Effect Of Different Nitrogen Fertilization Levels On Yield Of Maize Zea Mays L. As Winter Forage

Abstract The study was conducted for two consecutive seasons 20102011 and 20112012 at the Demonstration Farm of the college of Forestry and Range Sciences Sudan University of Science and Technology Soba Khartoum .the aims of this study was to evaluate the effect of nitrogen fertilization levels on forage maize as a potential winter crop in central Sudan in terms on biomass yield. Three nitrogen fertilization levels were examined. The treatments were arranged in a Randomized Complete Block Design RCBD with four replicates. Parameters studied were plant density plant fresh weight g plant dry weight g and forage yield tonsha. Results obtained reveal that application did not significant affect forage plant density. Application of nitrogen increase fresh and dry weight per plant in all counts .fresh forage yield in terms of fresh forage and dry matter production was significantly increased with application of nitrogen .It was concluded that application of nitrogen fertilizer increase yield of forage maze during the winter season in central Sudan.