Amendment Of Cations And Ions In The Soil Of Semi-Arid Areas Under By Halophytes Plant Cultivation.

Abstract

The problem of agricultural soil salinity resulting from environmental factors and excessive use in semi-arid areas, and finding biological and ecological solutions in this area are limited.

This work is the subject of a study of the possibility of phytodesalination  of the saline soils of the North Tébessa region (Morsott, El-Aouinet, Boukhadra), by the planting of two halophyte species, a local (Atriplex hilumus) and the other Australian (Atriplex nummularia) in different salinity environments.

We chose four different zones according to the salinity, Then we proceeded to the culture of the Atriplex plants. halimus and nummularia, which were obtained from the High Commission for Steppe Development (H.C.D.S), Tebessa. After two to six months of planting, we took soil samples adhering to the roots of the shrubs (Rizosphere), and the surrounding soil (control).

The results of analysis of the samples were compared between the soils of the two halophytic plants and the control soil, which showed that the application of Atriplex. halimus and nummularia produces a decrease of cations and anions and thus a decrease of the electrical conductivity (EC) with the opposite event of the low salinity region,

this is due to the phenomenon of osmotic adjustment of ions between plant roots and soil, and Atriplex's preference for saline environments.