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All Journal AGROEKOTEKNOLOGI Jurnal Penelitian Karet
Nini Rahmawati
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Education

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Perubahan Karakter Agronomi Bawang Merah (Allium ascalonicum L.) Aksesi Simanindo Samosir Akibat Pemberian Berbagai Dosis Iradiasi Sinar Gamma Jerianta Ginting; Nini Rahmawati; Mariti Mariati
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.731 KB) | DOI: 10.32734/jaet.v3i1.9485

Abstract

The aim of the research was to identify the variation of agronomy characters of shallot by giving several doses of gamma rays. Research was conducted at  Jl. Selamat  Ketaren, Medan about 25meters above sea level started from April until July 2014. Bulbs of shallot exposed to gamma raysirradiation to several doses between 1-15 Gy (M0V1) using Co60 source and unirradiated bulbs(M0V0/control). The differencies of agronomic characters  between irradiated (M) andunirradited plants (M0V) was analyze by t-test using minitab v.16. The results showed there weredifferencies between irradiated plant and unirradiated plant. Shoot emerged time of irradiated plantat doses 4-15 Gy were longer about 1,70 up to 5,36 days; shoot length and leaves number ofirradiated plant at doses 5-12 Gy in 6 weeks after planting (WAP) were shorter about 3,05 up to23,93 cm and were reduced about 1,33%; up to 79,06% compared to control. Meanwhile,harvesting age of irradiated plant at dose 4 Gy was reduced 2,05 days; weight and diameter per bulbof irradiated plant at dose 3 Gy was increased about 0,66 g and  28,59% compared to control.Keywords: shallot, irradiation, gamma rays 11V1
Effect of mikorizha and granting planting media composition on oil palm nurseries on pre nursery Fadli Azhari Harahap; Nini Rahmawati; Rosita Sipayung
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v3i1.9492

Abstract

The growth of seedlings in the field in very determined by the growth of plants in the nursery.Planting media is the one factors that affect the growth of plants in the nursery. Therefore, by givingmikorizha and composition of the planting media is expected can increase the growth of oil palmnurseries in pre nursery. This research was conducted in screen house af Faculty AgriculturalUniversity of Sumatera Utara with altitude ± 25 meters from sea surface from April-July 2014, usedrandomized block design with  two factors. The first factor is composition of planting media (sludge+ ultisol) with four levels (0% + 100%) (S0); (25% +75%) (S1); (50% + 50%) (S); (75% + 25%)(S3) and the second factor is mikorizha with three levels 0 (M0); 5 (M12); 10 g/plant (M). Parameterobserved was plant height, stem diameter, number of leaves, total leaf area, leaf greenes, degree ofinfection, root volume, shoof dry weight root dry weight. The result of this research showed that useof planting media composition significantly effect to plant height parameters 6-12 weeks afterplanting, stem diameter 6-12 weeks after planting, number of leaves 6,7,8,10,11 weeks afterplanting, total leaf area, green leaf, degree of infection, root volume and plant dry weight.Mikorizha treatmen is significantly effect the degree of infection parameters. Interaction ofcompositition planting media and mikorizha significantly effect on plant height at 6 weeks afterplanting and degree infection.Keywords: mikorizha, sludge, ultisol, palm oil 2
Respons Pemberian Kompos Tandan Kosong Kelapa Sawit dan Zeolit Terhadap Pertumbuhan Bibit Kelapa Sawit di Pre Nursery Gia Asra; Toga Simanungkalit; Nini Rahmawati
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (298.344 KB) | DOI: 10.32734/jaet.v3i1.9494

