Quote:
Originally Posted by edwmax
I didn't say, you said that, BUT you are the one that stated I should do experiments to prove foliar feeding does work.
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No, I said foiiar feeding of calcium doesn't work. And, I gave a research paper:
https://www.tandfonline.com/doi/abs/...03627909366887
"Foliar applied calcium is normally immobile, but can be induced to translocate by the saturation of adsorption sites in the leaf with divalent cations or by chelation. Best evidence shows that the calcium moves in a reverse xylem flow down water‐potential gradients."
That suggests that it can move down the xylem, most likely when upward xylem flow stops during rain or high humidity. Still, a 10 foot petiole xylem is a very long distance to "flow down water‐potential gradients," so I doubt it.
Quote:
Originally Posted by edwmax
By using GOOGLE one can find proper university research papers by PHDs all paid for by millions of tax payer's dollars.
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It's incumbent upon you to cite specific papers like I did. And, by that I mean about the efficacy of foliar feeding of calcium and nothing else.