Two Pot experiments were conducted to study the effect of some characteristic of calcareous soil on available phosphorus on North Africa by wheat plant. Four soils from the north western coast of Egypt, Located at 160km Cairo Alexandria desert Road and EL-Nubaryia Agric. Res. Station were chosen for this study to represent the calcareous soils of the north western coast of Egypt as part of the Northern Coast of Africa.

Aida Samir Agricultural Specialist on Soils and water management, Cairo Agriculture Moderyat, Cairo Governorate, Egypt, Graduated from Institute of African Research and Studies, Department of Natural Resources Cairo University, Egypt in 2012.