Mike, I agree with you.
I think what we're seeing is a tremendous mish-mash of combined effects/outcomes.
A single plant will have a specific set of nutritional needs, that will be different from another, different plant. (I imagine there are differences within a single population too, but this is complex enough for me.)
Given a particular nutrient supply, the relative concentrations of ions, their ionic sizes and their energy states will all play a role in the uptake rate. Add to that the "pumps" that to some extent override those other factors.
So then we try to analyze what has been absorbed, not really knowing for certain how those factors above have affected them...
I think what we're seeing is a tremendous mish-mash of combined effects/outcomes.
A single plant will have a specific set of nutritional needs, that will be different from another, different plant. (I imagine there are differences within a single population too, but this is complex enough for me.)
Given a particular nutrient supply, the relative concentrations of ions, their ionic sizes and their energy states will all play a role in the uptake rate. Add to that the "pumps" that to some extent override those other factors.
So then we try to analyze what has been absorbed, not really knowing for certain how those factors above have affected them...
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