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All Journal AGROEKOTEKNOLOGI PERTANIAN TROPIK

T. Irmansyah

Universitas Sumatera Utara

Author-ID : 2980643

Agriculture, Biological Sciences & Forestry

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Respons Pertumbuhan Bibit Kelapa Sawit (Elaeis Guineensis Jacq.) terhadap Pemberian Kompos Sampah Pasar dan Pupuk NPKMg (15:15:6:4) di Pre Nursery Martua Markus Tambunan; Toga Simanungkalit; T. Irmansyah
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The purpose of the study was to determine the growth response of oil palm seed on waste market compost and Npkmg (15:15:6:4) fertilize aplication in pre nursery. The research was conducted atthe experimental field Agricultural Faculty, Sumatera Utara University about ± 25 metres above sealevel from April to July 2014. The design use randomized block design with 2 factors treatment.The first factor was The waste market compost with 4 levels: 0 g/polybag (K);50 g/polybag (K1); 100 g/polybag (K2); 150 g/polybag (K) and the second factor was NPKMg (15:15:6:4)fertilizer with 4 levels: 0 g/polybag (P03); 2,5 g/polybag (P1); 5 g/polybag (P) and 7,5g/polybag(P32). The results showed that the waste market compost treatment has significantly effectto the plant height, total wide leaf, dry weight root and soil pH , however no significantly affectedfor, stem diameter, leaf number, length of the root, fresh weight of crown, dry weight of crown, andfresh weight of root. The NPKMg (15:15:6:4) fertilize treatment showed significant effect to stemdiameter, total wide leaf, fresh weight of crown and dry weight of crown however no significantlyaffected for plant height, leaf number, lenght of the root, fresh weight of root, dry weight of rootand soil pH. The interaction of both of treatmet showed significan for the plant height and totalwide leaf. Keywords: Oil palm, waste market compost, NPKMg (15:15:6:4) fertilizers. 0

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 Lama Penyimpanan dan Diameter Stum Mata Tidur terhadap Pertumbuhan Bibit Karet (Hevea brasiliensis Muell. Arg.) Mitra Kasih Maruhawa; Asil Barus; T. Irmansyah
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

The purpose of this research is to found out the influence of storage period and diameter stump on stump rubber growth. This research was conducted at experimental field of Agriculture Faculty, University of North Sumatera, Medan, in april until august 2015, using randomized block design with two factors, i.e storage period (0,5,10,15,20 days) and diameter of stump (1.6-2.0 cm, 2.1-2.5cm, 2.6-3.0 cm). Parameters observed were percentage of grow, time of break bud, height of bud, diameter of bud, amount of leaf, total leaf area, root length, root dried weight and shoot dried weight. The result showed that the storage period significantly affected on percentage of grow, diameter of bud, amount of leaf, total leaf area and root length. While the treatment diameter of stump significantly affected on percentage of grow and root length. The interaction of two factor significantly affected on percentage of grow and root length.Keywords : stump rubber, storage period, diameter of stump

Respons Pertumbuhan Bibit Setek Tanaman Buah Naga Merah (Hylocereus costaricencis (Web) Britton & Ross) Terhadap Pemberian Auksin Alami dengan Berbagai Tingkat Konsentrasi Muhammad Rivai Sitorus; T. Irmansyah; Ferry Ezra Sitepu
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

One way to increase the production of dragon fruit is the provide of quality seeds. Used of coconut water, cow urine, and goat urine which is contains the hormone auxin that could potentially increase the growth of seedlings. This research was conducted in Agriculture Faculty University of Sumatra Utara with a height ± 25 m above sea level, which is held in May until July 2015. The research used randomized block design with 2 factors, namely, the type comprised a natural auxin of coconut water, cow urine, goat urine and concentration consisting of 0,25,50,75 and 100% were repeated three times. continiued analyzed used analysis of variance followed by Duncan's Multiple Range Test (DMRT) at 5%. The result showed that the type of natural auxin has significantly effect against age emerged shoots and shoots height 30 DAP. The concentration of natural auxin significantly effect against emerged shoots, shoot height 30, 45 DAP, and dry weight of shoots. Interaction between types of natural auxin and concentration has significantly effect against age emerged shoots, and height shoots 30 DAP.Key word : type of natural auxin, concentration of natural auxin. cut dragon fruit

Respons Pertumbuhan dan Produksi Tanaman Selada (Lactuca sativa L.) Terhadap Pemberian Pupuk Organik Cair Urin Kambing Pada Beberapa Jarak Tanam Immanuel Hans Alexander Surbakti; Ratna Rosanti Lahay; T Irmansyah
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

