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Phytoremediation of Sodic and Saline-Sodic Soils

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Relation http://oar.icrisat.org/4006/
http://dx.doi.org/10.1016/S0065-2113(07)96006-X
 
Title Phytoremediation of Sodic and Saline-Sodic Soils
 
Creator Qadir, M
Oster, J D
Schubert, S
Noble, A D
Sahrawat, K L
 
Subject Soil Science
 
Description Sodicity-induced soil degradation is a major environmental constraint with
severe negative impacts on agricultural productivity and sustainability in arid
and semiarid regions. As an important category of salt-affected soils, sodic soils
are characterized by excess levels of sodium ions (Naþ) in the soil solution
phase as well as on the cation exchange complex, exhibiting unique structural
problems as a result of certain physical processes (slaking, swelling, and
dispersion of clay) and specific conditions (surface crusting and hardsetting).
Saline-sodic soils, another category of salt-affected soils, are generally grouped
with sodic soils because of several common properties and management
approaches. Sodic and saline-sodic soils occur within the boundaries of at
least 75 countries, and their extent has increased steadily in several major
irrigation schemes throughout the world. The use of these soils for crop
production is on the increase as they are a valuable resource that cannot be neglected, especially in areas where significant investments have already been
made in irrigation infrastructure. It is imperative to find ways to improve sodic
and saline-sodic soils to ensure that they are able to support highly productive
land-use systems to meet the challenges of global food security.
 
Publisher Academic Press
 
Date 2007
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4006/1/AdvAgron96_197-247_2007.pdf
Qadir, M and Oster, J D and Schubert, S and Noble, A D and Sahrawat, K L (2007) Phytoremediation of Sodic and Saline-Sodic Soils. Advances in Agronomy, 96. pp. 197-247. ISSN 0065-2113