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A method for controlling the ionic activities of nutrients in solution culture

, : A method for controlling the ionic activities of nutrients in solution culture. Agronomy Abstracts 73rd annual meeting, American Society of Agronomy: 82

A method was developed to control the free cation activities of heavy metals in hydroponic sol. so as to study the factors affecting the uptake of heavy metals by plants. The activities of metals were buffered in sol. by ion exchange and chelating resins loaded at various ratios of element conc. The pH was also buffered by the exchange resins. The cation activities were varied by changing the element conc. in the exchange resins.


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