الفهرس 
Effect of nitrogen levelsOnly 14 pages are availabe for public view
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Abstract
This work was carried out in the Farm of Faculty of Agriculture
kafr EI-Sheikh. during the winter sessions of 1987-88 and 1988-89 . the main objective of this work was to study the effect of some fertilizer levels from three nitrogenous sources i.e., urea. ammonium nitrate end ammonium sulphats on cabbage production cv. Balady. Four fertilizer levels 30 • 60. 90 and
120 kg N/fed. were used. The experiment was designed as split
plot with four replications. The study included vegetative growth. yield quality end chemical analysis.