North American Fruit Explorers mailing list at ibiblio

["kieran or donna" <redherring@tnaccess.com>]

Got out the calculator, 5 lbs zinc sulfate at the MAXIMUM dose rate,  would
cover 2420 sq ft or a 49 x 49 ft square.  Hmmm... this is interesting.  We
tend to be a bit short of zinc here, just a little, so if I could find a 5 #
bag, I could probably spread it very thinly over garden and around young
fruit trees for a MUCH lower dose.  I'll be doing about the same for boron,
not something you want to overdo.  My compost will not be spread evenly, so
I wouldn't dare do it that way.