Abstract

This research aims for knowing the response a giving of oil palm seeds in the results of giving empty fruit bunches of oil palm compost and zeolite in pre nursery. The researched was carried outat Faculty of Agricultural screen house, USU (± 25 mdpl) in March – July 2014 using a randomizedblock design with two factors. The first factors was dose empty fruit brunches of oil palm compostwith four levels that were including 0 g/polybag; 15 g/polybag; 30 g/polybag; 45 g/polybag; andthe second factor was dose of zeolite with four levels that were including 0 g/polybag; 5 g/polybag;10 g/polybag; 15 g/polybag. The results of research shows that the application of empty fruitbrunches of oil palm compost had a real impact on the stem diameter and total leaf area. As for thediameter of stem best level was obtained at treatment EFBOP compost 45 g/polybag and total leafbest level was obtained at treatment EFBOP compost 30 g/polybag. Giving the zeolite wasevidently influencial toward the stem diameter, total leaf area, crowns wetness weight, root drynessweight, and crowns dryness weight. Zeolite best level was obtained at treatment zeolite 5g/polybag. The interaction between empty fruit brunches of oil palm compost and zeolite fertilizerwas evidently influencial towards the total leaf area and crowns dryness weight in pre nursery. Besttreatment combination level was found of which was 30 g/polybag of empty fruit brunches of oilpalm compost and5 g/polybag of zeolite. Key words: EFBOP compost, zeolite, and oil palm
Respon Pertumbuhan dan Produksi Tanaman Jagung Terhadap Frekuensi Pemberian Pupuk Organik Cair dan Aplikasi Pupuk NPK Mastor Palan Sitorus; Edison Purba; Nini Rahmawati
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (436.305 KB) | DOI: 10.32734/jaet.v3i4.11650

Abstract

Penelitian ini bertujuan untuk menentukan frekuensi aplikasi POC dan pupuk NPK pada tanaman jagung. Rancangan penelitian yang digunakan adalah Rancangan Acak Kelompok faktorial dengan 2 faktor. Faktor pertama adalah frekuensi pemupukan POC dengan 3 taraf antara lain 1 kali, 2 kali, dan 3 kali ditambah kontrol tanpa pemupukan. Faktor kedua adalah aplikasi pupuk NPK dengan 2 taraf antara lain 185 g/plot, dan 370 g/plot ditambah kontrol tanpa pemupukan. Hasil penelitian menunjukkan bahwa frekuensi pemupukan POC berpengaruh tidak nyata terhadap tinggi tanaman, diameter batang dan produksi per plot. Perlakuan aplikasi pupuk NPK berpengaruh nyata terhadap diameter batang umur 15-60 HST dan produksi per plot. Interaksi antara frekuensi pemupukan POC dan aplikasi pupuk NPK tidak berpengaruh nyata terhadaptinggi tanaman, diameter batang dan produksi per plot.Kata kunci: Frekuensi pemupukan, POC, NPK, jagung
Pengaruh Pemberian Pupuk Organik Terhadap Pertumbuhan Dan Produksi Ubi Jalar Ungu (Ipomoea batatas L.) Rian Eko Pradana; Nini Rahmawati; Mariati Mariati
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (213.969 KB) | DOI: 10.32734/jaet.v4i4.13430

