Untersuchungen zum Einfluss ausgebrachter Hummelvölker auf Samenerträge von Rotklee

Summary

It is known that a lot of agricultural crops are dependent on pollination by insects. While managing of pollinators for some crops is common, the effect of artificially breed bumblebees on yields of Red Clover (Trifolium pratense) is less studied. Here we present results of a field experiments where boxes with bumblebees (Bombus terrestris) where used to raise the pollination and thus the seed yields. By comparing test plots in different fields the effects were investigated. In the experiment no significant differences were found between the plots with or without artificially breed bumblebees. Possible reasons are discussed.