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Agronomy 2016, 6(4), 53; doi:10.3390/agronomy6040053

Soil Chemistry Factors Confounding Crop Salinity Tolerance—A Review

School of Agriculture, Food and Wine, Prescott Building, Waite Campus, The University of Adelaide, Adelaide, 5005 SA, Australia
Academic Editor: Matthew Gilliham
Received: 26 August 2016 / Revised: 18 October 2016 / Accepted: 25 October 2016 / Published: 29 October 2016
(This article belongs to the Special Issue Crop Salinity Tolerance)
View Full-Text   |   Download PDF [605 KB, uploaded 29 October 2016]   |  

Abstract

The yield response of various crops to salinity under field conditions is affected by soil processes and environmental conditions. The composition of dissolved ions depend on soil chemical processes such as cation or anion exchange, oxidation-reduction reactions, ion adsorption, chemical speciation, complex formation, mineral weathering, solubility, and precipitation. The nature of cations and anions determine soil pH, which in turn affects crop growth. While the ionic composition of soil solution determine the osmotic and ion specific effects on crops, the exchangeable ions indirectly affect the crop growth by influencing soil strength, water and air movement, waterlogging, and soil crusting. This review mainly focuses on the soil chemistry processes that frustrate crop salinity tolerance which partly explain the poor results under field conditions of salt tolerant genotypes selected in the laboratory. View Full-Text
Keywords: soil chemistry; saline soils; dispersive soils; soil physical conditions soil chemistry; saline soils; dispersive soils; soil physical conditions
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Rengasamy, P. Soil Chemistry Factors Confounding Crop Salinity Tolerance—A Review. Agronomy 2016, 6, 53.

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