الفهرس | Only 14 pages are availabe for public view |
Abstract The aim of this study was to identify changes in the soil characteristics of EI-Salheya area as a result of its rreclamation and cutt LvatLon , Eight profiles representing virgin uncultivated unreclaimed soils (adjacent to or near by cultivated fields) were compared to twelve profiles selected in cultivated fields. Characterization of soils: Soil are fluvial Nile River terraces with almost homogenous deep profile having texture ranging from sands to loams. Crop were irrigated by flooding or by centre-pivot sprinkler systems using Niie water or well water. NoncUltivated soils were desert sands having sparse vegetation. Soils underwent changes in their properties as a results of their reclamation and cUltivations; as shown in the table (a) . Texture: Texture changed towards fineness as clay contents, which did not exceed 9% in virgin soils, were increased to contents reaching up to 25%’ in reclaimed soils. A reverse trend occurred to sand, which decreased upon reclamation. |