekaman Kekeringan Josua Simanjuntak; Chairani Hanum; Diana Sofia Hanafiah
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

These research conducted in North Sumatera university agricultural faculty in January to April 2014, using factorial randomized block design with two factors. The first factor is the soybean variety (Anjasmoro and Wilis) and the second factor is treatment drought stress (optimum field capacity, and drought stress treatment beginning flowering plant for 14 days).The results of these research showed that drough stress decrease growth and production parameter were leaf area (25,40%), root volume (44,87%), shoot dry weight (38,01%), and dry weight of 100 seeds (23,32%).Keywords :growth, Anjasmoro, Wilis, drought stress.

Pengujian Kompos Tithonia (Tithonia diversifolia) Pada Dua Varietas Sorgum (Sorghum bicolor (L.) Moench) Di Desa Siopat Sosor Kabupaten Samosir Yan Pieter; T. Irmansyah; Lisa Mawarni
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The aim of this research was to know growth response and production of some sorghum varieties to the addition of tithonia compost. The research was held from July - November 2014, used randomized block design with three factors addition of tithonia compost (0, 10, and 20 ton/ha) and two varieties (Kawali and Numbu). Parameters measured were plant height,the number of leaves , flowering time, weight of panicle seed per sample, weight of panicle seed per plot, yield per sample, yield per plot, and 1000 grains weight. The result showed that compost doesn’t affected significantly on all of parameters. Varieties affected significantly on plant height, the number of leaves, flowering time, yield per sample, yield per plot, and 1000 grains weight. There were not any interaction between compost and variety on all parameters. The best result was found in the combination of 10 kg tithonia compost and numbu variety.Keywords: , tithonia, variety, compost, sorghum.

Pengaruh Waktu dan Konsentrasi Paclobutrazol Terhadap Pertumbuhan Bunga Matahari (Hellianthus annuus L.) Egith Marshel; Mbue Kata Bangun; Lollie Agustina P Putri
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The research aimed to know the influence by the time of application and concentration of paclobutrazol to growth of Sunflower. The research was carried out in the gauze house, Agricultural Faculty of North Sumatera University from September 2013 to January 2014. This research used Split Plot Design with two factors. Main plot was time of application of paclobutrazol consist of three levels: 3 weeks after planting (WAP);4 WAP; 5 WAP. Sub plot was Paclobutrazol concentration consist of four levels are 0 ppm; 50 ppm; 100 ppm; 150 ppm. The parameters in this research were plant height, number of leaf, stem diameter and root length.The results showed that time of application of paclobutrazol has no effect significantly yet to all parameters. Paclobutrazol concentration give effect significantly to plant height and stem diameter on 6 WAP until 11 WAP. While interaction between time of application and concentration of paclobutrazol have no effect significantly yet to all parameters.Keywords: paclobutrazol, sunflower, time of application

Pengaruh Pemberian Fosfat Alam dan Bahan Organik pada Tanah Sulfat Masam Potensial Terhadap P-Tersedia Tanah dan Produksi Padi (Oryza sativa L.) M. Alfaddli Purba; Fauzi Fauzi; Kemala Sari
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

This research was conducted to study the effect of phosphate fertilizer and organic matter in a potential acid sulphate to P-soil available and production of rica (Oryza sativa L.) at Karang Anyar Village, Secanggang Districk. This research was designed by factorial randomized design with 2 factor and 3 replication . Sample soils were taken with 3 replice randomly at 0-20 cm depth. The first factor is dose phosphate fertilizer are control (P0), 0.64 g (P1), 1.28 g (P2), 1.92 g (P3) and dose of organic matter are control (P0), blotong 40 g (B1), manure 40 g (P2), blotong and manure mixed (P3). The results of this study showed that of natural phosphate in acid sulphate soils can increase the P-available soil at a dose of 1.28 g / 8 kg dose equivalent 1 ton/ha , the highest weight of 1000 grains at a dose of 1.92 g / 8 kg dose equivalent 1.5 ton/ha and the lowest percentage of grain at a dose of 1.92 g / 8 kg . Giving filter cake showed the highest P-available soil. Organic matter showed the highest 1000 grain weight in a mixture of filter cake and manure at a dose of 10 tons / ha. The percentage of low grain in manure 10 tons / ha. Interaction between phosphate at a dose of 1.28 g / 8 kg dose equivalent 1 ton/ha with a mixture of manure and filter cake, showed the highest P-available soil. Interaction between phosphate at a dose of 1.92 g / 8 kg dose equivalent 1.5 ton/ha with a mixture of filter cake and manure showed the lowest percentage of empty grains. Keywords : Phosphate fertilizer, Organic matter, Interaction, P-available and Production.

Laju Pertumbuhan Tanaman dan Produksi Dua varietas Kacang Hijau (Phaseolus radiatus L.) Dengan Pemeberian Pupuk Guano Desy Lavria; lisa Mawarni; Asil Barus
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The aim of this research was aplication guano on mung bean which hope to can increase the growth and production. This research was conducted at experimental field of Agriculture Faculty USU in Juli-September 2014 using factorial randomized block design with two factor, i.e. types of varieties (betet and walet) and guano (none; 200; 400 and 600 kg/ha). Parameter observed were relative growth rate and dry weight of seeds per sample. The result showed that varieties and guano application significantly affect the parameters of relative growth rate in the 10-21 day after planted (DAP). The interaction of two factor significantly affect on parameters dry weight of seeds per sample. However application of guano on mung bean no significant effect the parameters crop growth rate, days to flowering, days to harvesting, number of seed per sample, weight of 1000 seed and seed production per plot.Keywords : mung bean, varieties, guano

Respons Pertumbuhan Dan Produksi Bawang Merah (Allium ascalonicum L.) terhadap Pemberian Abu Vulkanik Gunung Sinabung dan Arang Sekam Padi Esther Tarigan; Yaya Hasanah; Mariati Mariati
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

Abu vulkanik yang mengandung hara penyubur tanah untuk pertanian sebenarnya baru bisa dimanfaatkan sekitar 10 tahun setelah peristiwa meletusnya gunung, namun teknologi percepatan pelapukan abu vulkanik dapat dilakukan dengan mencampur bahan organik. Salah satu bahan organik yang mampu untuk melepaskan hara yang terikat dari abu vulkanik yaitu arang sekam padi. Penelitian ini bertujuan untuk mengidentifikasi respons pertumbuhan dan produksi tanaman bawang merah (Allium ascalonicum L.) terhadap pemberian abu vulkanik Gunung Sinabung dan arang sekam padi. Penelitian dilaksanakan di lahan percobaan Fakultas Pertanian USU mulai bulan Mei ˗ Agustus 2014, menggunakan rancangan acak kelompok faktorial dengan dua faktor yaitu pemberian abu vulkanik (0, 5, 10, 15 ton/ha) dan arang sekam padi (0, 10, 20 ton/ha). Peubah yang diamati adalah jumlah anakan, bobot basah per sampel, bobot basah per plot, bobot kering per sampel, dan bobot kering per plot. Hasil penelitian menunjukkan bahwa pemberian arang sekam padi belum kelihatan mempercepat pelapukan abu vulkanik. Pemberian abu vulkanik dan arang sekam padi berpengaruh tidak nyata terhadap semua peubah amatan, tetapi interaksi keduanya berpengaruh nyata terhadap jumlah anakan pada 3 MST. Kombinasi perlakuan tanpa abu vulkanik dan arang sekam padi 10 ton/ha menghasilkan jumlah anakan per rumpun terbanyak.Kata kunci : abu vulkanik, arang sekam padi, bawang merah

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