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Nini Rahmawati

Program Studi Agroekoteknologi, Fakultas Pertanian, USU, Medan

Author-ID : 5325894

Agriculture, Biological Sciences & Forestry

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Respons Pertumbuhan Dan Produksi Dua Varietas Selada (Lactuca Sativa L.) Terhadap Pemberian Berbagai Sumber Nitrogen Jepriwira K. Ginting; Jonis Ginting; Nini Rahmawati
Jurnal Pertanian Tropik Vol. 5 No. 2 (2018): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

The research aims to determine the growth and production response of two varieties of lettuce (Lactuca sativa L.) to the provision of various sources of nitrogen. This research was conducted in Lambar village, Tigapanah sub-district, Karo regency, Sumatera Utara Province with altitude of ± 1200 meters above sea level, which started on July to September 2017. This research used a factorial randomized block design with 2 factors namely varieties of lettuce (crop and lettuce) and sources of nitrogen (urea fertilizer, chicken manure and Liquid organic fertilizer of rabbit urine). The parameters observed were plant height, greenish leaves, crop circle, fresh weight of plant per sample and fresh weight of plant per plot. The results showed that both varieties were significantly different in the parameters of plant height, greenish leaves, the number of leaves, and the fresh weight of the plant per sample. Application of nitrogen source showed differences in plant height at 10 weeks after move planting and fresh weight of plant per sample.

The Growth Response of Madeira Vine (Anredera cordifolia (Ten.) Steenis) on Different Levels of Shade and Applicationof Fertilizer and Biochar Tapi Mutia Ariani Lubis; Yaya Hasanah; Nini Rahmawati
Jurnal Pertanian Tropik Vol. 5 No. 2 (2018): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

The intensity of the shade and fertilizer are the two aspects of the environment that important for the growth of madeira vine plants. The purpose of the research was to know the growth response of madeira vine on different levels shade and application of fertilizer and Biochar. The research was conducted in the research field of Faculty of Agriculture, Universitas Sumatera Utara, Medan about ± 32 m above the sea, on June to August 2017. This research used Split Plot Design with 2 factors, level of shade (0%; 25%; 50%; dan 75%) and application Fertilizer (without fertilizer; urea 1.6 g/plant; chicken manure 53.3 g/plant; biochar rice husk 294.4 g/plant). This results research showed that without shade (0%) increased the growth of plant length but the 75% shade increased of chlorophyll a, chlorophyll b, and total chlorophyll. Application of chicken manure was increasing plant length, shoot fresh weight but application biochar rice husk increased crop dry weight and leaf area. The interaction of different level shade and application of fertilizer was not significant affecting to the growth madeira vine plant in the end of observation.

Pengaruh Aplikasi Alfatokoferol Terhadap Pertumbuhan dan Produksi Kedelai (Glycine Max (L). Merril) Di Tanah Salin Heru Suganda; Nini Rahmawati; Irsal
Jurnal Pertanian Tropik Vol. 5 No. 2 (2018): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Produksi kedelai di indonesia setiap tahun mengalami penurunan dan tidak dapat memenuhi kebutuhan dalam negri, salah satu penyebab utamanya yaitu semangkin sempitnya lahan pertanian. Untuk meningkatkan produksi kedelai di Indonesia dapat ditempuh dengan cara perluasan areal tanam, yaitu dengan memanfaatkan tanah yang kurang berpotensi salah satunya adalah tanah salin. Penelitan ini dilaksanakan di rumah plastik Fakultas Pertanian Universitas Sumatera Utara, Medan dengan ketinggian tempat + 25 meter di atas permukaan laut dari bulan Agustus 2017 sampai november 2017, menggunakan rancangan acak kelompok faktorial yaitu faktor I: genotip kedelai Anjasmoro X Grobogan, dan Grobogan X Grobogan, faktor II: pemberian konsentrasi alfa tokoferol dengan taraf tanpa alfa tokoferol, alfa tokoferol 250 ppm, alfa tokoferol 500 ppm, alfa tokoferol 750 ppm. berpengaruh nyata terhadap parameter tinggi tanaman, jumlah daun, cabang produktif, umur berbunga, diameter batang, jumlah polong berisi, umur panen, bobot 100 biji pertanaman

Respons Pertumbuhan dan Produksi Tanaman Jagung Manis Terhadap Aplikasi Biochar dan Pupuk Organik Cair Domas Mesiekiel Simanjuntak; Nini Rahmawati; Rosita Sipayung
Jurnal Pertanian Tropik Vol. 5 No. 3 (2018): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Penelitian ini dilaksanakan di lahan penelitian Balai Benih Induk Tanjung Selamat, jalan Pendidikan Kelurahan Tanjung Selamat, Kecamatan Medan Tuntungan, Medan pada ketinggian tempat ± 35 m dpl. Penelitian ini dilaksanakan pada bulan Oktober sampai dengan Desember 2016. Metode percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) faktorial dengan 2 faktor perlakuan yaitu dosis biochar yaitu kontrol, 5 ton/hektar, 10 ton/hektar, 15 ton/hektar dan konsentrasi pupuk organik cair yakni kontrol, 5 ml/liter air, 10 ml/liter air, 15 ml/liter air. Hasil penelitian menunjukkan bahwa perlakuan biochar berpengaruh nyata terhadap peubah amatan volume akar, produksi per sampel dan produksi per plot, perlakuan biochar terbaik ialah 15 ton/hektar.Perlakuan pupuk organik cair berpengaruh nyata terhadap peubah amatan luas daun, volume akar dan produksi per plot, perlakuan pupuk organik cair terbaik ialah 15 ml/liter air sedangkan interaksi antara perlakuan pupuk organik cair dan perlakuan biochar tidak berpengaruh nyata terhadap semua peubah amatan.

Co-Authors Domas Mesiekiel Simanjuntak Heru Suganda Irsal Jepriwira K. Ginting Jonis Ginting Rosita Sipayung Tapi Mutia Ariani Lubis Yaya Hasanah

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