Sodic Soils: Irrigation Farming

Authored by: David Burrow

Encyclopedia of Environmental Management

Print publication date:  December  2012
Online publication date:  December  2012

Print ISBN: 9781439829271
eBook ISBN: 9781351235860
Adobe ISBN:

10.1081/E-EEM-120042754

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Abstract

Sodic soils, which occur naturally in many of the arid and semi arid regions of the world, exhibit poor chemical and physical properties. Soil management and farm operations are often difficult on these soils. Furthermore, farmers are frequently encouraged to use poorer quality saline–sodic wastewaters and groundwaters for irrigation, either alone or blended with surface waters, and this is leading to increased land area affected by sodicity. With increased use of saline–sodic irrigation water and its application to many soil types, farmers and scientists need to better understand the processes underpinning management of sodic soils for the maintenance or improvement of crop productivity.

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