Effect of Nitrogen Fertilization on Yield, Technological and Rheological Characters of Wheat (Triticum aestivum L.)

THIS INVESTIGATION was carried out at the Experimental Farm. Faculty of Agriculture, Minufiya University. Shebin El-Kom, Egypt during 2004/2005 and 2005/2006 seasons to study the effect of nitrogen ( N ) fertilization (0. 25 , 50 , 75 and 100 kg N/fed) on yield and its components, milling, technological and rheological characters of wheat crop (Triticum aestivum L ). The data revealed that plant height, number of tillers . spikes/ m2, spike length, number of spikelets, number of grains and yield/spike. 1000-grain weight and grain, straw and biological yields/fed as well as harvest index were significantly affected by N fertilization Increasing nitrogen fertilization from zero up to 100 kg N/fed significantly increased also flour and fine brail, but decreased coarse bran. Protein . wet and dry gluten fractions were significantly increased with increasing nitrogen applications up to 75 kg N/fed. The highest values of total carbohydrate content and the lowest value of ash content were recorded when using 100 kg N/fed . On the other hand, the highest values for farinograph characters (water absorption percentage, dough stability time) were obtained by using 100 kg N / fed , but the highest value of dough weakness was recorded by unfertilized plants