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http://addyourarticles.netSalinity & Salinity Meters
Chemicals used in standard hydroponic nutrient solutions contain only minor quantities of common salt (sodium chloride) which does not normally constitute a problem. Usually, it is the amount of dissolved salts in the water used for making nutrient solutions.
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Posted in Hobbies and Special Interest 
6.12.2007 on 10:12.
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