Pertumbuhan dan Produksi Tanaman Kentang (Solanum Tuberosum L) Bermikoriza Dengan Aplikasi Bahan Organik Limbah Kubis dan Pupuk Kimia Sintetis di Kabupaten Tanah karo

Abstract

Growth And Production of potato (Solanum tuberosum L) mychorrhizal with Application of Organic Waste Materials Cabbage (Brassica oleracea And Synthetic Chemical Fertilizer In Tanah Karo). The study was conducted at the Experimental Garden Vegetable Research Institute (KPBPS), Tongkoh Berastagi conducted from July through Sempember 2015. The study was designed by Design Randomized Factorial consisting of 2 factors. The first factor is the dose Organic Brassica (A) with 5 levels ie A = 0 kg of cabbage / plot; A1 = 1 kg cabbage / plot; A2 = 0.75 kg cabbage plot; A3 = 0:50 kg cabbage / plot; A4 = 0:25 kg of cabbage / plot second factor is the number of synthetic chemical fertilizers on crop cultivation of potatoes (B) with 5 levels ie B0 = 0%; B4 = 100% recommendation; B3 = 75% recommendation; B2 = 50% recommendation; B1 = 25%. recommendation.the parameters observed in the plant height (cm) number of leaves (cm), leaf area (cm2), diameter (cm), weight bulbs (gram).the results of this study indicate that the use of organic waste materials applications cabbage (brassica oleracea and synthetic Chemical Fertilizer In Tanah Karo), it can not improve all parameters were observed during the study.