الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Three filed experiments were conducted in Kafr ElSheikh Govemorate during 1999/2000, 2001/2002 and 2002/2003 seasons to study the effect of different land leveling methods, biofertilizer treatments and nitrogen levels on yield, yield attributes and grain quality of wheat cultivar Sakha 93. The experiments were laid out in strip split plots design with four replications whereas the vertical plots included three land leveling method; laser leveling with 0.1% surface slope, 0.0% surface slope and traditional levels. The horizontal plots allocated to biofertilizer treatments viz.; control, cerialine and microbian while four nitrogen level namely; 45, 60, 75 and 90 kg N/fed. were distributed in sub plots. The studied characters significantly affected by land leveling methods, biofertilizer treatment and nitrogen levels. Land leveling using laser with 0.0% surface slope performed better regarding yield, yield attributes and grain quality followed by laser leveling with 0.1% surface slope .Cerialine biofertilizer performed better in the yield and grain quality while no significant differences between cerialine and microbian were detected in majority of the yield attributes. The wheat yield significantly responded for nitrogen level up to 75 kg N/fed. While Nitrogen percentag in the grain and curied protein were increased up to 90 kg. Using biofertilizer at rates 500(gm) /fed cerialine or microbiancould same 15 kg N/fed.