One of my favorite worm pages is "Earthworms and Crop Management" from
Purdue University agronomist Eileen J. Kladivko. While it's mostly crop
(as opposed to pasture) oriented, it makes a good primer.
Especially like this table:
Table 1. Earthworm populations on silty clay loam near West Lafayette, IN.
Crop* Management* Earthworms/m2
Cont. corn Plow 10
Cont. corn No-till 20
Cont. soybeans Plow 60
Cont. soybeans No.till 140
Bluegrass-Clover Alleyway 400
Dairy pasture Manure 340
Dairy pasture Manure(heavy) 1300
So sure, no-till cropping can double earthworms. But if earthworms are
what you want, you know what you need to do.
The page is at:
http://hermes.ecn.purdue.edu:8001/http_dir/acad/agr/extn/agr/acspub/html/AY/
ay279.html
Craig
Craig Cramer
mailto:cdcramer@clarityconnect.com
Sustainable Farming Connection -- "Where farmers find and share information."
http://sunsite.unc.edu/farming-connection
"The water will never clear up 'til you get the hogs out of the creek."
-- Jim Hightower
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