الفهرس Only 14 pages are availabe for public view
 |  | from | 116 |  |  |
| | | from | 116 | | |
Abstract
The objectives of the research:
1-Selecting the tillage system which decreases the population of avena weed and increases the wheat crop production.
2-Selecting the proper planting methods which decreases the population of avena weed and increases the wheat crop production.
3-Selecting the proper tillage system which reduces the power, energy and cost
The main experiments were carried out through two season of 2008 and 2009 at Kafr Awad (Ibrahyamya Center- El sharkia)