Chloride complexes the aquo Cd2+ ion, decreasing its positive charge; consequently the complex is more mobile than the aquo Cd ion. The increased mobility allows the chloro complex(es) to move towards plant roots driven by transpiration, thereby increasing Cd uptake. Is this what you were asking about? If not please ask again
When there is a balance between the cd's, the exchange activity with other complex salts increases and the rate of ion exchange increases, but when the concentration in the soil is high, it has a negative effect on plant growth.
Yes. Hanaf (2021) studied the effect of salinity and pH on the absorption and accumulation of cadmium by the aquatic plant Lemna minor. Results revealed that cadmium absorption decreases as salinity increases where highesy cadmium concentration was obtaoned at pH 6.2.
Dear Muhammed Assaf
The concentration of heavy metals increased under saline conditions. Its due to:
1. Formation of soluble chloride-complexes with heavy metals
2. Competition between Na+ ions with metals for exchangeable site, thereby increasing their concentrations in the soil solution.
You can also go through my publications for the same.
Thank you.
Muhammed Assaf
The best approach is to define using the EC of soil and then proceed with TDS amount.
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