Carbon mineralization in the soils added olive seeds beloing to archaic and present period supplied from Izmir Liman Tepe under water excavation works

In this study, the old olive seeds (OOS) which were approximately 2600 years old and the fresh olive ground seeds (FOS) were obtained from the İzmir Liman Tepe Underwater Research Center were added to the soil at the equivalent (1/1) to the content of olive soil carbon (C), the half (1/2) and quarter (1/4) of this value and were in vestigated the effects on C mineralization. C mineralization in the soil was determined by CO2 respiration method under controlled conditions (28 ° C, 45 days). It was found that the cumulative C mineralization of untreated olive soil was significantly lower than that of the old and fresh olive seeds (OOS and FOS), which were dried and ground at the equivalent (1/1), half (1/2) andquarter (1/4) of the carbon content of the olive soil (P = 0.002, P = 0.031, P = 0.007, P = 0.002, P = 0.000 and P = 0.002, respectively). When fresh and old olive seed sadded soil (1/1, 1/2 and 1/4) were assessed individually, there was no significant difference between C mineralization values (P> 0.05). Comparisons between opposite groups showed that the cumulant C mineralization was found to be significantly lower than that of fresh olive seed added soil, which is equivalent to 1/2 of the soil carbon content, to 1/2 of the old olive seed added soil (P = 0.024). In the light of the sefindings, the olive seed added to the soil was oldor fresh did not differ in terms of microorganisms and was used as a carbon source.