Data on organic carbon and nitrogen in soil physical fractions after 14 years of compost supply

The data contained in this dataset are related to the distribution and level of stabilization of organic C and total N in physical fractions after a 14-years-period of compost application to a peach orchard. Data refer to different type of fertilization (no fertilization, mineral and compost). Soil was sampled from the row at four depths and physically fractionated in macroaggregates, microaggregates and silt and clay. In all fraction organic C, total N, delta13C, and delta15N were analyzed.