Weeds present in agricultural fields provide habitats and trophic resources and as such contribute to the provision of ecosystem services such as pollination (quantity and quality of pollen and nectar in flowers) and biological control (seeds for pest natural enemies). The nature and amount of services provided depends on the floral composition of weed communities and this composition is driven by the combination of farming practices. Linking farming strategies to services is thus an important step to provide management guidelines for enhancing ecosystem services. We report here on such an analysis, based on agronomical and weed data collected annually in 70 field cores and field edges between 2008 and 2013 on the Fenay landscape platform, a 1000 ha area of arable farming located near Dijon (Eastern France). Our results indicate that across this study area, farmers adopt contrasted farming strategies and that the observed differences in field management practices lead to differences in the composition of weed communities. Our data also show that weed richness and weed community composition strongly differ between habitats, i.e. field edges and the core of the fields. Thus a phenological survey of the most frequent weeds was set up to estimate their success in providing flower and seed resources during the crop growing season and the quantity of flowers and seeds produced. We expect this success to differ between field cores and field edges and between contrasted field management strategies. Indices of services provision for observed weed communities will derive from the recorded abundance of species and their success and level of trophic resources provision under different habitats and management strategies.