Reclamation of saline and sodic soil through phytoremediation

Abstract

Agricultural productivity is threatened worldwide because of salt-affected soils. Various remediation techniques have been successfully developed and are being utilized, but still there is no proper technical method under different conditions. In different situations, phytoremediation technically as well as economically is the best available option. More focussed efforts are required to measure the contribution of phytoextraction to the remedial procedure because the main mechanism behind salt phytoremediation is still not known. To improve the effectiveness and quality of the treatment of salt-affected soils, many new methods are used like mixing of treatment types, mixed plant cultures, biostimulation, etc. which can be extended to new methods like co-treatment and salt flow control measures. The new methods are in preliminary stages that require further research.