Der Dauerbeobachtungsversuch Trenthorst - Ertragsentwicklung in verschiedenen Fruchtfolgen und Kulturen 2003 bis 2005

Summary

Only few long-term trials under temperate climate analyse the effect of different crop rotations. To compare various crop rotations (two cash crop and three livestock farms) under the same site conditions the long-term monitoring Trenthorst was established in 2003. A detailed description of the study is given in SCHAUB et al. (2007). The follow-ing paper presents the yields of three farms (dairy, cash crop and mixed) for the years 2003 to 2005. The dairy and cash crop farm obtained similar average yields, whereas the yields of the mixed farm were lower. This can be attributed to more inhomogene-ous fields and to the oil crops in the rotation of the mixed farm, which led to a lower yield potential of the rotation and to weed problems.