SOIL TAXONOMY AND LAND EVALUATION OF THE NORTH NILE DELTA SOILS

Document Type : Research articles.

Authors

Soil, Water and Environment Research Institute-Agric. Res. Center Giza, Egypt

Abstract

Twenty six soil profiles represent the different soils of North
Nile Delta were chosen for this study. The dommonant soil were
nonsaline soils followed by saline, moderately and strongly saline
according to Soil Survey Staff, (1993). Data obtained indicated that
soils of the studied area had no diagnostic horizon or pedogenic
process except the slickenside feature. Wherease, soil had not calcic
or gypsic or salic horigons, due to their low contentt of both calaum
carbonate, gypsum and solube salts, respectively. Therefore they
were classified as Entisol and Vertisol soil orders according to Soil
Survey Staff System, (1998). Therefore the dommonant soil taxa
was Typic Haplotorrerts which was occurred in the most studied
area followed by Typic Torrifluvents and Vertic Torrifluvents, then
the Typic Torripsamments According to Sys and Verhey’s method
of land evaluation (1978), all soils of the studied area could be
classified as suitable for agriculture (S) including the classes:
moderately suitable highly and marginal suitable. The dommont
soils were moderately suitable (S2), wherease, both highly suitable
(S1) and marginally suitable (S3) were as a minor areas according to
Sys and Verhey (1979). The limitation factors for agirctulture wewe
soil texture, soil salinity and soil depth.

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