Abstract

ABSTRACT The low yield of sweet potato tubers often associated with low soil organic fertilizer content. This research was conducted in Desa Namo Gajah, Medan Tuntungan with altitude ± 25 meters above sea level began from Mei up to October 2015. The research  was  arranged   with   non   factorial   randomized  block  design  with  P0 (Control), P1 (manure of cattle (7.5 tons/ha), P2  (manure of cattle (15 tons/ha), P3 (manure of cattle (22.5 tons/ha), P4 (empty fruit bunches composts (7.5 tons/ha), P5 (empty fruit bunches composts (15 tons/ha),  P6 (empty fruit bunches  composts (22.5 tons/ha), P7 (rice straw composts (7.5 tons/ha), P8 (rice straw composts (15 tons/ha) and P9 (rice straw compost (22.5 tons/ha). Parameter observed were length of plants, length of tuber per sample, the number of tubers per sample, the weight of plant biomass per sample, the average weight of tubers, and harvest index. The results showed that the number of tuber per sample, weight of tuber per sample, the average weight of tuber per sample, and harvest index were significantly effected by organic fertilizer. P3 (manure of cattle (22.5 ton/ha) produces the highest number of tubers that was 1.17 tuber, weight of tuber heaviest was 450.23 grams, the average weight of tuber was 388.88 grams and the haviest harvest index was 0.34. Key words : organic fertilizer, purple varieties, sweet potato  ABSTRAK Rendahnya hasil umbi ubi jalar sering dihubungkandengan rendahnya kandungan bahan organiktanah.Penelitian ini dilaksanakan di lahan masyarakat Desa Namo Gajah, Medan Tuntungan dengan ketinggian tempat ± 25 meter dpl dari bulan Mei sampai Oktober 2015, menggunakan Rancangan Acak Kelompok Non Faktorial yaitu P0 (Kontrol), P1 (Pupuk kandang sapi (7.5 ton/ha), P2 (Pupuk kandang sapi (15 ton/ha), P3 (Pupuk kandang sapi (22.5 ton/ha), P4 (Kompos TKKS (7.5 ton/ha), P5 (Kompos TKKS (15 ton/ha), P6 (Kompos TKKS (22.5 ton/ha), P7 (Kompos jerami padi (7.5 ton/ha), P8 (Kompos jerami padi (15 ton/ha), dan P9 (Kompos jerami padi (22.5 ton/ha). Parameter yang diamati adalah panjang tanaman, panjang umbi per sampel, jumlah umbi per sampel, bobot umbi per sampel, bobot biomassa tanaman per sampel, rataan bobot umbi, dan index panen.Hasil penelitian menunjukkan bahwaperlakuan pupuk organikberpengaruh nyata terhadap jumlah umbi per sampel, bobot umbi per sampel, rataan bobot umbi, dan indeks panen. P3 (pupuk kandang sapi (22.5 ton/ha) menghasilkan jumlah umbi terbanyak yaitu 1.17 umbi, bobot umbi terberat yaitu 450.23 gram, rataan bobot umbi terberat yaitu 388.88 gram dan index panen yaitu 0.34. Kata Kunci : pupuk organik,ubi jalar, varietas ungu
Pertumbuhan dan Produksi Tiga Varietas Kedelai Hitam (glycine max (L.)Merril) Dengan Pemberian Berbagai Jenis Bahan Organik Riza Syifani Nasution; Jonatan Ginting; Nini Rahmawati
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (250.997 KB) | DOI: 10.32734/jaet.v4i4.13485

Abstract

ABSTRACT The use of black soybean is still very little compared to yellow soybeans are widely used as raw material for food. The low production of soybean Indonesia one of them because there is not maximal knowledge of farmers in the use of technologies that support sustainable agricultural. Using improved varieties and availability of organic materials is the main requirement to increase soybean production. The objective of the research is to determine the variety and type of organic material on the growth and production of black soybeans.The experiment was conducted in Setia Budi Street, Simpang Pemda District of Medan Selayang on December 2015 to March 2016, using a factorial randomized block design with three factors, the first factor is varieties (Cikuray, Detam-2, Malikka) and the second factor is organic matter (Kontrol, Kompos Jerami Padi, Biochar, Bokashi). Observed were plant height, root dry weight, seeds per plant dry weight, dry weight of seeds per plots, the dry weight of 100 seeds, dry weight of seeds per hactare.The results showed that application of varieties increased plant height 4 and 6, dry weight of seeds per plots. The dry weight of 100 seeds, dry weight of seeds per hactare and organic matter increasing the seeds per plant dry weight, dry weight of seeds per plots and dry weight of 100 seeds. Keywords: black soybean, organic matter, varieties  ABSTRAK Penggunaan kedelai hitam masih sangat sedikit dibandingkan kedelai kuning yang banyak digunakan sebagai bahan baku pangan. Produktivitas tanaman kedelai nasional mengalami penurunan setiap tahunnya. Rendahnya produksi kedelai Indonesia salah satunya dikarenakan belum maksimalnya pengetahuan petani dalam penggunaan teknologi produksi yang mendukung pertanian berkelanjutan. Menggunakan varietas unggul dan tersedianya bahan organik merupakan syarat utama dalam meningkatkan produksi kedelai. Tujuan penelitian yakni untuk mengetahui varietas dan jenis bahan organik terhadap pertumbuhan dan produksi   kedelai hitam. Penelitian dilaksanakan di Jalan Setia Budi, Simpang Pemda Kecamatan Medan Selayang pada Desember 2015 sampai Maret 2016, menggunakan Rancangan Acak Kelompok Faktorial dengan dua faktor yaitu Varietas (Cikuray, Detam-2, Malikka) dan Bahan Organik (Kontrol, Kompos Jerami Padi, Biochar, Bokashi). Peubah yang diamati adalah tinggi tanaman, bobot kering biji per tanaman, bobot kering biji per plot, bobot 100 biji kering, bobot kering biji per hektar. Hasil penelitian varietas meningkatkan Tinggi tanaman 4 dan 6 MST, bobot kering biji per plot, bobot 100 biji, dan bobot kering biji/ha. Pemberian pemberian bahan organik meningkatkan bobot kering biji per tanaman, bobot kering biji per plot, dan bobot kering biji/ha. Kata kunci : bahan organik, kedelai hitam, varietas
Respons Pertumbuhan Dan Produksi Kedelai (Glycine max (L. Merril) Terhadap Pemberian Biochar Sekam Padi Dan Pupuk P Dieni Annisa Siregar; Ratna Rosanty Lahay; Nini Rahmawati
Jurnal Agroekoteknologi Vol 5, No 3 (2017)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.513 KB) | DOI: 10.32734/jaet.v5i3.16362

