Weed management modifies functional properties of both weeds and microbial nitrogen-cycling communities in Mediterranean vineyards

Nitrogen (N) availability is crucial to maintaining crop productivity in agroecosystems, driven primarily by soil microbial processes such as nitrification and denitrification. Weeds are an integral part of agroecosystems and are involved in many processes related to the N cycle, but how weed management could shift plant-microbe interactions and thus N-cycling is yet to be determined. Using a network of 15 Mediterranean vineyards, we quantified the effect of five years of different weed management practices (chemical weeding, tillage, mowing) on the aboveground and belowground functional properties of weed communities and soil microbial N-cycling. Specific root length (SRL) of the tilled and mowed weed communities were 30 % and 44 % lower than in the herbicide-treated weed communities. Soil pH and texture were the main drivers of soil microbial activity as quantified by substrate-induced respiration (SIR), potential denitrifying enzyme activities to SIR ratio (PDEA:SIR) and potential ni..., Using a network of 15 Mediterranean vineyards, we quantified the effect of five years of different weed management practices (chemical weeding, tillage, mowing) on the aboveground and belowground functional properties of weed communities and soil microbial N-cycling., , # Weed management modifies functional properties of both weeds and microbial nitrogen-cycling communities in Mediterranean vineyards

[https://doi.org/10.5061/dryad.t4b8gtjb1](https://doi.org/10.5061/dryad.t4b8gtjb1)

# Description of the data and file structure

The table includes all the explaining variables and response variables necessary to analyses the dataset. Each line corresponds to a sampled quadrat, corresponding to a weed community and associated potential soil microbial activities, in a vineyard plot. The unique identifier is indicated by the “ID_Quadrat” column. Each vineyard was characterized by four quadrats. Thus, ID_Quadrat = “128_3” means that this line is associated with the third quadrat of the vineyard “128”.

The dataset contains all the following information :

-          Microbial potential activities (SIR, PDEA, PNEA, PNEA_SIR, PDEA_SIR, PNEA_PDEA)

-          Weed management variables (Cov_dur, Ferti_NPK, Vinasse, Nb.Mow.IR, Nb.Till.IR, Nb.Chem.IR, Nb.Chem.R, ...