After one day, treatment 1-PV/PF contained a higher
abundance of E. coli than all the other treatments. After a week,
the 1-PV/PF combination allowed greater survival of E. coli than
the 2-PV/RF treatment. In both microbially-impoverished treatments
(1-PV/PF and 2-PV/RF), E. coli remained abundant longer
than in both treatments where fresh compost was used (3-RV/PF
and 4-RV/RF), but there was no difference between the latter pair