The algal flora of some cultivated soils in addition to edaphic and physicochemical characters of sols were extensively studied at four different locations in Gharbia Governorate during the period from April 1995 to March 1996.From the total count recorded (218 species) it was found that 143 species belong to cyanophyta, 60 species to chlorophyta, 13 species to Bacillariophyta and 2 species to Eug...