Abstract

Tujuan penelitian yakni untuk mengetahui respons pertumbuhan dan produksi kedelai terhadap pemberian biochar sekam padi dan pupuk P. Penelitian dilaksanakan di UPT Balai Benih Induk (BBI) Palawija Tanjung Selamat, Kecamatan Medan Sunggal, pada Juli – September 2016, menggunakan Rancangan Acak Kelompok Faktorial dengan dua faktor yaitu dosis Biochar : 0, 6, 12, 18 t/ha dan dosis Pupuk P : 0, 75, 150 Kg/ha SP36. Hasil penelitian menunjukkan bahwa pemberian biochar berpengaruh nyata terhadap tinggi tanaman 2,5 dan 6 MST, diameter batang, jumlah cabang produktif, bobot biji kering per tanaman. Perlakuan pemberian pupuk P berpengaruh nyata terhadap jumlah polong/tanaman, jumlah polong/tanaman, bobot kering biji per tanaman, bobot kering biji per plot. Interaksi perlakuan pemberian biochar dan pupuk P berpengaruh tidak nyata pada setiap parameter. Bobot kering biji per tanaman tertinggi terdapat pada pemberian 6 ton biochar sekam padi /ha dan bobot kering biji per plot tertinggi terdapat pada pemberian 150 kg SP36/ha.
Pengendalian Rumput Belulang (Eleusine indica L.) dengan Berbagai Herbisida pada Tanaman Karet Belum Menghasilkan di Kebun Rambutan PTPN 3 Edison Purba; Nini Rahmawati
Jurnal Agroekoteknologi Vol 6, No 1, Januari (2018)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.376 KB) | DOI: 10.32734/jaet.v6i1, Januari.17252

Abstract

Penelitian bertujuan untuk mengevaluasi efektifitas pengendalian rumput belulang (E.indica) dengan herbisida Indaziflam, Paraquat, Glifosat + Metil metsufuron pada tanaman karet belum menghasilkan (TBM). Penelitian ini dilaksanakan pada bulan Juli 2016 sampai Januari 2017, dengan melakukan 2 unit penelitian, unit pertama yaitu aplikasi berbagai herbisida Glifosat 720 g b.a/ha, Paraquat 300 g b.a/ha, Indaziflam 100 g b.a/ha, dan Glifosat 720 g b./ha + Metil metsufuron 15 g b.a/ha dengan petak percobaan sebesar 3 x 10 m dan petak pengamatan 1 x 1 m sebanyak 3 ulangan. Unit kedua yaitu penumbuhan seedbank di Lahan Fakultas Pertanian Universitas Sumatera Utara. Hasilnya adalah pengendalian E.indica terbaik yaitu didapat pada herbisida indaziflam 100 g b.a/ha dan menghasilkan mortalitas tertinggi 100%. Sedangkan jenis seedbank yang banyak tumbuh dari setiap pengendalian yaitu adalah E.indica dan Kyllinga monocephala.Kata kunci : E.indica, herbisida, karet, resistan dan seedbank  
The influence of coconut water concentration and duration storage of rootstock to the percentage of budding success and cassava’s (mukibat) growth Muhammad Indra Iswahyudi; Nini Rahmawati; Mariati Mariati
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (587.063 KB) | DOI: 10.32734/jaet.v6i4,Okt.18707

