"Stephen Henning" wrote in message
news
"symplastless" wrote:

The element sulfur would lower pH. However it keeps reverting back.

Actually elemental sulfur is very slow acting and lasts quite a while,
but should be built up slightly every couple years in smaller doses.
Its advantage is that it can provide a very strong effect if needed by
applying more.

You could add pine needles.

Pine needles and oak leaves work, but they rot and need to be
replenished annually. They are rather weak and can't be used to make
too large a change.
Yes but you are feeding the soil. that is huge!!!!!!! Some composted wood
chips for calcium and such would be nice.

See Trouble in the Rhizpsphere for starters.
http://www.treedictionary.com/DICT2003/shigo/RHIZO.html

and

http://www.treedictionary.com/DICT2003/shigo/CHEM.html

A suggestion by the late Alex L. Shigo -Rather than through leaves away,
why not put them into biodegradable lace-like bags, and use them for flowers
and garden mulch. Add a little fertilizer and by the next season the leaves
will be gone and the soil will be much better.

--
Sincerely,
John A. Keslick, Jr.
Consulting Arborist
http://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.