الفهرس 
introductionOnly 14 pages are availabe for public view
 |  | from | 121 |  |  |
| | | from | 121 | | |
Abstract
Study The Influnce Of Precision land levelling on water comsubtion for wheat on two types of soil clay and sandy loam soils by compasing with traditional levelling. Find At The Most Efficient Water mangment system for both types of soil. Study the effect of laser levelling on some phescical soil charactrest in comarison to traditional leveling. Levelling yield