Total sulphur contents over a three-year period in different organic vineyards of Apulia region, South-Eastern Italy

摘要: Sulphur (S) is one of the most important pillars pest control in organic viticulture. In vineyards, sulphur used mainly for grapevine powdery mildew. Grapevine widely grown organically Apulian farms. The objective work was to evaluate total concentrations with ICP-OES four vineyard over a three-year period. Total contents were determined also other fields such as olive groves and pasture where no had been used. highest values found smallest quantities No relationship between applications its effective accumulations. A decrease S observed quantity 2005 2006 growing seasons whereas an increase field relatively low applied. Furthermore, higher sulphur-based treatments performed. Results obtained indicated that many factors must be taken into account while considering turnover, which are soil management, climate crop growth pattern. positive correlation matter contents. Our results, although confined short period time, underlined urgent need further investigations follow long-term dynamics Mediterranean soils.