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Abstract
The following points were conducted in the present study :
1-Effect of planting dates on growth, yield and yield components of maize.
2-Effect of nitrogen fertilization on growth, yield and yield components of maize.
3-Effect of cultivars on growth, yield and yield components of maize.
4-Effect of planting dates, nitrogen fertilizationn levels and cultivars interaction on growth, yield and yield components of maize.
5-Simple correlation.