Fortuna et al.
Cover crops are crimson clover, red clover, and annual ryegrass.
0- 25 cm depth in 1993 and 1998 prior to tillage. There were few differences between crops within the rotation. Incubation data are fit by non-linear regression to obtain slow and active pool size estimates and MRTs. The MRT of the slow pool is approximately 9 y. Many of the compost constituents have a field turn-over rate of several years and directly increase C sequestration.