الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Maize (Zea mays L.) is the world‟s widely grown highland cereal and primary staple food crop in many developing countries. Maize (Zea mays) is not only a key human food and animal feed crop throughout the world but also an important raw material for the food industry and energy production plants (Akmal et al. 2010).The Egyptian government aims to increase the cultivated land by about 1.5 million Fadden (fed). Attention has been focus to the Southwestern coast of Egypt.The newly reclaimed soils at Nubaria and Borg El-Arab regions cover more than 900.000 fed. Of which 290.000 fed are calcareous soils (Moursy 2002). These soils are distributed to graduates, beneficiaries and private sector for utilization in agriculture. In addition to, these soils are primarily characterized by slightly alkaline reaction, poor fertility, low organic matter content and poor physical properties. Since Zea mays is a major cereal crop in such soils, therefore, more efforts and studies are necessary to improve its cultivated in such calcareous soils.