discussed a master's thesis in the College of Agriculture, Department of Field Crops, University of Basrah Response of growth, yield and quality of sudanese grass to the level of nitrogen fertilizer addition and its fractionation The thesis of researcher Safa Bahjat Abdel Hassan, under the supervision of Prof. Dr. Sundus Abdel Karim Mohamed, included a study of the effect of four levels of nitrogen fertilizer (0, 150, 200 and 250 kg N ha-1), and three fractionation treatments for adding nitrogen fertilizer (¼ two weeks after emergence + ½ after the first mowing + ¼ after the second moth and ½ after two weeks of emergence + ¼ after the first mowing + ¼ after the second mowing and ⅓ after two weeks of emergence + ⅓ after the first moth + ⅓ after the second moth) and the interaction between them is growth, yield and quality of green and dry fodder Sudan hashish hybrid. The thesis aimed at knowing the extent of response of the Sudan grass crop to the level of nitrogen fertilizer, its fragmentation, and the effect of the interaction between the two workers on the growth, yield and quality of the Sudan grass crop. The thesis concluded that the level exceeded 200 kg N ha-1 and recorded the highest averages in most of the growth characteristics and for the three weeds. It also achieved the highest yield of green fodder and dry forage yield of the three weeds, yield of green and dry fodder total and the percentage of protein in the plant, while a significant decrease in the percentage of fiber By increasing the level of addition of nitrogen fertilizer, and splitting the addition of nitrogen fertilizer ½ after two weeks of emergence + ¼ after the first mowing + ¼ after the second mowing increased the yield of green and dry fodder significantly compared to other fractionation methods, and the interaction between this fractionation treatment and the level of fertilizer was 200 kg N ha-1 has the highest total green and dry forage yield.
