Independent role of belowground organisms and plant cultivar diversity in legume-grass communities

摘要: A B S T R C Plant diversity and different groups of belowground organisms have been shown to influence the characteristics plant communities their associated aboveground organisms; however, little is known about interactions combined effects these biotic factors. Furthermore, while species richness has received a lot attention, intraspecific only recently come into focus community ecology. The objective this study was determine whether addition beneficial soil (arbuscular mycorrhizal fungi (AMF) anecic earthworms (Lumbricus terrestris L.) levels cultivar interactively productivity, weed establishment, leaf damage by herbivores pathogens, in legume-grass communities. Our results indicated that AMF increased productivity tended decrease herbivores. Earthworms attenuated effect on root colonization, but had no or herbivore diversity. Weed biomass significantly lower with high compared low We did not find interactive two organism demonstrate independent roles additive positive functions such as resistance against weeds field. suggest manipulations may be applied more frequently agriculture management programs aim for sustainable yield enhancement biocontrol weeds.