Relation between grape harvest and soil microbial parameters determined within an investigation concerning soil coverage in viticulture

摘要

Different kinds of soil tillage (open soil, grassing in spring and in winter, permanent coverage with grass, straw application and two procedures of the application of special seeding for organic farming) were investigated in four different vineyards in the catchment area of the Neusiedler See (Austria). The relationships between the soil coverage, the grape yield harvest and soil microbial parameters (microbial biomass and respiration, colony forming units of several groups of microorganisms, contents of ATP, activities of xylanase, protease, actual and potential nitrification, N-mineralization, N-fixation, denitrification and decomposition of organic matter) were investigated. The assessment of sites and tillage considering yield and soil microbiology were contradictory.