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Phytoremediation of Saline Soils for Sustainable Agricultural Productivity

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Plant Adaptation and Phytoremediation

Abstract

Salinization of soils is one of the major factors which severely affect the agricultural productivity worldwide. Due to salinity, more than half a billion hectares of land are not being properly used for crop production. Thus, there is a need to search means to improve saline soils so that such soils could support highly productive and meaningful land-use systems to meet the current challenges of global food security. Although permanent solution of soil salinity problem necessitates a sound drainage system to manage the rising water table, this option, being energy- and cost-intensive cannot be employed on a large scale on vast areas. Phytoremediation or biological approach, i.e., plant-based strategies for improvement of deteriorated soils is an appropriate option. Phytoremediation of saline soils can be done by cultivating suitable plant species as well as by Exploiting the ability of plant roots to improve the dissolution and enhance levels of Ca in soil solution to efficiently remove Na from the soil cation exchange complex and leach it from the root zone. During the amelioration process, soil-aggregates stability, root proliferation, soil hydraulic properties and availability of nutrients to plants are also improved. Such improvement in soil properties facilitates cultivation of less tolerant plants, improves the environment in general, and the climatic conditions by enhancing carbon sequestration.

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Correspondence to M. Yasin Ashraf , Muhammad Ashraf , Khalid Mahmood , Javed Akhter , F. Hussain or M. Arshad .

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Ashraf, M.Y., Ashraf, M., Mahmood, K., Akhter, J., Hussain, F., Arshad, M. (2010). Phytoremediation of Saline Soils for Sustainable Agricultural Productivity. In: Ashraf, M., Ozturk, M., Ahmad, M. (eds) Plant Adaptation and Phytoremediation. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-9370-7_15

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