Performance of wheat yield under different fertilizer types, application and doses at Northern Sudan State

The experiment was conducted during the successive seasons of 2008/2009 and 2009/2010 at the Demonstration Farm of the Faculty of Agricultural Sciences, University of Dongola, Northern State, Sudan. The aim of this experiment was to study the effect of fertilizer doses, types and application methods on the grain yield of wheat (Triticum aestivum L.). Experimental method is a split-split plot trial with four replications. The main plot was composed of tow methods of fertilizer application (broadcasting and localized placement) in randomized complete block design. Subplots consisted of tow types of compound fertilizers (Urea + Triple super phosphate) and Nitrophoska. Sub-subplots consisted of four doses of each fertilizer. Yield components of wheat which were investigated in this study included number of grains per spike, thousand grains weight, spike index, grain yield and harvest index. In this study the general trend was that the increase in fertilizer dose highly significant increased number of grains per spike in the second season, grain yield in both seasons, but there were no significant difference in thousand grains weight and spike index which were not affected. The results showed that the fertilizer doses significantly decreased harvest index. Generally the results show that there were no significant differences in yield components between the fertilizer types and between the application methods.