Monitoring soil properties changes associated with the applied agro-management practices in some newly reclaimed areas of Egypt [electronic resource].
متابعة التغيرات في خصائص التربة المصاحبة لعمليات الخدمة الزراعية في بعض المناطق.
- p.32-46.
Includes references.
This study was an attempt to identify the changes in soil physicochemical properties and nutrients status as associated with agro-management practices in some newly reclaimed areas due to their utilization for agriculture under different land use periods and farming systems. So, three areas that have different soil origins, i.e., fluvio-lacustrine deposits at Sahl El Hussania, aeolian deposits at El Salhia area and marine-lacustrine deposits at Maryut area were selected, and in tum the soils developed on such ongins should be differing in the pedo-chemical or physi.co-chemical characteristics. Furthermore, three soil profiles having an almost similar textural class and differed in land use periods (3-20 years) were selected to represent each one of the studied areas. The obtained results reveal that the soils of the selected three areas differ in their characteristics, particularly soil texture that categorized in fine (clay), coarse (loamy sand) and medium (sandy clay loam) grades for Sahl El Hussania, El Salhia and Maryut areas. Consequently, the response of soil properties; i.e., morphological features, bulk density, total porosity, hydraulic conductivity, available water range, pH, ECe, soluble ions, CEC, ESP, CaC03 and organic matter contents as well as nutrients status and parametric evaluation index soil productivity limitations; to the actual changes as a result of the applied agro-management practices:-was more related to many factors, i.e., physiographic position, origin of soil' materials (inherited soil features), period of agricultural utilization, characteristics of the grown plants, irrigation water quality, method of irrigation system, efficiency of soil drainage or field drainage system. Key words: Newly reclaimed soils, agro-management practices, land use periods for agricultural utilization.
Summary in Arabic.
Soil management--Egypt Soil physical chemistry. Reclamation of land--Egypt