Posted 11/21/2012 23:03 (#2710112 - in reply to #2710025) Subject: RE: A review question about organic "matter".
There are several long term experiments in Europe that include bare fallow maintained by tillage as one of the treatments.
As I recall, the organic matter levels dropped rapidly at first but eventually (after many decades) stabilized at ~ 1/3 to 1/2 of the organic matter levels in the cropped soils. The stable OM levels are closely related to clay content.
A review question about organic "matter".
