i ABSTRACT
SUCI FATWANI SIREGAR : Response Growth and Production of Deli Tobacco (Nicotiana tabacumL.) by Giving on concentration and time application of liquid organic fertilizer. Supervised by ASIL BARUS and IRSAL.
This research has been conducted to study theresponse in growth and production of tobacco Deli on concentration and time application of liquid organic fertilizer.This research has been conducted in screen house at the Faculty of Agriculture, University of Sumatera Utara, Medan (± 25 m above sea level) during November 2015 until January 2016 using factorial randomized block design with two factors are concentrationof liquid organic fertilize(0; 5 ; 10 ; 15 ml/L) and time application liquid organic fertilizer {(7,14);(14,21);(21,42) day}. The parameters observed were plant height, diameter of stem, numbers of leaf, width of sand leaf, width of the first foot leaves, long of sand leaves, long of the first foot leaves, thickness of sand leaf, thickness of the first foot leaves, wet weight of sand leaf and dry weight of first foot leaf. The results of the research showed that concentrate of liquid organic fertilizer significantly affected in parameters plant height, diameter of stem, numbers of leaf, long of sand leaf, long of the first foot leaf, width of sand leaf, and wet weight of sand leaf. Time application of liquid organic fertilizer significantly affected in parameters plant height and long of sand leaves. Both of interaction unsignificantly affected to all parameters.
Keywords: liquid organic fertilizer, concentration, time application, Deli tobacco
ii ABSTRAK
SUCI FATWANI SIREGAR : Respons Pertumbuhan dan Produksi Tembakau Deli (Nicotiana tabacum L.) Terhadap Konsentrasi dan Waktu Pemberian Pupuk Organik Cair. Dibimbing Oleh ASIL BARUS dan IRSAL.
Penelitian ini dilakukan untuk mengetahui pengaruh pertumbuhan dan produksi tembakau Deli terhadap konsentrasi dan waktu pemberian pupuk organik cair (POC). Penelitian ini dilakukan di Rumah Kasa Fakultas Pertanian
Universitas Sumatera Utara, Medan (± 25 m dpl) pada bulan November 2015 – Januari 2016 menggunakan Rancangan Acak Kelompok
faktorial dengan 2 faktor yaitu konsentrasi POC (0 ; 5 ; 10 ; 15 ml/L) dan interval pemberian POC {(7,14);(14,21);(21,42) hari}. Parameter yang diamati adalah
tinggi tanaman, diameter batang, jumlah daun, lebar daun pasir, lebar daun kaki I, panjang daun pasir, panjang daun kaki I, tebal daun pasir, tebal daun kaki I, berat basah daun pasir, berat basah daun kaki 1,berat kering daun pasir, berat kering daun kaki1.Hasil penelitian menunjukkan bahwa konsentrasi pupuk organik cair berpengaruh nyata terhadap parameter tinggi tanaman,diameter batang, jumlah daun, panjang daun pasir, panjang daun kaki 1, lebar daun pasir, dan berat basah daun pasir. Waktu pemberian pupuk organik cair berpengaruh nyata terhadap parameter tinggi tanaman pada 18 HSPT dan panjang daun pasir. Interaksi keduanya tidak berpengaruh nyata terhadap semua parameter.
Kata Kunci : pupuk organik cair, konsentrasi, waktu pemberian, tembakau Deli
