this point is linked with a designed paper about the beginning of life and how the Egyptian in their ancient times expressed that..
The flood plains of major rivers have been the source of many of the most fertile soils that helped agriculture develop and civilization flourish.
Where on earth the most fertile soil, and how that influence the size of its crop?? how we can measure that????
The flood plains are areas of fertility as the fine sediments are rich in nutrients. The implication of the high nutrient and water ability is higher crop yields and richer nutrient content in the crops. In the case of Egypt the control of flooding makes the agricultural lands more depend on fertilizers or other amendment to retain its fertility level. The use of soil and foliar nutrient analysis can be critical for defining the needs of plants which are not met under different soil conditions and how to remediate them.