The soil incorporation of brassica derived materials also pro-vides a significant amount of organic matter (OM) and nutrients.OM is a fundamental benefit for soil fertility, especially in warmcultivation areas viz. in the Mediterranean one, where soil OMdecline is causing increasing risks of desertification (Jones andMontanarella, 2003). Indeed, OM has positive effects on physical,chemical and biological soil properties. Some authors also high-lighted the potential of brassica DSM as an organic source of Nin agricultural production systems due to their N content (5–6%)and C:N ratio (8:1) (Gale et al., 2006). Fertilization with brassicaDSM increased N uptake and improved yields and quality of sev-eral crops like wheat, barley, sugar beets and carrots