On Jul 5, 8:58 am, "symplastless" wrote:
there are 17 essential elements that trees require. a mixture of 10-10-10
is just N-P-K. What about Fe, B, Mg, Mn, N and so on?

Sincerely,
John A. Keslick, Jr.
Arboristhttp://home.ccil.org/~treeman
and www.treedictionary.com
Beware of so-called tree experts who do not understand tree biology.
Storms, fires, floods, earthquakes, and volcanic eruptions keep reminding us
that we are not the boss.

Everyone of them contained in this-Adding organic material is even
better, a half
inch of sifted compost now and again won't even interfere with lawn
mowing. Or mow your lawn to discharge towards the tree and direct the
cuttings towards the dripline, trhe same goes for fall leaves.