what is the black soil along the Nile River

http://library.thinkquest.org/16645/the_land/nile_river.shtml

Indians puke.

Since this is not my area of expertise, I searched Google under the key words "Nile 'black soil'" to get these possible sources:

http://www.answers.com/topic/upper-and-lower-egypt
http://encarta.msn.com/encyclopedia_461511156/Ancient_Egypt.html
http://www.prntrkmt.org/geography/nile.html
(Broken Link Removed)
http://www.k12.hi.us/~kapunaha/student_projects/unwrap/nileriver.htm

However, looking for just "black soil" I found:

http://en.wikipedia.org/wiki/Black_soil
http://www.indiaagronet.com/indiaagronet/soil_management/CONTENTS/Management%20of%20black.htm
http://columbia.thefreedictionary.com/Black+Soil

Although these latter sources are from different areas, the makeup of the soils might be similar.

I hope this helps a little more. Thanks for asking.

The black soil along the Nile River is known as Nile Black Soil or Nile Silt. It is formed from the sediment carried by the river and deposited during flooding. This fertile soil is rich in minerals and organic matter, making it ideal for agricultural activities. Farmers in Egypt have been utilizing this fertile soil for thousands of years to grow crops such as wheat, maize, barley, and cotton. The black color of the soil is due to the high clay content, which helps retain moisture and nutrients for the plants. The Nile Black Soil is one of the key factors that have made the Nile River Valley a fertile and productive agricultural region.