This research was carried out on land the area residents,pasar 1 street No.89 Tanjung Sari, Medan at altitude of ± 25 asl from May 2015 through July 2015, using factorial randomized block design with two treatment factors, namely liquid organic fertilizer goat urine with treatments of 0, 200, 400, 600 cc/ L of water and Plant Spacing with treatment 20x20 cm, 25x20 cm and 30x20 cm. Parameters measured were plant height, number of leaves, fresh weight total per sample, selling fresh weight per sample, fresh weight of roots per sample, harvest index and shoot-root ratio.The results showed that the liquid organic fertilizer goat urine application had no significant effect on all parameters. Plant spacing significantly affected parameters plant height, number of leaves, fresh weight total per sample, selling fresh weight per sample, and fresh weight of roots per sample. Interaction of liquid organic fertilizer goat urine and spacing of treatment had no significant effect on all parameters of existing observations. Keywords: lettuce, liquid organic fertilizer goat urine, plant spacing

Respons Pertumbuhan dan Hasil Sorgum (Sorghum bicolor (L.) Moench) Terhadap Wika Simanjuntak; Edison Purba; T Irmansyah
Jurnal Agroekoteknologi Vol 4, No 3 (2016)
Publisher : Universitas Sumatera Utara

Tujuan penelitian ini untuk mengetahui respons pertumbuhan dan hasil sorgum terhadap jarak tanam dan waktu penyiangan gulma. Penelitian dilaksanakan pada bulan Desember 2014 hingga April 2015 di lahan percobaan Fakultas Pertanian Universitas Sumatera Utara Medan dengan ketinggian 25 meter di atas permukaan laut. Rancangan penelitian yang digunakan adalah Rancangan Petak Terpisah Faktorial. Faktor pertama adalah jarak tanam (70 cm x 30 cm, 70 cm x 20 cm, 70 cm x 10 cm) dan faktor kedua adalah waktu penyiangan gulma (tanpa penyiangan, disiangi 2 minggu setelah tanam, disiangi 4 minggu setelah tanam, disiangi 6 minggu setelah tanam, disiangi 8 minggu setelah tanam, bebas gulma). Hasil penelitian menunjukkan bahwa perlakuan jarak tanam meningkatkan tinggi tanaman, berat basah malai per sampel dan produksi biji per sampel sedangkan pada perlakuan waktu penyiangan gulma meningkatkan tinggi tanaman, jumlah daun umur, diameter batang, berat basah malai per sampel, berat basah malai per plot, produksi biji per sampel, produksi biji per plot, dan bobot 1000 biji. Kata kunci: Jarak Tanam, Waktu Penyiangan Gulma, Sorgum

Application of Empty Fruit Bunches of Oil Palm Compost and Phosphate Fertilizers in Sorghum Planting (Sorghum bicolor (L.) Moench) at Rubber Planting Strip Oktri Fadhilah Nasution; T Irmansyah; Eva Sartini Bayu
Jurnal Agroekoteknologi Vol 5, No 1 (2017)
Publisher : Universitas Sumatera Utara

The aim of the research was to know the effect of empty fruit bunches of oil palm (EFBOP) compost and phosphate fertilizers in sorghum planting (Sorghum bicolor (L.) Moench) at rubber planting strip. Research was conducted at Sei Putih Research Institute, Galang, Medan with altitude ± 80 meters above sea level from April until August 2015, using randomized block design with two factors : EFBOP compost (without EFBOP, 7.5kg/plot and 15 kg/plot) and phosphate fertilizers (without fertilizer, 37.5 g/plot, 75 g/plot and 112.5 g/plot).Observed paramaters were plant height, number of leaves, diameter of stem, days of flowering, panicle number per sample, panicle number per plot and weight of 1000 seeds. The results showed the treatment of EFBOP compost had a significant effect to the plant height at 6,7,8,9, and 10 weeks after planting and number of leaves at 5,6,7, and 8 weeks after planting, best result at application of EFBOP compost range between T1 - T2 (7.5 kg/plot – 15 kg/plot). Phosphate fertilizers had a significant effect to the weight of 1000 seeds ,the number of panicle per sample, number of panicle per plot , phosphate fertilizer having optimum point at 60.93 g/plot – 62 g/plot.

