Rick
Well-Known Member
Here's a link to another good paper on citric/malic acid used for plants.
http://www.hindawi.com/journals/aag/2014/147278/
http://www.hindawi.com/journals/aag/2014/147278/
I have 4 left from a group of 5 seedlings from the Ten Shin shipment we did a couple (3?) of years ago.
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