Abstract

The purpose of the research was to determine the influence of coconut water concentration  and duration storage of rootstock  to the percentage of budding success and cassava’s (mukibat)  growth. The research was conducted at the screen house of Agriculture Faculty USU (± 32m asl) in March-June 2017 using Factorial Randomized Block Design (RAK) repeated 3 (three) times. The first factor was the coconut water concentration  with 4 (four) levels ie without coconut water, 25% coconut water, 50% coconut water and 75% coconut water and second factor of storage duration of rootstock  with 3 (three) treatment levels: 1 (one) week storage, 2 (two) weeks storage, and 3 (three) weeks storage. Parameter observed were percentage of budding success, spinning rate, shoot height, shoot diameter, number of leaves, number of tubers, root wet weight, and root dry weight. The results showed that the coconut water concentration had a significant effect on the success rate of budding, root wet weight, and root dry weight. Where the best coconut water concentration is at 50% coconut water treatment. The longer duration storage of rootstock gives fewer percentage of budding success. The best storage time for rootstock was 1 (one) week storage. The interaction of coconut water concentration and storage duration of rootstock had significant effect on the number of leaves.
Pertumbuhan dan Hasil Produksi Jagung Manis Terhadap Pola Tumpangsari Serta Pemupukan NPK saut hamonangan pangaribuan; Chairani Hanum; Nini Rahmawati
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.15 KB) | DOI: 10.32734/jaet.v6i4,Okt.19076

Abstract

Tujuan dari penelitian ini untuk mempelajari pengaruh pola tanam tumpangsari dan pemupukan NPK  dalam pertumbuhan dan produksi jagung manis. Penelitian ini dilaksanakan di Kecamatan Percut Sei Tuan, Kabupaten Deli Serdang, Desa Tanjung Selamat pada bulan Mei sampai November 2016. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) faktorial yang terdiri dari 2 faktor yaitu: faktor pertama pola tanam (monokultur jagung manis, tumpangsari jagung manis – padi gogo, tumpangsari jagung manis – kedelai) dan faktor kedua pupuk NPK (0, 50, 100, 150 g/plot). Hasil penelitian menunjukkan bahwa pola tanam tumpangsari berpengaruh nyata terhadap tinggi tanaman 6 MST dan luas daun jagung manis. Dosis pupuk NPK berpengaruh nyata terhadap tinggi tanaman 6-7 MST, luas daun, dan jumlah baris per tongkol jagung manis. Interaksi antara pola tanam dan dosis pemberian pupuk NPK berpengaruh tidak nyata. Nilai Nisbah Kesesuaian Lahan yang tertinggi diperoleh pada pola tanam jagung manis – kedelai dengan pemupukan NPK (100 g/plot).
Co-Authors Afifudin Dalimunthe Amelia Sebayang ASMARLAILI SAHAR Asmarlaili Sahar Hanafiah Balonggu Siagian Chairani Hanum Chairani Hanum Charloq Dieni Annisa Siregar domas mesiekiel simanjuntak Edison Purba Emmy Harso Kardhinata Fachrina Wibowo Fadli Azhari Harahap Gia Asra Irsa Irsa Jerianta Ginting Jonatan Ginting Lahay, Ratna Rosanty Lisa Lisa Mawarni Mahfriza Fansuri Mahfriza FansuriQ Mariati Mariati Mariti Mariati Mastor Palan Sitorus Meiriani Meiriani Muhammad Ardiansyah Muhammad Indra Iswahyudi Perdana Roy Oksemsa Purba Prihyanti Lasma E. Sinaga Ratih Dewi Rengganis Retno Astari Rian Eko Pradana Riza Syifani Nasution Romi Martino Sitanggang rosita sipayung Rosmayati Rosmayati saut hamonangan pangaribuan T. Chairun Nissa B Tapi Mutia Ariani Lubis Titania Ade Yulivi Toga Simanungkalit Tua Bastari Prima Bangun Uli Kris Putri Sitorus Yaya Hasanah