On Mar 17, 8:33*pm, songbird wrote:
Gunner wrote:

* my searching last night did not find
anything that was worth a mention here.

* songbird- Hide quoted text -

- Show quoted text -

You might try searching Google Scholar with key words like; Casting
activity - Earthworm number - Mineral fertilizer - Organic manure - pH
- Earthworm biomass - fertilizer materials & earthworm activity,
worm & calcium in soil, etc.

here is one such experiment I read yesterday when I went to see what
is out the

http://tinyurl.com/4hq7kw2
or
http://www.sciencedirect.com/science...sea rchtype=a