Respon Pertumbuhan dan Produksi serta Ketahanan Terhadap Serangan Hama dan Penyakit Penting pada Tanaman Jagung Manis (Zea mays saccharata sturt) dengan Aplikasi Biochar Kulit Durian dan Pupuk Kandang Ayam)

Abstract

Response of Growth and Production and also Resistance to pest attacks and disiases essential of Sweet corn plants with the Durian skin Biochar application and with Chicken Manure. Essay. Under the Guidance of Azwana, as Chairman and Sumihar Hutapea, as a member of the supervisor.This research was conducted at the Medan Area Faculty of Agriculture Experimental Garden located on Kolam Street No. 1 Medan Estate, Percut Sei Tuan, altitude + 12 meters above sea level, with flat topography and alluvial lands. The research takes place June through August 2018. The design used in this study was Random Design of Group Factorial (RDG), with 2 research factors, namely: 1) Factors for durian skin biochar (D notation) consisted of 4 levels, namely: D0 = control (without biochar); D1 = 5 ton/ ha (0,72) kg durian skin biochar / plot; D2 = 1 ton/ ha (1,44) kg durian skin biochar / plot; D3 = 1.5 ton/ha (2,16) kg durian skin biochar / plot, and 2) Chicken manure (A notation) factor consists of 4 levels, namely: A0 = control (without chicken manure); A1 = chicken manure 1 ton/ ha (1,44) kg / plot; A2 = 1.5 ton/ ha (2,16) kg chicken manure / plot; A3 = 2 ton/ ha (2,88) kg chicken manure / plot. Each treatment was repeated 2 times. Observable parameters such as: plant height, number of leaves, diameter of stem, cob weight with klobot per sample plant, cob weight without klobot per plant sample, cob weight and klobot per plot, the percentage of pest and diseases attacks. The research: 1) The giving of durian skin biochar has a real effect of plant’s height, diameter of stem, cob weight and klobot per sample, cob weight without klobot per sample, cob weight and klobot per plot, cob weight without klobot per plot and diameter of stem, and an unreal effect on number of leaves, percentage of cob drill attacks and percentage of bulai diseases attack; 2) The giving of chicken manure significantly affected plant’s height, diameter of stem, cob weight and klobot per sample, cob weight without klobot per sample, cob weight and klobot per plot, cob weight without klobot per plot and diameter of stem, and an unreal effect on number of leaves, percentage of cob drill attacks and percentage of bulai diseases attack; and 3) The combination of the two treatment factors has no significant effect on all observed parameters.