الفهرس 
introductionOnly 14 pages are availabe for public view
 |  | from | 119 |  |  |
| | | from | 119 | | |
Abstract
The present work Study the quantitative changes in the physical and chemical properties of soil as influenced by different types of farm machines , used for preparing soil such as ploughs, cultivators, seeding machines, mowers and compines compared to manual method.It is also advisable to identify what type of machine willbe required to obtian and disseminate proper technical information.