الفهرس 
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Abstract
The response of three barley cultuvars i.e bonus , enir and ahram 202 to three rates of nitrogen fertilizaton i.e (zero, 20 and 40 Kg N/ fed ) were studied in two successive seaons of 1989/90 and 1990/91 concernind yield components, yield of grain and straw sa well as physical ans technological test od barley grains were conducted.