Populations ranged from a low of 2 to a high of 340 earthworms per square meter over all the sites and tillage systems surveyed. In addition, nine no- till and only three tilled sites had significant ...
Constantly and voraciously, earthworms eat earth, dead leaves, decaying organic matter of all sorts. The waste material they throw off as worm casts is one of the richest of all plant foods.
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