Growth and Production of Two Varieties Soybean (Glycine soja L.) Response on Applicating of Organic Liquid Fertilizer Chairum Vika; T Irmansyah; Jonatan Ginting
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

The objective of the research is know the response of growth and production of two varieties soybean on applicating of Organic Liquid Fertilizer. The research was conducted in UPT Balai Benih Induk (BBI) Palawija Tanjung Selamat, Kecamatan Medan Sunggal, Kabupaten Deli Serdang Medan, started from Juny until September 2016, used factorial randomized block design with 2 factors. The first factor is varieties (Cikuray, Detam-2) and the second factor is Applicating of Organic Liquid Fertilizer (Control, Rabbit’s urine, Cow’s urine, Goat’s urine ). The result of this reseach showed that varieties were significantly effect to plant height 2, 3 and 6 week after planting (WAP), root dry weight, the number of pods fullness per plant, the number of pods empty per plant, dry weight of 100 seeds, dry weight of seeds per plant, dry weight of seeds per plots. Application organic liquid fertilizer were not significantly effected all parameters. Interaction of varieties and application of Organic Liquid Fertilizer were not effected all parameters. Dry weight of seeds per plant and dry weight of seeds per plots highly at Cikuray (V1).The objective of the research is know the response of growth and production of two varieties soybean on applicating of Organic Liquid Fertilizer. The research was conducted in UPT Balai Benih Induk (BBI) Palawija Tanjung Selamat, Kecamatan Medan Sunggal, Kabupaten Deli Serdang Medan, started from Juny until September 2016, used factorial randomized block design with 2 factors. The first factor is varieties (Cikuray, Detam-2) and the second factor is Applicating of Organic Liquid Fertilizer (Control, Rabbit’s urine, Cow’s urine, Goat’s urine ). The result of this reseach showed that varieties were significantly effect to plant height 2, 3 and 6 week after planting (WAP), root dry weight, the number of pods fullness per plant, the number of pods empty per plant, dry weight of 100 seeds, dry weight of seeds per plant, dry weight of seeds per plots. Application organic liquid fertilizer were not significantly effected all parameters. Interaction of varieties and application of Organic Liquid Fertilizer were not effected all parameters. Dry weight of seeds per plant and dry weight of seeds per plots highly at Cikuray (V1).

Pertumbuhan dan Produksi Beberapa Varietas Tanaman Okra (Abelmoschus esculanthus L.) dengan Pemberian Kompos Eceng Gondok Febrianti Manullang; Rosita Sipayung; T. Irmansyah
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Penelitian ini bertujuan untuk mengetahui pertumbuhan dan produksi beberapa varietas tanaman okra dengan pemberian kompos eceng gondok. Penelitian ini dilaksanakan di lahan penelitian Fakultas Pertanian USU (± 25 m dpl) pada bulan April-Agustus 2017 menggunakan Rancangan Acak Kelompok (RAK) faktorial dengan tiga ulangan. Faktor pertama dosis kompos eceng gondok (0, 100 g, 200 g, dan 300 g/polibag) serta faktor kedua varietas tanaman okra (Garibar, Red burgundy, dan Zahira IPB). Parameter yang diamati adalah tinggi tanaman, jumlah daun, diameter batang, bobot kering tajuk, dan bobot kering akar, jumlah buah per tanaman, panjang buah, diameter buah, bobot buah segar per tanaman. Hasil penelitian ini menunjukkan bahwa perlakuan kompos eceng gondok berpengaruh nyata terhadap bobot kering akar, jumlah buah dan bobot segar buah per tanaman. Perlakuan varietas berpengaruh nyata terhadap diameter batang, jumlah buah per tanaman, diameter buah, dan bobot segar buah per tanaman. Interaksi pemberian kompos eceng gondok dan beberapa varietas berpengaruh nyata pada diameter batang.

Co-Authors Agustina br. br. Marpaung andre ansyah asil barus Chairani Hanum Chairum Vika Dewi Hiasinta Tarigan Edison Purba Edison Purba Eva Sartini Bayu Febrianti Manullang Febrina I Hutauruk Febriyanti Indah Siregar Ferry Ezra Sitepu Ferry Sitepu Haryati Haryati Immanuel Hans Alexander Surbakti Irsal. Irsal. Ismail Marzuki Jasmani Ginting Jonatan Ginting Jonis Ginting Jonis Ginting Jonis Ginting Junita P Napitupulu Leonard Septian Munthe1*, Leonard Septian Munthe1*, Leonard Septian Munthe1*, Lili Tri Anggraini Lisa Mawarni Maria Masela S. Sitanggang Martua Markus Tambunan Meiriani Meiriani Mitra Kasih Maruhawa Muhammad Rivai Sitorus Oktri Fadhilah Nasution Onzie Sevinda Pangabeaan Ratna Rosanti Lahay Rosita Sipayung Suci Islami Pane T Simanungkalit Toga Simanungkalit Wika Simanjuntak Yan Pieter Yeni Noviana Zulkarnaen Zulkarnaen

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