what is the major caus eof saline and alkaline land
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Due to the increased use of chemical fertilizers
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The causes of soil alkalinity can be natural or man-made: The natural cause is the presence of soil minerals producing sodium carbonate (Na2CO3) and sodium bicarbonate (NaHCO3) upon weathering. ... Also water-soluble sodium salts present in the ash enhance the sodium content in water.
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