الفهرس | Only 14 pages are availabe for public view |
Abstract in the pre High Dam area, the potassium reservoir of the soils Egypt used to be replenished every year.This is now history of the past, and the amount of Nile sediments after the high dam is negligible. The quantitative estimates of soil potassium as compared with those of the pre High Dam. An Answer to this question is the second objective of this work. |